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Need expert advise - Philips TV

Hello everyone, i have Philips tv (58PUS8505). Buyed for 50eur as not working. At begining, tv showed no image, just backlight and sound. After dissasembling it, i connected only one panel at time and then turned on. Left side are ok, right side have moving horizontal lines, when pluged both panels, no image. Blocked one pin on tcon right panel (marked on photo)

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, image apeared, but with some distortion. When starting color calibration, those lines appear clearly as white ones. If i lower color from 255 to 229 (10% darker, lines dissapear. Adding photos:

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. So is it tcon (or its riborn cable) or panel driver? Is it worth to invest 20eur more for new tcon?

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@scarycourage sounds like an issue with the right sided buffer board. Take a look at it and see if there are any components that might have gotten damaged. You mentioned that you "Blocked one pin on tcon" Try to tape off more of the data lines and see if that makes a difference. A lot of times you have to "play" with it and change the number and location of where you block the signal. Just based on a Tape-Off working, is a good indication that this is a buffer board issue vs a T-Con board issue.

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7 Comments:

If i block 1-5 pins, all at time or one by one image is almost the same, no much difference. If i block 6-... image gets horizontal lines to full screen or even black screen. What do you mean buffer board (sorry for dumb question)? Where i can find it? Near panel or main board?

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@scarycourage buffer boards are the (most times) two boards that connect directly to the LCD panel. The long skinny boards where the cables from the T-con board plug in to.

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Oh, those ones. I checked resistors on bad side and it seems all good, but nothing more. And didnt see any major damage or burn with my eyes. So you say t-con is nothing to do about it and must inspect more on buffer board?

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@scarycourage when you blocked the signal like you did you are actually blocking it from the buffer board not the T-con board. Since that helped the issue will be with the buffer board. Now, try and block the signal on the ribbon cable from the T-con boar to the right buffer board. You do that simply by covering the pins on the cable connector.

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@oldturkey03

Here's the service manual if need be.

Cheers

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