Question about Samsung HCN653W 65" Rear Projection Television

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Mixed colors and separation of colors

65 in" Samsung rear projection tv. Three yrs old with no history of problems. Turned tv on one day and colors seem mixed or parallel. When changing channel you can see three numbers, one blue, one red, and one green. Picture isn't terrible, but very annoying. It is some distorted. Can it be a tube alignment problem?

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Re: mixed colors and separation of colors

Common problem known as convergence. The most common reason is the failure of convergence ics. these ics fail all the time because there big and get fairly hot. there is a possiblity that it can be reconverged if the convergence cuircit is not damaged

Posted on Jan 08, 2008

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Re: Toshiba 65 in Cinema Series - 12 years old. Color Separation. Green bow at top center of screen, red and blue double images tilting upwards toward sides. Sometimes clears unassisted after set has...

projection TV sets have two very common problems. One is convergence ( 3D/Warped video) 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. 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.



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.

TV set after fluid change



You can see some more examples and find a fix using this link on Fixya

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sounds like a color wheel problem, I can send you a DIY File with pictures if you wish. Contact me at techman32K@ Good Luck!!

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Color off

You need to have the pins of your convergence IC's checked for ring cracking. That cooling-off period is probably just enough to bring the crack(s) back into contact with each other and as they heat up they separate. It doesn't sound like a IC or component failure, at least not yet. But if it's ring cracked that arcing that happens is placing stress on the Ic's and they could eventually fail... Good Luck Bill

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