Question about Toshiba 42H81 42" Rear Projection Television

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My tv toshiba 43n9uxa has a red shadow to images and seems tilted on the edges with blue hue

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Ur tv convergence are dead.Must know how to solders?Must replaced 2 STK convergence ICS,and some or all it resistors.Tries websites like Tv repair world.com,Tvrepairkits.com to buy a convergence kit to repair it ur self.The shop will cost $300-350 for parts and labors.

Posted on Apr 26, 2010

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What is the perfect amount of red,blue,and yellow hue for the screen


that's got t o do with personnel preference and room lighting , but as a general rule adjust color hue's till the edges of a white color object on screen has just lost its primary color edge

the older projection TV's actually have voltage numbers for the service tech to adjust them too , but im not remembering seeing any in the LCD manuals

Mar 29, 2016 | Element Electronics FLX3210 32 in. LCD TV

1 Answer

Mitsubishi RPTV has a blue shadow/image alignment 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 these projection sets and a fairly simple DIY fix. All projeciton 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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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. And you should be able to get the grid straight.

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 fix

69189a5.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 are handy and can follow directions. You can get complete repair kits from TvRepairKits.com or click here. They have put together DIY repair kits that include the OEM parts and step by step photo instructions for each repair. If you are not handy or can't follow directions we would suggest calling a shop.

May 23, 2010 | Mitsubishi WS-65809 65" Rear Projection...

2 Answers

Philips 55P8288A tv has a dull color and a red hue.


This sounds Like the the coolant for your piture tube has become cloudy and needs replacement (usually blue or green tube - thats why the image seems ovrely red).It's a big job (labour wise) since completee dissassembly is required ($200-300). It can be done youreself - check out TVrepairkits.com to get the coolant and instructions.
You can confirm that this is the problem by dissassembling the unit to the point where you can view the face of the CRT's (red green and blue) directly.

Nov 28, 2009 | Philips Magnavox 50ML8105D 50" HDTV DLP TV

1 Answer

BOW PICTURE AND HUE GREENS REDS AND BLUES LIKE SHADOWS


the tv had intermittant solder connections already but h\they appeared when the tv was moved to hook up the digi-box. The solution could be as simple as resoldering the power convergence amps.

Aug 06, 2009 | Televison & Video

2 Answers

Color Alignment


the most common problem when the tv felt is the shadows all over the screen (maybe the tv didnt show it imm but looks like now is there the problem)
second:there is a circuit in the tv that works when the tv turns on every day. prevents the tv showing shadows on the screen.
the answer is this: if that system that prevents shadowing is working then the CRT is broken and say bye to the TV. But if the expert tech can make sure the D' gauss system is not working and can repair it then you get tv back.

Apr 08, 2009 | Philips Magnavox TP3285C 32" TV

4 Answers

Blurred TV - double vision with red hue


I was searching online about what could be the problem with our TV and I came across your page. We have a 52" JVC Projection TV that now has a "blurred" screen. We can see the channels but it looks like it's has a shadow around the images. The screen in in a red hue with green blur.

If you have any suggestions on what caused this and what we can do to have this fixed, I would greatly appreciate your advice.

Sep 07, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Yellow hue


1)Please verify your model # from back of set......

2)Reduce the color to minimum or tune in a black & white chan.
you should see gray, not yellow hue

3)Remove lower front grill cover & access panel.....locate the
focus / screen control block...turn blue screen control slightly
CW......red,green and blue must mix to equal gray

4) reset color to normal level.......reassemble

Dec 22, 2007 | Toshiba 57H82 57" Rear Projection...

1 Answer

Color distortion


There are failures occuring in the scann and convergence circuits. This may not be feasible to service.

Jerry G.

Dec 14, 2007 | Sony KP-43T90 43" Rear Projection...

1 Answer

Blue shadows


Sony Too green,red or blue

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

Nov 25, 2007 | Sony KP-53HS10 TV

1 Answer

Blue shadow


http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Nov 25, 2007 | Toshiba 53AX61 53" Rear Projection...

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