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KV-32HS420 sony tv thay the stand by light blinked 7 times before repairs. I have replaced the IC6501 & IC8002. Now it blinks 6 times . Can some one tell me what to do next. I have a service manual for this unit & I am an electrician. Very handy with my tools and can perform some repairs. Please advise

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Hi,

first we start with the power supply,

we need to have at least 110v to have the deflection circuits working.


if you have a multimeter measure the voltage on the capacitor after the diode of chopper secondary windings.that would be the B+.

maybe the supply rail B+ is only about 45V or still lower
solution : replace the horizontal deflection flyback transformer maybe partially shorted

maybe no voltage at all
solution : check horizontal output transistor might be defective, replace if found shorted

maybe there is a good supply say at least 110V , but no oscillator drive on the horizontal output transistor, or blocked oscillator signal drive

hope this helps, thanks for using Fixya!

Posted on Jul 21, 2009

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Posted on Jan 02, 2017

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http://electro-medical.blogspot.com/
http://homenol.blogspot.com/
http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.
Search the site by type in the "brand name" to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

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