Television shuts down as if thermal problem, but cool
Television powers up, lamp lights, picture and sound. After 30 seconds (give or take), set shuts down.
Both the exhaust and intake fans shut down; however, an internal fan blowing on a PCB beneath the lamp area continues to run. The lamp indicator light flashes 4 times every five seconds after this occurs.
Unplugging the unit and plugging it back in twelve hours later results in the same problem. In fact, the internal fan I mentioned above comes on as soon as the unit is plugged in.
Thank you for any help that you can provide. I was recently laid off and am on a bit of a shoe-string budget.
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I beleive from what you have told me that most likely it is just a lamp
issue, there are a lot of so called original equipment lamps and
counterfit lamps on the market that will barely give you 1000 hours run
time. When it comes to Television lamps cheeper is not better. Make
certain to buy an original Samsung lamp, you should get about 3500 to
4000 hours from it. If you need further assistance or have questions
please reply to continue.
AKAI PT50DL14XSMS - LAMP INDICATOR (GREEN) FLASHES ABOUT 20 TIMES - CAN HEAR FAN RUNNING AND LOOKING THRU LAMP GRILLES CAN SEE BRIGHT BULB LITE - NO PICTURE COMES ON - AFTER ABOUT 30 SECONDS EVRYTHING SHUTS DOWN
It sounds like you have a thermal issue. The TV is getting too hot or the Thermal Fuse is bad. The thermal fuse detects the temperature in the TV and tells the TV to shut down if it thinks it is too hot. Most likely caused by poor ventilation or clogged fans from household dust. Try moving TV away from wall or cabinet first, if this does not fix the problem, clean ALL the fans in the TV. If problem still persists, replace the thermal fuse.
Replace the lamp, also the shut down time is correct the unit must allow plenty of time proper lamp cooling. otherwise the lamp life will be greatly shortend. normal lamp life is 3000 hrs.
lamp replacement may require an internal limp timer reset have a qualified tech replace the lamp.