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

1 Answer

Red lines won't line up

We noticed the pic was sorta whopper-jawed and my son found the adjustment screen. The blue and green lines will line up to make white, but the red lines are wavy in some areas and you cn't get the cursor to move to try and fix it.

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  • Anonymous Dec 15, 2008

    our screen looks 3d. when i go to adjust the convergence, the red cursor will only move up and down it will not go right or left.

  • kheadrick Dec 28, 2008

    while watching my tv there was a load pop then the screen went black. It came on agian after a few seconds but the color lines were not lined up. I can adjust the lines but they will not stay.

  • leeger Jan 18, 2009

    I have a distorted convergence on the top left and the bottom right. I can line up the middle but the top and bottom won't line up on the red. The blue appears to line up and seems to be ok. It started this when I turned it on a couple days ago. The TV dropped off a 1" ledge it sits on recently but seemed to be ok at the time. Is this explaination enough to determine a problem? Thanks.

  • spiceyct Feb 07, 2009

    We are having the same problem. On the left side of the screen, the red crunches way in toward the center. On the right side of the screen, the red stretches to the outside. The blue and green are lined up fine.

  • Richard Lowen Apr 28, 2009

    I have a JVC AV-48WP30 REAR PROJECTION. THE RED LINES ON MY SCREEN ARE TO MUCH. I HAVE CHANGED THE RED BULB AND ADDJUSTED THE RED,BLUE,AND GREEN LIGHT TO WHERE YOU CAN VIEW THE TV BUT IT IS STILL NOT RIGHT. I WAS TOLD TO CHANGE THE STK392-110. BUT IN ONE OF YOUR BLOGS A TECH SAID TO REPLASE IT PATR FOR PART. NO UPGREAD ? IS A 116, OR 118 AND I HAVE SEEN A 120 ? WITHC ONE TO USE.

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  • 106 Answers

The problem is your convergence IC's. They can be found behind the front speaker grille. The will part number STK392-110. You may see a burnt resistor beside then also. If not experienced, it may be best to have a qualified tech look at it. Please take the time to rate this solution and if I can be of further assistance let me know

Posted on Dec 13, 2008

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1 Answer

The figures on the screen have blue outline


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.
Below are two of the most common problems encountered with projection TV sets.

Problem #1 - CONVERGENCE PROBLEM

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 Projection TV sets and a fairly simple DIY fix.

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

CONVERGENCE SOLUTIONYou 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 TvRepairKits.com

Their kits include a step by step instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

Problem #2 CRT Fluid is Cloudy

Projection tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around video.

Pic of a set that needs the fluid changed. Notice how dull the colors are and how white the screen looks. The screen may also look red, orange, dull, etc.

BEFORE



Set after fluid change. Notice how bright the colors are now. Everthing looks crisp and sharp again.

AFTER





Solution #2 - CRT FLUID FIX


Feb 01, 2013 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

Sorta looks like 3d red&green mostly also has red lines arching across bottom 1/2 of screen


ll projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both.

Common Problem #1) Convergence has gone out

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 pics of convergence problems.


7859b01.jpg

e87380c.jpg

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change

65af323.jpg

69189a5.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

Jan 14, 2011 | Zenith R57W46 57" Rear Projection...

1 Answer

My sony projection kp57ws500 has arched green lines at top. Doesn't look like the green is lined up with the rest of the colors.


Below are two of the most common problems encountered with projection TV sets.

Problem #1 - CONVERGENCE PROBLEM

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.

49abec3.jpg
f0add3d.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.

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

93a1209.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 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 TvRepairKits.com

Their kits include a step by step instruction guide, original OEM Sanyo2_bing.gif STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

Problem #2 CRT Fluid is Cloudy

Projection tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around video.

Pic of a set that needs the fluid changed. Notice how dull the colors are and how white the screen looks. The screen may also look red, orange, dull, etc.

BEFORE

452f0a0.jpg

Set after fluid change. Notice how bright the colors are now. Everthing looks crisp and sharp again.

AFTER

e548800.jpg


93a1209.pngSolution #2 - CRT FLUID FIX


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from TvRepairKits.com . It includes replacement coolant,step by step instructions, support, etc.

