Question about Sony FD Trinitron WEGA KV-34HS420 34" TV

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Sony KV34-HS510 is there a certain IC that has a history of going bad that makes the TV make a clicking sound every time you try to turn it on

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TV's always make a clicking sound as the Main Power relay turns on. If you are asking why it then doesn't turn on, it can be many things. The processor monitors a number of circuits and if something is amiss, it turns off. The most common failure is the high-voltage circuit and if the set is any where near 10 years old, I'd plan on replacing the flyback transformer as well as anything else it damaged while failing.
Another option is to wholesale replace the main board from an outfit like PTS Electronics at
Hope Ya Fix It!

Posted on Feb 04, 2008


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I have a Sony Wega KV-34HS420 TV that takes several tries to turn on. When I push the power button or remote power on I hear the normal click and the sound comes on for 3-5 seconds but then I hear a second...

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I have a 2004 Sony Wega Trinitron KV-HS510 that will not turn on. When I try to turn on the TV it sounds like it will power up and then I hear a click, and the TV turns itself off. The Stand By Light is...


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Hope this helps you...

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i dont think its HV
3 blinks is B+ voltage.

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sum times andrews electronics has them for around $80

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