Question about Toshiba TN55X81 55" Rear Projection Television

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Convergence and audio problems

TV ~14 years old. No audio and the picture for all colors is out of alignment except in center. The picture is 20% concave. All this occurred at the same time.

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1)replace convergence IC's w/best quality. re-align as needed. 2)recheck audio,source and selections in menu. PVAT!

Posted on Sep 29, 2007

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The picture projects the image with concave lines on the edges. I'll explain further: somehow the picture is distorted in a way that bends the four edges of the picture in a curved-concave manner so that...


Projection sets have two very common problems.

The first common problem is 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

Nov 26, 2009 | Mitsubishi VS-55705 55" Rear Projection...

1 Answer

My AIWA TV 19-inch color is 9 years old. It is


HI,

WHEN WORDS AND PICTURES ARE BLUR,DIFFICULT TO SEE,,

ITS PROBLEM WITH LOT (LIGHT OMITTING TRANSISTOR) WHICH INSIDE TV ...

NOT OTHER PROBLEM ..JUST GO TO ECONOMIC TV TECHNICIAN.

TNKS

RABBANEES

Nov 12, 2009 | Aiwa F2000 20" TV

2 Answers

Colors off


Set all convergence controls to center and then manually set all tubes to as close as possible to coincide with each other. Then, use those electronic potentiometers to fine tune the picture.

Dec 06, 2008 | RCA P60920BL 60" Rear Projection...

3 Answers

Picture is concaved and all the colors are off.


you will need to get a convergence done and the resistors on the conversion IC's checked and bad ones replaced

electech

Oct 30, 2008 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Rca picture concave 52 in rear projection


sounds like your color guns are out of alignment and need adjusting. its a cheap fix with a tv tech but i wouldnt recommend doing it yourself. plus, a visit from a tech can tell you if there is anything else wrong/about to b wrong

Oct 21, 2008 | RCA P52939 52" Rear Projection Television

1 Answer

Sony 52XBR Rear Projection


Sounds like some kinda convergence problem. Can you post an image please?

Jul 14, 2008 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Red Blue and Green colors are not aligned and looks concave


replace fuse looks like cap next to flyback transfomer FL231 it will be the one in the middle.there are 3 of them next to FBT.

May 28, 2008 | RCA D52W19 52" Rear Projection Television

1 Answer

Convergence issue resolved but concave picture remains


Set will need new convergence IC's.Requires chassis pull===technical & mechanical skill mandatory.After repair,re-aligment necessary.

Sep 26, 2007 | Philips 55PW9363 55" Rear Projection...

3 Answers

Concave Images with pink and green colors


you can get it your tv fix the problem is in the IF amp and video circuit.a convergence will also be neeeded.the tv is old but can give you some more life call a tech they will be your tv doc.

Apr 03, 2007 | Sony KP-57HW40 57" Rear Projection...

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