Question about Panasonic PT-53WX53 53" Rear Projection HDTV-Ready Television

1 Answer

PT 53WX53 lost convergenge on right side of TV blue shifted left

While watching TV the other day, the right half of my TV had the blue shift to the left. I went in to adjust convergence and found that I was only able to adjust the left and center points on the TV and not the 3 points to the far right. The blue just won't go far enough to the right to align now. After some searches on the internet and other writeups here, I am ordering STK392-110 (2) and will try a replace to see if it works. If anyone knows of another reason this could be happening on only the right half, I would love to hear your thoughts. I will post back after the repair and give results.
Thanks....

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  • scinaz Dec 02, 2008

    William,

    Thanks for the advice. I started the repair and on 6th pin didn't have solder hot enough I guess, so ended up pulling off most of the pin pad on board. Thought it was trashed at that point, so packed it up and stuck in garage. Bought a new TV and then decided to try the rest of the repair since nothing to loose. Got the rest of pins cut and out of board, unfortunately nicked coating on 2 resistors near amps. Put everything back together and after making some convergence adjustments have a relatively new TV again - makes for a nice spare room TV as I am not sure how long the patch to pin pad area and nicked resistors will last in unit.


    Thanks to FIXYA, I was able to replace both amps (used -150 series), including purchase of new solder iron and other consumables, service manual (just in case) for under $70.

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  • 934 Answers

Scinaz,
Make sure you order genuine Sanyo replacements, there are a lot of fakes out there that will short in less than an hour in that unit... You can use stk392-150 or 180's also, same chip-set just greater amp rating. You're replacing Ic's 7001 & 7002...
Use a generous portion of heat sink compound as well and don't let your solder pen sit for any length of time on any one pin. You might also solder a couple of pins and pause to let heat dissipate before continuing...
Best place for ordering those amps is ACME sales in Florida...
Lastly, you might check the ohms rating of the 1w resistors out in front of the amps. Those are your yoke return resistors and change any that are out of value by more than 10%...
Good Luck!
Bill

William Rayburn, CET
Premium Technologies
PO Box 442
Long Beach, WA. 98631
360-642-4993
premtech@willapabay.org

Posted on Nov 13, 2008

  • William Rayburn
    William Rayburn Dec 02, 2008

    Great, glad to hear you got it.. Nicking the coating on a resistor isn't too bad maybe you need a bit more defined soldering stick.

    Removing or lifting some of the foil isn't a too bad - most of us simply make a fine wire connection between what's left and the component. You need to scratch off the coating on the surface of the foil to get a good solder point but it's just as reliable if it's done right.

    Take Care!

    Bill

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