Question about Mitsubishi WS-65869 65" Rear Projection Television
Picture is washed out except for when the antenna menu is called up, then you can see picture in perfect color in the background. just changed out the convergence IC (V19 chassis has only one) also CRT's are snapping or crackling more than i believe they should, probably related to picture problem. Found an electrolytic cap loose on signal board and resoldered. Any ideas?
Sorry, but when the coolant leaks down onto the small signal board, that board will never work right again. The fluid penetrates the board itself since the board is double sided and has many feed-throughs. The fluid gets under the surface mount parts and just eats through the copper traces, part leads and board itself. After trying many times to clean and restore those boards, not one has ever worked right again. The boards are NLA from Mitsubishi, so the set is done.
Posted on Aug 30, 2007
SOURCE: MITSUBISHI WS 65807 RED CRT OUT
It' sound like you have a bad crt, to make shure, just disconect the red crt baord and green crt board next to it and move then so you can try the red crt board on the green crt. If it does the same problem in witch I realy thought it's your video or hight voltage sounce on that board. If you get no problem well it's your crt.
I can almost garranty it's your crt.
Posted on Jan 19, 2008
HELLO YOU FIRST NEED TO UNPLUG THE SET , THEN TAKE OFF THE BACK OF THE SET. AND LOOK FOR TWO LARGE SILVER HEAT SENK'S THE IC CHIP'S WILL HAVE STK-393-110 ON THEM.!!! WILL BE SCREWED TO THESE HEAT SENK'S WITH SCREW'S AND SOLDER TO THE BOARD ON THE BOTTEM OF THE BOARD,!!! WELL "GOOD LUCK"
Posted on Nov 25, 2008
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