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

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Anonymous Posted on Aug 18, 2013

Blue &yellow lines, double vision on most numbers , letters cannot adj convergence or even remove color

1 Answer

Brad Brown

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  • JVC Master 19,187 Answers
  • Posted on Aug 18, 2013
Brad Brown
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This means that a part is failing.
Check the boards for bad connections, and bad parts. IT could be in IC that is bad too

5 Related Answers

Anonymous

  • 4402 Answers
  • Posted on Jan 18, 2008

SOURCE: jvc av56wp74 rear projection tv

http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

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Anonymous

  • Posted on Jun 16, 2008

SOURCE: I art JVC 46 inche double vision

How do you use the auto convergence?

Slinteriors

Sonny Berry

  • 8617 Answers
  • Posted on Mar 06, 2009

SOURCE: Model# AV48WP30 Picture show double vision. Colors cant be adjus

you need to replace the convergence ICs and associated resistors you can get the repair kit at the following link for your model which contains the two ICs and all the feed resistors plus step by step instructions with detailed photos how to do the repair. Heres the link to the kit for your model.
http://servicemanuals.vstore.ca/product_info.php/pName/av48wp30-convergence-repair-kit/cName/convergence-repair-kits

Anonymous

  • 110 Answers
  • Posted on Jun 03, 2009

SOURCE: Seeing double pictures/letters on my rear projection big screentv

Start by replacing STK's IC.

Anonymous

  • 647 Answers
  • Posted on Oct 24, 2009

SOURCE: we have a problem with the ghosts. double people

Need a repairman - unless you've done soldering and electronic component replacement b4.
convergence output IC problem. convergence board would have to be removed - remove and replace 2 STK IC's and check the surrounding resistors. Shops usually charge between $200-$400 Be sure to vote/rate me if this helped Thanks!
See link for more detail
http://www.ehow.com/how_4575598_yourself-projection-tv-repair-convergence.html

Testimonial: "thank you, this reaaly help"

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1helpful
3answers

Colored lines at top and bottom when tv comes on and seeing double vision in different colors at all times

If your tv is not a DLP the problem is in the convergence, try to adjust it using your original remote control go to the setting menu then to the convergence section. Adjust the red and blue convergence. you should move the red and the blue in up, down and left, right if this color does not move far enough your convergence IC is already defective. Replacing this convergence IC will solve the problem. In locating this convergence IC you should remove the back cover of your unit but be sure to unplug it before doing this. This convergence IC is attached to a large aluminum plate, it is the heat sink, and it has a marking of stk- ### followed by numbers. You can try to pull it out using a soldering iron and soldering pump but be careful you may damage the board and cause much problem to your unit. Or you can contact a technician to do it for you and save you from stress good day and best regards.
1helpful
1answer

Color yellow and blue and double vision 8 years old

This is caused by the convergence IC's failing. They are located on the right lower side of the cabinet and the board should slide out after removing two screws. They are mounted to the two heat sinks.The IC's numbers should be stk-392-120. I recommend using heat sink compound on the back of the IC's.
I hope this helps,
Skyassoc
0helpful
1answer

My sony kp57ws510 model tv has double vision and the double vision that shouldnt be there is in blue and red..whats wrong with my tv?

The tv have a problems known as a convergence problems,it dead.The tv colors lines R,G,B mis alignment,have shadows pictures or 3D pictures look alike.The tv convergence board have dead parts.The 2 STK convergence ICS and some or all it resistors on the tv convergence board are dead.These parts on the 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.
1helpful
2answers

Can i realine the lens myself it has a yellow tint and yhe lettering is out of focus

If you have yellow coloring on everything, this is not a lens alignment problem. Either you have a color balance problem (weak blue) or the coolant fluid in one or more CRTs is going bad. The coolant liquid is supposed be clear, but with age it breaks down and turns yellow.

First, unplug the set and remove the back. Use a mirror if you have to, but look down at the top of each CRT using a bright light. They should be colored red, green or blue, with no yellow to muddy the color. That's a quick check on the coolant condition.

You can replace the coolant, but be very careful not to spill any inside the set. Broken-down coolant can short out electronics and cause a lot of damage to the circuitry, especially in the high-voltage sections. Some people prefer to remove the CRTs from the set for this process, but that is a considerable amount of work. Others use kits with pumps to remove the coolant, and work inside the set with reasonable precautions - if there is enough room. There are a number of good tutorials on-line, or at least there were when I last looked two years ago.

I recommend getting the color right before attempting the focus. Bad coolant may scatter the light and fuzz up the picture, so check that out first and post back what you find.

If you have yellow fringes on otherwise normal colored objects, the blue convergence is off. This will also make lettering appear out of focus. Most RPTVs have a procedure for bringing up a convergence pattern (a grid of dots) using the remote control. The dots should all be white or have very little color fringing. Follow the directions, and make small adjustments, then check the effects all around the picture. Correcting one section may cause a change elsewhere. Use a ruler to make sure the dots stay in the right place; otherwise you may end up with a distorted picture.

Caution to other readers: do not try to adjust convergence if you have a "bow-tie" shaped picture in one or more colors. This indicates a convergence amplifier failure, which must be fixed first.
0helpful
1answer

Model# AV48WP30 Picture show double vision. Colors cant be adjus

you need to replace the convergence ICs and associated resistors you can get the repair kit at the following link for your model which contains the two ICs and all the feed resistors plus step by step instructions with detailed photos how to do the repair. Heres the link to the kit for your model.
http://servicemanuals.vstore.ca/product_info.php/pName/av48wp30-convergence-repair-kit/cName/convergence-repair-kits
0helpful
1answer

Color is mostly yellow and blue with double images

you have lost the convergence IC`s in your set, this really isn`t a diy repair unless you are very proficient in un-soldering and re-soldering components, once replaced there will be an alignment procedure as well that will require the service manual also, if you have more questions feel free to ask away, video-tek
0helpful
6answers

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
0helpful
2answers

Multipoint blue convergence cannot be adjusted

Sound like you need to replace the STK's and any blown pico's on convergence board.
3helpful
2answers

Color misaligned in RCA P52927

Hi,sounds like the convergence power supply reg.has failed,when this ic fails the adj. projection tv leaves the menu,this ic is located on the board above the board with 6 heat sinks on it mounted on the black plastic,its the ic that is heawt sinked on this board,part number is 215530
0helpful
1answer

PICTURE

Sounds like there is a problem in the convergence circuit. There should be an on board cross hatch and controls to adjust the lines to a white line. If these control wont adjust then the power ICs in the convergence circuit are most likly bad. if you know how to solder and know how to replace electronic parts then get a service manual find the part #s and order the parts . If you dont know how I can teach you here sorry. But I will tell you that a repair like this will run about 300 to 400 bucks to repair. Good Luck
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