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Question You have Sony that wont power on and standby light blinks Help and suggesti ( AVS Forum Direct View (single tube) CRT Displays )
Updated: 2008-05-16 15:54:32 (547)
You have Sony that wont power on and standby light blinks Help and suggesti

I saw some others with the problem..set comes on for a sec. then goes into a protection mode...the light on mine blinks 3 times...

When it first happened I took the back off and (WOW, lol) very dirty, cleaned it out thinking that was the problem...And when I plugged it back in and turned it on it came right on? But, next day same problem. This time I just unplugged it for a few minutes and it came on (keep in mind though, the first time this happened I had tried that, unplugging it..with NO success then).

I guess I am asking if anyone else found out something, like what is the problem???

Thank You for any info.
PS: I have had this TV for about 5 years now and love it. I would hate for this to be a unfixable or cost more then its worth to fix.




I decided to have the name of the thread changed so people can post and read about these kinds of problems with these TVs
I just think we needed a thread for this, as I have read here and other forums of these problems, but they are spread all over the place....
Please feel free to post here with your problem, fix, or answer to another users problem But please, DO NOT POST HERE your complaint, preferrence of brand or model, or anything other then what relates to the thread title!!! Thank You

Thank You, have a good day and good luck with your Sony

Answers: You have Sony that wont power on and standby light blinks Help and suggesti ( AVS Forum Direct View (single tube) CRT Displays )
You have Sony that wont power on and standby light blinks Help and suggesti

doveman,

Congratulations on your successful repair! Good job!

Also, the legs can be cut if you use a small shear cutter.

I used an $4.99 Xcelite 170M from my local Fry's Electronics and that worked fine. Here's what it looks like:

http://www.remelectronics.com/Showca...nShowcaseID=15

This tool needs to be small so that you can reach the legs without being blocked by the surrounding components on the board. I actually slid the rubber handles off the tool to allow for even easier access in some of the tighter spots.

Bob

RobertF

You have Sony that wont power on and standby light blinks Help and suggesti

Hello I have a xbr910. The red light is blinking twice every couple of seconds for about 2 months now. the set still works. I have done a search not to much about 2 blinks. anyone know what IC's need to be replaced. should i wait for the set to stop working or risk really messing things up if the fix doesn't work. also the set doesn't seem to be as sharp as it once was since this started happening or is that just my imagination.

pcp33

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by pcp33
Hello I have a xbr910. The red light is blinking twice every couple of seconds for about 2 months now. the set still works. I have done a search not to much about 2 blinks. anyone know what IC's need to be replaced. should i wait for the set to stop working or risk really messing things up if the fix doesn't work. also the set doesn't seem to be as sharp as it once was since this started happening or is that just my imagination.
I wouldn't worry about it until it stops working.

But I think you might be able to access the internal diagnostic menu to see if there's a fault code recorded. Search the forum for how to do that.

Also, did you try unplugging the TV overnight? Sometimes that can reset the internal electronics.

Bob

RobertF

You have Sony that wont power on and standby light blinks Help and suggesti

Hi everyone
I thought I would check in on this forum thread I started to see how its going.
I am very happy to see this is helping most (sorry for those with problems not solved). Also, an update to mine... Still working great

Special thanks to Robert
Thanks to everyone for supporting AVS forums, as this is the best place for this kind of help!


PS: I also had my TV calibrated (ISF) and it looks great now (better then when I bought it). FYI... It didn't cost an arm and a leg with who I used and he took care of everything (geo., grayscale, and on all inputs). He will even travel a good distance from home to do it (he drove around 70 miles to me, 1 way).



Thanks again all

Mark Goetz

You have Sony that wont power on and standby light blinks Help and suggesti

I have a KV36XBR400 and have the dreaded 7 blinking lights.... I also have had 4 blinking lights.

Well, I found this on the web after some searching.

Hope it helps someone.

http: //www.eserviceinfo.com/downloadsm/1892/Sony_DX-1A.html

Sean Riley

Aluvial

You have Sony that wont power on and standby light blinks Help and suggesti

Sony Model# KV-27HS420 with the dreaded 6 blink error code.

I replaced both ICs (MCZ3001DB) and the set is good as new.

I also have Sony Model# KV-36XBR800 that recently developed the same issue.

Looks like round two with a soldering iron.

Thanks to the great info. in this thread I am saving a ton of cash doing the work myself.

Easy repair and I get to keep the sets for awhile longer until I decide to pull the trigger on both and get LCD replacements...

net_synapse

You have Sony that wont power on and standby light blinks Help and suggesti

First and foremost, a big "Thank you" to Mark Goetz for kindly responding to my email about my TV problem. I followed his instructions and read every post in this thread. Mark, I really appreciate your prompt response.

I am happy to report that I fixed my Sony KV-34XBR800. It was having difficulty powering up after 5 years of daily use. If I left it alone for a few days, it would still turn on fine, but the "leave alone" time period soon got longer and longer. I believe it had 6 or 7 blinks going on.
It turns out that only (1) IC was bad--the one at the IC8002 location.
I read in the posts that some folks regretted not photographing their repair, so I figured it was the least I could do to give back to this great forum. I went overboard with MS Paint on purpose, so you can poke fun at the photos all you want. I hope the photos aren't too big.

Parts: (2) 18-pin IC Sockets from all electronics for .30 each, plus $7.00 shipping = $7.60
(2) MCZ3001DB Shindengen IC's from tristate module for $5.99 each, plus $2.25 shipping = $14.23
Total cost: $21.83

"Step 1" shows how easy it was to shift the heavy TV sideways, while remaining on it's stand, to remove the screws and cover. Arrow points at general location for those troublesome "MCZ" IC's.

"Step 2" shows the dusty identified chips. The dust was not nearly as bad as I thought it might be.

"Step 3" shows close-up of chips.

"Step 4" shows a way to slide the TV over and access the underside without lifting the TV.

"Step 5" shows target zone.

"Step 6" shows view of target zone from underneath.

"Step 7" shows Dremel extension with cutting attachment. This made cutting through the plastic bracket a snap. The cutting wheel's diameter is not wide enough to go through the entire width of the bracket, but that won't matter.

"Step 8" shows Charlie Brown's shirt-colored cutting zones, with both IC's identified underneath.

"Step 9" shows pliers to easily snap off the bracket, as not much plastic remained to secure it.

"Step 10" shows exposed circuit board.

"Step 11" shows opposite side of cutaway plastic bracket to show that it's not solid.

"Step 12" shows mirror view to help check your desoldering job. Using a Radio Shack desoldering bulb made this part really easy.

"Steps 13 and 14" show a chip puller in use for removing and replacing it with the new 6501 chip first. When the TV didn't power up, I replaced the old 6501 and repeated the same thing with the 8002. Goooooooal!!!

Dave - 1
Landfill - zero

eclipsedave

You have Sony that wont power on and standby light blinks Help and suggesti

photos 6-10

eclipsedave

You have Sony that wont power on and standby light blinks Help and suggesti

photos 11-14

eclipsedave

You have Sony that wont power on and standby light blinks Help and suggesti

I forgot to mention that I first soldered the IC sockets in place and that soldering upside down was challenging, but not impossible. I can see where turning the TV on it's face would really help.
I could have saved time by trying IC8002 first and then I wouldn't have had to cut away any plastic, but now there are 2 IC sockets in place and I've got an extra MCZ3001DB for any needed replacement in the future. With sockets installed, it should be a quick and easy job. I used a Weller WTCPT soldering iron and some no-clean solder for the job.
Note: Without the aid of that chip puller, I would have had real difficulty removing the original chips. Even with the TV set unplugged, it's like a real life game of Milton Bradley's Operation.

eclipsedave

You have Sony that wont power on and standby light blinks Help and suggesti

You are very welcome Dave
Congrats on the successful repair.. Yes, it is good to hear another one of these fine TVs saved from landfill

One thing I will say. You are a brave man for balancing that TV like that! I would be afraid it end up on me Kidding aside. Thanks for the good pics too.

Thanks again to this site and everyone here

Mark Goetz

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by Aluvial
I have a KV36XBR400 and have the dreaded 7 blinking lights.... I also have had 4 blinking lights.

Well, I found this on the web after some searching.

Hope it helps someone.

http: //www.eserviceinfo.com/downloadsm/1892/Sony_DX-1A.html

Sean Riley
Thanks for the info Aluvial
and
Congrats net_synapse for another success

Mark Goetz

You have Sony that wont power on and standby light blinks Help and suggesti

I also have recently got the complete service manual for the 500 and 800 series pdf form. Kinda late for my repair, but here is what the blinks stand for......
----------------------------------------------------------------------
When an error occurs, the STANDBY/TIMER LED will flash a set number of times to indicate the possible cause of the problem. If there is more than
one error, the LED will identify the first of the problem areas.

Power does not turn on Does not light _______
?? Power cord is not plugged in.
?? Fuse is burned out (F501). (A Board)
? Power does not come on.
? No power is supplied to the TV.
? AC Power supply is faulty.
+B Overcurrent (OCP)* 2 times
?? H.OUT (Q5030) is shorted. (D Board)
?? +B PWM (Q5003) is shorted. (D Board)
? Power does not come on.
? Load on power line shorted.
Low +B Overvoltage (OVP) 3 times
?? IC6505 is faulty. (D Board)
? Has entered standby mode.
Vertical Deflection Stopped 4 times
?? 15V is not supplied. (D Board)
? IC5004 is faulty. (D Board)
? Has entered standby mode after Horizontal raster.
? Vertical deflection pulse is stopped.
? Power line is shorted or power
supply is stopped.
White Balance Failure (not balanced) 5 times
?? Video OUT (IC9001-IC9003) is faulty. (CH, CX Board)
?? CRT drive (IC2801) is faulty. (B Board)
?? G2 is improperly adjusted.**
? No raster is generated.
? CRT cathode current detection reference pulse output is small.
LOW +B OCP/OVP (overcurrent/overvoltage)*** 6 times
?? +5 line is overloaded. (A, B, M Boards)
?? +5 line is shorted. (A, B, M Boards)
? IC504 is faulty. (A Board)
? No picture
Horizontal Deflection Stopped 7 times
? No picture

* If a +B overcurrent is detected, stoppage of the vertical deflection is detected simultaneously. The symptom that is diagnosed first by the
microcontroller is displayed on the screen.
** Refer to Screen (G2) in Section 2-5 of this manual.
*** If STANDBY/STEREO LED flashes six (6) times, unplug the unit and wait 10 seconds before performing the adjustment.

