Question about Toshiba 42H81 42" Rear Projection Television

2 Answers

Colour problem My Toshiba tv all of a sudden the colour went wrong, there is a wave at the bottom of the tv screen and the colour green is all over the tv and picture is a little blury, it looks like maybe a colour was blown? does this sound accurate as to what happened? the colour seems all out of alignment and I tried to adjust it but it wont nor will it reset. Time for a new tv?

Posted by on

  • 1 more comment 
  • Halfdedtshba Jan 08, 2009

    Sounds like I have the same problem. the blue and red guns seem to be aligned as normal, but the green is way off to the right. I don't have any speakers near it that haven't been there for years without issue. I cycled power about six times, and scolded my vacuum cleaner. I feel like I've gotten my moneys worth out of this thing, but would like to fix it if I can. Any other tips? 

  • Anonymous Jan 27, 2009

    I have a 42H81 from 2002 and it just yesterday started showing a wave of non-aligned color on the lower left corner of the screen. Touch focus doesn't do anything and manual adjust will not overcome the issue. I am looking for a DIY solution or a heads up on a reputable in house tech on Long Island NY

    Thanks

  • salah_siyam1 Jan 30, 2009

    My 42' Toshiba projection TV was working fine, yesterday when I turned on my satellite receiver all of a sudden I get this wave at the lower part of the screen and wrong colors!! How can I solve this problem??

×

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Toshiba Master
  • 3,459 Answers

colour problem - 6b5ee7e.png You may have a convergence problem. Here are some of the most common symptoms.

  • 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.
Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.


You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick email and they will put one together for you. Their kits includes photo instruction guides, original Sanyo STK chips, convergence resistors, pico fuses, etc.

Posted on Feb 05, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 258 Answers

Did you move the TV with it on, or place a speaker near it? Unshielded speakers will cause the colours to do like you describe. Also sometimes a vacuum cleaner can cause this. The solution is easy. first, try moving any speakers away. if that doesn't help. Cycle the power several times [some TV have an internal degausing coil, but it is not very powerful.] the last reort is to have a tech perform a degausing for you. This is done with an electro magnetic coil. If this doesn't help, then either you described the problem in too few details or I misunderstood your description.

Ken

Posted on Jan 01, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

The picture all of a sudden became blurred , color convergence is not aligned and there is a pink wave at the top left of the screen and a green wave at the bottom of the screen. When the color is adjusted...


Tv have convergence problems,it dead.Colors lines R,G,B don't aligned.The tv convergence board is dead.The 2 STK convergence ICS and some or all it resistors are dead,these parts must be replaced to solved the tv pictures covergence problems.The shop,will cost u $300-350 for parts and labors.

Sep 18, 2010 | Sony KP-43HT20 43" Rear Projection...

2 Answers

Projection HDTV Pansonic 47" Curving blue and green colors on top and bottom of screen.


You will need to replace your two convergence I.C.s.They are two large IC mounted on a large aluminum heat sink.Replace both,look for any burned resistors near them,replace those if needed,and readjust your convergence. Good Luck

Let me know if you need any further help

Mar 29, 2008 | Panasonic PT-47WX42 47" Rear Projection...

1 Answer

There is a wave/bow in the bottom and top of the picture on the screen of my Toshiba 70HX50. When I am in the grid screen in the service mode, it looks like the center is 'bowed' out. How do I adjust this...


Slight error in the alignment of a projection TV is pretty much normal. If the problem cannot be seen on a normal TV picture, I would not spend the money.
However, if the problem is severe and causes colour double images, it is convergence and will need parts replaced - about $200-$600 depending on service call, parts, labour, etc.
Minor adjustment takes a skilled technician. attempting it yourself will likely cause the set to stop functioning. (Digital adjustment is not forgiving)

Mar 30, 2010 | Toshiba 43H70 43" Rear Projection...

2 Answers

Toshiba 57h81 green will not focus


Typically this is a convergence problem and can be repair relatively easy. Refer to this video to determine if you truly have a convergence problem. Also make sure you use your TV's original remote to make this adjustment.

Nov 15, 2008 | Toshiba 57H81 57" Rear Projection...

2 Answers

Toshiba 50 rear projector tv


can you post a picture of what the picture looks like? I may be able to help if I can see what the picture is actually doing.

Jun 08, 2008 | Toshiba 50H82 50" Rear Projection...

1 Answer

Toshiba colours gone wrong


Yes it is repairable. One of two things is wrong. The color wheel is going bad or the DMD board is going bad. These are the most common repairs needed for a Toshiba. I hope this will help.

Mar 23, 2008 | Projection Televisions

1 Answer

Fault on TV


something fried .. sounds like the vertical has gone ,
call a tech.

Mar 07, 2008 | Projection Televisions

1 Answer

Toshiba 51h85c rear projection screen is red!!


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

Jan 14, 2008 | Toshiba 51H84 51" Rear Projection...

1 Answer

Hitachi HD projection TV-red and green wave and alignment problem


KIT10 $29.50
Repair Kit for Hitachi convergence Chassis DP-14G
KIT10 Includes 2 pcs STK392-150 , 1 each of the following 1W axial lead fusible resistors:


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

Oct 31, 2007 | Hitachi 43GX01B 43" Rear Projection...

1 Answer

Pt-47wxs1ce green wave at bottom of screen cannot adjust green convergence


you have bad convergence IC's and possable 1 bad resistor
let me know and i will help you find them in the set if your are a good solderer - or call a tech
thanks
scott

Aug 30, 2006 | Panasonic PT-47WX51 47" Rear Projection...

Not finding what you are looking for?
Toshiba 42H81 42" Rear Projection Television Logo

133 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba Projection Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

Dave Naylor
Dave Naylor

Level 3 Expert

834 Answers

The Knight
The Knight

Level 3 Expert

68352 Answers

Are you a Toshiba Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...