Question about Sony FD Trinitron WEGA KV-32XBR400 32" TV

Sound but no picture

Hi All, need some help here. I came home the other evening, turned on my set, then after 5 minutes the picture just went out. Sound is still fine I can change between video sources but nothing on the screen. Not even the volume bars. I'm not getting any led code flashes either. I've tried the 4 hour reset, but still the same problem. Any help supplied would be apreciated. thanks

TimBigred Aug 24, 2007

Thanks for the info Mike,
Can you tell me which board the chip is on?
Perhaps I can bring the board to a repairman instead of lugging the 150 lb set around.
I know my way around the inside of the set.
thanks

1 Answer

Mike Longo

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398 Answers

The only time I have seen a Sony set with absolutely no picture and no on-screen menu but no error codes from the front LED, the main signal CXA jungle IC was bad and needed to be replaced. This is something that should only be attempted by a qualified tech familiar with Sont sets.

Posted on Aug 23, 2007

Mike Longo Aug 24, 2007

Obviously, I have not seen your set so I cannot say for sure that your jungle IC is bad. I also do not recommend taking the board to a TV shop because guessing at the problem offers no quarantees that the set will work after you pay to have a new IC put in (if the shop agrees to do that), and it is possible that the board can be damaged where it wasnt before. However, if you still want to go that route, look on the CRT board and there will be wires attached, and the jack that has the red, green, blue information wires will go back to the board that contains the jungle IC. The most notorious jungle IC for causing problems is the CXA1477 series.

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