--------------------------------------------------------------------------
This is the way it is stated in the manual, of course we know 6 or 7 blinks is one of those trouble ICs. I just stated this for someones reference.

Also, here is some more info for the built in self-diagnostic....
--------------------------------------------------------------------------
Self-Diagnostic Screen Display
For errors with symptoms such as ?power sometimes shuts off? or ?screen sometimes goes out? that cannot be confirmed, it is possible to bring up past occurrences of failure on the screen for confirmation.

To Bring Up Screen Test
In standby mode, press buttons on the Remote Commander sequentially, in rapid succession, as shown below:
DISPLAY Channel 5 Sound volume - Power ON.

SELF DIAGNOSIS
2: +B OCP 0
3: +B OVP 0
4: VSTOP 0
5: AKB 1
6: LOWB 0
7: H-STOP 0
101: WDT 24

Handling of Self-Diagnostic Screen Display
Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen during repairs. When you
have completed the repairs, clear the result display to ?0?.
Unless the result display is cleared to ?0?, the self-diagnostic function will not be able to detect subsequent faults after completion of the repairs.

Clearing the Result Display
To clear the result display to ?0?, press buttons on the Remote Commander sequentially when the diagnostic screen is displayed, as shown below:
Channel 8 ENTER

Quitting the Self-Diagnostic Screen
To quit the entire self-diagnostic screen, turn off the power switch on the Remote Commander or the main unit.

--------------------------------------------------------------------------

Mark Goetz

You have Sony that wont power on and standby light blinks Help and suggesti

Sorry... here is what the letters stand for in the self-diagnostic....

--------------------------------------------------------------

+B overcurrent (OCP)
Occurs when excessive current flows through R5013. The increase in voltage across R5013 causes the output of Q5004 to go high, and this high signal goes to the micro.

+B overvoltage (OVP)
IC6505 detects +B OVP condition and turns on Q6522. This sends a high signal to the micro and also shuts down the AC relay.

V-STOP
Occurs when an absence of the vertical deflection pulse is detected by pin 24 of IC2801 (B Board). Power supply will shut down when waveform interval exceeds 2 seconds.

White Balance Failure
If the RGB levels* do not balance within 2 seconds after the power is turned on, this error will be detected by IC2801. TV will stay on, but there will be no picture.
*(Refers to the RGB levels of the AKB detection Ref pulse that detects 1K).

Low B OCP/OVP
Occurs when set 5V is out.

Horizontal Deflection Stopped
Occurs when either:
1) a +B overcurrent is detected (IC5007), or
2) overheating is detected (Thermistor TH5002).

---------------------------------------------------------------

Hope this helps

Thanks
Mark

Mark Goetz

You have Sony that wont power on and standby light blinks Help and suggesti

Well, like many others, I have started researching why my kv40xbr800 won't turn on and I have the 6 blink standby light. I am trying to find the parts for the ic's on the sony website, but all I can find are manuals. Can someone give me a link to where I can order these? I also saw that someone replaced the full Dboard. How difficult ( am fairly handy with tools, etc but never worked on circuit boards before) is it to replace the ic's?

mxrider

You have Sony that wont power on and standby light blinks Help and suggesti

I'm consistently getting 6 or 7 blinking lights on my 34xbr910 when I try to turn it on. Sometimes it works, most of the time it doesn't. I managed to get into the service menu tonight and the values are all set to zero, with the exception of "low b" which is "1". Does this narrow down what part I need to replace? I'd also have to get ahold of the service manual to attempt any repairs, as I opened my set up tonight and have no idea how to get the D board out so I can desolder the two IC's that everyone in this thread has been replacing.

Shadowknight

You have Sony that wont power on and standby light blinks Help and suggesti

mxrider

Please try post #108 -111 for the step-by-step fix.

Parts2) 18-pin IC Sockets from ALLELECTRONICSDOTCOM 1-800-826-5432 for .30 each, plus $7.00 shipping = $7.60
(2) MCZ3001DB Shindengen IC's from TRISTATEMODULEDOTCOM 1-800-203-7484 for $5.99 each, plus $2.25 shipping = $14.23

Total cost: $21.83

It really wasn't that hard to replace the chips. If you need more info, perhaps I can help?

--------------------------------------------------------------------

Shadowknight

Your "Sometimes it works, most of the time it doesn't." symptom sounds like the same power issue I had. Perhaps the same chips need replaced? Do posts #114 -115 help?

eclipsedave

You have Sony that wont power on and standby light blinks Help and suggesti

Actually, I found posts 114-115 kind of confusing. I know it's quoting from the manual verbatim, and the writers of the original document just weren't clear.

Shadowknight

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by eclipsedave
mxrider

Please try post #108 -111 for the step-by-step fix.

Parts2) 18-pin IC Sockets from ALLELECTRONICSDOTCOM 1-800-826-5432 for .30 each, plus $7.00 shipping = $7.60
(2) MCZ3001DB Shindengen IC's from TRISTATEMODULEDOTCOM 1-800-203-7484 for $5.99 each, plus $2.25 shipping = $14.23

Total cost: $21.83

It really wasn't that hard to replace the chips. If you need more info, perhaps I can help?

--------------------------------------------------------------------

Shadowknight

Your "Sometimes it works, most of the time it doesn't." symptom sounds like the same power issue I had. Perhaps the same chips need replaced? Do posts #114 -115 help?
TYVM!

All parts now ordered. Will update once I give this a go.

mxrider

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by Shadowknight
Actually, I found posts 114-115 kind of confusing. I know it's quoting from the manual verbatim, and the writers of the original document just weren't clear.
Sorry about that shadowknight.... It is out of the manual. Just to basically show what Sony says what the blinks mean... Now as to what we have been covering here (for the most part), is that when your TV has certain blinks and won't come on. Is it is probably the MCZ3001D chip(s), but in no way is a sure thing .........

I hope I didn't discourage you or anyone reading those post and am sorry for that.

Thanks to everyone here


PS: true. it may not be word for word, and that could have been from my cut and paste, too. In next post I will attach a copy of those pages and maybe it will make more sense?

Mark Goetz

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by Shadowknight
UGH!! There's a screw holding the d-board in, way at the back, and since I can't see where it is, I can't get the screw out!

Is there a schematic somewhere I can look at? Is there a way for me to pull the board out in the "service position" I've occasionally heard about? I've had to unplug a bunch of cables to get relatively decent access to the board, and I'm thinking there HAS to be an easier way. It's going to be a bitch to plug some of those cables back in, given that some are plugged into the very back of the board.
Actually there is NO screws holding the board chassis in the frame, it is clips...
hmmmmmm I don't know if this will help?
I believe with these TVs that they are all the same...

Mark Goetz

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by mxrider
Well, I'm happy to say that my wonderful tv has it's great picture again! I left the television on the stand that I got with the tv and was able to access one of the chips underneath. I installed a socket first then plugged the new chip in. I figured I'd give it a try since I was going to have to take the tv off of the stand to access the second chip and walah! Now I have an extra chip and an 18 pin socket for future use. Thank you all for your help!
Congratulations on your successful repair!

One great thing about installing the socket is that, if that IC should ever fail, installing a replacement will be very easy.

RobertF

You have Sony that wont power on and standby light blinks Help and suggesti

Well, I'm happy to say that my wonderful tv has it's great picture again! I left the television on the stand that I got with the tv and was able to access one of the chips underneath. I installed a socket first then plugged the new chip in. I figured I'd give it a try since I was going to have to take the tv off of the stand to access the second chip and walah! Now I have an extra chip and an 18 pin socket for future use. Thank you all for your help!

mxrider

You have Sony that wont power on and standby light blinks Help and suggesti

UGH!! There's a screw holding the d-board in, way at the back, and since I can't see where it is, I can't get the screw out!

Is there a schematic somewhere I can look at? Is there a way for me to pull the board out in the "service position" I've occasionally heard about? I've had to unplug a bunch of cables to get relatively decent access to the board, and I'm thinking there HAS to be an easier way. It's going to be a bitch to plug some of those cables back in, given that some are plugged into the very back of the board.

Shadowknight

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by RobertF
I think the "BWOP" noise you are both describing is just the automatic degaussing system. If so, that's normal and it's nothing to be concerned about.

And for romadant, I wouldn't attempt to make any repairs as long as your TV is always starting. If it ain't broke, don't fix it.
Good advice... and I'm going to take it. I won't mess with it until it becomes a real problem. The 3 second delay doesn't seem to matter much. Thanks!

romadant

You have Sony that wont power on and standby light blinks Help and suggesti

Is there anywhere on-line with instruction on how to dissassemble a 34xbr910 so I can remove the D-board so I can replace the two ICs that are known to go bad?

Shadowknight

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by romadant
LOL! I'm glad I'm not the only one hearing the BWOP And now that I double checked last night it's 6 blinks. So, I guess I need to fix this. Or, I could just get the parts and keep the on standby for if/when it finally stops powering up. It BWOPs, blinks, and the pic always apears about 3 seconds later so I kinda feel like just waiting for it to fully go before digging into it...

...then again, it will probably die right when I'm watching something really importain so maybe I should make the fix now and be done with it!
I think the "BWOP" noise you are both describing is just the automatic degaussing system. If so, that's normal and it's nothing to be concerned about.

And for romadant, I wouldn't attempt to make any repairs as long as your TV is always starting. If it ain't broke, don't fix it.

RobertF

You have Sony that wont power on and standby light blinks Help and suggesti

romadant posted:

So what does it mean if when I hit the power button the TV makes a sound (hard to describe, kinda like bwop) and the red light flashes 3 times and then the picture appears about 3 seconds later? It's done it for over a year - always the exact same and it always works and never fails to power on or display a picture. Just thought the sound and the 3 blinks were strange.
-------------------------------------------------------
eclipsedave sez:

Not kinda. You sir are correct: It was "BWOP!" LOL! That's the exact same sound mine would make, except mine would not fully power up and I had to fix it. Posts #108 -111.
-Dave

eclipsedave

You have Sony that wont power on and standby light blinks Help and suggesti

LOL! I'm glad I'm not the only one hearing the BWOP And now that I double checked last night it's 6 blinks. So, I guess I need to fix this. Or, I could just get the parts and keep the on standby for if/when it finally stops powering up. It BWOPs, blinks, and the pic always apears about 3 seconds later so I kinda feel like just waiting for it to fully go before digging into it...

