Question about Toshiba 43H71 43" Rear Projection Television
After my 43H71 is on for about 30 minutes, red and green lines begin to appear at 1/3 and 2/3 on the screen. At first, it's just a few pixels along these lines. As time goes by, more and more dots appear along these lines until they are almost solid (about after an hour of the TV being on). I've done the touch focus auto convergance, but I don't know what else I can do. I just recently move the TV across the city, and the problem was not present before the move. (We were careful, and didn't hit any big bumps or anything....)
I agree W/Techman sounds like the convergence amps are goeing bad if you do change them upgrade to stk392-180 for the stk392-110 they will last longer good luck Walter Grzybowski
Posted on Sep 25, 2006
You have bad connections on the board and need to be resoldered or the convergence IC's are bad. If you know how to solder on solid state elctronics then you can change the IC's or find a bad connection on the board if you know the High Voltage issues when working on a TV set. If you have to training on TV sets I highly recommend that you call a service person to assist you in this repair.
Posted on Sep 25, 2006
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Posted on Jan 02, 2017
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