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

JVC I ART

I have a JVC rear projection that has red wavey line on the top and bottom of the screen but the mittle looks ok. Any ideals? Thanks Robert

ROBERT THRASH Apr 12, 2007

Can you help me with were they are in the tv. I have some tv skills be it has been awhile. I have been repairing IBM check sorters for 20 years but need some info of where these are in the tv. Thanks Robert

1 Answer

Duke

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1,284 Answers

You need to replace the convergence IC's. That is the most common issue with any CRT type projection TV.

Posted on Apr 07, 2007

Duke Apr 13, 2007

If you take off the front lower grill (4 screws 2 on each side and 2 more small screws behind the input door on front) then remove the panel which if I remember has 4 to 6 screws holding it. You will then see the convergence board with 2 STK392-110's or some variation of them on the convergence amplifier panel. You will have to check the associated resistors around the IC's as most likely some might be bad. If you replace one IC's you need to repalce both of them.

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JVC AV-56WP74 56 in. Rear Projection red projector is not showing images and big red line in tv

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You can find more details and solutions here on Fixya at the following link below. Or click HERE

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Here are some of the most common symptoms and example photos of a convergence problem

Screen looks 3D
Colors don't line up
One or more colors can't be adjusted when using the convergence menu.
Screen is bowed or warped.

Here are some photos of convergence problems.

Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

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http://servicemanuals.vstore.ca/

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Easyab

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