Question about RCA HD52W59 HDTV Projection Television

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TV shuts itself off???

I have a 52" RCA projection...HD52W67. Recently the convergence went out and me and a buddy searched for answers and fixed the problem...well sort of. Now the picture looks great again, however now the TV keeps shutting itself off after being on for a few minutes. The time the TV stays on is also getting shorter, it used to do about every hour, now it's down to about every 10-15 minutes. Please help...much appreciated!!!

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  • Anonymous Dec 09, 2008

    Where are these located and how do I identify them, Once again I have no electronics experience. Thank you.

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Hello ckholcomb,

This may be the shutdown circuit sensing a current overload, or any number of possible problems first lets start at your repair. Did you replace the convergence amps and the associated bias resistors? If you did, did you check to make sure you did not create any solder bridges while you were soldering the amps? Did you do an upgrade to your amplifiers i.e. STK329-110 to STK329-150? These questions are to find out if the amps could be the cause of your problem. There is also the slight chance that the amps themselves might be malfunctioning, even though they are working they might be drawing more current then they are suppose to. I would suggest that you put the old amps and the bias resistors back in and see if this takes care of your cut off problem, if it does I would purchase a new pair of amps and all new bias resistors and use those. "REMEMBER DO NOT USE THE CHEAP KNOCKOFF AMPLIFIERS!!" (This shouting is done for emphasis not anger). You may also want to check the IHVT (Integrated High Voltage Transformer) by doing a ring test, just to make sure there are no shorted turns in the IHVT.

I hope this helps,

Thank you,

Henry A. McKelvey

Posted on Sep 29, 2008

  • Henry McKelvey
    Henry McKelvey Dec 09, 2008

    Hello ckholcomb,

    Try checking CP150, CP140, and CP120 to see if they are defective (would look puffy)

    Thank you,

    Shuttle83
    http://www.electron-age-technologies-llc...


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1 Answer

It is like looking at 3d in all three colors. i


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

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....
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Here are some photos of convergence problems.

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Here is a quick test....

Using your original remote go-to the settings menu then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix

69189a5.pngCONVERGENCE SOLUTION

You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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