Mar 17, 2010 | Sony Televison & Video

1 Answer

The tv is showing red lines on the screen.


These are retrace lines. The screen on the red tube is turned up too high. Inside the set there are 6 knobs. 3 for focus & 3 for screen. Turn down the red screen until lines are gone. These knobs are usually found by pulling of the front panel.

Apr 06, 2009 | Televison & Video

1 Answer

I have a KP-65WV700 and the screen looks a lil to green


OK, I'm the guy that was having the same problem, but had a blue tint to the screen. I also had blue lines running across the screen, and when I followed the steps below that were posted by another user not only did the lines disappear, but the blue haze vanished as well. My tv looks like it's new again, so you may want to try this:

noavatar_s.gif Guest
Rank:nonexpert_s.gif Apprentice
Rating: 0%, 0 votes
I have fixed this several times on my KP 65WV700

As Slinteriors posted if it is a thin curved line you need to adjust the screen control, it's sorta like a brightness for each color, and if one color is too high it will produce a thin curved line.

The best way I have found to get to the controls is by removing the lower grey speaker cover front the front of the TV. There are 6 screws if i remember, 3 on each side. Then it snaps off, seems like its going to break but you have to pop it off pretty good.

Once its loose you have to remove a cardboard like cover plate in the center that will give you access to the small controller board.

Now be very careful while experimenting on which knob controls which colors. Turn them very slow, if you turn to fast you will cause your TV to shut down. If this happens, turn the adjustment back to original spot and turn TV back on and take it slow.

Adjust the correct color until the line just goes away. Its easiest to do this with a black screen.

Nov 18, 2008 | Sony KP-65WV700 65" Rear Projection HDTV

3 Answers

Sony kp-65wv700


I followed GuestUser/ Slinteriors advice and I fixed it. Open the front of the TV and there are 6 little nobs in the front. The botton 3 are what you need to adjust. from left to right the color controls are BLUE, RED GREEN. For the blue lines, slightly (I really mean very slightly) turn the botton left nob clockwise (right).

Mar 21, 2008 | Sony KP-65WV700 65" Rear Projection HDTV

1 Answer

KDF 42 Sony Wega


I got this TV for FREE from a guy posting it on craigslist because he saw "BLUE SWIRL LINES" also knows as "Retrace Line" on the screen and he went to several repair people and got high repair costs so he was giving it away for free, but i found a guide that tells you how to adjust the tv to make the blue or green or red lines go away, aparantly the line show up because the voltage on the color ray gun tubes that get out of adjustment. Here is the Link to the REPAIR GUIDE. http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

Nov 08, 2007 | Sony KP-57WS500 57" Rear Projection...

4 Answers

Too much red unable to adj it out


This problem is apparently occurs in 2 cases 1)Exposure of the screen to stron magnetic fields This can be solved by degaussing(if this feature is there in your tv)Otherwise u can drop into a seervice center and it will be fixed in a jiffy. 2)Due to the presence of a dry solder(Loose contact) If you think you can try opening your tv and attempt to spot it. Otherwise just drop into the nearest service center..U can locate by clicking on the link below http://www.sony.net/SonyInfo/Support/

Oct 08, 2007 | Sony KP-57WS500 57" Rear Projection...

3 Answers

BLUE SCREEN


I got this Sony KP-57WS500 57 in TV for FREE from a guy posting it on craigslist because he saw "BLUE SWIRL LINES" also knows as "Retrace Line" on the screen and he went to several repair people and got high repair costs so he was giving it away for free, but i found a guide that tells you how to adjust the tv to make the blue or green or red lines go away, aparantly the line show up because the voltage on the color ray gun tubes that get out of adjustment. Here is the Link to the REPAIR GUIDE. http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

Sep 25, 2007 | Sony KP-57WS500 57" Rear Projection...

1 Answer

VS- 60705 Red,green,& blue lines all over screen.


sounds like your screen controls are too high? thay are behind the front cover 6 contols 3 for focus and 3 are screen the screen controls.

Apr 12, 2007 | Mitsubishi VS-45605 50" Rear Projection...

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