Question about JVC AV-56WP30 56" Rear Projection Television

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Picture quality can't get rid of red ghost lines across entire screen

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  • JVC Master
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You need to replace the two convergence Ics STK392-110 they are located on the small board up front. behind the speaker grille and access panel. You can get new ICs at the following link as well as free instructions on how to do the repair yourself and save several hundred dollars for a 30 minute repair. Here is the link.
http://servicemanuals.vstore.ca/

Posted on Apr 22, 2008

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6ya6ya
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Posted on Jan 02, 2017

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Tv fell off stand. tv has vertical rainbow lines on right side of screen. how do I get rid of the lines?


Color patches due to strong shock or vibration cannot be eliminated by anyway, to CRT type TVs. Gopakumar Gopalan Google

May 10, 2014 | Proscan Televison & Video

1 Answer

Red and blue ghosting,


The most likely cause is shorted convergence chips and possibly a few pico fuses.

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. 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,Pioneer2_bing.gif Hitachi,Mitsubishi,Zenith and others.
You can get a convergenece repair kit with 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 - 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

You can see some more examples and find a fix herebb0cf99.png http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Jul 12, 2009 | LG RU-52SZ51D 52" Rear Projection...

1 Answer

Convergence Problem RCA HD52W59


you need to test all cables then make shure it is not your tv.

Jun 20, 2008 | RCA HD52W59 HDTV Projection Television

2 Answers

Vertical color lines


Here is a picture of my TV problem, the green horizontal line is from the camera flash. thanks for the help.4d2ca33.jpg

Jan 15, 2008 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Diagonal lines and ghost images


You may have a bad flyback transformer (high voltage trans former). The lines you're seeing are retrace lines caused by the picture tube screen set too high. This is often caused by the screen control opening up. This control is part of the flyback.
Stargazer

Dec 02, 2007 | Proscan PS32500 32" TV

1 Answer

Red tint on the entire picture


Always try your extended warranty!.....Probable cause = bad
red tube. One adjustment may help---turn down red screen
control, located behind technician access panel in front of set.

Nov 04, 2007 | Mitsubishi WT-42311 42" Rear Projection...

1 Answer

Toshiba theatreview


sounds like vertical problem maybe bad solder connections on vertical ic check and get back to me

Nov 03, 2007 | Televison & Video

1 Answer

HV-175 LCD


Hello,

 

Picture quality problems (such as lines, fuzzy image, or wrong colors)

  1. Check the cables and connections: Make sure that cable connections are securely fastened to the connectors and try reaseating the connectors. If connecting a device using component cables, make sure all three color-coded cables are connected correctly into the corresponding connectors. Check the condition and length of the cables. Cables that are longer than 3 meters (10 feet), become more susceptible to promoting signal degredation (small dots "sparkling" on the screen and image ghosting). Cables that have been bent or pinched may also cause picture quality problems. Replace the cable or try a different cable type.
  2. Check the  display issue with  a different channel. Picture quality problems on a single channel or on all channels may be caused by the TV station signal (antenna) or the cable signal source.
  3. Make sure that the image quality issue is not coming from your source signal. For example: if the image quality issues occur while viewing TV , switch the source to a DVD player to see if the image quality problems go away. If selecting a different input source (using the remote control) causes the problem to go away, troubleshoot the source device causing the problem - adjust aerial antennas, call the cable company for assistance, and . If a picture quality problem occurs on all sources, the TV or its settings may be the cause of the problem. NOTE: Higher resolution TVs will make it much easier to view signal problems coming from source signals - especially TV signals. For example, if your TV cable company experiences heavy load on their system, you may be able to detect small miscolored squares that briefly scatter across the screen (macro-blocking). On a smaller standard TV, this type of quality problem is much less noticeable on a standard TV, but can become very annoying when viewed with greater detail.
  4. Try to Reset the TV ( LCD) quality options. Please look in to User Guide to make the TV to factory Defaults..
  5. Unplug the TV from its power source. With the power cord unplugged, press and hold the power button for five seconds. Turn on the TV . If the image quality problems still exists across all types of signal sources, the TV should be serviced.

I hope that this should resolve the issue. However, if the issue still persists then please contact LCD manufacturer for further more on the issue.

 

Bye.

Oct 17, 2007 | Proview HV-177 17 in. HD-Ready LCD...

2 Answers

Very fine red lines across srceen


It is an adjustment, but it's an adjustment you may not want to do. It's the red screen control. It's located behind the front panel so the entire front panel has to be removed in order to access it-which will expose you to hazardous voltages. if you like, I can post detailed instructions on how to get that front panel off, it's kinda tricky.

Jun 13, 2007 | Sony KP-51WS500 51" Rear Projection...

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