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

2 Answers

JVC 48WP34 Need help I have red bowing lines at the top and bottom of my screen that will not adjust. What can I do and how to do it I can not afford a costly repair.

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  • clim Feb 22, 2008

    my picture looks 3D.

  • Vager Mar 05, 2008



    Hi I've been having the same problem on my set, however this is the 3 time this has happened. The first 2 times it happend in my extended warranty coverage and now the 3 time in 6 years it's out of warranty. I feel kind of ripped off by a poor product made my JVC as I've seens hundreds of other people posting about the same issue.



    Here's a photo of what mine looks like now. As you can see the Red is all out of whack. Is this an easy fix as I've read you just have to replace the IC convergence chips. I have a few friends that may be able to do, just need to know what the schematic is for this TV and where and what IC chips I should buy.

    Thanks.



  • Anonymous Mar 27, 2008

    I have a JVC AV-48WP30 48in as well. Mine does not have the waves however, the right side when looking at the tv has the red overshadow. I was told I need to replace the convergence board. Where can I get this convergence board and a possible price.

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More than likely you need to replace your IC's on your convergence board. Im not entirely sure on this model, but it's probably STK392-110. There are a lot of people that recommend that you replace them with STK392-150 to ensure a longer life.

Posted on Mar 01, 2008

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Your convergence board needs repair

Posted on Oct 26, 2007

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1 Answer

I have a JVC AV-48WP34 48" TV and I have a serious convergence problem... how can I solve this myself.. if I can


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.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

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. Power light will blink. TV may also make a chirping noise.
Here are some photos of convergence problems.

42d3683.jpg

7859b01.jpg

e87380c.jpg
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. And you should be able to get the grid straight.

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 fix

69189a5.pngCONVERGENCE SOLUTION

You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Aug 13, 2010 | Televison & Video

1 Answer

Getting a 3d image picture and a bow at the top and bottom of screen what is it?


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.
This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

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. Power light will blink. TV may also make a chirping noise.

Here are some photos of convergence problems


a56fe79.jpg

6d0da0b.jpg

fcabb43.pngCONVERGENCE SOLUTION

You can see some more examples and find a fix using this link on Fixya - CLICK HERE

Feb 03, 2010 | Sony KP-57WS510 57" Rear Projection HDTV

1 Answer

Screen is bowed on top and bottom.


Projection sets have two very common problems outlined below.

The first common problem is convergence

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. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. The TV can also shut down when the convergence starts to fail.

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,Mitsubishi,Zenith, RCA and others.


You can more info and a DIY convergenece repair kit with instructions from TV Repair Kits using the link at the end of this article.

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

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped or bowed
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

bb0cf99.pngSOLUTION

You can see some more examples and find a fix using this link on Fixya

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Jul 13, 2009 | Samsung PCL5415R TV

2 Answers

JVC Model no: AV-48WP34 Projection Problems


OK, problem seems in convergence section of TV and can be confirmed by testing voltage supply as mentioned in schematics.

You can download service manual copy from Manual Zone for small fee and it has schematics, exploded views. board location, part numbers info.

Let me know if you need further help.
Thanks.


May 07, 2009 | JVC Televison & Video

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

Red bow on top and bottom of 61dx01b


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.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projeciton sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

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. Power light will blink. TV may also make a chirping noise.
Here are some photos of convergence problems.

42d3683.jpg

7859b01.jpg

e87380c.jpg
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. And you should be able to get the grid straight.

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 fix

69189a5.pngCONVERGENCE 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 are handy and can follow directions. You can get complete repair kits from TvRepairKits.com or click here. They have put together DIY repair kits that include the OEM parts and step by step photo instructions for each repair. If you are not handy or can't follow directions we would suggest calling a shop.

May 21, 2008 | Samsung PCL5415RB 54" Rear Projection...

4 Answers

JVC AV-48WP30 started displaying vertical lines every inch


it looks like theres a wave in the top of my screen on my jvc av-48wp30 not sure but i think it has something to do with the bulbs because the projection mirror wasfine and all wires seemed to be hooked up properly.. can you help? tell me where i can find the bulbs to replace them?

May 13, 2008 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Bowing red lines at top and bottom of screen


Try this, it might be just the thing:http://www.techlore.com/article/15929/Fixing-My-Own-TV/?textpage=3

Sep 19, 2007 | JVC AV-48WP30 48" Rear Projection...

3 Answers

JVC AV48WP34


I have a JVC AV-48WP30, and I had a lot of issues w/ red lines appearing on my screen. If your problem is like mine, then you have to find the video processor, which is a small, squarish metal box on the main board right behind where the a/v plugs are on the back, and jiggle it a little bit, maybe stick a zip tie on there. That always made my lines disappear.

Sep 11, 2007 | JVC AV-48WP30 48" Rear Projection...

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