Samsung LTM1755 17 in. HD-Ready LCD Television Logo
greg pappanastos Posted on Feb 04, 2007

Samsung lcd tv ltm1755b won't turn on (power light stays red)

I have had this tv for 4 years, and recently the power light on the bottom right front of the tv started flashing when we would attempt to turn on the tv. When it would turn solid green, the screen would light. Full picture, no issues. The flashing would occur for a longer and longer period of time, with each power-up, then the tv would come on. This went on for a week. Then, finally one day, we turned on the tv and the power light turned solid red. No picture. Is this a repairable problem, or am I better off buying a new tv after cost to repair? Any help greatly appreciated! Thanks in advance. Greg

  • 6 more comments 
  • larbal Dec 02, 2007

    yes

  • ca1103 Apr 25, 2008

    My Samsung tv is 2 years old. We can't turn the tv on, the red light at the base will blink on and off but no picture or sound. Can you help with this problem?

  • phelp please May 09, 2008

    Same Problem ? this guy what do I do? had tv for 4 years, and recently the power light on the bottom right front of the tv started flashing when we would attempt to turn on the tv. When it would turn solid green, the screen would light. Full picture, no issues. The flashing would occur for a longer and longer period of time, with each power-up, then the tv would come on. This went on for a week. Then, finally one day, we turned on the tv and the power light turned solid red. No picture.

  • steveleggman Dec 12, 2008

    We have owned our Samsung LTM1755 B for 5 years. In Augest of this year, when you turn on tv the light would blink 5 or 6 times then tv would come on. About 5 weeks later the light just blanks and tv won't come on. After 3 weeks with the power off. We pluged it in and turned it on and it came on. My wife wouldn't turn it off for 2 weeks, 24/7. We did turn it off and it won't turn back on. Replaced power supply, same problem. What is the problem?

  • mike40009 Feb 09, 2009

    samsung lnt3253 won't power on unless it is unplugged for hours.

  • Anonymous Mar 10, 2009

    Anyone have one of these for parts? [email protected]

  • Anonymous Mar 24, 2009

    In response to the first solution with the technical advice. It sounds good, but upon opening the machine you'll find that there is no sticker with voltages, nor apparent test points, nor is there one single potentiometer on any of the main boards. However, the service manual does give a list of test points that are essentially pins on various transistors. In my case, all of the voltages are what they should be at these test points, and I still get flashing power light without picture. Still investigating...

  • Anonymous Apr 26, 2009

    samsung lcd tv ltm1755b won't turn on (power light stays blinking orange. When it does start ( once in a while) it works perfectly OK, then I turn it OFF, Switched ON and it won't turn ON. Power LED Orange and Blinking

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  • Posted on Oct 18, 2010
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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

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  • Tyler gormley Jan 06, 2011

    great stuff :-)

  • danenastynes Jan 29, 2011

    THANK YOU CHELLSHOCK . . . Watching this clip saved us a minimum of 150$!!! Samsungs '' support group" Wanted us to pay that fee just to have the TV shipped to New Jersey to be looked at. I spent almost two hours researching the trouble shoot for this issue and I found basicly ten different ways of being told I was screwd.... It opened my eyes greatly to seeing that the majority of TV repair shops are abuncha lay *** blood sucking leaches... I'm really surprized that a company who has a reputation of making sutch a quality product feels they don't make enough on there products alone. So they charge a second arm and a leg just to pop a zit on their power board... Samsung, you guys make some pretty cool toys however, I think I'll stick to relying on "untrained and unprofesional" youtube college youth...

  • jayman Sep 08, 2016

    What size capacitor should I buy does it say on it?

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  • Posted on Aug 01, 2009
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I take a hair drier and put it under the tv where the stand that comes with them has been removed. I held the hair drier up to the hole in the bottom for about thirty seconds and it would then come on.
The only time I have trouble getting it to turn on is when it has been off for a long period of time.
I hope this helps

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  • Posted on Jul 18, 2009
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You need only add. cap 2200uF/25V in paralel to a 47uF 25v in main board.

Is all you need. :o)

A

Anonymous

Hi turn on power and hold exit button down for a few seconds............worked on mine and i was ready to bin it, hope this helps Andy

  • luke_hayne Jan 20, 2011

    a lot of lcd tv's have this problem, i think it has something to do with a (film capacitor relay switch) basically it is a mechanical high power relay switch which wares away quite quickly, the film capacitor in my wharfedale L32TA6A is a (mpk x2 3h 40/110/56 3b) but this may vary from different make's / models,

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If you poke a few small holes in the LCD display on the front of the screen, not many maybe about 4" apart, like a matrix, the added air flow will continually cool down the screen and allow it to power up normally. If you don't believe me just try it, worked for me.

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  • Posted on Jan 19, 2010

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!

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PROTRON 26 TWO YEARS OLD

Symptoms of a Defective or dying Power supplies on LCD TVs.
1. Light(s) on the front panel are behaving not normal example, blinking, amber color or not steady, fainting, etc.
2. TV not turning ON properly.
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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!
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