Question about Samsung HCN4727W 47" Rear Projection Television

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Samsung i have samsung hd tv (hcn4727w) i power it up and do not hear the normal chime....i also get no picture or sound..........i hear faint clicking from the rear.

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Have the power supply checked

Posted on Sep 03, 2008

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1 Answer

Tv powers on,but no picture, and u here clicking sound


Light bulb likely bad if a DLP type set - may also need a ballast assembly.

Oct 21, 2011 | 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

I have a Samsung hcm4215w you can hear samsung turn on chime but no picture.Please any advice would be appreciated.


Ur video backlight board is dead,not get power to the board to get picture,must replaced the backlight video board.

Another prob.u could have.
U have tv show sound,but no picture?
Ur inverter board it dead.

Oct 24, 2009 | Samsung HCM4215W 42" Rear Projection...

1 Answer

My samsung hcn4727w will not come on. when pushing the power button it sounds like it's coming on and goes right off.what could this be?


Well we need to have in mind that a generic lamp will give you 3500 to 4500 lamp hours and the Phillips will give you 6000 to 8000 lamp hours ,The lamp itself typically uses AC current and about 15,000 volts to ignite the lamp's mercury vapor gas. The gases inside the lamp react when electricity charges up the mercury gas creating very bright light. The voltage drops to keep the flow of electricity to the lamp.
The symptom of a bad ballast is that you could hear a constant CLICKING or electrical BUZZING sound,my recomendation is to take out the lamp to physically check for any sings,(shatter fillement,black or grey spots in the fillement or smoke ) you can get good deals at http://www.discount-merchant.com/?click=52978
Please keep us posted,

Oct 03, 2009 | Samsung HCN4727W 47" Rear Projection...

1 Answer

Hcn4727w samsung red lights blinking but no picture or sound and no noise coming from tv whats wrong?


Replace both of your STKs and CK 2 resistors 2.7ohms STKs will have part number on them STK392-110s ect....they are big black ICs.

Aug 14, 2009 | Samsung Projection Televisions

1 Answer

Samsung HCN4727W 47 in.


I mean that your unit is need of resolder or reheating of the solder joint of the parts.Supply section,horizontal section,vertical section and microprocessor IC.Improper distribution of current flow ,due to a loose contact or crack solder, that's your tv automatically signalling by flashing,that is the main cause of flashing . Find a tv technician to do works for you,,in order to avoid high voltage shock....

Jun 29, 2008 | Samsung HCN4727W 47" Rear Projection...

3 Answers

Samsung HCN4727W


Convergence board shot. Cheap to fix yourself, board has two STK chips on it and is easy to get to.

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

2 Answers

No Picture


see if STK392-110 or similar are good. 2 big chip with cooler

Jan 11, 2008 | Samsung HCN4727W 47" Rear Projection...

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