Question about Mitsubishi WS-55711 55" Rear Projection Television
The green shadow being the image. while trying to set the convergence, the red and blue will align with a green cross , formin the white line. however there is another green cross just to the right of the aligned colors , and there is not enough adjustment to get the red or blue crosses to this green cross,any suggestions would be appreciated,, thanks in advance
This is a V-21 Chassis common, with these symptoms, for failure of the convergence amps. This set uses two STK 392-110 Sanyo amps mounted on a heat sink and hard to miss. They're a 40 pin ic about the size of a half pack of cigarettes.
It has also been my experience that two or more of the yoke return resistors need to be replaced, most commonly R8c21 and R8c22, both are 3.9 ohm 1w but test all of them for reliability.
Hope this helps!
William Rayburn, CET
PO Box 442
Long Beach, WA. 98631
Posted on May 14, 2009
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Posted on Jan 02, 2017
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