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

1 Answer

JVC AV-56WP74 projection TV green sagging and can not be adjusted out.

My JVC has the green sagging at the top of the screen and it can not be adjusted out with the Convergence adjustments.

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  • 4 more comments 
  • Jcmommy Nov 14, 2007

    My Jvc Tv is doing the same thing with the green sag!
    Is there anything I can do at home to fix it without paying high prices to fix the problem???????

  • Anonymous Dec 10, 2007

    Im having the same problem. Im wondering whats the estimated cost for this repair?

  • Tug2 Dec 14, 2007

    Same TV, Same problem! How much to fix? Should I just get a new one?

  • curtjake Dec 30, 2007

    Same problem but with a AV-65Wp74 model.

    adj.conv.

  • Anonymous May 18, 2008

    I have th e same problem, green sagging on my tv



  • d777morris Jul 04, 2008

    Same thing, but it is the red that is sagging. I've tried the auto and manual covergence. I can line up parts of the screen on manual convergence, but this skews the other parts of the screen. What is a ballpark idea to have a repair company fix this?

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  • 934 Answers

The convergence amps need to be replaced. If you're having a shop do this call around and ask what they charge for repairing the convergence. If you're doing this repair this set uses two stk392-110 Sanyo built amps. You will also need to test and possibly replace one or more of the 1.5 ohm feed resistors in that circuit.
If you're doing this at component level try Acme in Florida for amps and resistors: 1-800-575-9833 http://www.acme-sales.net/index.shtml and if you're doing this at modular level send it to PTS http://www.ptscorp.com/ 1-800-844-7871
Good luck!
Bill

Posted on Nov 27, 2007

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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 56 inch projection AV-56WP74 red color not aligned


I have the same tv set and about 4months ago Ihad the IC STK392-110 replaced. I was told that it was the most common problem with proj. tvs. It did solve the probem until last night when I went into the menu to change a audio setting and stupiditely accesed the convergence setting and decided to do an auto adjustment which mesed up my beutiful HD picture. Now I have the red out of alignment ad even after I did a reset and multiple manual adjustmets it is still off at the top and bottom af my screen.

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

1 Answer

TV Has no pitcher


you could have a shorted tube Green disconnect CRT board from green tube if set stays on tube is shorted also check video ic on crt board.

Dec 07, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Jvc projection tv


try this site http://www.sharefx.net/index.php

Jul 16, 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

RED AND GREEN DOUBLE AND BLUR PICTURE HELP PLEASE


You have a convergence problem. Components are shorted out and must be replaced. Unless you're a technician, there's really nothing you can do at this point.

C-Dog

Feb 03, 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...

1 Answer

Magnovox big screen hdtv


http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Jan 13, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Green screen


If the TV works ok using the component,composite and tuner inputs otherwise then the HDMI module is bad.

Nov 25, 2007 | JVC AV-56WP74 56" Rear Projection...

1 Answer

RED BULB(LENS) PROBLEM...AND QUESTION?


no, dont need to replace all 3, adjust g2 to compensate, along with drives and cutoffs

Jun 27, 2007 | JVC AV-56WP74 56" Rear Projection...

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