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

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JVC AV-56WP74 my screen comes on perfect then the top left starts bowing down and then thin red lines squigle across the middle then it stops then it starts over and also shows doubles. i heard it was chips for convergence or replace the board. is this true, and is the part JVC SSB-5068A-M2-R P.W.Board Assy the right part to be easily changed and how difficult would it be to replace? thank you.

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There are two i.c chiyou have to replace they have to do with the conversion go to electronix.com you can both for 5 a piece plus 5 for shipping and handling so 20 dollars total you have to replace both of them

Posted on Apr 02, 2009

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


If the red line looks like a swoosh of red across the screen it may be the convergence Ic having an issue.

Jul 04, 2011 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Convergence problem


Hello,

Did you lock the adjustment into the TV's memory? This step is the most often missed. Please follow the directions on the Users manual or on the service manual on how to set your memory to hold the configuration.

Find the menu item on setting the convergence adjustment into memory (the menu should have an informational screen on this topic)

I hope this helps

Thank you,

Shuttle83

http://www.electron-age-technologies-llc.com

Mar 06, 2009 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Jvc 56wp74


sounds like a solder related issue on the convergence ICs. They are acessed through the front of the TV behind the speaker grille and then remove the small acess panel and you will see the convergence amp board with the two ICs on it.

Oct 26, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Red Convergence


all you gotta do is use the manual convergence if only the red is messed up

Jul 27, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

JVC AV-56WP74 56 in. Rear projection blurred image


Check that the 3 output plugs are in the right sockets (Red, Blue, Green) There is usually a felt pen colored mark on a white tape on the plug in wires. The Board sockets are marked Red, Green, Blue.

Easyab

Jun 20, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Convergence issue with blue


You need to replace the convergence Ics located up front behind the speaker grille numbers STK392-110 you can get replacements at the following link and they provide free tech support and instalation instructions with pictures. heres the link.
http://servicemanuals.vstore.ca/

May 06, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Me again


With the bow in it it's likely the convergence has failed... Where did you purchase the amps that you put in it? Did you use a good heat sink grease to mount them?? Did you really scrutinize the resistors in the feed and return circuits???
Bill

Mar 31, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Red Wavy lines running across the screen...


Yes - - that indicates one of your convergence amps have failed. That unit takes two STK392-110 Sanyo amps which I personally would replace with STK392-150's for greater reliability. Also check all of the return resistors in that circuit 1.5 ohm 2w and feed resistors 3.3 ohm 1w all are flameproof. You'll likely find that one or more of the return resistors are bad, with suspecting the red is the failed amp check in particular R846 for change in value or open.
Bill

Mar 24, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Blue shadow across my screen


Go into the convergence function from the menu and see if it works. If it does not then the convergence board has a problem. JVC still sells the part.

Jan 20, 2008 | JVC AV-56WP74 56" Rear Projection...

2 Answers

Screen is bowed (top and bottom) Color has a green and purple tint?


Your convergence has failed and needs to be repaired. Once quick test is to goto your convergence menu and see if you can adjust red and blue. If not its has failed and needs to be fixed. You can call in a repair shop or you can get the parts and instructions from www.TvRepairKits.com and do the repair yourself. Its a fairly easy DIY fix.
Here is an example video


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Jan 15, 2008 | JVC AV-56WP74 56" Rear Projection...

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