...then again, it will probably die right when I'm watching something really importain so maybe I should make the fix now and be done with it!

Thanks for the great posts & pics!

romadant

You have Sony that wont power on and standby light blinks Help and suggesti

So what does it mean if when I hit the power button the TV makes a sound (hard to describe, kinda like bwop) and the red light flashes 3 times and then the picture appears about 3 seconds later? It's done it for over a year - always the exact same and it always works and never fails to power on or display a picture. Just thought the sound and the 3 blinks were strange

romadant

You have Sony that wont power on and standby light blinks Help and suggesti

I hope this explains it better.... Before I just tried to paste it here and maybe that was a bad idea
Sorry! for any confusion.

Mark Goetz

You have Sony that wont power on and standby light blinks Help and suggesti

I have a 36xbr800. I was getting the 7 flashes, I replaced the 2 mcz3001d chips on the "D" board with mcz3001db chips. I noticed that some of the pins were not soldered to the board on the original chips. So I marked those non soldered pins and did NOT solder them with the new chips. After I put it back together, the TV now gives me three flahes from the LED. I read on here or somewhere that 3 flashes means just the one mcz3001db is malfunctioning. Does anyone know if im getting better or worse in the tv repair situation?
ALSO does anyone have a close up picture of the two chip soldered to the board so I can see what pins the solder bubbles make contact with other areas on the "D" board.

Any help would be appreciated.

Scuff

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by Scuff
I have a 36xbr800. I was getting the 7 flashes, I replaced the 2 mcz3001d chips on the "D" board with mcz3001db chips. I noticed that some of the pins were not soldered to the board on the original chips. So I marked those non soldered pins and did NOT solder them with the new chips. After I put it back together, the TV now gives me three flahes from the LED. I read on here or somewhere that 3 flashes means just the one mcz3001db is malfunctioning. Does anyone know if im getting better or worse in the tv repair situation?
ALSO does anyone have a close up picture of the two chip soldered to the board so I can see what pins the solder bubbles make contact with other areas on the "D" board.

Any help would be appreciated.
Scuff, you can just solder them all. cause they weren't on original is just because they do nothing. I had soldered all pins on mine and makes no difference. As for it giving you 3 flashes instead of 7, probably means soldering is bad or 1 or both chips are bad (would be my best guess).

Did you save old ICs? Did you buy any extra ICs?
If you say yes (either question), then replace those until you have same problem (original 7 flashes) or is fixed.
Putting old ICs back in, could just indicate bad soldering or bad IC.
Replacing one at a time (with new), indicates that one of your new replacements is bad (it happens, could get a bad IC from factory or part supplier).

Good luck


I almost forgot to mention there is another mcz3001d chip on the A-board. I have read somewhere before that it is another possible cause for errors

Mark Goetz

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by Mark Goetz
Scuff, you can just solder them all. cause they weren't on original is just because they do nothing. I had soldered all pins on mine and makes no difference.

I almost forgot to mention there is another mcz3001d chip on the A-board. I have read somewhere before that it is another possible cause for errors
I agree. Solder all of the pins.

And yes, there is a third MCZ3001D IC on the A-Board of some models. I know that there's one on the A-Board of my KV-36XBR400. A technician at a local authorized Sony service center once told me that 3rd IC is sometimes the cause of the power up problems. He also said that some unsuccessful repairs are the result of this IC being missed as a potential problem. (IC6501 on the D-Board was the culprit on my set.)

RobertF

You have Sony that wont power on and standby light blinks Help and suggesti

Thank you for the information provided in this thread. My KV-36XBR400 had the seven flashes problem and a quick search on Google took me to this thread.

I ordered four chips from TSM (two replacements for future), four sockets from Radio Shack (four incase I messed up the soldering of the sockets), and some .036 60/40 solder. All total I think my bill + shipping was ~$33. That beats the pants off of the local repair guy that wanted $50 to come out to look at it. When I told him what the problem probably was, based on information on this site, I was told that IF (with his emphases heavily on IF) this is the problem, it would cost between $250-$400 depending on what else he finds.

A little history on me, which may provide hope to those that are nervous about doing this:
I have never soldered in my life. I have never desoldered in my life. While I have assembled my own computers before, all I did was plug things into sockets on the MB, never have I actually "built" the components. This whole thing was new to me. However after reading this entire thread (at least three times), I figured I would give it a shot. I took the photos that eclipsedave provided along with the information provided by RobertF, printed it out, ordered the parts, and went to it
...
...
...
ok that was a lie. I ACTUALLY went down to my local Radio Shack and purchased a breadboard and a few small components (two resistors, two 8 pin sockets, and one 8 pin chip). I then spent an hour or so each night for four nights soldering and desoldering the parts until I understood what needed to be done. The "test" parts costs me roughly $20 but it was well worth it. When I actually was in the TV and desoldering, I just kept thinking back to what I had done in practice. A funny thing: During practice I found that the solder pump worked much better than the wick....however during the actual desoldering on the TV I found the wick to work 1000% better. I had four total pins that would not cleanly desolder, but once again falling back to this thread (and the pinball machine article RobertF/Bob wrote), I remembered the suggestion to resolder those and try again...sure enough they came right out. I found the soldering part to be much much easier than the desoldering.

Some tips for folks like me:
1) Place the TV on its face. I tried to place it on its top but it would not balance, plus im not sure this is good for the TV.
2) If your TV is like mine, you will need to not only cut the bar of plastic that eclipsedave showed in his picture, but you will also need to cut away a little of the base "plate" (plastic). I could not get my board to move out enough to not cut this base plate, but a quick cut with the high speed grinder took care of that.
3) Practice on either some old components you have laying around (like an old modem), or purchase a breadboard and some cheap components from Radio Shack. The practice here will help, lord knows it helped me.
4) READ THIS ENTIRE THREAD and print out eclipsedave's pictures.
5) READ THIS ENTIRE THREAD and read RobertF's pinball repair PDF.
6) Read #4 and #5 again.
7) Remember to ground yourself before you handle the board or any of the chips.
8) Take your time, esp when desoldering. If one wont come clean, stop, let the part/board cool. Resolder the pin, stop, let the part/board cool. Then desolder again.
9) THIS IS A GOOD ONE I THINK : If you are going to use sockets like I did, make sure you "fit" the chips into the sockets BEFORE you solder the sockets into place. I am sure all of the pros on this forum are giggling as they read this, but I did not "fit" my first chip into the socket and spent probably 10 minutes trying to get it to fit into the socket. Finally I took it and fitted it into the other socket (that I had not soldered yet) and what do you know, it went right in after that.

Anyway, thanks again for the awesome information. Another 250lb TV is working instead of making its way to a dump somewhere.


**EDIT** I forgot to mention that I just used my dads old 15w solder iron, worked like a champ. I wanted to get a nice temp controlled one, but no more soldering than I plan to do I figured the borrowed 15w one would be fine .

waduncan

You have Sony that wont power on and standby light blinks Help and suggesti

waduncan,

Congratulations on your successful repair! And thank you for taking the time to detail your experience. I am sure that will help others with their repair attempts.

And I should note that I did not write that excellent pinball repair/soldering guide. I just provided a link to it.

Here's the link again:

http://www.pinrepair.com/begin/

I think the author's name is Clay Harrell.

Bob

RobertF

You have Sony that wont power on and standby light blinks Help and suggesti

Guys,
I have read thru the post but am not sure what the solution is to the TV problem I have

I have a Sony kv36xbr400 tv that does the following

When left overnight not connected to outlet, the tv comes on for 15 minutes. I have video and sound and then it powers off automatically. Trying to power it up again brings the tv up with 5 blinks for few seconds and then goes off again. I kept trying to bring it up and same thing keeps happening.

If left overnight again, works for few minutes.

I had a tech come over and he said that there were no faults listed in the diagnostics. He believes it is on the d board but can't tell what it is. I dropped the tv over to his shop and he called stating that he could not tell what was wrong. The tech believes something is telling the computer to shutoff the TV to avoid damage to some part.

I am just looking for any advice in case someone has seen this before.

Thanks

bldrnr

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by bldrnr
Guys,
I have read thru the post but am not sure what the solution is to the TV problem I have

I have a Sony kv36xbr400 tv that does the following

When left overnight not connected to outlet, the tv comes on for 15 minutes. I have video and sound and then it powers off automatically. Trying to power it up again brings the tv up with 5 blinks for few seconds and then goes off again. I kept trying to bring it up and same thing keeps happening.

If left overnight again, works for few minutes.

I had a tech come over and he said that there were no faults listed in the diagnostics. He believes it is on the d board but can't tell what it is. I dropped the tv over to his shop and he called stating that he could not tell what was wrong. The tech believes something is telling the computer to shutoff the TV to avoid damage to some part.

I am just looking for any advice in case someone has seen this before.

Thanks
So has the tech given up on a repair? Is it an authorized Sony repair shop? Is he familiar with the fairly common MCZ3001D failures.

What many repair shops attempt is to replace the D-Board but the cost for that would probably exceed the cost of a working replacement TV of the same model.

Is the TV still at the repair shop? If so, you might want to have the two MCZ3001D ICs on the D-Board replaced and see if that solves the problem. Of course, check on the total cost of that repair before proceeding. The ICs themselves can be found for $5 or $6 each online.

Or you could attempt to replace those yourself.

Good luck!

Bob

RobertF

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by RobertF
So has the tech given up on a repair? Is it an authorized Sony repair shop? Is he familiar with the fairly common MCZ3001D failures.

What many repair shops attempt is to replace the D-Board but the cost for that would probably exceed the cost of a working replacement TV of the same model.

Is the TV still at the repair shop? If so, you might want to have the two MCZ3001D ICs on the D-Board replaced and see if that solves the problem. Of course, check on the total cost of that repair before proceeding. The ICs themselves can be found for $5 or $6 each online.

Or you could attempt to replace those yourself.

Good luck!

Bob
Bob,
Thanks for the quick reply. The tech already replaced the MCZ3001D and that did not solve the problem. He has basically given up on the set since he does not see the problem. I was just trying to save the set.

