I have a Samsung HL-S5679W and when I recently tried to power it on, the "LED" light blinks for 15-30 seconds, then the tv reverts back to "Stand by/Temp" which means it turns itself back off. It's not the same problem I've seen when all three lights blink (LED, Timer, and Stand by/Temp) which indicated the bulb needs changing. The TV is about 3 years old. Any help is greatly appreciated.
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