20 Most Recent Toshiba TW40X81 40" Rear Projection Television Questions & Answers

This may be a "ISL9860" chip on your T-con board - I saw a nice youtube video by norcal715 you can do a web search for "norcal715 samsung" & a few from him will pop up. The one I watched was at https://www.youtube.com/watch?v=l2jzLn5QEos
You might contact him through his youtube video.

Toshiba TW40X81... | Answered on May 02, 2017

I would say problem with hyper board.(Dig video bd.)

Toshiba TW40X81... | Answered on May 09, 2014

whatever you have connected to the set, a cable or sat box or a receiver unplug them and the set for a while, plug back and see if that helps or not.

Toshiba TW40X81... | Answered on Dec 11, 2012

I'm assuming that you have tried all the color temperatures, the full color setting, the full tint range and the correct input/colorstream to no avail. The only thing left that you can do then is to try to reset it - Menu, Picture, Reset button on the remote.
If even this has failed then the defect is in the tuner - you will have to call a repairman to replace it.

Toshiba TW40X81... | Answered on Oct 15, 2010

The most likely cause is shorted convergence chips and possibly a few pico fuses.

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 a convergenece repair kit with 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 - 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

You can see some more examples and find a fix herebb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Toshiba TW40X81... | Answered on Apr 17, 2010

possible bad convergence

Toshiba TW40X81... | Answered on Apr 16, 2010

That sounds like it could be a color wheel. The color wheel controls the color on your picture since the DMD chip only creates a gray scale picture. You'll need to do a little more trouble shooting. Color wheels can cost around $100. They can be replaced on your own, but it's kind of a pain to get to.

Toshiba TW40X81... | Answered on Feb 05, 2010

If Red will not move far enough you have one of three things wrong----if the two convergence chips have never been replaced--they are Q751 & Q752 and are black in color---

About 2 1/2 inches wide X 1 1/2 inches tall and mounted side (ON LARGE METAL HEAT SINKS WITH FINS) and they will have the STK-392-110 PRINTED ON THEM IN WHITE.

Either one of them is bad, or one of the 1.8 ohm resistors around them is damaged and off value OR you have a problem in the digital convergence unit--it stores and controls all the convergence adjustments.

I suspect based on your description one of the two chips damaged one of the protect resistors---

You can if you are able to do the repair yourself buy a pair of the chips on Ebay for about 12 dollars plus shipping--I do this for a living and have repaired hundreds of sets with convergence problems.

Let me know if you have questions or need advice--I am here to help people.

If this information helped you, rate this solution as I do this here for FREE.


Toshiba TW40X81... | Answered on Nov 20, 2009

I use a Logitech Harmony 550 that programed very easily and performs all the functions I needed to control all of my AV equipment.

Toshiba TW40X81... | Answered on Nov 07, 2009

Hello, please check the vertical output IC and convergence IC's (STK392-110). Best regards, Arpi

Toshiba TW40X81... | Answered on Jan 06, 2009

on a low signal input to the set the first thing you loose is the color, then it goes snowy and then just snowwhite in a snow storm or all blue with no sound.

check your cables for no shorts and loose connections,
sometimes the color killer control inside the set in the color circuit has to be tweaked alittle.

Toshiba TW40X81... | Answered on Jan 26, 2008

Use code search on your Westinghouse URC to find something that works. If a search through all codes stored in the URC fails, try a different one.

Toshiba... | Answered on Dec 09, 2019

I may be guessing, but here goes. Make sure all the ink cartridges are seated. In Properties, got to Advance - have your settings checked off as follows: Spool print documents so program finishes printing faster, Aart printing after last page is spooled.

Clean the heads in printer, maybe a sllightly dirty cartridge opeining.
Other than above, I don't really know the correct solution.

Toshiba... | Answered on Dec 09, 2019

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