Like I said no diagnostic errors.


Pushkar

bldrnr

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by bldrnr
Bob,
Thanks for the quick reply. The tech already replaced the MCZ3001D and that did not solve the problem. He has basically given up on the set since he does not see the problem. I was just trying to save the set.

Like I said no diagnostic errors.


Pushkar
Did he replace both of the D-Board MCZ3001D ICs?

And there's also a third one on the A-Board that a repair tech at an authorized Sony repair center once told me could also cause power up problems. HE said that sometimes that one is missed as a possible cause.

If the tech is fairly convinced that the problem is on the D-Board, you could send it off to an outfit like tristatemodule.com: http://tristatemodule.com/

But that might not be worth the cost. About a year and a half ago they quoted me $150 to repair the D-Board for a KV-36XBR400. And you have to pay shipping both ways.

RobertF

You have Sony that wont power on and standby light blinks Help and suggesti

Thank You RobertF

Yes! The MCZ3001D on the A-board can very well be the cause. As we are all finding out it is a faulty IC (High failure rate), the replacement is MCZ3001DB...
I would ask him to try replacing that one first, before giving up on it


Good luck with it Hope everything goes well, bldrnr.
Also, You weren't really clear (I think) with the blinks.... Does it blink 5 times after it turns off on you? And do be sure it repeats, it should repeat endlessly (or until you turn off via remote/power button or is unplugged). It will blink when you turn it on, it is just indicating it is on but is warming up and degaussing the tube.

Mark Goetz

You have Sony that wont power on and standby light blinks Help and suggesti

I forgot how the cables were connected in the inside

any one has pictures of where the connectors and cables goes?

thanks

quetzalandia

You have Sony that wont power on and standby light blinks Help and suggesti

Well, that was fun. I just had a tv repairman come by to look at my set. Apparently, the D-board wasn't seated properly, so a hairline crack was causing the problems with the picture not showing up. Now, I did try to take the board out a few weeks ago, so it's possible I cracked it when trying (and failing) to remove the board. On the other hand, I couldn't even get the TV to turn on anymore even before that point, and once he tapped on the board while the TV was on, the picture would show up, so it's possible that the ICs didn't go bad, or maybe they went bad at the same time the stress fracture started causing problems with the board. Someone had definetly opened that set up before I bought it, as the cabinet was missing a bunch of screws. Anyway, it'll take 3-4 weeks for them to send the board out to get repaired and back in my set

Shadowknight

You have Sony that wont power on and standby light blinks Help and suggesti

Shadowknight, Sorry to hear that, thats a first for me Did you move it recently?

quetzalandia, Which cables? All of them or just the d-board cables/connectors?

Mark Goetz

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by Mark Goetz
Shadowknight, Sorry to hear that, thats a first for me Did you move it recently?
Nope. Really, it worked fine for 3-4 months after I bought it in December, but the repair guy said that if there was a stress crack from someone messing with the TV before I bought it, it may have just taken months for the damage to hit a critical point where it wouldn't power on anymore. I know someone had messed with it before due to all the missing screws that's supposed to hold the plastic cover to the frame around the tube.

I guess the moral of the story is to avoid pawn shops like the plague when it comes to buying a TV.

Shadowknight

You have Sony that wont power on and standby light blinks Help and suggesti

In reply to my May 23 post on the Sony 36xbr800, I got sick of messing with the 3 blinker and took my chassis to a local repair shop. It cost me 150.00, got it back in less than a week, put it back in the tv in about 15 minutes, reconnected the two cut wires I cut on the Flyback, and it fired right up. So im out about 180 counting the parts I had ordered when I tried to fix it myself the first time. I guess the solder connections were bad and it needed two new resistors also. If this tv didnt have such a great picture for Halo 2 and 3, and Call of Duty 4 I would have junked it, or sold it to one of you guys, LOL.
Thanks for the help though.

If HD CRT's have a better picture than LCD's why did they become extinct? I was thinking the weight issues of CRT's and the desire to hang 'em on the wall. Any other ideas?

Scuff

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by Scuff
In reply to my May 23 post on the Sony 36xbr800, I got sick of messing with the 3 blinker and took my chassis to a local repair shop. It cost me 150.00, got it back in less than a week, put it back in the tv in about 15 minutes, reconnected the two cut wires I cut on the Flyback, and it fired right up. So im out about 180 counting the parts I had ordered when I tried to fix it myself the first time. I guess the solder connections were bad and it needed two new resistors also. If this tv didnt have such a great picture for Halo 2 and 3, and Call of Duty 4 I would have junked it, or sold it to one of you guys, LOL.
Thanks for the help though.

If HD CRT's have a better picture than LCD's why did they become extinct? I was thinking the weight issues of CRT's and the desire to hang 'em on the wall. Any other ideas?
$150 is pretty reasonable for a successful repair. Congratulations on that.

I think screen size is the big driver behind the success of the new displays. CRTs maxed out at about 40" while plasmas, LCDs, DLPs can be much larger.

RobertF

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by Mark Goetz
Shadowknight, Sorry to hear that, thats a first for me Did you move it recently?

quetzalandia, Which cables? All of them or just the d-board cables/connectors?
Yo Mark,
Quetzalandia emailed me for other pics of my repair and he last emailed stating that he was able to fix his set! I think it's so cool. You helped me, which helped him, etc...The beat goes on! Another TV ripped from the clutches of the landfill
-Dave

eclipsedave

You have Sony that wont power on and standby light blinks Help and suggesti

Hi guys, I have a KV-HR32M31 76cm CRT (I think it's the same as the XBR910) that decided to go on the blink the other day. My wife was playing an Xbox game and then turned it off as normal, when I went to turn it back on again in a couple of hours, the green LED would blink 10 times, I could hear the station (I wanted to watch TV) and then it turned itself off and then showed 10 red blinks. So it was first 10 green, then 10 red.

When I left it unplugged overnight, it turned on the next morning perfectly. If I turn it off with the remote it won't turn on again in a few hours. Now if I turn it off with the main switch, it does come on again even with the power plug left plugged into the mains.

I've got part of the service manual here which basically only covers the service menu codes, but it does show that 10 blinks could be either the FBT (hope to God it's not that), IC8002 (which is the MCZ3001DB) or two transistors Q8013, 8014 which are both the same K2842.

I've gone over the D board resoldering any possible dry solder joints on these components but it didn't seem to have helped.

I've ordered two replacement MCZ3001DB's and two K2842's from Sony Aust and they'll be here next week. I'm confident that the IC is the fault after reading many posts about these chips failing.

I used to fix TV's so this repair should be a no-brainer

Any other things that could possibly cause this problem?

Dreamcazman

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by RobertF
- Purchase of a D-Board repair kit from fixyourownTV.com
But I wasn't sure that my D-board was causing the problem. (The repair kit was about $100.)

- Send my D-Board to tristatemodule.com for repair
But, again, I wasn't sure the D-Board was the problem. A D-Board repair would have run about $150 plus shipping both ways. The customer service representative from Tristate suggested that I send in all of the boards to maximize the chances for finding the problem.

- Purchase a replacement D-Board through Sony's exchange program
Again, I wasn't sure the D-Board was the problem and the $243 board replacement cost was pretty steep.
Yeah, like I said, Sears claims to have the entire D-Board in stock for less than $200 so if I can figure out how to remove it I may go that route. I'm tempted to try soldering it, but frankly I live in a condo and that behemoth of a set in a non-functioning state is going to be a constant PITA until it's repaired or replaced so my patience is limited. I will look at the other thread to see if I can figure out how to remove the D-Board and how the slide out assembly works. I build my own computers so replacing a board doesn't scare me as much as resoldering chips.

I read that unplugging the red flyback cable from the tube itself is possible but if I replace the entire D-Board I guess I'll need a new cable unless the kit comes with it.

Thanks for all your advice.

johnc_22

You have Sony that wont power on and standby light blinks Help and suggesti

Hello,

Firstly, great contributions from all--this is what makes the internet a powerful tool! It's nice to see so many like-minded individuals who avoid throwing things away.

My Sony KB-36XBR400 is now an adolescent "with issues." My questions involve making sure that I understand what the TV is telling me.

Scenario: The set is off and NOT on standby. When turning-on the set using the power button on the set, the light comes-on and blinks 6 and one half times before staying on--that is there are no repeating blink patterns. I assume the staying-on state of the light after the blinking sequence is the set going to standby mode. There is no sound and no picture.

Anyone know what this means? After reading this thread, it appears that these trouble lights appear for folks in a repeating pattern. Mine are not repeating.

Another question that I have involves the degaussing sound "bwump" that is heard when powering-up. Mine was doing that while experiencing the above scenario but now is no longer doing even that. I now only hear some clicks when attempting to power-on. Does this mean more bad things have developed beyond the original problem?

I should also mention that originally, the set would sometimes not power on so I started leaving it on and just interrupting the cable feed when not in use (effectively keeping the set on). This worked for months until the set conked-out completely. Then I could turn it on (no picture, no sound) and hear the bwump sound and get the 6.5 flashes and then steady light. Now I get no bwump and the 6.5 flashes before the steady light.

Just trying to understand what the set is "telling me" prior to delving into chip replacement or board swapping. I'm in graduate school and can't afford to replace the set or have someone else fix it. Plus, I hate throwing things away and pride myself on fixing that which most would throw away. In fact, I got this set for a couple of hundred bucks and like the idea of keeping it going. I haven't seen much that equals the PQ.

Advice? I do have some Sears gift certificates that would make replacement boards practical if the set is worth throwing money at it.

Thanks up front! Great thread of knowledge here.

email4eric

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by lcaillo
It depends. You can't really discuss making these kinds of decisions intelliently without the specifics of the situation and the sets to compare.

I charge $30 - 50 for an estimate, BTW. It will vary by market and servicer, so the only way to make a good decision, is once again, to get the specifics. Many 12 year old sets would be a better choice than many 3 year old sets and vice versa.
That estimate fee is more reasonable for sure but what do you charge for a tube recondition? I still stand by my it is cheaper to find a good comparable used Sony set, especially one that has greater capabilities. It is relatively trivial to find a HDTV capable Sony in the $200-300 range these days on CL. Regular NTSC sets are much cheaper I sold my circa 1997 Sony 27" (a midline V-series) on CL for $45 for example. It worked perfectly and was lightly used (we watched one hour of TV a day max on it). There is risk to buying used but is overblown in my opinion. I and several folks I know have purchased many, many electronics items used from Ebay, government surplus organizations and CLs and they have nearly all worked out just fine. To each their own but my by experience is to buy used as it is almost always invariably cheaper than repair for electronics that depreciate a lot like CRT TV and computer monitors.

