Question about RCA P52926 52" Rear Projection Television

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Problem With Colors

RCA 92526 Rear projection 52"
The Colors on my TV went out today, they are all offset and overlapping, and the middle of the tv is bowing towards the middle, top and bottom... makes it compeletly unwatchable....

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  • PUNKO1 Feb 15, 2008

    RCA HD52W59 COLOR AND HOUR GLASS PICTURE

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You need to re-solder the circuit board that contains the STK convergence modules. They're on the center circuit board attached to an aluminum heat sink that's about 8" long and 6" tall, about dead center in the circuit board. You may be able to recreate the problem (hour glass effect) by gently moving the heat sink (which the modules are connected to). This gives the hour glass effect on the picture and the advanced convergence screen. This is an indication that the modules pins aren't solidly connected (meaning soldered) properly. Remove the circuit board and clean the old solder off & resolder the modules pins to the circuit board reconnected the board and then retest by again pushing on the heat sink. This is a caused by a minimum effort (a.k.a. minimum cost) solder job, probably done in some 3rd world sweat shop. The "factory" job was good enough for 3-4 years but the heat (and these modules do create a lot of heat) and stress created from repeated use eventually takes it's toll, weakens the pin connections and our problem occurs. take the appropriate cautions working around the high voltage of the set & use a non-conduting piece of wood to push the heat sink when we doing tests.
If this doesn't work, the modules need replacing.
Best of luck, hope ya fix it.

Posted on Feb 01, 2008

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