Question about RCA Scenium D40W20 40" Rear Projection HDTV
When the TV is plugged in there is a distinct chirpin noise. The TV will not display a picture or sound. The TV is an RCA projection TV (model P60921YX1). No repair activities have been taken at this time. the sound is okay . . . picture is fadding in and out . . . then no picture
The chirping sound is the power supply coming up then breaking down because there is a short somwhere in the high voltage. The most common fail in this area is the horizontal output is shorted ( 237470 ) but what cause this short could be simple cold solder joints or the High voltage transformer ( 239111 ) If you have noway to "ring" the flyback change both parts
Posted on Feb 14, 2008
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Posted on Jan 02, 2017
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