Question about Toshiba 55H70 55" Rear Projection Television

1 Answer

Blue conv. not adjustable

Can not adjust blue conv. in the verticle direction

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
  • 8,617 Answers

You will need to change both convergence ics they are STK392-110. You can get replacement ICs at the following link with free instalation instructions with pictures.
http://servicemanuals.vstore.ca/

Posted on Jul 25, 2008

1 Suggested Answer

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Blue Convergence chip will not adjust


In the Convergence Mode there are three main Functions (Categories). •Pressing "6" activates CONV MISC •Pressing "5" activates COARSE CONV •Pressing "4" activates FINE CONV
I don't know if this will help, sounds like you already know about the convergence tuning.

Jan 06, 2011 | Mitsubishi VS-50607 50" Rear Projection...

1 Answer

Pictures and type appear elongated and not in proportion. appear to be squeezed together. how do i make adjustment ?


There should be buttons on the front of the monitor which will open up a menu so you can change the horizontal and verticle adjustments. You will first get a menu, figure out how to move within the menu selections, select the horizontal setting and move it move the image more out to the sides, generally done by increasing the number shown for the current adjustment. The move out of horizontal and go to the verticle adjustment to make sure that is correct..

I hope that this information is helpful and helps you go in the right direction to solving your problem.
If this does help, please leave some good feedback for me.
Thanks,

Brian

Jan 24, 2010 | Westinghouse L2046NV Monitor

1 Answer

I have the opposite of a convergence problem. green pincushion cannot adjust so green is higher on left and right than center (bow tie). BUT red & blue will adjust and proprerly converge over the...


makenamicro, there is still a convergence yoke the green crt which means there is still a drive control circuit that controls your dynamic and static convergence. If you are working with out a service manual it is still possible that one of the convergence power amps is out, since you mentioned that you can adjust the red and blue to conform to the green pattern then try to adjust the green with out the R/B present if you ca not still adjust you green pincushion problem then suspect one of the power conv amps or a defective green conv yoke.(don't forget to check the small value resistors usually around 2 ohm and the pico fuses if the tv uses them. good luck and i hope i answered your questions, please let this web site know if yes by leaving some pos feedback. thanks!

Aug 22, 2009 | Sony Televison & Video

1 Answer

Screen is not a true square: One verticle side shorter than other


Simply just manualy adjust the bottom of the screen by adjusting the distance by an inch or so.
Depending on what screen you have adjust it from behind or vith a thin thread

May 19, 2009 | Optoma HD70 DLP Projector

1 Answer

Sony kp53v75 TV with blue convergence off right by half inch


it is a convergence problem u may have 2 replace conv ic's and some resistors

May 11, 2009 | Sony KP-51WS500 51" Rear Projection...

1 Answer

Conv problems with no pic has sound


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.

42d3683.jpg

7859b01.jpg

e87380c.jpg
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.

Apr 30, 2008 | Mitsubishi WS-55809 55" Rear Projection...

1 Answer

Dark screen and no green conv. RCA P52926 52in Rear Pro


I would first check for liquid on the board, if ok then tap on the green board see if theres a loose connection on the board
and then tap on the convergence area see if loose connection there.

Jan 20, 2008 | RCA P52926 52" Rear Projection Television

1 Answer

SONY GREEN CONV OUT BLUE/GREEN OK,SONY KP-65WV600


Red,blue and green each have an amplifier IC--Stk392-560 x 2

Replace both IC's for reliable repair.Also,check  fuses,location sometimes ps5003-5008. fuse value 3.15 amp. ......T.

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

Not finding what you are looking for?
Toshiba 55H70 55" Rear Projection Television Logo

Related Topics:

42 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba Televison & Video Experts

The Knight
The Knight

Level 3 Expert

72640 Answers

Jaime Hernandez

Level 3 Expert

2296 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...