Question about RCA F27649 27" TV
TV will go off and on at different times (sound is OK). Switching on and off has no affect. Tried to put a fan to cool the board, seem to help for a while but it was apparently was not affecting it like I thought. Pulled board out but saw no heat build up. Any Ideas
Posted by Anonymous on
Randomly spraying Freeze Spray inside the set usually will not help you fix your set. You need to have a little more organized and scientific troubleshooting routine. Get out your DMM and measure the voltages in the power supply. When the screen goes black, is there still regulated B+ going to the circuitry? Do you still have HV? Is the filament of the CRT lit? Does the set still have a raster (you may have temporarily increase the screen setting to see it)? Do you measure any of the flyback derived B+ voltages that go to the video processing, tuner, Vertical Deflection, and other circuitry? Be very careful when poking around inside the elevision........there are dangerous and lethal shock hazards inside.........even when the set is unplugged!
Posted on Oct 06, 2005
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Posted on Jan 02, 2017
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