Question about RCA D52W20 52" Rear Projection HDTV-Ready Television
I had the same problem with the three blinking lights. I removed the AV cover like in the previous post. I blew all the dust out and gently wiggled all the wires I could get my hands on and viola! It's working again. It's been fine for a week now and it was actually to the point where it wouldn't even power up before I cleaned it out.
Posted on Jun 06, 2007
After some poking around on the net I happened across a post with two techs talking about troubleshooting this problem. One had pinpointed an area to test (a little beyond the mere mortal thing to do) In any case I found the area and connector they were discussing. To fix my TV that had this same 3-cycle problem, all I did was pull the AV cover panel off and on the leftmost side you'll see a beige board on the left, green on the right. I blew compressed air in the left side between the heatsinks (tall aluminum structures). I then pulled, cleaned, and replaced the closest white ribbon connector between the boards. Afterwards I dry-wiped the bottom of the beige board in about a 2-inch area surrounding the heatsinks/ribbon connector. I plugged in the TV and it's been working for days now. The post had discussed a voltage drop due to resistance in that area so I speculated either a dirty contact or something had gotten on the boards in such a manner as to increase the resistance. My guess paid off. I realize it's probably the lowest-tech fix ever but for now saved me a ton on a repair.
Posted on Apr 14, 2007
Usually a shorted audio IC will cause this symptom. If not that than possibly a shorted diode or component in the deflection circuits. The set should be worth repair if the picture quality was very good before going out.
Posted on Jan 28, 2007
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