Question about Projection Televisions

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I just got a tv for free and the screen is kinda got a white tent to the intire picture and the sides have a bow inwards how do i fix it and if i cant how much would it cost

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  • mrvondy2uc Jun 19, 2008

    the model number is 626.54638 394

    and on it was a sticker for replacement parts for

    front half 647177-2

    back half 647257-2



    but when i typed any of these into the computer i couldnt find anything on this tv not even the specs only postings of problems from 03 and 04



    i can solder i went to school for CIT i just need to know what to solder

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Please provide a make and model as each one is different. There is a problem with the pincushion circuit. The cost should be small if you can solder.

Dan

Posted on Jun 19, 2008

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1 Answer

Picture is distorted......bowes inward. Colour is


This is a very common failure on these projection sets and a fairly simple DIY fix. All projection 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 pics of convergence problems.


7859b01.jpg

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69189a5.pngSOLUTION #1

For more more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change

65af323.jpg

69189a5.pngSOLUTION

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

Apr 21, 2011 | Sony KP-57WS500 57" Rear Projection...

1 Answer

My screen to my RCA 56" HD TV is messed up. The picture seems to be bowed inward and the colors are all mixed up. I tried to do the convergence but it is not on the menu and I remember it being there...


t is the problem of convergence setting or convergence IC.
Comment by ready2helpu, posted on Oct 21, 2008 IF THE PROBLEM OF CONVERGENCE SETTINGS then check out this link 
http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html


if the problem of convergence IC THEN check out this link 
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm

you can do it manually. 
thanks.

Oct 21, 2008 | RCA R52WM24 52" HDTV Projection Television

5 Answers

Screen distortion


Its due to your screen colour pixels problem! mostly its done due to the presense of magnetic things around the TV. But as far as i know you cannot repair by your own! it needs some expertise*

Dec 08, 2007 | RCA HD56W66 56" HDTV

1 Answer

Problem with Sony KP46WT500: Each line on the


These sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

  • Screen Looks Distorted/3D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - makes a chirping sound.
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking screen
  • White looking sceen
  • Halos around objects
  • Red/Orange looking

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

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Mar 16, 2010 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Picture borders bow inward and blurred. Only focused in center of picture .Kinda looks 3dish


your convergence IC's have gone out. Lot of pins on these bad boys if you don't know how to solder then call a repairman, but expect a heafty bill.

Aug 06, 2009 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Bowing of picture at top and bottom towards center.


Projection sets have two very common problems outlined below.

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. The TV can also shut down when the convergence starts to fail.

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, RCA and others.


You can more info and a DIY convergenece repair kit with instructions from TV Repair Kits using the link at the end of this article.

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

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped or bowed
*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.pngSOLUTION

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

Jul 12, 2009 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

I have a Toshiba CX32D60 with sides of screen bowed inwards ( narrow in the middle). Sound bar raises and lowers - sound audible only, close to the plus (+). Any help will be appreciated. Thank You.


You need to adjust the Horizontal Pincushion adjustment of your TV. That will fix the "bowing" which is actually Pinning.

Check the audio source to your set.

Mar 06, 2009 | Toshiba Projection Televisions

1 Answer

Distorted Screen for RCA HD56w66


convergence is the problem. first question do you have convergence in the customer setup menu. if you do not it could be a special small fuse if you do have "convergence" in the setup menu then you most likely have a convergence power board issue. and generally they are replaced. in our shop such board replacement average 124 labor and about 100 for part. if the fuse bout 15 for part and 80 for labor. there are solder connection that cause the blown fuse

Feb 20, 2008 | RCA HD56W66 56" HDTV

1 Answer

RCA D52W20 52" TV AUTO CONVERGENCE WON'T COMPLETE


Sounds like your convergence chip has gone bad. Usually costs about $300-$400 to fix. I would call a local TV repair shop and let them give you a free estimate.

Jan 29, 2008 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

Problem with convergence


bad convergence ic's
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Jan 03, 2008 | Philips Magnavox 9P6034C 60" Rear...

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