If we were talking a more high-end set then I would agree get an estimate but for a set that can be replaced for the price of an estimate or nearly so I just don't see it. Why even with your reasonable estimate fee why pay 30-50% the worth of the worth of a set if it was in prefect working condition to find out whether it can be fixed or not. It makes no economic sense. The used price of these sets just does not make them worth repairing I am sorry that is based on watching craigslist for 6 different metro areas and buying and selling two used CRTs in the last 4 months.

secstate

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by johnc_22
Just checking.

Have I got the board in question correct (see picture)?
Yes, facing the back of the TV, the D-Board is the large board on the left. One good visual cue is the the D-Board has the FBT (Flyback Transformer) which is the large component with the two red wires running to it.

On removing the D-Board, some have actually been able to replace the ICs with the D-Board in place.

Another option is to remove the entire lower chassis assembly, which holds the D-Board and the large adjacent A-Board. That's the method that I used. The chassis is actually designed to slide out for easy servicing. Once the chassis is out, accessing the two MCZ3001D ICs is relatively easy. Like removing the D-Board alone, you will need to disconnect a number of connectors. Most of these are very easy to undo but the two wires that run to the Flyback can sometimes be difficult to remove.

If you do remove the D-Board or the chassis, take some time to label all of the connectors. That will save you a lot of time when you reinstall the board.

On the repair itself, if you're not comfortable with the soldering required, you can send the D-Board off for repair to an outfit like TriStateModule.com:

http://tristatemodule.com/

Perhaps you could find a local technician that would install the ICs for you for a fixed fee. (Get an agreement on the fee before the repair is started.)

Another option is to see if Sony has a replacement D-Board available. If they don't have new stock available, they sometimes offer replacements through an exchange program. See this link:

http://servicesales.sel.sony.com/eco.../web/index.jsp

Here are the repair options that I considered before attempting a repair myself:

- Purchase of a D-Board repair kit from fixyourownTV.com
But I wasn't sure that my D-board was causing the problem. (The repair kit was about $100.)

- Send my D-Board to tristatemodule.com for repair
But, again, I wasn't sure the D-Board was the problem. A D-Board repair would have run about $150 plus shipping both ways. The customer service representative from Tristate suggested that I send in all of the boards to maximize the chances for finding the problem.

- Purchase a replacement D-Board through Sony's exchange program
Again, I wasn't sure the D-Board was the problem and the $243 board replacement cost was pretty steep.

- Pay for local repair by an authorized Sony service center
But the estimated $400 cost was more than the cost of a used replacement of the same exact model.

For more details, see my posts as "BobF" in this Agoraquest thread:

http://agoraquest.com/viewtopic.php?..._page_number=6

Note that I wasn't sure that my D-Board was even the problem. There are other possible causes for a power on problem that don't involve the D-Board. The diagnostic codes just provide a likely cause for the problem. Keep that in mind before you spend oo much on a D-Board repair.

Good Luck!

Bob

RobertF

You have Sony that wont power on and standby light blinks Help and suggesti

Just checking.

Have I got the board in question correct (see picture)?


I can see the two chips people are replacing - too bad they're not already socketed as my decision of what to do would be easy.

Removing this board does not look like a simple task (to me). I see probably about 9 screws, some of which I'm not sure I have the right tools to get to. I also see a few clips connecting this board to a similar board on the right side of the bottom of the set and assume these must be removed somehow. Then there are a variety of cables that must be removed. Is it easier than it looks?

Sears claims to have this board in stock for a not unreasonable price:
http://www.searspartsdirect.com/part...b%20Components

It's item #30:
http://www.searspartsdirect.com/part...%20Part%20List

Thanks again for all the great knowledge around here.

johnc_22

You have Sony that wont power on and standby light blinks Help and suggesti

I have an KD34XS955 that's about 3.5 years old and just this morning started exhibiting the 6-blink issue. I had the 3 year ext warranty but . . . obviously I am now SOL. I'm kind of bummed I had a 14" Sony TV that outlasted my desire to keep it (19 years) and a Mitsu tube that's over 10 years old and still used daily in my bedroom, and now a really expensive Sony that's dead so quickly.

I know the repair seems simple for those familiar with soldering at the IC level but I'm a software guy, not a hardware guy . . .

Due to the size and weight of this set, and despite the great picture, I've kind of regretted purchasing it as prices on CRTs dropped precipitously after I bought it, and DLPs and LCDs got cheaper and better. I may try to have it repaired but if someone in the Atlanta area wants it and and wants to deal with the repair, PM me. Or, if you know and excellent repair service in Atlanta familiar with this issue, that would be great as well. I can probably pull the D board myself but I'm not sure I want to tackle the soldering myself.

Thanks for the great info in this thread.

johnc_22

You have Sony that wont power on and standby light blinks Help and suggesti

It depends. You can't really discuss making these kinds of decisions intelliently without the specifics of the situation and the sets to compare.

I charge $30 - 50 for an estimate, BTW. It will vary by market and servicer, so the only way to make a good decision, is once again, to get the specifics. Many 12 year old sets would be a better choice than many 3 year old sets and vice versa.

lcaillo

You have Sony that wont power on and standby light blinks Help and suggesti

The Sony tv that died on me is a KV-32S20 (crt) manufactured in 1996. I called a couple shops and pretty much I'd be looking at shelling out $75 minimum with no guarantee it'd be fixed. I did a quick perusal of my local Craiglist listings and could find at least half a dozen Sony WEGA XBR 32" - 36" models between $200 - $300 manufactured in the past 4 - 6 years all in "excellent" to "minty" condition (various seller's words). I even found 2 40" XBR800's under $400 (which is the same model I have in my living room - outstanding crt, btw). This is just the tv for the bedroom so I'm probably just going to buy one of the used WEGAs I can find locally. I had considered just going for a 40" - 42" Panasonic Plasma but I really can't see spending the money for a 2nd tv.

Partyslammer

You have Sony that wont power on and standby light blinks Help and suggesti

Sony does not make CRTs at all any more. Your set likely has a CRT that is getting weak and the set is in IK blanking. It is sometimes possible to restore the CRT and get some additional life out of it, but this also does not work on some CRTs. Find a servicer who has a Sencore CR70 or CR7000 CRT restorer and knows how to use it if you want to try to get some more service out of the set.

lcaillo

You have Sony that wont power on and standby light blinks Help and suggesti

I concur with lcaillo and have had a friend and a brother who both had Sony TVs that suffered the weak tube issue and it was just as you describe. For what you will pay a professional to look at the set you could probably replace it with a better used CRT from Craigslist.

secstate

You have Sony that wont power on and standby light blinks Help and suggesti

I hear this assumption all the time. It may or may not be true, but you never know until you check it out. Call around to the servicers in your area. Compare what you can find used. It may be viable to have it checked out. At least you know what you've got. Buying used can be a gamble just like fixing something. Many of the shops you call may have used sets that they have repaired for sale. These are often much better choices than a complete unknown from a garage sale or Craigs list.

lcaillo

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by lcaillo
I hear this assumption all the time. It may or may not be true, but you never know until you check it out. Call around to the servicers in your area. Compare what you can find used. It may be viable to have it checked out. At least you know what you've got. Buying used can be a gamble just like fixing something. Many of the shops you call may have used sets that they have repaired for sale. These are often much better choices than a complete unknown from a garage sale or Craigs list.
It isn't an assumption in the DC area from my experience but of course YMMV. My brother called three different repairs shops a year ago and they all wanted $75-150 up front before they would even look at the set and this was if he brought it in. If he decided to repair the set that money would be credited to the reapir, if not he was out that money. It appeared at least in DC at least that too many people wouldn't get their sets repaired after getting a free estimate to make it worth the TV repair person's while to do that anymore. He ended up getting a much newer 27" set on CL for less than $100 and is very happy.

Honestly I feel you are taking more of a gamble on a 12 year old set than purchasing a newer used one from CL. If the set was newer I might agree but 12 years is a good life for a set. Maybe if you get a free estimate on repair it is worth checking out but otherwise unless the estimate fee is $50 or less I would just look for a used set from whatever source you are most comfortable with.

secstate

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by RobertF
lcaillo,

Thank you very much for the helpful information.

Bob


SPECIAL THANKS to ROBERTF!!!!!!!!!!!
He has be on top of this thread more then me and it is much appreciated

Mark Goetz

You have Sony that wont power on and standby light blinks Help and suggesti

Although this is an older nearly 12 year old standard tv, it's been a good tv since day 'til..........tonight. My wife was watching it and accidently hit the remote turning it off. She turned it back on and there's no picture, just sound and the little red (standby?) light at the bottom right just blinks off and on, no rythme, never stops as long as the power's on. The sound is unaffected, I just get no picture no matter how I have it connected to the outside video source. I figure the tv's done, but before I recycle it, I figure it's worth asking around if there's a possible easy fix.

And in the case I need to shop for a new tv in the 34" range, I'd prefer getting a new Sony Wega CRT type monitor despite the size and weight. Anyone know if Sony (or anyone) still puts out CRTs in that size?

Thanks,

T.B.

Partyslammer

You have Sony that wont power on and standby light blinks Help and suggesti

lcaillo,

Thank you very much for the helpful information.

Bob

RobertF

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by lcaillo
Aack! Do not use sockets. They eventually lead to problems with poor connections unless they are extremely well made and identical in material to the pins on the ICs. You will not damage an IC by soldering it in. Long before you damage a chip you will damage the traces on the board. If you can get the old IC out without damage to the pc board, you will be able to solder it in with no problem.
I used them too, with no problems.
As Robert said " But I have seen many reports of the ICs themselves failing. I'd rather take a risk that the the IC itself would fail before a connection problem developed with the socket. In that event, replacing an IC that's installed in a socket is a snap."
Still is a personal preference, I guess....

