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Re: Convergence problems on AV-48WP30

Eric Posted May 28, 2005, in response to:Mark Venable

Excellent diagnosis by Carlos. IC804 controls red convergence. But in time IC805 will also fail as well. Replace them both with STK392-110. Also, check for cold solder joints in the vicinity of these ICs. If you want a schematic for this unit e-mail me. Eric

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72 comments, pages:   « 1 2 3 4 5 6 7 8 »

    Hi, may I get the instructions/part #s/etc. for this fix as well? Thanks. JB

    Comment 1, Last comment by james Mar 25, 2008

    HI ERIC, I WAS READING YOUR INFO ON THIS FORUM. IF YOU STILL CAN, I WILL TAKE YOU UP ON YOUR OFFER OF E-MAILING ME THE SCHEMATIC FOR THE SUBJECT T.V. I ALSO HAVE A CONVERGENCE ISSUE. I CANT ADJUST THE BLUE UP OR DOWN, HOWEVER, IT WILL ADJUST LEFT AND RIGHT. PLEASE E-MAIL BACK IF YOU CAN ASSIST. THANKS IN ADVANCE.

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    nedd info on convergance and service man

    Comment 1, Last comment by Rob Mar 09, 2008

    hey eric i ordered the parts and had them installed but i can not adjust the green aspect i have blue and red down but the green just seems over powering if u have any advice i would love the input? anthony

    Comment 1, Last comment by James Feb 28, 2008

    can you send me the scematic for replacing this circiut please .

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    Eric: have been reading about all the convergence problems with the JVC AV-48WP30. Unfortunately after 4 years the red convergence problem on mine has appeared. Can you please email me the schematics for the affected area so I can replace the STK chips and any affected resisters etc. Thanks and regards: Malcolm

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    i have this same JVC TV and the red convergence is out! dips on top and bottom of screen. Can i fix this my self? Do you have a diagram for me? i was told i should change both (2) convergence chips .Anything else, and do i just take off the back! thanks josef

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    Hi, my problem seems to be a little worse. I have no experience with tv's but a little with computers. my convergence was off for about 3 months, but i was able to fix it.After three months the, the screen completely went out with different color lines. I have narrowed the problem down to what i think is the convergence board. The screen completely going out happens every time we leave the tv off for more than an hour and i am able to fix it by wiggling this board(kinda stupid but it works). Thanks

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    Hi, I cannot line up the Green convergence X's in the 1 2 and 9 postion, In fact the top left screen is twisted. Any clues would be greatly appreciated. Thankyou

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    I have the same problem, can you also email the schematic to me? Thanks.

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