Question about Mitsubishi VS-50705 50" Rear Projection Television

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2 PROBLEMS FIRST, I THINK THE TV TUNER IS BAD. ANY COAX LINE LINPUT IS ALL FUZZY AND ONLY A FEW CHANNELS COME IN AT ALL. IT WONT ALLOW THE TUNER TO REPROGRAM ALL THE CHANNELS. IF I USE AN RCA INPUT COMING FROM MY CABLE BOX I CAN SEE AND HEAR EVERTHING. 2ND PROBLEM IS THE TV WAS SHUTTING OFF ON ITS OWN AFTER 1/2 HOUR OF VEIWING. NOW IT WONT STAY ON FOR MORE THAN A FEW SECONDS. DO THEY SELL OR OFFER REPLACEMENT TUNER BOARDS OR THE PARTS THAT I COUND FIX THIS TV? MITS VS 50705 SER #124702 BUILT JAN 2000 THANKS

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Your two problems are different . Your tv shutting down is not due to the tuners . First thing i would check is to unplug set and take the back off . On the left side is the board with your tuner on it . Look on that board to see if these is any liquid buildup on it. One of your picture tubes could be leaking causing set to shut down . This can also be causing your snowy picture problem as the liquid has started to spread . The metal braket above this board is where the liquid starts to trickle down from . Use a flashlight to see . If you see no liquid then you have hv sweep problem which would need to be checked out. If you still want to get a board www.ptscorp.com May have your board in stock . Good luck

Posted on Mar 04, 2008

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