PROBLEM: sony KDL-46WL140 horizontal dashed lines bad T-CON board? - AVS Forum
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post #1 of 7 Old 12-10-2012, 09:54 AM - Thread Starter
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I found someone here with a seemingly similar issue
http://sony.lv/discussions/message/790926

Here are some photos from the TV I am trying to troubleshoot.





Anyone seen this? In the thread on the first link one poster said a new T-CON board fixed his problem... But I've seen other people say they have bought T-CON boards and it didn't fix their problems... but I've never seen exactly what problem they were having.

I was just hoping someone here would see the photos and quickly say... yep... it's the T-CON board... they cost $99 and take 15min to replace.

The part number of the T-CON board is
1-857-273-11

most places are OOS (they have a decent photo and some other details)
http://www.shopjimmy.com/sony-1-857-273-11-t-con-board.htm

They are on ebay for $75-140+

This TV is about 4 years old.

--mizary
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post #2 of 7 Old 12-12-2012, 07:27 AM
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Why not just give the TV to an authorized repair outlet?

There.. issue resolved!
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post #3 of 7 Old 12-12-2012, 08:11 AM - Thread Starter
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Quote:
Originally Posted by techfreak191 View Post

Why not just give the TV to an authorized repair outlet?
There.. issue resolved!

Well gee why didn't I think of that?! Hmmm... I bet you could solve any TV issue that way. You must be a wizard.

I suspect any authorized repair outlet is going to charge more to fix this TV than it is worth. Plus if someone could tell me - yes, it's the T-CON board - it's about a $100 fix that I can do myself.

Any ideas on what the TV is worth? My guess is about $500-600 if it was working... Maybe $100-150 as-is.

--mizary
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post #4 of 7 Old 12-12-2012, 09:21 AM
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Hello mizary,

I apologize that you are having issues with your KDL46WL140 Sony television. To get this resolved, you may email us at sonylistens@am.sony.com Please include your model#, a brief description of the product, and any contact info. When you email us, please provide them your Event ID # that I created for you. It is E56282978.

I look forward in resolving this issue in a timely manner.

Thank you for choosing SONY, and have a good day.

-Josh James
Sony Support USA
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post #5 of 7 Old 01-03-2013, 12:06 PM - Thread Starter
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Quote:
Originally Posted by SonyListens View Post

Hello mizary,
I apologize that you are having issues with your KDL46WL140 Sony television. To get this resolved, you may email us at sonylistens@am.sony.com Please include your model#, a brief description of the product, and any contact info. When you email us, please provide them your Event ID # that I created for you. It is E56282978.
I look forward in resolving this issue in a timely manner.
Thank you for choosing SONY, and have a good day.
-Josh James
Sony Support USA

Just noticed this... I sent an email. Hope you can help... thanks!

anybody got a 1-857-273-11 T-CON board laying around they aren't using? smile.gif

--mizary
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post #6 of 7 Old 01-09-2013, 03:36 PM - Thread Starter
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Quote:
Originally Posted by SonyListens View Post

Hello mizary,
I apologize that you are having issues with your KDL46WL140 Sony television. To get this resolved, you may email us at sonylistens@am.sony.com Please include your model#, a brief description of the product, and any contact info. When you email us, please provide them your Event ID # that I created for you. It is E56282978.
I look forward in resolving this issue in a timely manner.
Thank you for choosing SONY, and have a good day.
-Josh James
Sony Support USA

Well crap... I should have known better. Sony told me I would have to take the TV to an authorized repair shop for them to tell me anything... So my friend did that. The shop wanted $477 (after tax) to replace the T-CON board. Then I sent that info to Sony and they said we would have to call them to find out what the replacement options were... I was hoping they would pay for the repair or at least part of it... NOPE... they offered to sell them a re-furbished TV for $580 + tax. ??? what Why would they do that if the repair place would fix it for less???

