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

2 Answers

FL231 Fuse Post

My TV seems to suffer from the fuse description you posted. The only diff. with my set is it will play for about 15 min just fine before the screen goes wacky. Mine is an RCA MM52100 in the main menu under SCREEN, ADJUST PROJECTION TV, there is three convergence options AUTO, RED, BLUE.
Do you still think I have this problem, and if so why will it play for 15 min?

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  • Carter Bennett Jan 15, 2009

    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.

  • 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

  • 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


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The fl231 problem is unique to the rca itc222 chasis the model mm52100 is not this chasis. wackey? describe the picture. You may have a solder problem or a compnent overheating.

Posted on Jan 15, 2009

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RCA TV Model No. MM52110. Green light comes on, however TV does not. (No audio or video signal) Using remote button when pressed only a click, click sounds is heard. Can't find fuse location. Removed back and cleaned out dust. Same results occured.

Posted on Oct 21, 2009

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1 Answer

Does the rca 52950 have the fl231 fuse? If so where is it located? If not which fuse controls the convergence. I fixed my newer model tv with the fl231 fuse but I dont see it in this tv.

no the fl231 fuse is only for model itc222 rca's . these older set unfortunately do not have that fuse convergence is contolled by a sepreated cuircit board. also these set have no stk ics that are common for most set that control convergence. it uses a series off transistors.

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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

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So the set is completley without convergence? bowed and the 3d effect.]
There is a small brown rectangular fuse fl231> it is common for this to blow due to poor solder conections on what is known as the flyback. IF this is your problem then it not a difficult repair. i do them all the time at the shop in about 15 min. Getting the fuse is the most difficult thing.

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