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

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Jvc av56wp74 rear projection tv

I think i have a convergence problem. the screen seems like it has double vision and the auto convergence doesn't help any. when i try to manually converge it the red and blue lines come together but the green seems off center and wavy. i've called some repair places but the average estimates are 300-400 dollars. i need help

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  • ak_vader May 05, 2008

    I have same problem but mine is the blue thats messed up.  When you use the link below my blue looks exactly bowed in like the blue lines in the picture doing the convergance.  Bought a relacment Convergence out PWB (ssb-5068a-m2) from a JVC service center and it didnt change a thing.  What else could cause the blue to be bowed at top and bottom like that?  When i try to manually converge it i can move all red and green both sideways and up and down, however the blue only lets me move it left and right i can not move it up and down at all.  And it's off pretty far in the center top and bottom but close to aligned at the edges.  Any ideas?



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Posted on Jan 18, 2008


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I have a jvc av56wp74 double immages in red and

Ur tv have convergence problems,it dead.U must have soldering tools and know how to solders to fix the convergence problems.U must replaced 2 STK convergence ICS,and some or all it resistors.Tries websites like Tv repair, to buy a convergence kit to repair it ur self.The shop will cost u $300-350 for parts and labors.

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1 Answer

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This television set, as well as most rear-projections, is prone to convergence driver problems. There are two large chips (STK392-110's) in the TV that need to be replaced, as well as some resistors that are likely damaged as well. Any competent TV repair shops should be able to repair this TV for 200-300 dollars. It is important to note that if the back of the TV is taken off without the proper prep., the Digital input (DVI) will be disabled permanently.

Hope this helps you...

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1 Answer

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Repalce the Two STK392-110 Convergence ICs. You can get replacements at the following link with free instructions.

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If you do not have hand soldering skills or know how to use a multimeter, I would suggest to replace the whole assembly.
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