Question about JVC AV-56WP74 56" Rear Projection HDTV-Ready Television

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Red color trouble

My projection tv has a red stripe on the middle of screen

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A picture or blank raster viewed from the front will have red marks if a portion of the image path from the green CRT to the front screen is blocked by debris or if the Green CRT is damaged from burn-in or other situations. If green is missing, red dominates virtually any image.

Severe CRT burn-in can occur when there is no sweep signal to a yoke. I have seen technicians removing yoke connectors on RPTVs in attempts to find shorted or suspect components.

Occasionally a damaged TV is sent back to customers as repaired and a service order for a new "fault or complaint" is initiated when the customer complains of the red or green marks or lines.

easyab

Posted on Aug 24, 2008

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6ya6ya
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Posted on Jan 02, 2017

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Blue & yellow stripe on bottom of screen at first now red and green like 3d


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


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fcabb43.pngCONVERGENCE SOLUTION

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

Jul 08, 2010 | Philips 60PP9202 60" Rear Projection...

1 Answer

Color problem in the middle of the screen. When


You have a bad light engine. This is only repairable by a technician as you have a Hitachi LCD rear projection television.

Sep 10, 2009 | Hitachi Televison & Video

1 Answer

I was just given this t.v because friends couldn't figure out what is wrong with itl. The colors don't line up right,looks kinda blurry depending on the lighting of the program being watched. How do i fix...


According to the manual:
1) go to the "TV Main Menu"
2) Select "Screen"
3) Select Adjust Projection TV (obviously only if a projection TV).
This then allows you to adjust the TV's 3-colors. Selecting GREEN CENTERING brings up a control panel that lets you center the green projection tube on the screen. Selecting RED CONVERGENCE or BLUE CONVERGENCE lets you align the Red & Blue projector tubes. Centre the green projector tube 1st. Then adjust the red & blue until the test pattern on the TV screen appers white.
Good Luck!

Jun 08, 2009 | Proscan PS50700 50" Rear Projection...

1 Answer

Yellow stripe across middle of the picture


yes rteh color of the wires(ends)red,blue,green,sounds like they may ahve gone bad or are interchanged, what does it do with a dvd picture

May 23, 2009 | Hitachi 42V710 42" Rear Projection HDTV

1 Answer

Red Stripe


the cost of the repair is fair. The color wheel is about 175.00 some other areas in the tv with the kind of problem you are relating can cost the board just above 200.00 until 350.00 then only the color wheel can practically cover the cost you are about to do. Plus labor. make sure they give you the 3 months warranty.

Feb 24, 2009 | Samsung HL-P5063W 50" Rear Projection HDTV

1 Answer

Red Blue and Green colors are not aligned and looks concave


replace fuse looks like cap next to flyback transfomer FL231 it will be the one in the middle.there are 3 of them next to FBT.

May 28, 2008 | RCA D52W19 52" Rear Projection Television

1 Answer

No color and green and or purple color stripe


Yes, sounds like the convergance IC's. They will need to be replaced.

Apr 13, 2008 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Red triangle in middle of screen


Good Day, lawrentzsca;
Sounds like bad convergence IC’s, chips. Hit recommends using STK392-150’s and replacing the bias resistors.
Good Luck, Big Irish, but hope the TV is fixed by now.

Mar 14, 2008 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

Big vertical tinted stripe on screen


Need more information:
Can you isolate which color is causing the banding?
Is there something ON the lense itself?
Is the projection mirror broken or bent?

S

Dec 12, 2007 | Sony Grand WEGA KDP-57XBR2 57" Rear...

1 Answer

Vertical Stripes on My Mitsubishi WS-65809 Projection TV


ADAM,

YOU NEED TO ADJUST THE SCREEN VOLTAGES TO BALANCE IT OUT. YOU CAN DO IT YOUSELF. HERE IS A WEBSITE. PLEASE READ THROUGH IT ALL. ITS FOR RED TINT OR LINES, BUT ITS USE IS FOR THE SAME PROBLEM AND COLORS. HOPFULLY, ON A LITTLE ADJUSTMENT IS ALL IT NEEDS.

http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

PRIDAH

Nov 22, 2007 | Sony KP-57WS500 57" Rear Projection...

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