Question about RCA MM52110 52" Rear Projection HDTV-Ready Television

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RCA mm52100 I'm sorry for the description(wacky). It is just as you described in the Fl231 post. Double image/color bleed (like a 3D movie without the glasses), with the screen bowing down on the top and up from the bottom. The only difference is it plays fine for about 15 min. first then like a light switch boom 3D screen with bowing. Power it down for 20 to 30 min and then fine for 15 min. I hope this helps, I used to repair NCR cash regs so I'm not spooked by it, just not sure what to do next. Thank you for the reply.

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  • Carter Bennett May 24, 2009

    You were right about it being a heat problem. I took the lower back panel off and laid a small 10 in by 10 in box fan blowing down on the components, and the TV has never messed up again. I know this is not a factory fix, but it works. For a TV that could not run 15 min. without going wacky, now it runs for 8 to 18 hours a day and never skips a beat.



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Ok thanks for the info Now this is an indication of convergence issues(3d effect) the bowing issue idicates a complete loss of convergence power. which possible could be the convergence ic or the actual power feeding them. im feeling like it might be the ic overheating these get very hot. now the bad news. this is a set that is very difficult to work on. Rca has compiled a long list of problems with this set. getting to the chips is a chore. i cannot recommend repairing this set. I know no one likes to hear this.

there are several rca issued suggestions. the top one isChange C19542 on the Digital Convergence PCB from a 10uF 63WVDC capacitor (214698) to a
470uF, 25WVDC capacitor part number 214746.
Also change the 24V zener diode CR19720 (226446) on the Convergence Power Supply board to a
30V 500 milliwatt zener diode, part number 231211 this
but as i said this may or may not be the best solution

Posted on Jan 15, 2009


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