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I HAVE A RCA 27F634T PICTURE IS CLEAR EXCEPT ANY VERTICAL IS CONCAVED TOWARD THE CENTER "EXAMPLE IF YOU ARE LOOKING AT A GOAL POST THE UPRIGHTS ARE BOWED IN. THIS DOESN'T HAPPEN ON ANIMATED SHOWS. HOW CAN I FIX THIS OR IS IT EVEN WORTH FIXING

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You have a horizontal issue with the unit and it is either in the HV supply area or the eprom may be corrupted.

Posted on May 14, 2008

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I have an rca model hd52w67 tv and there is a problem with the picture. the picture has a red and green picture that don't allign by about an inch. I think it is in the picture guns but i cant find a...


Do not align the guns! they are located facing up toward the mirror; they are picture tubes! covered with big glass lenses! heavy!
instead look for a red/green/blue adjustment knob on the set's front; the buttons should say: convergence or, crosshatch push the crosshatch button: once you have three vertical lines crossing three horizontal lines; just merge them using the other R/G/B knobs untill you have one white vertical line and, one horizontal line crossing in the center of the screen.
(you may have to find the controls on the remote using "setup")

Feb 11, 2010 | RCA Projection Televisions

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Sony KP-51WS510 the picture is blurry, except for the center of the picture and the picture looks concaved. Sometimes it looks as if the picture is in 3D. Is this worth fixing?


You have a convergence problem very typical of rear projection tv's. This set has (2) STK392-560 IC's and there may also be a resistor or two that needs to be replaced.
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I have found that on this set you need to check the pico fuses on the power supply board (there are two located parallel to each other) and on the convergence board (underneath the aluminum heat sink where the IC's are mounted).

Nov 29, 2009 | Sony KP-51WS510 51" Rear Projection...

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52" rca rear projection


the picture is bent inward and shadow looking sides are cut off.

Aug 10, 2009 | RCA D52130 52" Rear Projection Television

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Screen has double images on both sides, picture looks concaved. tv goes back and forth in this mode from normal to concaved


IC chips are Failing, and or A few Resistors in the Convergence circuit. Commen problem for Projection sets!... OneGeo.

Jul 06, 2009 | RCA D52W20 52" Rear Projection HDTV-Ready...

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My RCA projection TV - the picture only shows red green and yellow and the picture is distorted almost concaved. It overlaps and nothing is clear. All 3 bulbs seem to be working. No idea what is wrong.


Sounds like convergence problems. This TV may not have the standard "STK.." modules. These sets are bad to lose voltage feeding the convergence amplifiers.

Mar 31, 2009 | RCA P52926 52" Rear Projection Television

1 Answer

Concaved screen image, no response on vertical blue converge


I've read some similar problems that tend to indicate that it is a convergence chip problem, so i ordered a convergence kit. I will update you as soon as I get it fixed. Thanks

Mar 22, 2009 | Philips Projection Televisions

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Picture looks like 3D without 3D glasses on???


The cost I don't know, but this can be fixed. I'd say shop around a bit. Make sure the repair person is certified for your TV's manufacturer. There are generally 3 lamps in projection T.V.'s, Red, Green, and Blue. They have to be aligned for the TV to project a clear picture. A credible TV repairman should be able to fix it. Depending on if it's new enough to be under warranty they may cover it as well. Really the only reason to get rid of it is if you want to get a new TV anyway. Depends on the cost of having the lamps aligned.

Dec 30, 2008 | RCA HD52W59 HDTV Projection Television

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RCA P46770CK


Check Cr4503 in the vertical circuit for short or leaking. The convergence circuit is most likely fine. Also check for any leaky electrolytic caps in the 500 block. (example) CR4503 will be printed on the PCB as CR503. The vertical circuit is located in the center of the chassis behind the big aluminum heat sink.

Nov 01, 2007 | RCA P46810LV 46" Rear Projection...

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