Question about Mitsubishi WS-48315 48" Rear Projection HDTV-Ready Television

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The television picture just went out in the middle of watching it. The audio is still working.

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I would be concerned about the convergence board. I have repaired a few of these and by now you have several bad grounds in the convergence board.The convergence IC has separated its pins from the board. I can not say enough about bad grounds here. They are too numerous to even begin. One will have to pull this board very carefully, this is no easy task. Examine it very, very close. You will find several bad grounds, power resistors, diodes. the IC itself, jumpers, and jumper jacks that connect the boards, transistors, capacitor grounds, any other IC that is attached to heatsinks etc. The other board will be the power supply board and it will have many bad grounds here as well. The vertical IC can be a culprit, as the pins on here have separated as well. Once again look for bad solder grounds on the flyback. horizontal transformer, transistors,diodes and the like. Always inspect the pins on ICs attached to heatsinks. I know this sounds like a lot of work and it is. But with patience it may be done. You soon learn why they charge a lot for repairs. Thanks for asking and show a few hands of support!

Posted on Mar 12, 2011

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