Sony KDL-46EX500 solid green screen

[omegaRED]

Hello,

i've tried to find something similar to see if it has been answered, but no luck. So here goes. I bought a used Sony KDL-46EX500 from my brother in law, which within 2 weeks turned bad. By bad i mean the screen turned white/purplish. Sound works, can change channels/inputs (blindly), the screen dims a bit while changing channels and brightens up again.

I've given the TV to a repair shop, they held it for a month apparently waiting for a part, which never came, so i took it back. Their quote was something around 200 $ for the repair, and they mentioned that the T-Con was bad.

Now the TV displays solid green. It's been running an hour or so now, at one occasion it started showing a picture, but most parts of the screen were covered in green (top half/corners), while the other part was kind of full with green pixels here and there.

Does this look like a bad t-con board? Because their estimate, compared to the cost of a t-con board of around 50 $, seems a bit much, even taking in consideration that i live in Macedonia and parts are not readily available here and have to be ordered from the UK/US/Asia.

Here's a pic of the TV.

Thanks in advance.

[tom66]

Re: Sony KDL-46EX500 solid green screen

Looks more like a bad main board to me.

Since the problem gets better over time, it is probably a temperature issue.

So I recommend getting a hairdryer or heat gun and blowing warm air over the boards to see if one particular place makes the problem go away.

[omegaRED]

Re: Sony KDL-46EX500 solid green screen

Looks more like a bad main board to me.

Since the problem gets better over time, it is probably a temperature issue.

So I recommend getting a hairdryer or heat gun and blowing warm air over the boards to see if one particular place makes the problem go away.

Hey tom66, thanks for the reply.

It did briefly show a picture, but maybe for a minute or so, before returning to the green state. It's been running now for 2+ hours, still solid green. I'll try to heat it up and see if that helps, though i doubt it.

Thanks again for the quick reply.

[omegaRED]

Re: Sony KDL-46EX500 solid green screen

Update: I've managed to capture a video of what it looks like. Seems that after turning the TV on/off several times, it now (albeit briefly) manages to display the picture properly before turning green. Hope it sheds some more light on the issue.

https://www.dropbox.com/s/y94smx05wb...416_205119.mp4