Question about RCA D52W20 52" Rear Projection HDTV-Ready Television
The reasons can be many for a power failure, but check on:
1. start by checking the continuity from the plug to the main board.
2.Check the fuse on themain board, if fuse is blown check for shorted circuit. check on surge protector, rectifier, filter capacitor or the SM driver.
3. If the SM is not working then the oscillator IC can be faulty.
4. if the SM power supply works but the main board does not , check voltage to all circuits. check for pico fuses being open.
5. The microprocessor must work on the man board. if so the trigger or indiccation LED will light up.
If no trigger check mP then the drive stages of the projector.
Hope you follow on this advice.
Posted on Aug 26, 2010
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Posted on Jan 02, 2017
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