Question about RCA P46924 46" Rear Projection Television

1 Answer

Picture conversion I need help on the picture on my rca. first it went out one day and I got to looking in the back and it was the fuse, so I replaced the fuse and now it turns on, but the picture is bowed and there is a bad three color thing going on. I called someone and they said it was probably the power supply. now I'm needing another opinion. could you please tell me what the problem is?

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  • lougan Harrelson Jul 22, 2007

    Chassis # PTK195MA
    Model # P46924

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1 Answer

Hi,you have a bad convergence board.Try calling a tv parts house to buy one .They cost about $120.

Posted on Jul 22, 2007

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problem in the powersupply boards is get it replaced it will work properly for sure.

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Best thing to start here is open up the TV and look for any blown components on the power board (which is the one that has the power cable attached to); check the transformer for continuity first, that is the first thing to blow. Then go on with capacitors, resisters, and any burnt wires.

All of these parts are easy to find and replace, they can be found in local electronics shops.

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These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

Convergence problems are very common on all Projection TV sets including Sony,Samsung, JVC, Philip Magnavox, Panasonic, Akai, Pioneer, Hitachi, Zenith, and others. You can get a convergenece repair kit wiith instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms
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Problem #2

Another common problem is dull or washed out video.
Your TV may have one or more of the following symptoms....
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You can see some more examples and find a fix here
bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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2 Answers

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Try removing the Green CRt PC voard that is on the bottom of the green Picture tube which is the center one. Then replace the fuse and see if your set powers up if it does you need a new gree tube. Just be sure the crt board doesnt touch anything while you try it. then let me know what happened, if you need a tube they arent available new any longer but I have a source for good used picture tubes,

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Conversion problem most likely. Do your conversion controls work both colors in all 4 directions.

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RCA 52" Big Screen TV model;P52920BL Chassis;PTK195KB PICTURE BOWED AFTER FUSE BLOWN.


You have bad convergence IC's.. If your not experienced in troubleshooting electronics or soldering, you should have a trained tech take a gander at the set. Its not worth risking life and limb to save a few bucks, Good Luck

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