Question about JVC AV-56WP74 56" Rear Projection HDTV-Ready Television

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I have a JVC AV-56WP74 Rear Projection HDTV Ready Television...I had a problem with the convergence with dual pictures on screen...I replaced the convergence card with 110's.....This fixed the screen problem but I have one line color that is not able to be set....is the 110 a bad choice....is one of the convergence card bad?

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  • SD Tech
    SD Tech May 11, 2010

    Did you check the resistors around the 110 chips? Look closely at all of them--if even one is discolored or bad you will have problems--The STK-392-110 CHIPS are fine--if you wanted to upgrade the quality you could use a STK-392-150---BUT the 110 chip should last several years--It is possible you installed a new bad chip--does not happen often but is possible---my bet would be one of the resistors in front of one of the chips is gone---Also when you adjusted this set did you do it in the customer or tech menu?

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  • JVC Master
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The STK392-110 are the stock ICs for your JVC. Chances are one or more of the feed resistors are bad. JVC TVs will usually have at least one bad resistor when the original ICs fail

Posted on Sep 07, 2009

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