Question about Sony FD Trinitron WEGA KV-36FS120 36" TV

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I have a sony Trinitron WEGA TV. Model KV36FS120. I have no sound and no picture. The stand by timer LED blinks 9 times, pauses, then blinks 9 more times. I understand this is a code. What does this mean?

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9 blinks is a zero crossing detector fault. This is caused by a malfunctioning detection circuit located on the G board. I have not seen many of the 32" models have this problem. But if you were going to get it repaired the repair should not be cost prohibitive somewhere in the 150 dollar range. It is usually a diode in this circuit that has changed it's specifications, the diode it's self will not test bad but the unique function it supplies to the circuit will malfunction because of this shift. Normally i see this on the 57" big screens and not the direct view, but both use the same power supply and use the same error diagnostics.

Posted on Oct 10, 2009

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Ur high voltage is dead.FBT,the flyback transformer it dead.The big block of plastic with a red wire with a
cap hook to CRT(ur tv tube).

Posted on Sep 29, 2009

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