Good Luck!! with your repair 'lcaillo'. And keep practicing 'the juggernaut', as robert suggest to find an old pc board to practice on, or you can go to Radio Shack and buy a board and a cheap IC (I don't think paper clips would be very good to practice on As they aren't the same as soldering on a pc board or the IC).

'spiff23542' and 'Dreamcazman' Congrats on another successful repair.


Everyone is welcome That ,of course, was the purpose for this thread. I am very happy to see it is helping people (not everyone, but can't be ideal for all).

Mark Goetz

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by RobertF
Thanks for listing the Hitachi part number for the MCZ3001DB.

You also wrote that the "DB" version is an "updated" part. Do you know how exactly it has been updated? I've seen speculation that the update addresses the reliability issue with the original "D" variant but I've never been able to find any hard information on that.

And the ICs are very expensive if you buy them through Sony. But you can buy the both the "MCZ3001D" and "MCZ3001DB" ICs for $6 or less each through other online sources such as eBay. I bought five MCZ3001D ICs through eBay and the price was about $4.50 each with shipping. I still have three spares left over after my repair.

On the use of sockets, I've had no issues since I installed two of them in my KV-36XBR400 in 2006. My TV contiues to work perfectly. And I used inexpensive 18 pin sockets that I purchased at my local Fry's for less than $1.00 for a pair.

And I haven't seen any other "poor connection" problem reports from anyone that has successfully repaired their TVs with sockets. I'm not suggesting that such problems can't happen but I just haven't seen any reports of that.

But I have seen many reports of the ICs themselves failing. I'd rather take a risk that the the IC itself would fail before a connection problem developed with the socket. In that event, replacing an IC that's installed in a socket is a snap.

So if I did it all over again today, I would still use sockets.
I do not know what the change was in the "B" version, but I can tell you that we had several repeat failures on early sets fixed with the parts from Sony that were not the newer version. We have had no recalls since we started using the "B" version chips.

You may never have a problem with the sockets. They are generally a bad idea, based on years of experience with electronics repairs. My concern with the sockets is that you may end up with failure modes that induce not only IC failures but failures in the FETs that they drive. It just is not that big of a deal to install them properly.

Buying parts from Ebay is a bad idea. It is the first place that the cheap copies of popular parts begin to show up. Stick with the reputable vendors that are careful about the sources of their parts. Use B&D, ACME, Andrews, Tritronics (but not the TT- versions), Union, Excel, and other reputable vendors. The potential savings is simply not worth the risk, as repair techs have discovered many times.

lcaillo

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by lcaillo
The MCZ3001DB is available under a Hitachi part number (CP08451U) for far less than the Sony supplied part. They are identical parts from the same OEM. In fact, for a while, you cold get the updated DB version from Hitachi while Sony was still supplying the D version. It is also available under other part numbers, but one should make sure that it is an OEM part not a cheap copy. I have not heard of counterfeits on this chip yet, but it is inevitable on such a popular part.
Thanks for the reply. I didn't know who else I could get the parts quickly from here in Australia. They weren't cheap but I needed it up an running ASAP. If it was a spare TV I would've gotten some off eBay, but that Hitachi number is a good one to remember. Thanks

Dreamcazman

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by lcaillo
The MCZ3001DB is available under a Hitachi part number (CP08451U) for far less than the Sony supplied part. They are identical parts from the same OEM. In fact, for a while, you cold get the updated DB version from Hitachi while Sony was still supplying the D version. It is also available under other part numbers, but one should make sure that it is an OEM part not a cheap copy. I have not heard of counterfeits on this chip yet, but it is inevitable on such a popular part.
Thanks for listing the Hitachi part number for the MCZ3001DB.

You also wrote that the "DB" version is an "updated" part. Do you know how exactly it has been updated? I've seen speculation that the update addresses the reliability issue with the original "D" variant but I've never been able to find any hard information on that.

And the ICs are very expensive if you buy them through Sony. But you can buy the both the "MCZ3001D" and "MCZ3001DB" ICs for $6 or less each through other online sources such as eBay. I bought five MCZ3001D ICs through eBay and the price was about $4.50 each with shipping. I still have three spares left over after my repair.

On the use of sockets, I've had no issues since I installed two of them in my KV-36XBR400 in 2006. My TV contiues to work perfectly. And I used inexpensive 18 pin sockets that I purchased at my local Fry's for less than $1.00 for a pair.

And I haven't seen any other "poor connection" problem reports from anyone that has successfully repaired their TVs with sockets. I'm not suggesting that such problems can't happen but I just haven't seen any reports of that.

But I have seen many reports of the ICs themselves failing. I'd rather take a risk that the the IC itself would fail before a connection problem developed with the socket. In that event, replacing an IC that's installed in a socket is a snap.

So if I did it all over again today, I would still use sockets.

RobertF

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by Dreamcazman
Hi guys, I have a KV-HR32M31 76cm CRT (I think it's the same as the XBR910) that decided to go on the blink the other day. My wife was playing an Xbox game and then turned it off as normal, when I went to turn it back on again in a couple of hours, the green LED would blink 10 times, I could hear the station (I wanted to watch TV) and then it turned itself off and then showed 10 red blinks. So it was first 10 green, then 10 red.

When I left it unplugged overnight, it turned on the next morning perfectly. If I turn it off with the remote it won't turn on again in a few hours. Now if I turn it off with the main switch, it does come on again even with the power plug left plugged into the mains.

I've got part of the service manual here which basically only covers the service menu codes, but it does show that 10 blinks could be either the FBT (hope to God it's not that), IC8002 (which is the MCZ3001DB) or two transistors Q8013, 8014 which are both the same K2842.

I've gone over the D board resoldering any possible dry solder joints on these components but it didn't seem to have helped.

I've ordered two replacement MCZ3001DB's and two K2842's from Sony Aust and they'll be here next week. I'm confident that the IC is the fault after reading many posts about these chips failing.

I used to fix TV's so this repair should be a no-brainer

Any other things that could possibly cause this problem?
The MCZ3001DB is available under a Hitachi part number (CP08451U) for far less than the Sony supplied part. They are identical parts from the same OEM. In fact, for a while, you cold get the updated DB version from Hitachi while Sony was still supplying the D version. It is also available under other part numbers, but one should make sure that it is an OEM part not a cheap copy. I have not heard of counterfeits on this chip yet, but it is inevitable on such a popular part.

lcaillo

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by Shadowknight
To be on the safe side, pick up some 18-pin sockets from Radio Shack. That way, you don't have to worry about damaging the new ICs while soldering, and it'll make it a lot easier to replace them in the future.
Aack! Do not use sockets. They eventually lead to problems with poor connections unless they are extremely well made and identical in material to the pins on the ICs. You will not damage an IC by soldering it in. Long before you damage a chip you will damage the traces on the board. If you can get the old IC out without damage to the pc board, you will be able to solder it in with no problem.

lcaillo

You have Sony that wont power on and standby light blinks Help and suggesti

I'm not sure what I ever did without the internet. Thanks to all for starting and keeping this wonderful thread alive. I have been struggling with my KD34XBR960 for the last year and a half with it refusing to turn on from time to time. Unplugging power for a few seconds and plugging it back in has been my reasonable course of action but it has been getting progressively worse. Now it won't come on at all... 6 blinks now taunt me. I have placed my order for four MCZ3001D chips and will be stopping by Radio Shack on the way home to pick up a few parts in preparation for repair. I will give you guys a heads up, hopefully next week, with the status of my repairs.

-kb

spiff23542

You have Sony that wont power on and standby light blinks Help and suggesti

Dreamcazman,

Congratulations on your successful repair!

And best of luck to spiff23542 on your repair!

If you haven't done a lot of soldering, also check out the soldering tips I posted here:

http://www.agoraquest.com/viewtopic...._page_number=7

Bob

RobertF

You have Sony that wont power on and standby light blinks Help and suggesti

My mother's XBR went out. First it was six blinks, now seven. I ordered the parts (chips and sockets) and supplies (15w soldering iron, soldapullt, solder, chip puller, etc.), but have never soldered. Started practicing with paper clips last night and don't feel that my skills are up to the task. Any suggestions?

the juggernaut

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by the juggernaut
My mother's XBR went out. First it was six blinks, now seven. I ordered the parts (chips and sockets) and supplies (15w soldering iron, soldapullt, solder, chip puller, etc.), but have never soldered. Started practicing with paper clips last night and don't feel that my skills are up to the task. Any suggestions?
See my post directly above yours for a link to some soldering tips that I posted over on Agoraquest under my "BobF" user ID. See also the pinball repair soldering tips link that I provided in that same post:

http://www.pinrepair.com/begin/

One excellent way to improve your skills is to practice soldering and de-soldering ICs on an old circuit board. Pay particular attention de-soldering as many find that removing old components is more challenging than installing new ones. I know that I did.

And read the excellent tips in this thread also!

Bob

RobertF

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by Dreamcazman
That's exactly what I'm going to do

Just for the record. The TV won't turn on at all now, even when it was switched off.

I've already got the sockets (I bought spares) so while I'm waiting for the IC's to turn up, I might go ahead and remove the old ones and install the socket so I can simply plug the new IC in when it arrives and fingers crossed
Good luck with the repair, hope it is the problem (most likely, but never know). Although, not sure about the 10 blinks, but could be, I don't know about 910 sets.

Mark Goetz

You have Sony that wont power on and standby light blinks Help and suggesti

Just thought I'd let you guys know how the repair went. I got my stuff today and replaced both transistors and the IC8002 and now it's working like a charm! I'm stoked!

I've still got the back off it to make sure it's all good, but I've restarted it once or twice since the repair and everything seems fine.

I'd say it was the IC all along though I'm not 100% sure. Seeing as the transistors could cause this problem too I'd thought I might as well replace them as this TV is our main lounge room set and I had to get it up and running ASAP. If I didn't replace them, more than likely they would've been the cause. You know how it is - Murphy's law.

Thanks for all the help!

Dreamcazman

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by Shadowknight
To be on the safe side, pick up some 18-pin sockets from Radio Shack. That way, you don't have to worry about damaging the new ICs while soldering, and it'll make it a lot easier to replace them in the future.
That's exactly what I'm going to do

Just for the record. The TV won't turn on at all now, even when it was switched off.

