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I have a jvc av56wp74 recently roled in into another room and now the picture is soo fuzzy It,s not even watchable. I can see horizontal lines in all three colors on the screen and they are all out of line with each other. The tv was only moved 30 feet on a smooth floor to another room.

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  • JVC Master
  • 8,617 Answers

Check the wire connections that run from the convergence board to the small stand up (on Screen Convergence) board the plug may be loose

Posted on May 18, 2008

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I have a o3 jvc 56 in model number av56wp74. I have a horizontal blue line across the front of my screen. Do I need convergence kit or dlp lamp ? How much would each cost? And is it woth fixing?


The model listed is fairly easy to repair if a convergence issue.(DOES NOT USE A LAMP-HAS 3 PICTURE TUBES.

The entire front grill below the screen is held on by the two tiny screws at control door on front and more on either side at rear--with it free you can remove the grill.

Behind it is an inspection plate---the board with the metal heat sinks directly behind it up front is the convergence board.

Set uses two of the STK-392-110 CHIPS--cost of parts (chips etc) will be under 30 dollars total(Suburban Electronics is a good source)

The board will come out (if attempt this I can tell you what and how to get it out) chips each have 18 pins and are soldered in place.

Just so you know what the board looks like here is a photo of it removed from a set I fixed.

SD TECH
5_28_2012_5_28_44_pm.jpg

BACK VIEW AS SEEN FROM FRONT OF THE SET

May 28, 2012 | JVC Televison & Video

1 Answer

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 World.com,Tvrepairkits.com to buy a convergence kit to repair it ur self.The shop will cost u $300-350 for parts and labors.

May 05, 2010 | JVC AV-56WP74 56" Rear Projection...

1 Answer

There is no red in picture on model number av56wp74 jvc rear projection tv what's wrong with it?


Ur CRT red gun is dead.Must hire the repairman for this job.It require part is hard to find,and alot of work and electronics skills to do this job.

Mar 17, 2010 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Loud popping on jvc av56wp74


if the noise is from inside the tv in the back,the high voltage transformer that feeds the anode for the rgb tubes,28000volts probably is arcing.

May 23, 2009 | JVC AV-56WP74 56" Rear Projection...

1 Answer

What is really wrong with a jvc television? I heard the light bulb goes out ever three months, is that true? Barb


the AV56WP74 is a three CRT rear projection which has CRTs ( Picture Tubes) It doesnt have lamps or Bulbs

Apr 02, 2009 | JVC AV-56WP74 56" Rear Projection...

1 Answer

JVC av56wp74 IC CHIP


you can get the replacement STK392-110 Ics and the JVC convergence resistor kit #1 at the following link which has the complete step by step instructions with pictures so you can easially do it yourself. You will need the resistors also as JVC will definately blow one or two resistors minimum when the Ics fail. Heres the link.
http://servicemanuals.vstore.ca/

Feb 01, 2009 | Televison & Video

1 Answer

Toshiba 42 WH36 P REAR PROJECTION


You have a convergence problem. Need to replace convergence IC's.

Jun 02, 2008 | Toshiba 42H81 42" Rear Projection...

1 Answer

Horizontal Lines


The unit most likely has a short in the horizontal section and would require repair by a service center. Go here to find a JVC repair center in your area http://maps.jvc.com/cAscList/

Sep 18, 2006 | JVC AV-56WP74 56" Rear Projection...

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