Question about Toshiba 50H82 50" Rear Projection Television

1 Answer

Red convergence is out on the TV. Use the touch

Red convergence is out on the TV. Use the touch focus and then tried the other way and neither worked.

Posted by on

1 Answer

  • 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

This is a very common failure on Projection sets. Its called a convergence problem.

You may have one or more of the following 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.
  • No Audio / No Video - Makes Chirping Sounds

You can see some examples and find a fix here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Posted on Sep 27, 2009

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

MikeNJ1964
  • 398 Answers

SOURCE: Toshiba 42H81 Rear projection "Convergence problem"

One of your convergence IC's has burned out and needs to be replaced. A good rule here is to go ahead and replace both STK392-110 IC's with the new improved STK392-150's. If you have never replaced convergence IC's and realigned convergence circuits, allow a qualified tech to handle it for you.

Posted on Aug 14, 2007

  • 4 Answers

SOURCE: convergence problem

Replace the Convergence amplifiers. Mine did the same. It was like watching a 3D movie without the glasses. It is not hard to do for someone who knows their way around a circuit board repair. Otherwise call a reputable service shop.

Posted on Jul 10, 2008

  • 6 Answers

SOURCE: Red is out of convergence

These sets use STK392-110 voltage amplifiers in the convergence circuit. Chances are good that these are causing your problem. It is best to upgrade these to STK392-150. There may also be some low tolerance resistors that have gone off value. I do not suggest, however, that you do this work yourself unless you have some electronics training. Find yourself a good technician that does component level repair and not board level. The labor will be higher, but the parts will be significantly lower.

Posted on Aug 26, 2008

  • 143 Answers

SOURCE: convergence perfect focus not working and double vision

The problem you have is the 2 STK - 392 convergence integrated circuits need replacing the cost in the UK is about £150.
SUPER8

Posted on Nov 26, 2008

SD Tech
  • 14553 Answers

SOURCE: the convergence is off. When I try to use touch

Ok, we go to solution of your problem===The pico fuses are green and on the main power board--have you removed the back and looked inside--most of these sets have the two STK-392-110 on the main board to the right-they are usually on the left edge of this board on two very large metal heat sinks--chips are about 2 1/2 inch wide X 1 1/2 inch tall--is this how your set looks inside? they will have the number printed on the black face of each chip in white--The fluke meter will allow you to check all the grey protect resistors--most are 1.8 ohm and the pico fuses will be near the edge of the board to the left----All I expect from you for help is a vote here--if you remove the back do you see the chips?

Posted on Sep 19, 2009

Testimonial: "I am delighted with this site and the people that are accociated with it. It amazes me, the level of expertise and the willingness to help someone. "

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

My toshiba 57h81 tv is showing up double vision, looking like the red is off and not aligned. Also the touch focus in the menu says error whenever i try to touch focus it.


This tv have a problems known as a Convergence problems,it dead.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.This parts must be replaced to solved the convergence board problems.The shop will cost u $300-350 for parts and labors.

Jun 17, 2010 | Toshiba 57H81 57" Rear Projection...

1 Answer

The colors aren't matching up I have green semi


Yoy have convergence issue with tv,try the magic focus/touch focus or manual adjustment in the menu under convergence, if can't be adjusted then your convergence ckt is the problem,you will need a tv tech to repair it.

Mar 19, 2010 | Mitsubishi VS-50605 50" Rear Projection...

1 Answer

The touch focus on my 50h81 says touch focus error, the red vertical is crooked. There is a red and touquoise line surrounding everything on the picture.


Ur convergence is dead.U must know how to solders?Must replaced 2 convergence ICS,and some or all the resistors.Tries websites Tv repair World.com,Tvrepairkits.com to buy a convergence kit to repair it ur self.The shop will cost $300 for parts,and labors.

Mar 15, 2010 | Toshiba 50H81 50" Rear Projection...

1 Answer

Trying to manually fix color convergence on Toshiba 57H81


The convergence ICs and the six 1.8 ohm 1watt resistors need to be replaced. You can get the convergence repair kit for your model at www.tvrepairworld.com which has the Two Convergence ICs and the six resistors plus the CD with instructions on how to do the repair.

Dec 02, 2009 | Toshiba 57H81 57" 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...

1 Answer

Red is out of convergence


You can repair it yourself by replacing both STK392-110 Convergence ICs. You can get replacement ICs at the following link with free instalation instructions . Heres the link.
http://servicemanuals.vstore.ca/

Aug 08, 2008 | Toshiba 65HDX82 65" Rear Projection...

1 Answer

Convergence problem


Replace the Convergence amplifiers. Mine did the same. It was like watching a 3D movie without the glasses. It is not hard to do for someone who knows their way around a circuit board repair. Otherwise call a reputable service shop.

Jun 17, 2008 | Toshiba 50H81 50" Rear Projection...

1 Answer

Toshiba 65H81 convergence issue


Does the blue and red crosses move at all ... eather vertically or horizontally. if they move at all then it may not be the chips.. could be a resistor. if the crosses dont move then it probally the ic. these chips run about 7 to 45 dollars apeace depending on type. at our shop we charge around 125 to put in.

Jan 15, 2008 | Toshiba 65H81 65" Rear Projection...

2 Answers

TOUCH FOCUS ERROR on Projection Toshiba TV


My 57H81 won't converge, plus I get the "touch focus error" message. I could get manual convergence of blue, but not red. Plus, during touch focus the red would not move horizontally

Nov 25, 2007 | Toshiba 57H81 57" Rear Projection...

1 Answer

Convergence problem


sounds like bad solder connections on convergance ic solder then if the problem still there replac ic

Oct 24, 2006 | Toshiba 57HX81 57" Rear Projection...

Not finding what you are looking for?
Toshiba 50H82 50" Rear Projection Television Logo

Related Topics:

124 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba Televison & Video Experts

The Knight
The Knight

Level 3 Expert

73591 Answers

Jaime Hernandez

Level 3 Expert

2315 Answers

Henry  Thomas
Henry Thomas

Level 3 Expert

1074 Answers

Are you a Toshiba Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...