Question about Samsung Televison & Video

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Samsung Plasma TV keeps powering on and off as soon as i turn on mains.

Samsung PS50B451B2W Not even staying on long enough for screen to come on, repeating until i unplug mains. Have tried unplugging power for hours and removing all connected devices.

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Tom Chichester

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  • Samsung Master
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Failing power supply

Posted on May 20, 2019

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5 Related Answers

Anonymous

  • 790 Answers

SOURCE: Plasma TV

did you hear the sounds? or maybe you have defective power source in hot side..

Posted on Oct 02, 2007

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Anonymous

  • 53 Answers

SOURCE: No POWER

How many times does the POWER led flash per second? (Dont worry about the OPC).

1x (steady constant blink) = Lamps or inverters
2x = Power Supply
3x = Main Unit

If i am reading it correctly, looks like the POWER led is flashing 2x, which means it is a power supply failure. Either way, your TV needs to have a board replaced, there isn't anything you can do to fix it yourself. Try locating your local sharp authorized service center to repair your TV (1-800-237-4277)

Posted on Mar 16, 2008

Anonymous

  • 1 Answer

SOURCE: LG 42PC3D-UE Turning on, clicking, then turning off & repeat

replace the power supply it is a simple fix if you can hear the relays click 2 times or more replace the power supply board you can order them from UNION Electronics ask for kyle when you call ,,if the power supply isnt the problem then it will be the control board located below the power supply board I have repaired a few of these the voltages are marked on the power sullpy board conections be careful there is a VERY HIGH AND DANGEROUS VOLTAGE FEEDING THE X AND Z BOARDS DONT REMOVE THIS WITH SET PLUGED IN IT IS HOT ENOUGH TO BURN A HOLE IN YOUR SKIN AND EVEN DO MORE DAMAGE TO YOU if your not sure what to do Call LG they have a good support theam there

Dave
Daves Tv

Posted on Jul 24, 2009

budmrtn

Bud Martin

  • 11361 Answers

SOURCE: My Sceptre LCD TV Power turns on briefly (blue

Power supply is the place to look, look for bulging on top of the capacitors in the secondary side of the main power supply.

Posted on Oct 24, 2009

Chi Chu

  • 8457 Answers

SOURCE: Have an LG 50PC1DR 50

Power supply require replaced.Short somewhere in power board.

Posted on Nov 23, 2009

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Have you tried the main board, its what supplies the signal to the power supply to turn it on and off

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try replacing the capacitors in power supply circuit. you will recognize them by their bulging tops

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I turn my tablet on then it switches it self off


Sounds like it does not have enough battery power to stay on. If you have not tried to charge it, you should try that first. If you have, it sounds like it is not getting charged or not holding a charge. Could be bad AC power source, bad charger, bad charger connection or bad battery. Take steps to confirm that each of these are good. If all of these are good, sometimes the tablet can become so discharged that it will not allow itself to charge. When they are in that state, sometimes you can trick them into charging again by repeatedly disconnecting and reconnecting the charger as follows: With charger plugged in to AC power source, connect the charger to the tablet. Pay attention to the screen or LED or whatever indicator your tablet has to let you know it is charging. You may see it momentarily indicate charging, or maybe not at all. Then unplug the charger from the tablet then immediately plug it back in and pay attention for the charge indication again. You may have to do this a bunch of times (like 20) until you see the indication that it is charging. When you do get the indication, stop unplugging and re-plugging and let the tablet charge for 24 hours (to a full charge). This trick doesn't always work. Sometimes the battery or charging circuit or an internal connection is bad and no amount of unplugging/re-plugging will fix a hardware problem.

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1 Answer

My 50" ps50b451b2w Samsung has just had a new main


Clicking sounds like a bad power board. There are small relays on power boards that would make a clicking noise.

I don't know why a main board would have been replaced for that, as I don't know of any main boards with relays or anything that would cause a clicking noise on them.

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I was able to fix my propel by repeatedly plugging and unplugging the charger from the phone until the "download" screen went away. 2 hours with at&t tech support an they told me i needed a new phone,geez

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1 Answer

TV screen went blank and it began clicking, turning itself on/off repeatedly. Had to unplug from wall to make it stop. TV is only 2 years old and has worked perfectly until now.


the power supply board has failed. call 1-800-samsung for nearest service center. power supplies are usually $125.00 plus labor, 1 hour maximum to repair.

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