Having problems with your Flat Panel Televisions ?

Hi, so I was told to replace my psu by a tech because of what the service manual said. I replaced it and its doing the samething. No picture but sound. All of the readings are coming out correct. I tried to do a reset on the logic but but nothing happens. I can do a reset on the main input board but nothing happens after it resets the TV. The fan on the main input board does not come on at all. Please help. I can control channel, source and volume but still no picture.



Answers :

This no picture but sound issue is not caused due to power supply. The loic control board is also ruled out because all the other functions are operational. That leaves us with two possibilities 1) Sustain board(S) or 2)Buffer Boards
It is not possible to test the buffer boards but if we are able to rule out the possibility of the sustain boards then we can confirm that its the buffer boards. To isolate the problem component level testing would be necessary and you should have a multimeter handy. We will also need a service manual so I will look up my collection to see if I have one. Let me know when you are ready and we shall commence.

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