Question about Samsung SPN4235 42 in. Plasma HDTV

1 Answer

Power off, several clicks, power back on...repeat

My Samsung HP-T4254 will shut off automatically after about 4 mins, then it will click like it's trying to turn itself back on, then it will turn back on. This whole process will repeat itself over and over until I finally get fed up and leave it off. It occurs whether I plug the power source into the wall socket or the power surge protector. It also happens regardless of the input source dvd/PS2/coax cable etc. At first I thought it was a heat problem because I've noticed the television gets pretty hot after being on for an hour or more, but I placed a fan blowing directly into the vents and that did not remedy the problem. I also removed the back and tried vacuum dusting it. I've noticed that it has gotten a little better. I also checked all the power supply connections when the back was off and didn't see anything loose or out of the ordinary. I contacted Samsung and they said that it's not a common issue and I should have it serviced. Apparently it IS a common problem, and I'd like to take care of it myself if at all possible. Any help would be much appreciated.

Posted by on

  • iamthepack Nov 01, 2009

    I have the same problem! anyone have any solution??



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Samsung Master
  • 8,457 Answers

Best way to troubleshoot and repair.Buy both power supply board and main backlight video board.Tries new power board first,don't work,tries the new main video baord with the old power supply board,don't work must replaced both new main backlight video board and new power supply board.U can return board unuse for money back later and may have to pay 5% or 10% for restocking fee.These a very common prob. one board or the other,some time both that why buy both for safety,ready to go to troubleshoot and repair.

Posted on Nov 03, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I hace a samsung flatscreen that the screen flickers with no picture and turns itself on and off.

Hi this is a power supply issue. Your power supply is not strong enough to power your tv anymore.

You can get get parts for this tv at

Nov 19, 2011 | Samsung HP-T4254 42 in. Plasma Television

1 Answer

My samsung HP-T4254 keeps turning off in the middle of watching something and makes a clicking noise similar to the one it makes when you go to turn the tv on or off. This noise does not stop until I...

Ur tv power supply board have dead componnents parts call capacitors.Take ur tv aparts,the board that the a/c power cord go into it.That ur power supply board.Searches all around the power supply board and it supporting boards for these dead capacitors,they bulges up on it top,or puff up on it top.These capacitors parts that bulges up on it or puff up on it top must be replaced.U know basic electronic and how to solders?Replaced these dead bulges or puff up capacitors well get ur power back to normal and work.Or tries websites like,Ebay,com to buy a refurbish power supply board for the replacement.

May 17, 2010 | Samsung HP-T4254 42 in. Plasma Television

1 Answer

Hi, Have a samsung hp-t4254 turns on and then shuts off and starts clicking, i was told its a Capacitor problem, like to know which ones, I removed the SMPS board out, Thank You

I have a tutorial on the repair and another on soldering. If you like, have a peak at my Tips & Tricks. I think you will find what you need there. Best wishes.

Apr 17, 2010 | Samsung HP-T4254 42 in. Plasma Television

1 Answer

Turns off by itself and clicks over and over like its trying to

Power supply board is dead.Replaced the power supply board will solved this problems.Tries websites, to buy a refurbish power supply board for the replacement.

Feb 25, 2010 | Samsung HP-T4254 42 in. Plasma Television

1 Answer

Samsung plasma mode HP-T4254 turns off by


Dec 10, 2009 | LG 50PX1D 50 in. Plasma Television

1 Answer

TV worked fine two nights ago. Turned on today and no sound or picture. Blue pilot light under center of screen always on. Any ideas?

There are reset buttons on the plasma look and find your make sure after you reset your tv that u shut it off for few mins

Dec 09, 2009 | Samsung HP-T4254 42 in. Plasma Television

1 Answer

Me too. Same ''clicking'' problem with Samsung Plasma HP-T4254.

Replace swollen capacitors on the power board.

Dec 04, 2009 | Televison & Video

Not finding what you are looking for?
Samsung SPN4235 42 in. Plasma HDTV Logo

186 people viewed this question

Ask a Question

Usually answered in minutes!

Top Samsung Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74243 Answers

Henry  Thomas
Henry Thomas

Level 3 Expert

1074 Answers

Jerry Greenberg
Jerry Greenberg

Level 3 Expert

1667 Answers

Are you a Samsung Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides