Question about Mitsubishi VS-45607 45" Rear Projection Television

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Intermittent vertical jitter.

Picture jumps vertically at a rapid rate. Looks as if the vertical sync pulse is somehow being affected. Sometimes the picture will lock in by turning the set off and back on. If the set is unplugged from the power source, it will play normal for awhile, the the problem will return. Sometimes it will play for hours before it begins to jitter. Pressing the PIP function on the remote will cause the problem to occur immediately. So far, I have resoldered the joints on the vertical IC (IC-451) and around the vertical section, as well as the power supply section and horizontal section. I have replaced all the electrolytics in the vertical section as well. Problem still persists. Any help will be greatly appreciated. Thanks, Proton1000

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Anonymous

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These sets have a PIP module which is plugged into main board and has a brown ground wire to the can.Surface mount caps c7001 and c7036 are usually the problem but if the capacitors have leaked too much you may never recover the board,CURE eliminate PIP by putting 10 mfd 50v cap from pin 5 to 11 and another from pin 9 to 7 on the VP plug under the main PCB

Posted on Nov 09, 2006

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