I've already got the sockets (I bought spares) so while I'm waiting for the IC's to turn up, I might go ahead and remove the old ones and install the socket so I can simply plug the new IC in when it arrives and fingers crossed

Dreamcazman

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by eclipsedave
Yo Mark,
Quetzalandia emailed me for other pics of my repair and he last emailed stating that he was able to fix his set! I think it's so cool. You helped me, which helped him, etc...The beat goes on! Another TV ripped from the clutches of the landfill
-Dave
That is cool dave . I and many others on here are glade to be of service .

Your welcome and thanks to everyone here

Mark Goetz

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by Dreamcazman
Hi guys, I have a KV-HR32M31 76cm CRT (I think it's the same as the XBR910) that decided to go on the blink the other day. My wife was playing an Xbox game and then turned it off as normal, when I went to turn it back on again in a couple of hours, the green LED would blink 10 times, I could hear the station (I wanted to watch TV) and then it turned itself off and then showed 10 red blinks. So it was first 10 green, then 10 red.

When I left it unplugged overnight, it turned on the next morning perfectly. If I turn it off with the remote it won't turn on again in a few hours. Now if I turn it off with the main switch, it does come on again even with the power plug left plugged into the mains.

I've got part of the service manual here which basically only covers the service menu codes, but it does show that 10 blinks could be either the FBT (hope to God it's not that), IC8002 (which is the MCZ3001DB) or two transistors Q8013, 8014 which are both the same K2842.

I've gone over the D board resoldering any possible dry solder joints on these components but it didn't seem to have helped.

I've ordered two replacement MCZ3001DB's and two K2842's from Sony Aust and they'll be here next week. I'm confident that the IC is the fault after reading many posts about these chips failing.

I used to fix TV's so this repair should be a no-brainer

Any other things that could possibly cause this problem?
To be on the safe side, pick up some 18-pin sockets from Radio Shack. That way, you don't have to worry about damaging the new ICs while soldering, and it'll make it a lot easier to replace them in the future.

Shadowknight

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by johnc_22
Yeah, like I said, Sears claims to have the entire D-Board in stock for less than $200 so if I can figure out how to remove it I may go that route. I'm tempted to try soldering it, but frankly I live in a condo and that behemoth of a set in a non-functioning state is going to be a constant PITA until it's repaired or replaced so my patience is limited. I will look at the other thread to see if I can figure out how to remove the D-Board and how the slide out assembly works. I build my own computers so replacing a board doesn't scare me as much as resoldering chips.

I read that unplugging the red flyback cable from the tube itself is possible but if I replace the entire D-Board I guess I'll need a new cable unless the kit comes with it.

Thanks for all your advice.
Replacing the D-Board is much like replacing a motherboard in a PC. In fact, it's a bit easier since you don't have to remove and replace things like memory and video and sound cards.

On the red flyback wires, some have been able to just pull them out of the flyback. I couldn't quite bring myself to apply the amount of force needed for that as I was concerned that I would break off something inside the flyback. But that might work for you.

In my case, I disconnected the thicker red wire at the other end where the anode cap is mounted on top of the CRT. And I ended up cutting the other, thinner, red wire that runs up to the yoke mounted C-Board. I then spliced that back together after replacing the ICs.

RobertF

You have Sony that wont power on and standby light blinks Help and suggesti

If anyone's interested, the easiest way I found to access the MDZ IC's was to slide the plastic chassis out a bit so I could access the screws holding the D-board down, unscrewed them and unplugged all the clips and connectors. I couldn't go wrong as all the connectors on my set had different pin counts and it was impossible for me to plug a connector into the wrong place.

I unscrewed the small triangular audio board on the side and moved it so it wasn't in the way then gently picked the D-board up, slid it out the side and stood it on it's end with the FBT leads still attached. You can then access the underside of the board easily.

If I could fix the TV without having to unplug the FBT connector on the back of the tube then all the better. I've heard you can damage things if it isn't done properly plus I haven't done it in years and didn't want to risk anything.

Dreamcazman

You have Sony that wont power on and standby light blinks Help and suggesti

I just had a couple of guys from a local Atlanta repair shop come over for $50. Everyone else wanted $95 just to come over and "look". They showed me how to take the board out, verified that everything was discharged, and said "fix it yourself". So, I'm getting ready to get the replacement board from Sears. I'll be in trouble if their site is lying about the availability of the part because I'll probably have to pull the board and then see about getting it repaired which will cost a similar amount. The new D-Board is a safer bet to fix any underlying problem causing the ICs to fail (if that in fact is what has failed). This was $50 well spent because I now feel much better about DIYing a new board.

Thanks for all the help and advice. I will report back as this progresses. Of course if the new board gets the tv set working I will then feel better about going at the old one with a soldering iron to see if I can possibly repair it for about 2-3 years from now when it craps out again.

johnc_22

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by email4eric
Hello,

Firstly, great contributions from all--this is what makes the internet a powerful tool! It's nice to see so many like-minded individuals who avoid throwing things away.

My Sony KB-36XBR400 is now an adolescent "with issues." My questions involve making sure that I understand what the TV is telling me.

Scenario: The set is off and NOT on standby. When turning-on the set using the power button on the set, the light comes-on and blinks 6 and one half times before staying on--that is there are no repeating blink patterns. I assume the staying-on state of the light after the blinking sequence is the set going to standby mode. There is no sound and no picture.

Anyone know what this means? After reading this thread, it appears that these trouble lights appear for folks in a repeating pattern. Mine are not repeating.

Another question that I have involves the degaussing sound "bwump" that is heard when powering-up. Mine was doing that while experiencing the above scenario but now is no longer doing even that. I now only hear some clicks when attempting to power-on. Does this mean more bad things have developed beyond the original problem?

I should also mention that originally, the set would sometimes not power on so I started leaving it on and just interrupting the cable feed when not in use (effectively keeping the set on). This worked for months until the set conked-out completely. Then I could turn it on (no picture, no sound) and hear the bwump sound and get the 6.5 flashes and then steady light. Now I get no bwump and the 6.5 flashes before the steady light.

Just trying to understand what the set is "telling me" prior to delving into chip replacement or board swapping. I'm in graduate school and can't afford to replace the set or have someone else fix it. Plus, I hate throwing things away and pride myself on fixing that which most would throw away. In fact, I got this set for a couple of hundred bucks and like the idea of keeping it going. I haven't seen much that equals the PQ.

Advice? I do have some Sears gift certificates that would make replacement boards practical if the set is worth throwing money at it.

Thanks up front! Great thread of knowledge here.

My first and most important question is....
When the TV is powering up, you say you hear the deguassing and the light blinks then, correct??
This happens on mine every time I turn it on (didn't notice before simply because I never paid attention. lol), but is normal. The trouble blinks should occur after that process. And should repeat from then on or until you turn off or unplug.
Second question...
Have you tried to unplug overnight and see what it does the next day? This has sometimes temporally fixed problem, but is by no means a permanent fix .

I hope this helps
Good Luck


PS: As for secstate problem. I agree with buying a newer version from CL or Ebay (personal preference). As it is true you have to trust the seller, but would be a better bargain then fixing a 12 year old TV. To each their own.

Mark Goetz

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by johnc_22
I just had a couple of guys from a local Atlanta repair shop come over for $50. Everyone else wanted $95 just to come over and "look". They showed me how to take the board out, verified that everything was discharged, and said "fix it yourself". So, I'm getting ready to get the replacement board from Sears. I'll be in trouble if their site is lying about the availability of the part because I'll probably have to pull the board and then see about getting it repaired which will cost a similar amount. The new D-Board is a safer bet to fix any underlying problem causing the ICs to fail (if that in fact is what has failed). This was $50 well spent because I now feel much better about DIYing a new board.

Thanks for all the help and advice. I will report back as this progresses. Of course if the new board gets the tv set working I will then feel better about going at the old one with a soldering iron to see if I can possibly repair it for about 2-3 years from now when it craps out again.
Good luck with the replacement D-Board order through Sears! Hopefully their inventory system is up to date for your particular D-Board. Earlier in this thread another forum member ordered an XBR700 D-Board from Sears but they credited him when it turned out to be out of stock.

RobertF

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by Mark Goetz
My first and most important question is....
When the TV is powering up, you say you hear the deguassing and the light blinks then, correct??
This happens on mine every time I turn it on (didn't notice before simply because I never paid attention. lol), but is normal. The trouble blinks should occur after that process. And should repeat from then on or until you turn off or unplug.
Second question...
Have you tried to unplug overnight and see what it does the next day? This has sometimes temporally fixed problem, but is by no means a permanent fix .

I hope this helps
Good Luck


PS: As for secstate problem. I agree with buying a newer version from CL or Ebay (personal preference). As it is true you have to trust the seller, but would be a better bargain then fixing a 12 year old TV. To each their own.
Well...no--I no longer have any degaussing sound. Also, my flashing light goes through one cycle and then either stays on solid or goes out. The fact that it isn't repeating is what I'm trying to figure-out. What does that mean? Does anyone know what the fact that it no longer degausses means?

I have indeed tried the leave-it-unplugged-overnight approach to no avail. When pressing the power on button, I simply get a coupld of clicks with 6.5 blinks of the light. The the light stays on if I'm powering up manually and turns off if I'm using the remote.

Just trying to figure-out if this is the usual D board problem or something worse. Thankfully, there are about 15 of these used on CL for a couple of hundred. Just a PITA to move and dispose of...

Thanks!

email4eric

You have Sony that wont power on and standby light blinks Help and suggesti

Hello,

I have already replaced both IC's to no avail. The tv show similar symptoms where I turn it on, the screen has a blue hue then blooms to full blue screen then shuts off. This is followed by the 7 blink code. Any ideas before I chuck this beauty?

Ricanmeng

You have Sony that wont power on and standby light blinks Help and suggesti

hmmmmm

I was thinking a fuse, but don't think it would come on at all?????
I did read somewhere else, someone had a similar problem. Although I can't seem to remember where and what the fix was (sorry! old age lol)....
As soon as it comes to me I will post.

The 6.5 flashes are not a code, it will flash fully 6 or 7 times (2-7 flashes are code. and will flash repeatedly with a 3sec. pause between the code flashes and will give 1 code at a time, until fixed that is, if more then 1 problem).

