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Picture is distorted on my Samsung rear projection TV. A technician from Samsung (spoke to her on the phone) said the mirrors were out of adjustment.

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  • muffly3 Aug 27, 2008

    The model number is HCN4226WX/XAA

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Its not just the mirrors but u need to change the convergence board its locayed in the mostherboard with picture tubs or maybe if u adjust the mirror that might solve it

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if u need more help yell me so i can help further.

Posted on Aug 27, 2008

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Try to use the settings from your remote control or the front panel. it must have the adjustment for it like contrast, brightness, etc..

CHARCOIS

Posted on Aug 27, 2008

  • Charris Suaybaguio
    Charris Suaybaguio Aug 27, 2008

    every monitors(almost latest) or crt or lcd got a pincushion an adjustment of bending of the screen to become look like a semi 3d. try to adjust that and see what happen. if still persist then you might send that to a technician to replace some parts(if the hardware is the problem). by the way it must have a default control for that and after that press the degauss to refresh the screen.


    CHARCOIS

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1 Answer

Picture has color separation and halos. Picture distorted.


Your convergence is bad and you need to replace the convergence ICs. I have a tip at http://www.fixya.com/support/r4220499-change_projection_tv_convergence_ics which explains the problem, how to fix it and where to get the parts. Let me know if you need more help. Thanks for using FixYa and for the great rating.

hardrocko

Apr 27, 2010 | Mitsubishi VS-55601 55" Rear Projection...

Tip

Rear projection TV displays a shadow on one corner or side of the screen.


Hi.

This tip may be helpful only if your rear projection TV is displaying a darker shadow on one portion of the screen. If the shadow shape and size will not vary, that means that there is probably a detached mirror in the device called Light Tunnel, located inside your TV.


Most rear projection TV works projecting the light from the internal lamp on the screen. Before reaching the screen , the light will pass through a 'pipe' whose internal surface is covered in rectangular mirrors, located all over the tunnel surface.

A quite common fault is caused by one of the mirror detaching from the the light tunnel internal surface , and falling down or hanging in there. This will be seen on the display as a darker shade located near to one side of the screen.

The light tunnel is located in the light engine. To repair the problem the TV must be disassembled by a technician. Accessing and disassembling the light engine is not a repair that can be done by the owner.

Click here to view pictures of a light engine for a Samsung rear projection model. The tunnel is the optical device located in the light engine.


If you are a technician, to replace the light tunnel you will have to take apart the light engine, that apart of being quite a sensitive optical device, is also the most expensive part on a rear projection TV.

In that case you may find useful the service bulletin posted below, that is illustrating how to replace the light tunnel on a light engine for Samsung rear projection TV. Please be aware, that if you attempt doing this operation without sufficient knowledge and experience, you may damage your TV set beyond repair, as the light engine is very expensive.

How to replace light tunnel on a Samsung rear projection:SERVICE BULLETIN

The file is on PDF format.

Regards.

Ginko.


on Feb 05, 2010 | Samsung HL-P5063W 50" Rear Projection HDTV

1 Answer

Green squiggly line distorting picture on TV


Ur Convergence is dead.Parts and labors,about $300 dollars.

Jan 07, 2010 | Projection Televisions

1 Answer

My rear projection 51mp392h has color distortion on the bottom third of the screen,it curves up in the middle. Is this a picture tube


Hello tj444,

This is not a picture tube problem. This could be what is called pincushion distortion. It is caused when the is a malfunction in the deflection coils and the inability to correct for the curvatures caused by the CRT. The pincushion distortion can also be caused by the degradation of the functionality of the convergence amplifiers in the TV set. I would suggest that you have a TV technician examine the deflection circuitry and the pincushion circuit, this would also include the convergence amplifiers.

I hope this helps,

Thank you,

Shuttle83

http://www.electron-age-technologies-llc.com

Jul 12, 2009 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

Hitachi 46'' Rear Projection TV has distorted picture


Make sure no one pushed the front screens in a little. That will cause exactly what you have. I've seen cases like this where someone would move there set with one had pushing on the front screen and dis-lodging them creating that problem... Hope this helps.

Mar 08, 2009 | Hitachi 46UX50B 46" Rear Projection...

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sound like one of your tubes went dead..

Sep 30, 2008 | Samsung HCL4715W 47" Rear Projection...

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Samsung HC-P4752W 47" projection TV distortion & yellow?


I think you have a fault on the chroma board and on the picture frame board. If you can trace it yourself try these two locations otherwise call out a competant technician. hope this helps.

Sep 30, 2008 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

Samsung 42" rear projection tv. Picture is slightly distorted at top left hand corner. All three bulbs seem okay and the mirror also seems fine. It's as if there is an issue before the bulbs. Any...


What's the model number? Describe the distortion in some detail. Is it intermittent? Does it seem to affect anything else, like audio, when it's present?
Bill

Apr 09, 2008 | Projection Televisions

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