So basically Sony just wasted everyone's time and in the end just tried to sell us a crappy refurbished TV. *SIGH*

so our plan is to keep looking for a cheap replacement T-CON board and replace it ourselves.

thanks for nothing Sony.
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post #7 of 7 Old 01-09-2013, 06:18 PM
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My KDL-40W4100 has the same problem, just fewer lines. Mine went from two to eight lines over a couple of months before I retired it. It's the TCON board. See my messages for more on my experience trying to replace this board myself:

http://www.avsforum.com/t/1433545/finding-a-working-tcon-board

http://www.avsforum.com/t/1407673/official-sony-hx850-owners-thread-46hx850-55hx850/780#post_22591592

I'm just going to go ahead and quote the second message, which discusses Sony's rude, unhelpful phone "support", which directed me to the worst rip-off repair site I encountered previously doing my own research, a site going by an alias on the Internet, a site I previously blocked forever from my google searches.
Quote:
That's a safe bet. Sony is not being nearly so generous when it comes to faulty T-CON boards in the W4100 series, for which they want $413 and won't accept returns for any reason whatsoever. Apparently, it's a widespread problem, because I've been through three used boards, which solved my problem completely, but caused different worse problems of their own, and all three exhibited different problems. In each case, putting my board back in returned me to my original problem. I know I'm ordering the right part, because Sony has published a document on the subject including part numbers for serial number ranges. More on my experience with this problem here:

http://www.avsforum.com/t/1433545/finding-a-working-tcon-board

The only conclusion is that the three companies that shipped me parts are salvaging broken TVs, harvesting the parts, and selling them without testing them. At least shopjimmy.com and retechtv.com issued full refunds and prepaid return labels without any hassle. The other company lied to me repeatedly about the return label. The fourth company I ordered from didn't ship me anything. I had to get my credit card company involved in the last two.

I did call Sony and got a couple of heavily accented "agents", one of which rudely suggested, "Why don't you just buy a new TV so you won't have to worry about this?" That's real nice considering I spent $1700 on the TV and used it maybe a couple of hours a day for 4 years. Then she blew me off to "Herman's TV Repair", whose phone number matched encompassparts.com, a site I had blocked long ago from google search results due to its ridiculous pricing, which is even worse than Sony's, with a $180 refundable (yeah right) "rebuild fee" on top of the $413. That's another thing. Many of these parts stores go by multiple names, and their web sites conceal them. For example, "HDTV PartsStore" is really Tri-State Module, and don't get me started with the Asian shops in NYC. I've blocked a couple dozen of these scam sites in google search.

Oh, if you still care, the Sony document on the TCON board can be found here:

http://www.scribd.com/doc/25276757/E40951307-TCON-Troubleshooting-10-22-09-OPT

You need to match the part number to TV serial number to have any hope of success. Oh, I almost forgot my follow-up message, where I went into even more detail on the various TCON failure modes I encountered:

http://www.avsforum.com/t/1439561/replaced-t-con-board-and-now-getting-vertical-lines#post_22672795
Quote:
FWIW, all three of the defective TCON boards I bought and returned solved my minor problem completely and produced a picture along with or before exhibiting their own problems, which were completely different than mine, as well as each other. The first one was perfectly fine for about a minute after turning the TV on, after which the picture went completely nuts and stayed that way. So apparently that one was unstable once it warmed up. The next two were bad immediately upon turning the TV on. The second one produced the most incredible flashlighting I've ever seen; it had the "CORRUPTED UNIFORMITY ADJUSTMENT DATA" problem depicted in the Sony document at scribd.com I linked to above. The third one exhibited a "vertical blinds" effect; it was like some semi-transparent vertical blinds were superimposed on the picture, and they'd vary in intensity as the scene changed. At this point I gave up. Note that each time I put my board back in, my TV returned to my original problem, those 4 (ultimately 8, as 4 new ones have appeared) 3" flickering horizontal lines. So I don't think there was any problem with my technique or any other problem with my TV besides the TCON board.

My point is, if it really is just your TCON, I was 3/3 for getting a viewable picture, despite the three boards all having various defects that made them unusable and actually much worse than mine. So if you can't get a viewable picture after another board, it may be time to consider it's not just the TCON board.

I ordered from 3 different companies. Clearly, these companies are salvaging boards from broken TVs without testing them, and then they're selling them as functional. If it doesn't work, so what? I'm sure they paid pennies for the broken TVs, and their return rate can be way high while still allowing them to make huge profits given what they sell the parts for. Lots of the companies advertise with similar text, claiming that the boards were taken out of working TVs with a broken screen and fully tested. They are all lying. If you get one that works, consider yourself very lucky. And be wary of a lot of these companies; a single company can have several different web sites with different names. Be prepared to jump through hoops and even have to fight a bit for your refunds.
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