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sony-KV29ST71

 
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leafar



Joined: 15 Mar 2007
Posts: 42
PostPosted: Wed Nov 17, 2010 12:45 am    Post subject: sony-KV29ST71 Reply with quote
History of problem:No power :shorted c4664,busted 4amp fuse,def. STV9379.Replaced these parts. At switched on no picture only white flash have seen on the screen. At the top of flyback transformer, i have visibly seen a leakage comes out from the red wire socket.

Any idea sir,please help.

thanks.
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leafar



Joined: 15 Mar 2007
Posts: 42
PostPosted: Thu Nov 25, 2010 2:53 am    Post subject: Re: sony-KV29ST71 Reply with quote
leafar wrote:
History of problem:No power :shorted c4664,busted 4amp fuse,def. STV9379.Replaced these parts. At switched on no picture only white flash have seen on the screen. At the top of flyback transformer, i have visibly seen a leakage comes out from the red wire socket.

Any idea sir,please help.

thanks.


put a sealant at the top of flyback transformer and the leakage was cured. Switched on the Tv still no pic ,only the relay clicks and white flash on the screen.

any idea sir?
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leafar



Joined: 15 Mar 2007
Posts: 42
PostPosted: Wed Dec 08, 2010 11:55 pm    Post subject: KV-29ST71 Reply with quote
adjust the g2 voltage , comes out with normal sound ,but the picture with severe horizontal lines.
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leafar



Joined: 15 Mar 2007
Posts: 42
PostPosted: Sun Dec 12, 2010 11:42 pm    Post subject: Re: KV-29ST71 Reply with quote
leafar wrote:
adjust the g2 voltage , comes out with normal sound ,but the picture with severe horizontal lines.



anyone can help me what is the exact value of a resistor in series with a capacitor 200V PHI 105k markings going to pin 10 of the flyback transformer.the resistor is burned. ty
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