Question about Samsung HCN4727W 47" Rear Projection Television

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Samsung HCN4727W burn in problem

I have a Samsung HCN4727W and now i see some yellow in the screen , it suppose to be white. Burn In problem?

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Its called burnT image

Posted on Jan 26, 2009

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Pop smoke and blurred screen. Found burn spot on botom of PC board under what appears to be the high voltage power supply. Looks like a charcoaled capacitor and maybe a diode. Have not tested the diode...


jdowell1,

The easiest solution would be to go to http://www.servicemanuals.net and purchase a downloadable service manual for about $16 US. If you plan on working on this unit in the future it should more than pay for itself. The manual would have the values of the components and much more valuble information.

Thanks for using FixYa and for the generous rating.

hardrocko

Aug 05, 2010 | Samsung HCN4727W 47" Rear Projection...

1 Answer

I have a HCN4727w samsung. Red/green shadowing. Bowed image


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 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.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

Jan 17, 2010 | Samsung HCN4226W 42" Rear Projection...

1 Answer

My samsung hcn4727w blinks red when i turn it on


either the lamp, ballast or power supply need to be replaced.

Nov 11, 2009 | Samsung HCN4727W 47" Rear Projection...

1 Answer

Samsung HCN4727W Rear Projection TV, green screen, audio works


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,Akai2_bing.gif,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...

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*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

Jul 10, 2009 | Samsung HL-R4667W Rear Projection...

1 Answer

Samsung


have the power supply checked

Jun 16, 2008 | Samsung HCN4727W 47" Rear Projection...

2 Answers

Burn in on sides of screen


Only one way = replace all three CRT's ! ........................T.

Nov 12, 2007 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

Image retention


most manufactures say not to have a still image on the screen for more than 15% of your viewing time. to fix this you will have to replace the optical assy. i did come across a sony projection where the burn in was actually on the screens themselves. the only thing you can try is to put an all white video pattern on your tv for at least 48 hrs.

Oct 06, 2007 | Sony KDS-R60XBR1 60" Projection HDTV

7 Answers

Burn In


i dont think there is much you can do about this which wont cost a fortune

Mar 26, 2006 | Sony Grand WEGA KDP-65WS550 65" Rear...

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