Question about Sony KP-51WS500 51" Rear Projection Television
Our tv is blury, double vision with white lines going through it and not centered. The middle green bulb flickers at first then it will go out completely. iIf you turn the tv off and on again, it will light back up but soon after go out again
This is a very common failure on Projection TV sets.
Posted on Nov 28, 2009
There seems to be two problems with the unit. The first symptom indiates your convergence IC's needs to be replaced. The second symptom coud be a several things, 1. Bad connections on the Crt board of the green tube, 2. The 200v screen bias voltage supplied by the flyback could have bad connections on it. Seems you have intermittent cold solder joints. Check the D board around the Flyback area for bad connections, or old grey looking solder connections all should look shiny. 3. The Green Crt maybe going faulty, the lines going thru the picture are scan lines and indicates that the Screen controls are to high. But i know you have'nt adjusted these so i would suspect the Green Crt is Faulty. But check solutions 1&2 first, One way to find out if its bad is to unplug the green crt board from the tube and turn the set on if it stays on and does'nt shut down then it is faulty, also while turning on look at the crt's neck for sparks which indicates arching in the tupe and will need to be replaced. Replacing the Convergence IC's will solve the distorted pic issue.
Posted on Nov 19, 2009
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Posted on Jan 02, 2017
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