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Why dos our Samsung Model LE40m87BD after going away for about a week the TV switches itself off and beeps, then turns itself back on. this happens on a regular basis for about half an hour to one hour every time we leave it off for a few days?

Posted by Barry Woodhouse on


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  • 4 Answers

SOURCE: my samsung dlp tv model hl-p5063 w cuts off multiple times while playing

Hi, I had the same problem on my Samsung.

I removed the rear cover and cleaned the cooling fans, there were (2), it has worked fine ever since.

Be careful of course working with electrical boards.

Posted on Dec 01, 2007



  • 1 Answer

SOURCE: I have a a insignia lcd tv model ns-27lcd turns off by itself

The problem is most likely the fuse connected to the power wires. You have to take apart the TV and follow the power wire to the fuse. Fuse number is T4AL/ 250v. It will be labeled above the fuse. We had the same problem. Also, check to see if the metal around the tops and bottoms of fuse are loose.
The way we fixed it was to wrap aluminum foil around the fuse and put it back in. It is only a temporary fix until we can get a fuse. Hope this helps.

Posted on Nov 26, 2009


wilfred graham

  • 558 Answers

SOURCE: Sony KDL46XBR switches itself off randomly light blinks red twice

Your power board got zapped you will need to replace it.

Posted on Dec 16, 2009


  • 1 Answer

SOURCE: Insignia NS-LCD32 - 32" 720p Flat-Panel LCD Turns itself off, resets, then turns back on

It's haunted. You must appease the spirits with a virgin sacrifice.

Posted on Jan 15, 2010


  • 27 Answers

SOURCE: Sylvania LD320SSX turns off by itself.

your powersupply is dying in the set.. have it checked..

Posted on Apr 10, 2010

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1 Answer

My samsung tv keeps turning on and off can you help

Fault with main board. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.

Aug 24, 2014 | Samsung Televison & Video

1 Answer

My Samsung LE40M87BD LCD TV starts, but only comes one or two seconds then switches itself off and then repeats this, trying to turn on. Can You help? It's not the capacitors. They appear fine.

Completely flat tops on all the caps?
Any 24dc present for the backlight inverter board? BL_ON signal present? Sound is OK?
Please read my get to get understanding what it needs to make LCD TV works.
Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors:
Learn about bad caps:
Capacitors kit: he can make you a set of caps.
Or, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.
Please leave rating if it helps.

Mar 08, 2011 | Televison & Video

1 Answer

I have a Samsung LE40M87BD which has stopped working

Sounds like the power supply has failed.

Apr 23, 2010 | Televison & Video

2 Answers

LE40M87BD lcd tv will not switch just repeatedly clicks but does not start

If you have soem expertise, and at your own risk, it may be a faulty electrolitic capacitor inside the unit. If a capacitor is bulgling or emitting black/brown gunge from a raised dome, (like a faulty tin of food) this is a likely culprit unless the switch itself is faulty. Doing this yourself with probabaly invalidate any remaining guarantee. With care, the most difficult thing is not to break the plastic surround.

Oct 03, 2009 | Samsung LE32R41BD 32 in. HD-Ready LCD...

1 Answer

Samsung dlp hdtv turns itself off

I worked on one of these for a few weeks. if you dont mind a little inconvenience you can remove the back lower cover and defeat the bulb door switch and it will run. the last one i had like this we could not find the problem even with samsung tech support. changed many parts in the mean time. its heat related but the lamp heat sensor in our case was not the problem.

May 04, 2009 | Televison & Video

1 Answer

Sharp TV switches to "input 2"

Mine does the exact same thing. I've had it for a few years no, and it just started doing this. It's so annoying. I don't think the weather has anything to do with it, though. It started switching itself just every once in a while, not it is almost every time I turn it on. Sometimes it takes an hour or so to start doing this, other times it's right away. Help!!

Jan 20, 2008 | Sharp 32C-240 32" TV

1 Answer

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Hi Andy.

What is the samsung model number ?


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my sound alternates randomly on and off...hasnt gone away yet and its been about 3 hours

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the problems capacitors try to look the 315v/10uf

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