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Telefunken TV died, displays blue

Telefunken CRT TV (Mod. TT 2931) died, displays blue screen with red picture of lock in the top left corner, doesn't react to remote control.

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Posted on Aug 19, 2008

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Changed crt coolant, better picture. red squiggily line starting at top center of screen, runs about a third of the way down. thought i saw scratch or small crack in green crt "c" lens. would this cau


Sounds like you may have just left one of the wires loose from the red tube. Not likely an issue from the gren tube but you can always cover the top of the lens and let just green shine up. That may help narrow it down also.

Here is more detailed info for you also.....

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

What you will need to do is replace the coolant and clean the crt. You can get a repair kit from TvRepairKits.com . It includes replacement coolant,step by step instructions, support, etc.

Jan 17, 2013 | Philips 60P8341 60" Rear Projection...

1 Answer

Why does my tv have one blue, one red and one green line at the top of the screen but no picture?


The CRT inside the TV has gone bad. You can either find the make and model of the CRT and replace it, or get rid of the tv and buy another one.

Jun 08, 2012 | Projection Televisions

1 Answer

Hitachi ultravision 50ux26b. Two problems. 1. In the top left corner it looks like a dogear with the picture behind it faded and the edges looking blue.This started shortly after a couple of moves...


All projection TV sets have two very common problems. One is convergence ( 3D/Warped video or dead set) the other is CRT fluid ( Dull Video). Here are more details and solutions for both.

Common Problem #1) Convergence has gone out

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

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

e87380c.jpg

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 get the correct parts, step by step photo instruction guides, and support from www.TvRepairKits.com or click here

Apr 21, 2011 | Hitachi 50UX26B/27K 50" Rear Projection...

1 Answer

The picture seems to be sliding down the screen of my Samsung HCN553W, I can still watch it except for the top 4-5 inches in the top left corner, it's black. Does anybody have any idea what it could be?


Ur tv it beginning to create and will develope a simtom call "Convergence alignment"These problems will delope in to the picture will have shades of colors like red or blue shadows,the picture bows in coners and colors will misaligns,the picture look like u watching a 3D movies,and the tv sometimes,just die and making chirpings sound.This problems very common in DLP tvs,it will develope just sonner or later that all.The covergence problems,the only way to fix are to take the tv aparts take out the Pc board call The Convergence board.Change the 2 STK convergence ICS,and some or all it supporting resitors and pico fuses.

May 06, 2010 | Samsung HCN553W 55" Rear Projection...

1 Answer

I have a Hitachi 46F500 tv and the red crt bowed


I just had the convergence replaced and have a great picture

Aug 16, 2009 | Hitachi 46F500 46" Rear Projection...

1 Answer

3-d looking picture on top and bottom of screen


Your TV most likely has one or more possible problems.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem
  • 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.
701cb04.jpg
77ea520.jpg
f0900cb.jpg
Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.


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

2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

Apr 25, 2009 | Philips 51PW9363 51" Rear Projection...

1 Answer

Red is out of alignment


when i go to convergence and align the white cross with the blue its ok ,but when i try the red it doesnt line up and if l get it close enough it get misaligned only with the red ,green and blue fine

Nov 15, 2008 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Green translucient vertical bar on left side of screen


Cover green CRT lens with towel and see if red/blue video is normal......= bad CRT ?.............................T.

May 09, 2008 | Toshiba 57H82 57" Rear Projection...

1 Answer

Red deflection is way off, picture scrunched into top right corner


call 800-648-6657 order part number CZ01341. This is the convergence output ic. You will need to replace the red convergence output ic IK04.

Dec 27, 2007 | Hitachi 60SDX88B 60" Rear Projection...

1 Answer

Picture at the top left corner curling in


http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
Sony Convergence
http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/
http://www.techlore.com/article/19631/Sony-Convergence-Procedure/

Nov 21, 2007 | Sony KP-41T65 41" Rear Projection...

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