Question about Projection Televisions

1 Answer

Convergence problem with Toshiba TV 42H83

Yesterday my near 4 yrs old Toshiba 42H83 rear projection HDTV started having convergence problem all of sudden. The adjustment with the remote can move the red cross vertically, but not horizontally, which is what I need. What's worse, the red color deviation varies in direction in different area. In the center, it is offset to the right, while in the right hand side of the screen, it is offset to the left. I would like to know if it is easy to fix the problem myself, a guy with some basic knowledge of electronoic only. Since the projection TV now is out of favor, it doesn't make sense to spend 300~500 bucks to ask a professional to fix it. Any advice will be appreciated.; Vertical and Horozontal convergence not responding to remote control

Posted by on

  • jacospain Aug 02, 2008

    Found technician near Alicante Sapin. Changed IC (vertical).

    Found no power to Units, unable to find problem. Technician says Scrap TV! What do you think?

×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I am still working on it! Need a technician in Alacante Spain!

Posted on Jul 26, 2008

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 42H83 (2004) has double (or triple) images. Is this something that can be fixed? Is the repair some sort of lamp? If so, is that an easy fix?


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

Jul 18, 2010 | Toshiba 42H83 42" Rear Projection...

1 Answer

Toshiba Convergence


You have one or more bad convergence amplifiers. Best to replace both convergence output ICs as well as check low value resistors associated with them.

Oct 16, 2009 | Toshiba 42H83 42" Rear Projection...

1 Answer

I have a yellow line on the right side of my Toshiba 50 rear projection TV and yellow shadows around people


It sounds like a convergence problem---go into the customer menu and select convergence---set should offer center and multipoint adjustment--in the multipoint look to see if the outer crosses adjust--if red or blue will not adjust somewhere--bad convergence IC's.

Jul 17, 2009 | Toshiba 42H83 42" Rear Projection...

1 Answer

42H83 Convergence


Yes the convergence ICs need to be replaced, however so dont the six 1.8 ohm 1watt resistors as Toshiba recomends replacing those six resistors when the ICs are changed. You can get the 50H71 / 50H82 Convergence repair kit as the 42H83 is identical to the 50H71 series, so the kit will work for your model. Heres the link where you can get the kit.
http://servicemanuals.vstore.ca/

Aug 10, 2008 | Toshiba 42H83 42" Rear Projection...

1 Answer

Double outline "red" around images


Hi you have bad convergence ic stk modules ,Cost for repair center to fix is 250.00. call your local repair center ask there prices on convergence ic repair. It is a very common problem every 3 to 5 years .Our service center does a lot of these.


thanks doctor video 1987

Jun 01, 2008 | Toshiba 42H83 42" Rear Projection...

2 Answers

Toshiba 42 inch rear projection T.V.


this sounds like a convergence loss... the most likely cause of this is what is known as stk's or convergenc ic(chips) have gone bad.. also it cound be the output resistors. most likely need replaced

May 12, 2008 | Toshiba 42H83 42" Rear Projection...

2 Answers

Toshiba model tz50v61 convergence


need to repleace convergence ic # stk392-110 or stk392-160 on hitachi brand

Mar 16, 2008 | Toshiba 42H83 42" Rear Projection...

4 Answers

Convergence problem with Toshiba TV 42H83


Your TV most likely has a Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem

  • 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.
701cb04.jpg
77ea520.jpg
f0900cb.jpg

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together convergence repair kits for most models.

The kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, etc. Everything you will need to do the repair yourself.

Aug 04, 2007 | Toshiba 42H83 42" Rear Projection...

1 Answer

Toshiba 42H83


Most projects in life are "easy",if you know how.Chassis will have to be pulled,convergence IC's replaced w/top quality parts to prevent recall.Some excellant soldering will be needed for prevent maintenance,for instance,the steel jumper wires feedig b+ to convergence IC's. RE-align in servicer mode==final step.

Aug 03, 2007 | Toshiba 42H83 42" Rear Projection...

1 Answer

Toshiba 42H83 rear projection tv turns on but i have no picture or sound. happened suddenly. What can troubleshoot before seeking proffessional hel.


Check all micro-fuses in power supply.If two or three are bad,a convergence circuit O/H will be necessary.Pro help usually required-chassis pull,replace convergence IC's and careful hand- soldering needed to prevent call-back.

May 21, 2007 | Toshiba 42H83 42" Rear Projection...

Not finding what you are looking for?
Projection Televisions Logo

Related Topics:

197 people viewed this question

Ask a Question

Usually answered in minutes!

Top Projection Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

matt martin
matt martin

Level 3 Expert

1191 Answers

yadayada
yadayada

Level 3 Expert

61037 Answers

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

Answer questions

Manuals & User Guides

Loading...