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 ptscorp.com.
Hope Ya Fix It!

Posted on Feb 04, 2008

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Posted on Jan 02, 2017

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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...


Since the set appears to "recover", it suggests either a poor solder connection or bad cap somewhere in the power supply. The 7 blinks indicate the problem circuit is in the horizontal area. Check the regulator (STRxxxx) IC in the power supply. If you do not have experience working with TVs, please refer this repair to a shop. The regulator IC costs around $25.

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Nov 16, 2009 | Sony FD Trinitron WEGA KV-34HS420 34" TV

1 Answer

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...


Hello,

7X blink is a generic Horizontal Deflection Stop code. There is a chip in the TV, IC8005 or 8006 if I'm correct, that routinely goes bad on these sets. It could be one of any number of transistors or IC's, but that one is usually the culprit.

The chip itself is around 40 dollars, and with labor, you're looking at about 125-175 average, barring any unforseen problems. That's in-shop. Tack on a service call charge if it is in-home (if anyone will do that for you).

Hope this helps you...

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1 Answer

Sony trinitronKV34-HS510 3 blink code


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

just replace the main board.
sum times andrews electronics has them for around $80
regards,
daniel.

Feb 05, 2008 | Sony FD Trinitron WEGA KV-34HS420 34" TV

1 Answer

Sony KV34-HS510


tv is in protection mode...first u most measure psu output, next horizontal transistor driver, and all outupts from flyback....and find witch one is in fault

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