Question about Mitsubishi WS-55513 55" Rear Projection HDTV

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Mitsubishi ws-55513 I have a problem with a line that continuesly scrolls through the picture when using the DVI input on the TV, and if i use the other component or rca inputs on the tv the color is gone from the picture, but no scrolling line. Could both of these problems be the signal board? Is the signal board the same as the DM board? Thanks.

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On the signal board there are 4 surface mount transistors. I would replace them all but the culprit is probably is a transistor on the lower right of the signal board ( BA06) its right next to the input board, check the caps close to them also. If you look closely you will probably see cold solder and flux around it and the board will look browned there. This transistor when bad you will get wavy lines on the screen and they will go away after 3 min or so. It it has totally failed the set will come on and you will get no picture, but the OSD will work fine.

Posted on Nov 25, 2009

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Could be signal board issue,not related to DM.Might be terminal
board problem = less $ and easier to sub than signal PCB.......T.

Posted on Apr 24, 2008

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