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Have a Sony KP-51WS510 with red outlines

Have a Sony KP-51WS510 repairman replaced the three tubes and a couple of boards. He still can't get rid of the red around the outlines of mostly white area's. This also has taken the picture slightly out of focus. this problem is more prevelent in the composite and s-video jacks. thanks Bob

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In replacing the CRTs, there are multiple focus adjustments. The basic one first is the Mechanical lens adjustment on the CRTs, (in this case red), the second one is the Electronic Focus on the Screen/Focus Block on the front of the unit behind the front panel. The third focus and on of the most important is the Beam Centering Focus. (In this case RED CTR) It is located on the neck of the CRTs. They are the first set of adjustment rings up from the CRT Boards. If any of these focus adjustments are off they will cause a symptom like yours to occur. Normally these adjustments are made before any convergence adjustments are made. I would double check to see if the repairman made these adjustments.
I hope this helps
Skyassoc

Posted on Jun 29, 2009

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Sony KP-51WS510 51 in. Rear Projection Keeps blinking 5 times. The red and green projectors are working fine, but the blue is not working. Sears service replaced the power supply, and the first board, then...


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Sony KP 51WS510 convergence problem


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KP-51WS510


You do not need to replace the CRTs(picture tubes) just the assembly that is connected to the red CRT, or just the IC7101, with markings TDA6120Q.
I would suggest to put fresh solder on the IC leads first since the TV only becames red after is ON for a short while.
Click here to find the entire assembly for your TV.

Jul 15, 2008 | Sony KP-51WS510 51" Rear Projection...

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You need new convergence ICs replace both of them. they are located on the D board

Mar 23, 2008 | Sony KP-51WS510 51" Rear Projection...

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These sets had bad welds in the gun assemblies of the picture tubes. Now, one of the tubes has failed (shorted) and the cost would be too high to replace all three.

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