Question about Samsung 700DXn LCD TV

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Why does my samsung 700dxn no standby light

My TV was fine, now it has no power to it whatsoever, no standby light either. It was moved from one location to another recently but it was moved very carefully. The TV is not new, its a 2009 model. I read in quite a few places that TV's of this age are relatively easy to fix because it tends to just be the capacitors that need replacing etc. Is that accurate? If it is not capacitors, what could be the culprit?

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Samsung LCD TV doesn't power on, just blinks 5 times

After about 5 years the Samsung LCD televisions backlight fails which prevents the TV from coming on and the powerlight just flickers the backlight can be changed but it is often alot easier and cheaper to buy a new Television

Posted on Sep 23, 2009

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roety
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SOURCE: My Samsung TV power indicator light cycles on and off.

Hi my name is Eric,
I hope I can help you with your issue ,
Your power supply is the problem, a repairman will charge between $250-$450
depending on if they repair or replace the power supply
Seems you know about this already, they are either 1000uf at 16volts radial caps or 2200uf
open the set and look for bulging caps
here is where you buy new ones

 
 
 
If I have helped you with your issue please click accept.
If you have more questions you can still respond until this post expires,
I will reply asap
Thanks
Eric

Posted on Sep 26, 2009

  • 927 Answers

SOURCE: Samsung model LNT5271f excessive relay cycling before full power

Howdy,
Yes, it is very easy to repair. Solder iron wattage should be at least 300 w.

The PSB is the center Board (towards left) after you remove the back off the TV. Remove the shield that covers the Boards and remove Board from TV with the 6-7 screws. Replace capacitors CM852 & CM853; 2200ufd 25volts.

Good Luck, big IRISH.

Posted on Dec 28, 2009

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SOURCE: Which Replacement Power Board for LNT4665F Samsung LCD TV?

Howdy,
It would be a lot cheaper if you just replace the two caps that have gone bad. Just get a cheap solder pencil from the store and about an inch of solder and you are in business.
The Power Supply Board is the center Board (towards left) after you remove the back off the TV. Remove Board from TV with the 6-7 screws. Replace capacitors CM852 & CM853; 2200ufd 25volts.

Thaks for using FIXYA, BIG IRISH.

Posted on Jan 02, 2010

  • 1 Answer

SOURCE: Samsung TV clicking and won't come on

Did you find out if that would solve the problem? I was really excited to learn that all I needed to do was change out the capacitors but after installing 4 it continued to click. I to removed the cover to the and found the relay where the noise is coming from

Posted on Jan 29, 2010

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Samsung tv will not come on power light is on but will not show picture standby light flashes nothing else happens did this after moving from room to room


Capacitors are blown on the power board. if you keep unpluggging and trying sometimes it will come on other times not, but these capacitors will need replacing

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