Question about RCA D52W19 52" Rear Projection Television
My RCA will not power up. If you turn on with either remote or by hand, the green light comes on for a few seconds then goes off again. No picture at all. For the last month or so, it has been going off by itself occasionallly also. That was usually about 5 or 10 minutes after turning it on. Then if I waited a few minutes, I could turn it back on.
Opened up the back and vacuumed out all the caked on dust that was everywhere. I used an insulated brush to help remove the dust. Dust can kill heat dissipation. Open up the front and check for fluid under the CRT circuit boards. The one on the right (as you face your TV) is the blue one. For some reason, the diaphram for the glycerin in the blue optic is on the back side and leans down. It tends to leak and spill on to the circuit board below. Some symptoms I noticed: blue shadow, blinking blues, complete blue outage, unable to complete the autoconvergence, and arcing/sparking (from another post). I had to pull out the blue CRT, silconed the rubber gasket, refilled the fluid and repaired some solder joints where the fluid caused a short. Works like a champ now. Tell tale sign is the pool of fluid when you access the front chassis. Pull off the speaker grill and shine a flashlight on the inside underneath the CRT circuit boards and look for the fluid. Glycerin doesn't dry.
Posted on Dec 10, 2007
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Posted on Jan 02, 2017
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