I believe the problem is on the d-board (could be wrong though). I believe it has to do with the high voltage/fly-back transformer. But don't take my word for it ... If you can get one off CL (same model or very similar). Then it may be worth hanging onto for spare parts (if you got room to keep it).


Good Luck with it or in your search for replacement. Sorry, couldn't be more help. And sometimes it just isn't worth it (for the fact that unless you can find a repair tech to look at and/or fix for a good price. I say it may not be worth the guess that any certain part or board could be the problem And it certainly isn't worth the money and MAY NOT be the fix).


I really hated saying that. I really don't like to hear that any of these TVs went to landfill!!!!

Mark Goetz

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by Ricanmeng
Hello,

I have already replaced both ICs to no avail. The tv show similar symptoms where I turn it on, the screen has a blue hue then blooms to full blue screen then shuts off. This is followed by the 7 blink code. Any ideas before I chuck this beauty?
I would first say....
Check and recheck everything. Soldering, connectors/jumpers (depending on how you got to ICs), everything.
Also, it is possible you got a bad IC .
Did you install sockets and order extra IC or two?
And you say you replaced "both" ICs. Their is another one on the A-board (depending on model) that could be the cause, too.

Not saying this is the problem to start with, but is a good possibility it is one of them. As 7 blinks indicate Horizontal Deflection Stopped and the manual does not give a possible cause .


Good Luck and hope this helps

Mark Goetz

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by email4eric
Well...no--I no longer have any degaussing sound. Also, my flashing light goes through one cycle and then either stays on solid or goes out. The fact that it isn't repeating is what I'm trying to figure-out. What does that mean? Does anyone know what the fact that it no longer degausses means?

I have indeed tried the leave-it-unplugged-overnight approach to no avail. When pressing the power on button, I simply get a coupld of clicks with 6.5 blinks of the light. The the light stays on if I'm powering up manually and turns off if I'm using the remote.

Just trying to figure-out if this is the usual D board problem or something worse. Thankfully, there are about 15 of these used on CL for a couple of hundred. Just a PITA to move and dispose of...

Thanks!



Also........................
You may want to post a new thread with the problem (if you haven't). As it doesn't seem to be giving you code flashes. Someone may know the problem that isn't checking here, because I really don't believe your getting any code flashes.

Again, Sorry!!! I couldn't be more help to you

Mark Goetz

You have Sony that wont power on and standby light blinks Help and suggesti

I have checked my connections and tested for any shorts. I also have 5 IC's altogether to play with. I am afraid she will be laid to waste in the landfill. I love CRT's and she will be missed. Onward to dark greyish blacks and all so trend WAF.

Ricanmeng

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by Ricanmeng
I have checked my connections and tested for any shorts. I also have 5 IC's altogether to play with. I am afraid she will be laid to waste in the landfill. I love CRT's and she will be missed. Onward to dark greyish blacks and all so trend WAF.

Before giving up altogether, you might want to check out the Television Troubleshooting forum over on Agoraquest.com:

http://agoraquest.com/viewforum.php?forum=34

Try several forum only searches with your model number and/or the symptoms and see what you can find:

http://agoraquest.com/searchbb.php

And you might also want to post a request for help in that forum with a descriptive thread title. (Put the model number in the title along with a short description of the symptoms.)

For motivation, just remember that if you can fix it you won't have to move it.

Good luck!

Bob

RobertF

You have Sony that wont power on and standby light blinks Help and suggesti

I received my D-Board this afternoon from Sears. They did in fact have it in stock. I went about replacing it with very little drama. The new board did NOT come with flyback or focus cables so all three cables (on my set there is the large red flyback cable, small red cable and small black or blue cable) had to be forcibly removed from the FBT. Only the flyback cable was really hard to remove, the other two came right out with a decent amount of force. Installed the new board, plugged everything back in and . . . PICTURE!

I will say the set now has some display artifacts (horizontal wavy thin lines) that are only visible when really close to the set, and only in SD (4x3) mode where you have side black bars to notice such things. Additionally the upper left corner (from the from of the TV) seems to have drooped a tiny bit. I think I've also lost some focus. Frankly with what this set has been through, I'm just happy that it is usable. HD looks good but maybe not as sharp as it once was - I'll have to watch more to decide how it really looks as I'm exhausted right now. If anyone has suggestions on how to sort out these issues I'll be willing to try them. For the short term I will let it be as I'm done messing with it and don't feel like unscrewing 17 screws to get to the innards again any time soon.

Total repair cost: $200 for d-board delivered and $50 for some advice on how to dismantle everything. I also have the old d-board and if I want at some point I can try my hand at soldering that, but at this point, if the TV dies again, it's history.

johnc_22

You have Sony that wont power on and standby light blinks Help and suggesti

As a followup to my previous email about my new d-board working, I thought I'd post a representation of the lines that I'm seeing on the screen when on a VIDEO input that is unused. On VIDEO5 where I have my Comcast DVR, it looks like the attached image. On the other inputs the lines are twice as dense (twice as many lines).



Is this interference from something? Perhaps the flyback cable is not correctly inserted into the tube (I did have to remove it and reinsert it, after the set had been powered off for a few days). I tried to take a picture but was too sleepy to take the time to get a good exposure.

Are there any procedures that I should follow after replacing the d-board to restore image quality, or do I need to dig into the service menus for this. Thanks for all the helpful info!

John

johnc_22

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by johnc_22
As a followup to my previous email about my new d-board working, I thought I'd post a representation of the lines that I'm seeing on the screen when on a VIDEO input that is unused. On VIDEO5 where I have my Comcast DVR, it looks like the attached image. On the other inputs the lines are twice as dense (twice as many lines)....Is this interference from something? Perhaps the flyback cable is not correctly inserted into the tube (I did have to remove it and reinsert it, after the set had been powered off for a few days). I tried to take a picture but was too sleepy to take the time to get a good exposure.

Are there any procedures that I should follow after replacing the d-board to restore image quality, or do I need to dig into the service menus for this. Thanks for all the helpful info!

John
This may be a Screen(G2) adjustment issue. Looking at the flyback transformer from the rear, there are 3 adjustment screws. The TOP one is center focus, and the bottom LEFT is G2. Make very small adjustments to G2 while viewing the black screen and adjust until the lines just disappear. If no change is observed, return the adjustment to its original position.

Be Careful of the High Voltages. Don't touch anything on the flyback transformer (except for the screw, with an insulated screwdriver) or the wires connected to it while the set is powered on. Good Luck

raouliii

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by raouliii
This may be a Screen(G2) adjustment issue. Looking at the flyback transformer from the rear, there are 3 adjustment screws. The TOP one is center focus, and the bottom LEFT is G2. Make very small adjustments to G2 while viewing the black screen and adjust until the lines just disappear. If no change is observed, return the adjustment to its original position.

Be Careful of the High Voltages. Don't touch anything on the flyback transformer (except for the screw, with an insulated screwdriver) or the wires connected to it while the set is powered on. Good Luck
Thanks - very helpful. I'll probably hold off until this weekend before I take it apart again. I want to collect any recommendations for things that must be done inside the set before I take it apart and put it back together (17 screws is a bit excessive).

Would the "center focus" that you mention above affect the overall sharpness of the picture, particularly in 16:9 aspect? I may just be paranoid but I seem to have lost some sharpness. I also noticed a bit of green shadow on the VIDEO 5 text. These were quick observations by someone in a hurry to get to bed. I'll make more careful observations when I'm at home tonight and watching a good bit of TV.

johnc_22

You have Sony that wont power on and standby light blinks Help and suggesti

I've read previously that there is set specific calibration data stored on an "EEPROM". So it might also be that your calibration data is off since you replaced the entire D-Board.

Here's one discussion of this over on Agoraquest that I found via Google:

http://www.agoraquest.com/viewtopic....d2=electronics

Specifically, here's what forum member jehill wrote:

Here's what Sony has to say about it in the training manual:

"Even if old data is transferred, the component tolerances for the drive circuits are different for each board and you will have to re-converge the set anyway. Install the new board and perform the convergence adjustments. Static alignments will be minimally affected and only dynamic adjustments will need to be touched up."

RobertF

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by RobertF
I've read previously that there is set specific calibration data stored on an "EEPROM". So it might also be that your calibration data is off since you replaced the entire D-Board.

Here's one discussion of this over on Agoraquest that I found via Google:

http://www.agoraquest.com/viewtopic....d2=electronics

Specifically, here's what forum member jehill wrote:

Here's what Sony has to say about it in the training manual:

"Even if old data is transferred, the component tolerances for the drive circuits are different for each board and you will have to re-converge the set anyway. Install the new board and perform the convergence adjustments. Static alignments will be minimally affected and only dynamic adjustments will need to be touched up."
Re-converge would mean realigning the 3 (RBG) guns? Is this something a novice such as I can/should attempt? Is this a service menu adjustment or a physical adjustment on the rear of the tube? Now I know why people get paid a lot of money to do this!

johnc_22

You have Sony that wont power on and standby light blinks Help and suggesti

I'm not sure what exactly "re-converge" means. Perhaps another forum member here can help.

And jehill is still an active member on Agoraquest if you want to post a question there. (You could even respond in the thread I linked above.)

Good luck!

Bob

RobertF

You have Sony that wont power on and standby light blinks Help and suggesti

i religiously read this thread over and over. i have a 34xbr800 with the 7 blinking lights. i oredered the revised ic chips, had a friend take out the old chips and replace with sockets. new chips came in and......................bam!!!!
brand new tv. works great. instead of trying to find the defective chip,i replaced both. you guys saved this tv from the trash. by the way, i left the d board in and just flipped the tv on its face and sides to desolder. i had to cut away a piece of plastic to access the underside of the circuit board.

upspila

You have Sony that wont power on and standby light blinks Help and suggesti

Quote:
Originally Posted by upspila
i religiously read this thread over and over. i have a 34xbr800 with the 7 blinking lights. i oredered the revised ic chips, had a friend take out the old chips and replace with sockets. new chips came in and......................bam!!!!
brand new tv. works great. instead of trying to find the defective chip,i replaced both. you guys saved this tv from the trash. by the way, i left the d board in and just flipped the tv on its face and sides to desolder. i had to cut away a piece of plastic to access the underside of the circuit board.
Congratulations on your successful repair! Another high end CRT saved from a landfill.

Others have also been able to replace the ICs with the board in place. Nice work with that.

RobertF

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