Re: Mitsubishi WS-65711 - No Sound
That's exactly what the problem was. After I installed the repaired board I could not see that connector on the board and the wires with the 4 pin plug had dropped out of site so I completely missed it. Once it was reconnected all was fine with the sound and the picture was also looking good with the new chip. I surfed for a few minutes to thoroughly check things out and then I powered down the TV to reinstall the back panel.
But now I have a new problem, the TV will not power up. Right after installing the back panel and pushing the TV back in place it will not come on. Whenever I turn the power on, either from the remote or the front panel, the green light comes and I can hear the "click" and within 2 or 3 seconds it shuts off, by itself, with a "click". It does not stay on long enough to produce either picture or sound. I ran the front panel diagnostics and it returns error code "12" which is "Normal Operation, No Error Detected", per the Service Manual. I have performed a System Reset using the button on the front panel of the TV and have unplugged and replugged the TV, all with no resolution to this problem.