Question about RCA Scenium D40W20 40" Rear Projection HDTV
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Posted on Jan 02, 2017
SOURCE: My RCA Scenium 52" tv
You have bad grounds on the power board. The first place are the solder connections under neath the flyback transformer. This is my first area of inspections. You must really, really inspect the rest of the board. This TV has many poor solder connections too numerous to pin point. These are very small and will take an extremely close inspection. I cannot say enough here. Look for bad solder grounds on the vertical IC (do not use excess solder or you will short this IC). Look for solder connections on transistors, diodes, jumpers, power resistors and capacitors. Capacitors include electrolytic, disks and safety capacitors.Resolder other transformers too. Be sure to check close for bad solder connections on the heat sinks as well. Next, use an ESR meter to check all your electrolytic capacitors.This is a good place to start repairs. Thanks for asking and show a few hands of support!
Posted on Feb 08, 2011
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