Question about Sony FD Trinitron WEGA KV-32FS120 32" TV

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Sony TV I have a Sony Wega 32 inch, (kv-32fs120) that is blinking a 9 blink diagnostic code at the standby light. The on screen diagnostics gets the tv to come on and the only fault code I am getting is "ZCD" which keeps occuring after I clear the codes. I have been told that this is a zero crossover circuit, or something. I have the service manual and a source for the circuit boards, but I'm not sure which one it needs. I am thinking its the main board or "A" board, but am not sure. Seems like a power supply problem. I understand the procedures for discharghing the tv before working on it, so no problems there. Any help would be great!

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  • Frank D Oct 27, 2007

    Thats def the problem because I resoldered a group of components on the board in the ZCD circuit and it worked fine for about a week, then same problem.  Oh well, I tried, now I will replace the board.  Thanks for your respone T.

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I agree - "A" board best guess---can you return PCB if we are
wrong?? maybe a re-stock charge?....T.

Posted on Oct 26, 2007

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