Question about Samsung LN-T4661F 46 in. LCD HDTV

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NO PICTURE One year old Samsung LED TV LN-T4669F-S and all of a sudden we get sound but no picture. Now it is taking over a hour to come on? Any idea?

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Posted on May 20, 2009

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1 Answer

Samsung LED UA40F6400 suddenly lost picture.


The tcon board or the LCD panel is faulty. You have to replace the TCON board to confim the fault.

If you wish to get some details; check the site linked here. Pull up older posts.
http://electro-medical.blogspot.com/

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My Samsung LN-S2651D has sound but no picture


Hello,

Check with Samsung, this model should still be under the 3 year warranty. You are having a problem with the backlight power supply. You can look on the back of the unit for the manuf. date, if its less than 3 years then go to www.samsung.com and process the online service request form.

I hope this helps,if so please rate our solution.

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1 Answer

Sound but no picture


that's a problem of signal that you have stayed somewhere that revirsarlo a osiloscopio

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1 Answer

No picture on Samsung LCD 40" TV


Nobody could guess that! it depends on where you are in the world. For Instance I am in australia network.
Call outs generally run to $AUD90 and $90 and hour Min 1 hour.
You do not say whethyer the power light lights up so its again guesswork.
If the power light IS lit then there is power from the wall to the primary coil of the power transformer. I would then suspect either the secondary transformer has failed, or that a fuse after the secondary and pre picture/sound module has blown. The power supply ( cant by bits) costs around $200. The fuse 0.60
add to the callout fees and you get some idea of the cost can cost half the value if a $1000 TV The plasma screen hasnt gone so that's always a plus and its rare for the video board and sound module to fail simultaneously. So my bet is the poer supply side and fuse

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1 Answer

Sound yes, but no picture on tv


If you have sound on the stations this is a problem in the display. Take bright flashlight and hold it against the screen. Look for an image around the edge of the flashlight. If you see an image then it's one of three problems;
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2) The CCFT (cold cathode fluoresent light) are bad.
3) The power supply to the inverter board is bad.
Someone knowledgeable in electronics can replace the bad part(s).

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1 Answer

Sony LCD 52 inch


This sound like you are having problems with the power supply board. Since you are getting a momentary picture and sound the fuses are good but TVs today have "shorts" and "overvoltage" circuitry build in that will shut it down on errors. Someone knowledgeable in electronics will have to isolate the exact cause.

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If it is only 6 months old you probably still have a warranty. This is definitely a hardware issue, and unless you are comfortable taking your new TV apart, I would contact Samsung for repair.

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