Question about Samsung LN-T4071F 40 in. LCD HDTV

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Samsung pn51e450a1f. Won't turn on

While watching a television program the tv went off and now it will not turn back I'm. The red power light flashes in the bottom left

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 18 Answers

SOURCE: Samsung 42" Plasma spn-4235 Went black

SOMETHING IS LOADING DOWN THE POWER SUPPLY...COULD BE THE Y-SUS BOARD OR UPPER OR LOWER Y-DRIVE BUFFERS...TAKE THE BACK OFF SET..GIVE IT THE SMELL TEST AND EYEBALL THE FLAT I.C.`S ON THE THIN BOARDS TO THE LEFT OF Y-SUS BD. IF NO BURNING SMELL AND NO CRACKS ON THE FLAT I.C.`S ...TRY REPLACING THE Y-SUS BOARD...NUMBER ONE PRIME SUSPECT...DO NOT POWER UP SET WITH BACK OFF UNLESS YOU ARE QUALIFIED SERVICE TECH...JOE ACE

Posted on Jun 12, 2008

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  • 1 Answer

SOURCE: Samsung flat screen wont turn on red light just flashes..

wont turn on red light just flashes?
On my samsung flat screen tv when you are watching the televison there is no red light on the power button but when you turn the television off the red light stays on all the time? what can I do to turn this light off?

Posted on Oct 29, 2008

  • 4 Answers

SOURCE: samsung lcd tv ltm1755b won't turn on (power light stays red)

Problem: Samsung LTM1755B with only a blinking yellow LED when you try to turn it on.

Solution: I just had one of these come in. I opened it up, and found the U501 capacitor a little suspicious looking, in that it had a deformed top. It was a 470uF 16V electrolytic 105degC 10mm x 12mm. I replaced it with a very good quality 1000uF 16V electrolytic 105degC 10mm x 16mm Nichicon UHN1C102MPD. After that repair, when I tried to turn it on, the LED was yellow for a second, then green, then I got a picture, and it appeared to work great. I then asked the owner a week later how it was working, and they said it was working just like new!

Posted on Jan 19, 2010

  • 1 Answer

SOURCE: samsung lcd tv ltm1755b won't turn on (power light stays red)

I had a 26" Samsung LCD that wouldn't turn on, and the red light stayed on too, so I knew it was getting power. I found some info out there and figured out how to fix it. Also made a video to show others. I'm a complete newb so if I can do it, I know a lot of others can too. Make sure you research stuff and be safe when fixing it. I take no responsibility if you mess up your own TV! But like I said, I fixed it, so I figured almost anyone can. Also, it only cost me $1.40.

http://www.youtube.com/watch?v=vWKlex7kA7A

Posted on Oct 18, 2010

norsewarrior
  • 57 Answers

SOURCE: I have a 42" Samsung

This clacking and clicking noise could have been coming from a capacitor going bad in the tv. If this is the case where the tv will not turn back on, I would suggest calling samsung to try to get a replacement or get the tv serviced. Trying to replace bad capacitors can be a tedious job and requires knowledge of soldering small components. This may also void your warranty if you still have coverage.

Posted on Aug 19, 2011

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1 Answer

My screen has no picture


Seems like backlight is not turning on. Try to get different angles and bright light on the screen to see if there is something on the screen (not sure if this is true on plasma). If you see some text/image, troubleshoot the backlight board.

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Won't turn. on red standby light changes to on but then goes right back red


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If you unplug for a minute and hit the power button it sound like it is coming on then it shuts off and the red power light flashes slowly. The TV is a Panisonic 1080i HDTV, about 6-7 years old. ... I have an old type sony tv with the big back and the red power light keeps flashing and ...

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Your description suggests a power supply problem

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Check power supply and replace any bulging electrolytic capacitors. It is common.

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The flashing red light means there is a problem that cannot be fixed on it's own. there is a good chance it is shot. You may have to take it in but most likeley it will cost close what replacing it would cost.

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1 Answer

I have a 42" Samsung


This clacking and clicking noise could have been coming from a capacitor going bad in the tv. If this is the case where the tv will not turn back on, I would suggest calling samsung to try to get a replacement or get the tv serviced. Trying to replace bad capacitors can be a tedious job and requires knowledge of soldering small components. This may also void your warranty if you still have coverage.

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2 Answers

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Toshiba 50hp95 will not respond and has flashing red power light. It seems many people have this problem, what's the solution? We have tried all the Toshiba suggestions.


My 50hp95 had the same problem; the red power light is flashing and the tv will not turn on. I unplug the power and plug it back in and the TV clicks, but the power light continues to flash red. My problem was a bad Seine module which you can bypass if you do not need to watch HD off air programming. Since I get my HD from the cable, I can bypass it. All you need to do is remove the back panel from the TV (unplug the TV first) and on the main circuit board unplug the white connector labeled PJ63A. The main circuit board is the one in the center of the TV and the PJ63A connector is the bottom white connector on the left side of the main circuit board (the label is printed in white on the circuit board under the connector). Once I plugged the TV back in it worked immediately.

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1 Answer

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