Question about Philips Magnavox 51MP392H Rear Projection Television

2 Answers

Left top and right top of screen curled, bottom middle of screen has a hump to it

One day i turned my tv on and the colors were out of whack so i manually adjusted the convergence and the colors are fine however when watching a program like a baseball game the score that appears on the top of the screen is curled at each end and also any words that may be at the bottom middle of screen are raised up like a hump. Any ideas i mean tv is watchable however looks weird watching sometimes.

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  • pebblestorm Sep 25, 2008

    Thanks Tim for the info. yes i can solder and use a meter how delicate is this procedure and how do i not shock myself in the process. I do have some bench assembly experience but has been awhile though.

  • pebblestorm Sep 28, 2008

    Tim,

    According to the guest comment he may or may not have the same problem as me he has replaced both of the ic's and is now having another problem. could there be something else wrong if it is not those chips. curious.....

  • pebblestorm Nov 11, 2008

    Hi Tim sorry for lack of response in what is going on finally got set apart to some degree trying to find the ic's here is 2 pics is there an easy way of any kind to get at these things the right way if im making sense also when i do get the parts best way to desolder the old ones and resolder the new ones.

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2 Answers

I HAVE REPLACED BOTH ( STK392-110 ) AND NOT ANY BETTER STILL CURVED PICTURE NOW IT WONT LET ME ADJUST THE CONVERGENCE (( WHAT CAN BE WRONG ))????..THANKSS..

Posted on Sep 26, 2008

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Yes you need to repair the convergence circuit. If you know how to solder and use a meter this can be fixed easily by yourself. If you call a repairman to do it, it will run you $300-$500 depending on your area. Let me know if you can use a meter and solder and we can move forward with repairing you set.

Tim nolan

Posted on Sep 25, 2008

  • experttv
    experttv Sep 25, 2008

    You dont have to worry to much about shocking yourself in this one as long as its unpluged and you stay away from the power supply. In order to fix this one you will need to replace both STK392-110's and any open resistors there by them. IF you have trouble finding the burnt resistors (if there are any) you can post a picture of the circuit boards and i will show you where they are.

  • experttv
    experttv Sep 29, 2008

    There are a few more things that can cause this problem. You need to check the resistors that are infront of the stk's If you are in the back of the set looking in, the resistors im talking about are to left and in front of the stk's kinda in the corner of the circuit board. If you post a picture of the board I will circle what i need you to check.



    Thank

    Tim

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