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

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My tv is all mad cow

I think there is a problem with the convergence thing but i try to use the manual reset and i cant allign all the boxes.

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Re: my tv is all mad cow

If your convergance amps are dying, nothing you do in the manual converge menu is going to work. And in fact, it can actually lead to more issues...

Posted on Nov 21, 2007

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Got new STK392-040 chips and picture is still distorted. Manual convergence still won't alligne all colors.

the 183 is entry into the tech menu===you need to test all the low value resistors around the convergence chips(only 6 or 8) and they will read low and a resistor with NO reading may be your problem.

Also these sets use a pico fuse going to each chip--either right with it or back at the source----know what a pico fuse looks like"

Mar 12, 2012 | Samsung HCM4216W 42" Rear Projection...

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50FX20B- I am trying to allign the digital array and cant get the red to move,how do I move it? (the blue WILL move)

Please replace convergence output chips in tv to solve the problem. It requires good soldering skills/ expertise and click to buy convergence repair kit for this tv that has all required parts and instructions.
Hope this will help.

Jun 11, 2011 | Hitachi 50FX20B 50" Rear Projection...

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The colors are unalligned and the picture is blurry

hello,,the deffective part of your tv probably the convergience ic,it is a 2 pcs big ic with heatsink mounted on the mainboard you can replace it with a new one..or try to adjust first the allignment of your cathodes the RGB cathodes..on your front pannel there is a convergeance manual allignment button use this button to allign the convergeance..on your remote control there is also an allignment command consult your manual for the command .after the adjustment you must save the adjustments before exit the convergeance adjust..if thris adjustment do not work replace the convergeance ic ..mostly the ic is labeled STK XXXX..

GOODLUCK i hope i this helps you..

please rate my help tnx.

May 29, 2010 | Philips 51PW9303 51" Rear Projection...

1 Answer

RCA hd52w67 analog convergence problem.

with Tv off press and hold ch- and vol- at same time untill tv turns on then release and you should be in factory settings service mode.

May 26, 2010 | Projection Televisions

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My hitachi tv's picture is distorted red and green like a 3-d pic

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

Convergence problems are very common on all Projection TV sets including Sony, Samsung, JVC, Philip Magnavox, Panasonic, Akai, Pioneer, Hitachi, Zenith, and others. You can get a convergenece repair kit from the link below.

Common Symptoms include....
  • 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.
  • TV shuts off after powering on - TV may also make a chirping noise.
Here are some photos of convergence problems.


Here is a quick test....

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

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right.

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

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a solution


You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you know what you are doing. If you have never done this before we would advise calling a shop or if you want to do it yourself get a complete kit with instructions and support from

Feb 08, 2010 | Hitachi 57F710 TV

1 Answer

Convergance wont allign on 50" panasonic

Must replaced the 2 convergence ICS,and all it resistors.Must know how to solders.Tries Tv repair, to buy a convergence kit to repair it ur self.The shop will cost u $300 for parts,and lobors.

Jan 16, 2010 | Philips 46PP9302 46" Rear Projection...

1 Answer

I have a convergence problem on my Mitsubishi VS-55601

ICS with some resisters,tries these websites Tv rpair or Tv repair kits.

Nov 02, 2009 | Mitsubishi VS-55601 55" Rear Projection...

1 Answer

I have a red and blue shadow in my picture

i think you need a new convergence board they rin from about 88.00 to about 140.00

Sep 08, 2008 | Akai PT5598HD 55" Rear Projection...

1 Answer

Red and white allignment

you need new convergence Ics. This is a easy repair. let me know your model number of your TV and I will post the Convergence ICs numbers and also post a link where you can get new Ics that come with free installation instructions with pictures and free on line tech support.

Apr 23, 2008 | Projection Televisions

1 Answer

Replaced bulb and converge problems

After replacing a Picture tube convergence/geometry allignments can be quite extensive and if they're not fairly precise the sensors for the auto conv. can not be calibrated therefore your auto conv. not working as you described. The key is usually the geometry start with the green lines and get them as square as you can then align the red/blue. Since the auto is not going to blue that often means the blue is to far out and the sensors are not picking it up.

Apr 21, 2007 | Samsung HCM4216W 42" Rear Projection...

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