Question about Panasonic PT-51G42 51" Rear Projection Television

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Panasonic pt-51g42v i have a problem with the vertical on this tv it appears image is too big for the screen. i have read that the tech menu has some adjustments for this but how do i access the tech menu. i have called repair shop they said it would cost $250-$350 i can buy a new tv for less than $900 so i don't think i'll take it in. if i can't fix this myself i guess i'll trash this one. i want to try the adjustment or if i can find the pc board for the vertical i can replace it i have a service manual but doesn't really tell what each board controls. thanks for any help with this problem. and have a happy new year!

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You might have bad solder joints on the vertical output IC. I do not know where it is located in this set only that it will be mounted on a metal heat sink near three wires that have identical plugs which go to the deflection yokes on each crt tube. Sets vary as to placement of vertical IC. Solder joints should be easily seen if you have good eyes or use a magnifying glass. I do know that the vertical IC will be on the board that has the highvoltage transformer on it (has big red wire). You may have to unplug the board and turn it to the soldered side or just turn the entire chassis up 90 degrees to see the connections. If this is not the problem I don't know how to get into the service mode at this time.Hope this helps

Posted on Dec 28, 2007

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Posted on Jan 02, 2017

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