Question about JVC AV-48WP30 48" Rear Projection Television

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Av-48wp30 I need help fixing this tv. set, i had change the two convergence ic. and the problem is there yet. red color is it ''blinking'' or jumping quickly around the other color, all resistors are good and i had solding all board, and nothing happen , please if u have any other solusion.......sincerely : Nilo

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  • nilo  perez
    nilo perez Jul 02, 2008

    Hi, thanks for u help. I'd. like to try that board, tell me how much will it cost and the for of payment,,,sincerelly, nilo.

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  • JVC Master
  • 8,617 Answers

If the convergence Ics and resistors are good its most likely related to the velocity boards that are attached to the Red CRT convergence yoke. Its the small board about half way up the neck of the CRT. If you need one let me know as I have a source for JVC boards for that model.

Posted on Jun 28, 2008

  • Sonny Berry
    Sonny Berry Jul 02, 2008

    Go to the following link and leave a email as I work there as a support tech. tell them I sent you and leave your model number and symptoms, they will give you a good price.Heres the link.

    http://servicemanuals.vstore.ca/

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2 Answers

The tv looks like it is in 3d. when i try to adjust the convergiance the plus signs on the left are bent


do not play with this tv replace the stk ic chips and the resistors around the stk chips ,cant miss em about 2 inches big with heat sinks on them.

Sep 11, 2010 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Jvc av-48wp30 blue to align convergence


Tv colors R,G,B don't alignment any colors.Tv have a convergence problems,it dead.Tv convergence board require changes 2 STK convergence ICS and some or all it resitors to solved convergence problems.The shop will cost u $300-350 for parts and labors.

Jul 11, 2010 | JVC AV-48WP30 48" Rear Projection...

1 Answer

JVC AV-48WP30 convergence drifting after IC replacement


These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the 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 wiith instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms
  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted or warped
  • No Audio/Video - makes a chirping sound.
Problem #2

Another common problem is dull or washed out video.
Your TV may have one or more of the following symptoms....
  • Dull looking picture
  • White looking picture
  • Halos around objects
  • Red/Orange looking picture

You can see some more examples and find a fix here
bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Mar 16, 2010 | JVC AV-48WP30 48" Rear Projection...

1 Answer

JVC TV Convergence 3-D Problem


This is not a reset problem. Either the solder connections on the convergence ICs are poor or the ICs themselves have beccome defective. If you cvan solder, try resoldering the pins on the convergence ICs. If that fails to resolve the problem, you will need to replace the ICs. These are large black ICs attached to a heat sink and should be marked STKxxx.

Dan

Nov 28, 2008 | JVC AV-48WP30 48" Rear Projection...

1 Answer

TV REPAIR


You need to change out the two convergence IC's STK392-110 and that will probably fix the problem, but you should really give more information so we can be sure. A picture would even help.

Oct 04, 2008 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Tv set 48 inches projector..[jvc]


replace 2 X convergence ICs and align. Maybe burnt resistors as well.

easyab@hotmail.com

Calgary

http://calgaryconvergencerepair.weebly.com/convergence-repair-explanation.html

Jun 16, 2008 | JVC AV-48WP30 48" Rear Projection...

1 Answer

JVC AV-48WP30 48 in. Rear... Problem


Your convergence I.C's ( integrated circuits ) Have failed. Replace Both I.C's with Stk392-150's. The unit is equipped with 110's. These are large IC's pn the convergence board located near the front of the unit. You need soldering/desoldering experience to do this job. I would recommend seeking professional assistance.

Jun 04, 2008 | JVC AV-48WP30 48" Rear Projection...

6 Answers

Suddenly, the screen shows double images on letters and numbers plus red/greenish like shadows on characters.


Youre convergence Ics need to be replaced. post the model number of your set and I will post the STK number that you need and a link where you can get new replacement ICs

May 25, 2008 | JVC AV-48WP30 48" Rear Projection...

1 Answer

JVC AV 48WP30 projection tv bleeding problem


You need two STK392-110 Convergence ICs. You can get repalcements at the following link, and they will provide free instalation instructions with picture so you can do the job yourself. Heres the link.
http://servicemanuals.vstore.ca/

May 24, 2008 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Convergence always needs tweaking


This sounds to me as if you have a defective convergence output IC, whose gain is now sensitive to heat. As the IC gets warm, the gain changes and you see the colors separate. If you do not want to do any soldering then have the IC replaced by someone with experience in convergence circuits.

Jun 24, 2007 | JVC AV-48WP30 48" Rear Projection...

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