Question about Toshiba TW40F80 40" Rear Projection Television

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Tw40f80 toshiba sound i s perfec but picture is shaking in and out a litlte big and the same time the convergence is out with the shaking the color in the center seme to be good

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YOU SHOULD CALL YOUR THE TOSHIBA COMPANY FOR THEM TO FIX IT.

Posted on Jan 16, 2008

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Posted on Jan 02, 2017

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Toshiba big screen Model TZ50V60 Convergence Issue-Chips Replaced


These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

Convergence problems are very common on all Projection TV sets including Sony,Samsung, JVC, Philip Magnavox, Panasonic, Akai, Pioneer, Hitachi, Zenith, and others. You can get a convergenece repair kit wiith instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms
  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted or warped
  • No Audio/Video - makes a chirping sound.
Problem #2

Another common problem is dull or washed out video.
Your TV may have one or more of the following symptoms....
  • Dull looking picture
  • White looking picture
  • Halos around objects
  • Red/Orange looking picture

You can see some more examples and find a fix here
bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Mar 29, 2010 | Toshiba TZ50V61 50" Rear Projection...

1 Answer

Red and blues will not aligning on projection tv


You will first off need to get the training manual on this TV set, so you will know what this set is all about. The problem you have with your set is the convergence IC's need to be replaced, then you will need to understand the service manual so you can go in without destroying the set, and make small convergence corrections. The training manual is available here http://www.tacpservice.toshiba.com/TACP/training/TV/pjtv05f.pdf You will need to know how to solder, as well as certain terms used in this training manual. If you have no electronic background, I highly advise that you call in a pro to assist you in the replacement of the IC, but have this manual available to the technician, as it might save you a few bucks. Good Luck with this repair.

Jul 29, 2007 | Toshiba TW40F80 40" Rear Projection...

1 Answer

My Toshiba 50H82 television takes about 30 minutes to clear up and during that process, it shakes.It becomes clear but still has wavy lines at the top of the screen which is about 6 inches.


Projection TV sets have two very common problems listed below.

Problem #1) Convergence


These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony, Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer, Hitachi,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link below.

Here are some of the most common problems with these sets...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

bb0cf99.pngYou can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Jan 10, 2010 | Toshiba 50H82 50" Rear Projection...

1 Answer

Toshiba tw40f80 cannot adjust green and blue


ok, if you do have a sound problem it is separate from the convergence trouble; this set uses two STK-392-110 ic's. you need to change both and any of the resistors near them that may be gone or open---then adjust the set with the original remote--you can do the adjustments in the customer menu or if needed in the TECH menu-I can tell you how to get into that menu--if you have no sound from the speakers in the set that is a separate issue.

I do this here for free--if you have questions or need help reply here--if this has helped you give me a vote here.

Most of these sets with a convergence problem just need the two chips replaced and the set adjusted---you can buy both chips on Ebay for less than 14 dollars plus shipping.

Aug 29, 2009 | Toshiba TW40F80 40" Rear Projection...

1 Answer

No picture or sound on my toshiba tv


In this unit it's likely the convergence amps are the cause. Those and possibly the 2.2ohm resistors (especially R7726) in the yoke return path - that's why you found the open fuse.
Bill

William Rayburn, CET
Premium Technologies
PO Box 442
Long Beach, WA. 98631
360-642-4993

Oct 21, 2008 | Toshiba 42H81 42" Rear Projection...

1 Answer

Toshiba tw40f80, replaced both convergence ic's, power light still blinks


Solder yoke plug and vertical IC connections.....try again.
Let me know.....T.

BTW....Tosh recommends STK-392-110's replace with -110T's
Toshiba OEM.....then there is no question about resistor value
change......

Aug 03, 2008 | Toshiba TW40F80 40" Rear Projection...

1 Answer

Toshiba Model # 42H81 Picture Problem


Can you describe the issue a little more? It may be a convergence issue which is quite common on big screens. But there are quite a few issues that can cause a bad picture.

If it's convergence, you'll be able to tell by going to a news channel and looking at the text. If the convergence is bad you'll see a ghosting like image of 2 or 3 letters for each one that should be there.

Nov 25, 2007 | Toshiba 42H81 42" Rear Projection...

2 Answers

Tv not powering up


Check micro fuses in power supply,Ex. F851,F852,etc.
Common cause is convergence IC's are bad,located on large heat sinks.let me know....T.

Oct 23, 2007 | Toshiba TW40F80 40" Rear Projection...

1 Answer

No pictures and no sound on Toshiba TW40F80 television


Check soldered-in micro fuses in power supply. Ex.--F851,F852.
If there is a blown fuse, identify which B+ circuit it protects.
Most common - convergence IC's bad===replace.
Need more help? Let me know.....T.

May 21, 2007 | Toshiba TW40F80 40" Rear Projection...

1 Answer

TV picture shaking!!!


It sounds like the Hyper board is begining to fail....Does the menu shake too?

May 16, 2007 | Toshiba 50HX70 50" Rear Projection...

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