Philips LCD TV Colors do not line up

[portseventeen]

Hello everyone! Thanks in advance for reading my thread

This past christmas I bought a Philips 40PFL4707 off Woot, refurbished. I've barely used it in that time, yet about a week ago the colors started to have problems. The red seems to be vertically off from the other colors, appearing lower. There is also a dark bar at the bottom of the image, I assume related to the colors not lining up. This happens on all inputs and to the menus as well. See pictures below.

For a while this problem wasn't constant, flickering on and off. It seemed during this time that the amount the colors were misaligned would shift a bit. Now its pretty constant.

I'm hoping you guys can give me some advice on what may be wrong. I have a good bit of hobby electronics experience, though little with high-voltage equipment. If its a simple-r problem like checking capacitors, I am confident in my abilities. Because the TV was a refurb, the warranty has passed.

Thanks again!

[topng]

Re: Philips LCD TV Colors do not line up

the problem is in the tcon board .
take a pic and we see if you can fix it, or more simply be replace it

[portseventeen]

Re: Philips LCD TV Colors do not line up

Thanks for the direction. I'll try taking it apart this weekend.

Are you pretty sure its the tcon board? I was having a hard time diagnosing the differences between those problems and tab bond problems.

[topng]

Re: Philips LCD TV Colors do not line up

it looks like that
but you Never can be sure at 100 percent

i have not seen such a specific screen
but usually that's is the problem
maybe when there were pictures maybe someone will share his experience with us in this screen

[portseventeen]

Re: Philips LCD TV Colors do not line up

I'm honestly a bit confused. Is this my T-con board? Its a different size than the ones I've seen, but it looks like its hooked up to the logic board and the LCD.

If its not, any idea where that board is? I'm having a hard time finding info on this/a similar TV.

Nothing look damaged on that board or anywhere else as far as I could tell. No bulging capacitors, burnt areas, etc. I have not tried turning the tv on since opening it up.

Thanks much, let me know if there is anything else I can do to try to figure this out.

[philliesfan30m]

Re: Philips LCD TV Colors do not line up

yeah thats the t-con but those types aren't replaceable because they are fused to the board from the panel. did you try moving or putting pressure on the 2 tabs that go to the panel and see if anything changes on the screen?

[portseventeen]

Re: Philips LCD TV Colors do not line up

I've just gotten around to trying to fix this TV again. Applying pressure to the pads seems to do nothing.

I did notice that two of the components on the board, coils L5 & L6 are pretty melted. They definitely get hot with the TV on. Maybe that's my problem? I've attached a shot with L5 & L6, as well as a close-up of L6.

While I have a reasonable bit of soldering skills, I'm not an expert at testing components. I am up for trying anything to fix this TV, as I have the time and otherwise its a total waste.

p.s. It may be worth noting that the amount of vertical color misalignment seems to shift a bit when the TV is started, but stabilized while its running (as shown in pictures above).

[genuineguy]

Re: Philips LCD TV Colors do not line up

Did you fix the problem ? i have an ongoing project to fix the same model TV but for a different problem

[ReeceyBurger123]

Re: Philips LCD TV Colors do not line up

He never BOTHERED to update his thread so no one knows. Genuineguy start a new thread mate and will help you out

[genuineguy]

Re: Philips LCD TV Colors do not line up

Hey ReeceyBurger. Thanks for your response. I already have a thread open for my problem. I will update it as i make some progress. waiting for components