Question about Hitachi 53SWX10B 53" Rear Projection Television
....after set warms up the sound will drop down, the pix gets dark , picture flops over horizontally, color drops out....not a convergence problem....thanks for any help on this,,, jim firstname.lastname@example.org
THE FIX FOR THIS PROBLEM WAS A NEW MICROPROCESSOR...TA1316AN...PLUS SOLDERED ALL CONNECTOR POINTS BETWEEN CIRCUIT BOARDS....ANYTHING THAT LOOKED LIKE IT NEEDED SOLDER GOT IT....SET HAS BEEN RUNNING FOR 24 HRS STRAIGHT WITH NO PROBLEMS...HOPEFULLY THIS WILL NOT BE A CALL BACK !!!!
Posted on Dec 24, 2007
I think you may have a couple of problems cooking there. First, the audio board in that unit is commonly a lemon. Several Ic's on that board need to be checked, possibly replaced and there are even several modifications to do if something NLA is not working.. Your best bet is sending it into PTS for rebuild.
The second problem horz tear and dark pic could be a result of the spark gap, crt pins and/or crt board. A few simple tests for a shop can confirm that...
My advice is take this in... With the multiple of problems it would be quite difficult to determine what looks bad and what actually is on the audio board without a highly trained eye and technical experience. The other should be a breeze for a shop.
Posted on Nov 20, 2007
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