Question about Mitsubishi WD-62327 62" Rear Projection HDTV-Ready Television

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Replaced bulb but tv comes only comes on for about 10 to 15 seconds then shuts down and red light flashes

I replaced the blown bulb and the tv worked for about 12hrs then shut down. I thought the replacement bulb might be bad so I exchanged it for a new one. I installed the new one and when I turned the tv on it still shuts down within 15 seconds and the red light flashes. If I turn the tv on with the bulb out of the tv it doesnt shut down. The manufactured date is May 2005.

Posted by Paul Phillips on

  • Paul Phillips Jul 20, 2007

    Well I know that the problem is the thermal reed switch. It's attached to the heat sink (along with a small fan) that is behind (I believe) the DLP Chip. If I unplug the thermal reed switch and jumper the plug going into it the tv works just fine. Also when I measure the reed switch it's open. My problem is trying to find the switch. It's made by a company named Tokin. Tokin seems to be part of NEC. I have found a few companies that sell in large quantities. Anyone know where I can buy just one?

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The problem could be in dad board on top on the light engine.Any problems with the DAD board or the light engine will cause the unit to go into shut down. Replacement of the light engine usually includes the dad board. I know for fact that a number of Samsung DLPS have bad light engines and the use Texas Instrument LGs. You should have this verified by a professional technician. These light engine assembly's can be very expensive. Scrivitron

Posted on Jul 19, 2007

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It sounds like you have a bad ballast board, or possibly the power supply going to the ballast bulb. I'm afraid that if you do not have the repair experience on solid state TV sets, you will need to contact and authorized Mitsubishi repair center. Good Luck

Posted on Jul 10, 2007

  • Anonymous Jul 13, 2007

    what is it your looking for?

  • Anonymous Jul 15, 2007

    You have a bad ballast in this set or the power supply going to the ballast. There is I'm afraid, no magic fix. You will need to test the voltages to the ballast and if they are good replace it. if they are not good, you will need to troubleshoot the power supply.

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