How to Troubleshoot a Samsung DLP That Turns Off

By Michael J. Scott

Samsung DLP TVs provided a low-cost option for those wanting to upgrade to high-definition television. Like all electronic devices however, a Samsung DLP can have problems and repairs can be costly. If your lamp is bad or your set is overheating, you may find your TV shutting off for what appears to be no reason. Before spending the money to call a repair technician, try some basic troubleshooting to see if you can get your Samsung DLP back up and running.

Things You'll Need

  • Phillips screwdriver
  • Replacement lamp


Step 1

Check some basics first. Make sure the sleep timer on your TV hasn't been turned on, telling your set to turn off at a certain time. If your DLP TV is acting erratically, Samsung recommends turning the set off and unplugging it for 30 minutes. After 30 minutes plug it back in and turn it back on. Unplugging the set resets it, and that may fix the problem.

Step 2

Check your power supply. Make sure your Samsung DLP is securely plugged into a working outlet. Plug the TV into a different outlet to see if the problem still exists. Make sure that a fuse hasn't blown in your house or a circuit breaker hasn't flipped.

Step 3

Replace the lamp. If your Samsung DLP is shutting off or won't turn on, a bad lamp is the most likely cause. To replace the lamp, remove the lamp cover from the back of the TV by removing the screws with a Phillips screwdriver and slide it out and away from the TV. Remove the screws on the lamp assembly and slide it out of the TV. Disconnect the old lamp and insert a new lamp into the assembly. Slide the assembly back into place and replace the screws. Do the same for the lamp cover.

Step 4

Check for signs of overheating. Samsung DLP TVs generate a sizable amount of heat. If the components inside the TV get to hot, the TV will shut itself off as a protective measure. Make sure your DLP is out 12 inches or so from the wall. Make sure that all of the vents on the set are clear of any obstructions. Allow the TV to cool down for 30 minutes before turning it back on.

Step 5

Contact Samsung. If none of the above tips help, it's time to contact Samsung, as the problem is likely something that should only be fixed by a qualified service technician. More serious problems may include a bad power supply or a bad ballast. Attempting to repair those yourself will void your warranty and may cause more serious damage to your set.

Tips & Warnings

  • Keep your Samsung DLP in a well ventilated loaction and keep any exhaust vents free from dirt and dust to prevent overheating.