Question about Toshiba 43HX70 43" Rear Projection Television

Blue halo on bottom 1/3 - Convergence issue with my 43HX70

My Toshiba 43HX70's blue is way off on the bottom 1/3 of the screen.
convergence appears to be out of wack. Blue has a halo effect on the bottom 1/3 of the screen.. any suggestions

Anonymous Oct 03, 2008

Blue halo seperation of pictures, convergence cross of blue generator will not adjust up/down only side to side. suspect ic driver chip is no longer functioning properly.

Who has these chips for this model, picture is of good quality for most part.

Blue lagoon

1 Answer

MICHAEL WALLACE

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167 Answers

HELLO SOUND LIKE YOU NEED TO CHANGE YOU IC CHIP'S ON THE CONVERGENCE BOARD.1!1 THERE WILL BE THREE OF THEM .!!! CHANGE ALL OF THEM AND THIS SHOULD FIX YOUR SET. "GOOD LUCK"

Posted on Nov 05, 2008

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Symptoms:

Screen Looks 3-D
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Example Photo:

Problem #2 CRT Fluid has clouded over.

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Projection sets have two very common problems.

The first common problem is convergence

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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...

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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
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You 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

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Projection TV sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

Screen Looks 3-D
Colors wont align
Screen may look distorted
No Audio/Video - makes a chirping sound.

Example Photo:

Problem #2 CRT Fluid has clouded over.

Symptoms

Dull Video, Washed out
White/Bright looking video
Halos around objects
Red/Orange looking

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

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

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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

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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 here

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

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I think the hardest to solve problems are those I installed!!
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etc. Carefully resolder steel jumper wires at board edge,they feed
B+ to convergence amp circuit.Be sure to verify no shorts in pins
of IC's.(use your meter).........T

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