Question about JVC AV-56WP74 56" Rear Projection HDTV-Ready Television
If 3d looking it is a convergence problem--this model should use 2 of the STK-392-110 CONVERGENCE CHIPS---both and any bad resistors around them need to be replaced and the set adjusted.
Can you do this repair yourself if I tell you what is involved?
You can buy a pair of the chips for about 12 dollars plus shipping on Ebay---it does involve being able to get at them and soldering(each chip has 18 pins..)
Let me know if you think you can do it and I will tell you how to proceed--if you cannot do it I can tell you what to do to get it fixed--it is a fairly easy repair on the set you have.....
I am here to help and if you have any questions or need advice reply to this posting here and I will assist you.
REGARDS, SD TECH
Posted on Oct 04, 2009
There is a chip that frequently goes bad in these sets .. its a STK392-110 IC .. unfortunately its soldered in and has to be mounted on a heat sink .. that chip is responsible for "convergence" of the 3 colors on the screen .. when it goes bad the screen colors seperate ... its an expensive part from JVC but there are a lot less expensive substitutes .. the job of replacing that chip would be beyond most people .. unless you are handy with things like that ... you might also try a fan to keep the chip cool .. you might get a little more life out of it ...
Posted on Oct 04, 2009
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Posted on Jan 02, 2017
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