Question about Sony KP-53S25 53" Rear Projection Television

Sony KP53S25 My TV takes a long time to warm up so the picture showes up. The sound comes up but the picture does not. it was made in july of 1996. i am wondering how much it would be to get it fixed and if it would be worth it. thank you

januatu Feb 22, 2008

My problem is rather the same but the picture tubes show a horizontal line across the top, this does not show on the screen itself but when I am looking into the tubes when I turn on the power the lines appear indicating that the tubes receive some type of high voltage but no video signal to display.

First I have checked the capacitors in the poser supply board and hove only found one bad or low capacitor of 1000 mf that read 850mf and replaced it.
I have also checked the capacitors around the vertical I.C. in the board where the stk's are and they seemed ok.

A problem I noticed was that when I changed a capacitor in the board where the flyback transformer is located, I broke a line that lead to the (h)+ plug on the board, this problem caused the picture tubes to not turn on at all when I re-connected the tv. this capacitor is near the large transformer that is not the flyback transformer.

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3 Answers

vjthomas

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I am having color convergence problems. especially with the red lens

Posted on Apr 08, 2008

Anonymous

Put some duct tape on her and shel'll be just fine

Posted on Feb 07, 2007

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3,130 Answers

Your problem is a defect with the b+ going to the crt driver transistors such as a capacitor off the High voltage tranformer or could be a coil or resistor that changed value in the filiment curcuit. This is another hard one to say without more info. if yuo dont do any troubleshooting or dont have the know how then Im thinking its best that you call a pro.. Good Luck

Posted on May 03, 2006

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