JVC AV-48WP74 48" Rear Projection HDTV-Ready Television Logo

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Posted on Aug 03, 2008
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Red bending lines shadowing all other correct parts of the picture

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Sonny Berry

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  • JVC Master 8,617 Answers
  • Posted on Aug 14, 2008
Sonny Berry
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Joined: Jan 03, 2008
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You can get the convergence repair kit to fix your model JVc at the following link look under the convergence repair kit category, they provide free step by step instructions with pictures so you can easially do the repair yourself. heres the link.
http://servicemanuals.vstore.ca/

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1helpful
2answers

Red & green shadowing on the right side of picture

First thing to try is a convergence but with the red shadowing seems to me that you may have your color gun going. Convergence can be found in your video menu on your setup screen. Once in the menu you can adjust the colors to line up. This usually has to be done on a tv that has been moved.
0helpful
1answer

The red in the picture is shadowing the rest of the picture giving it a 3d effect

All projection TV sets have two very common problems. One is convergence ( 3D/Warped video or dead set) 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. In some cases the TV will also not show any video. 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, wavy, or has a shadow or shadows
  • 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.


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69189a5.pngSOLUTION

You can get the correct parts, step by step photo instruction guides, and support from www.TvRepairKits.com or click here

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.

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TV set after fluid change

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69189a5.pngSOLUTION

You can get the correct parts, step by step photo instruction guides, and support from www.TvRepairKits.com or click here
0helpful
3answers

I have red and green shadows. I tried using the Converge Red/Blue and Multipoint Red/Blue functions as described in the manual but neither worked

The tv 100% have convergence problems,it dead.Tv have colors lines R,G,B mis alignments,have colors shadows pictures or 3D pictures look alike?The tv have a dead convergence board,the 2 STK convergence ICS and some or all of it resistors are dead too.These parts on the tv convergence board,must be change to fix the tv convergence board to solved the tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.
0helpful
1answer

The picture bends at the top and the bottom of the screen and is blurry where it bends at

The tv have a problems known as a convergence problems,it dead.Tv have colors R,G,B lines mis alignment,have colors shadows pictures or 3D pictures look alike.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts on tv convergence board,must be replaced to solved the tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.
2helpful
1answer

How do I get rid of a red shadow in the upper left of the screen?

U can't tv have parts problems.Ur tv have a problems known as a convergence problems,it dead.Tv have colors lines R,G,B mis alignment anywhere in the picture,have picture colors shadows or 3D pictures look like.The tv have 2 STK convergence ICS and some or all it resistors are dead.These parts on the tv convergence board,must be replaced on the tv convergence board to solved the tv convergence picture problems.The Shop,will cost u like $300-350 for parts and labors.
0helpful
1answer

Shadow effect on picture. Picture is fine but there is a red shadow tint to everything (basically everything is written twice, but not in the same spot)

Tv have a problems known as a convergence problems,it dead.The tv colors lines R,G,B mis alignment,have colors shadows pictures or 3D pictures look like.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts,must be replaced on the tv convergence board to solved the tv picture convergence problems.The shop,will cost u $300-350 for parts and labors.
1helpful
1answer

The red field on the screen, bends within the image, creating a 3D like effect.

The tv have a problems known as a convergence problems,it dead.The tv colors lines R,G,B mis alingnment,have colors shadows pictures or 3D pictures.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts on the convergence board,require replacing to fix the tv picture convergence problems.The shop,will cost $300-350 for parts and labors.
0helpful
1answer

Red, yellow and blue bars going through the screen, what does this mean and how do I correct it?

U mean ur tv have colors shadows?Colors lines Red,Green,Blue misaligns don't line up to produced a solid picture?U have a 3D pic?All these are cause by a problems known as CONVERGENCE PROBLEMS.Ur tv the convergence board the 2 convergence ICS and some or all it resistors are dead.All these parts on the convergencce board,must be replaced to solved convergence problems.The shop will cost u $300-350 for parts and labors.
0helpful
1answer

Philips Blue Shadowing

If you have not already done so go into the picture menu and set the convergence. The convergence is the angle at which the three picture tubes meat at a given distance. The tv will have at least 3 and up to 64 convergence points, and those 64 can be set for all three colors. This can be tiresome but I'll be it will solve your problem. What your trying to do is get the color in the cross-hair so you cannot see the color behind the target. On top of the fine setting for each point and color you will probably have 3 gross adujustments for blue and green and maybe red. These adjustments will affect positioning, like what you are discribing. You should do this at least every month, the thermal cycleing of the lamps is what will cause this to creep out of adjustment.

0helpful
1answer

Picture has blue,green,and red phantom lines on the screen

Sounds like a convergence problem. Are you interested in fixing this yourself? If so you will need to know how to solder well and use a meter. I can assist you as much as you need through the process. If you post a picture of what the screen looks like we can know for sure what you have going on. If you call a repairman to fix it he will charge somewhere between $300-$500 to do the repair. Let me know if you need more help!

TIm Nolan
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