Question about Mitsubishi Televison & Video
My mitsubishi wd73737 turns off bout a min r less on it's on after I power it up.. I've been trying everything I'm out of options . How do I reset it r reset the dlp lamp hours. I've unplugged it for 90 secs didnt work I've held down the power button for 10 secs and then turn it back on didnt work .. plz help I need my TV I'm going crazy
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Posted on Jan 02, 2017
The TV is on protect mode.
Try first leaving the TV power cord unplugged for some times, let say one hour or so.
Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.
If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.
The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.
1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.
2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.
If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.
If you are in situation 2 , then there is an internal fault.
Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.
Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.
If under warranty contact the manufacturer ringing the number on the user manual
If you want to repair at your own expenses, just locate any good qualified repairer.
You can find parts here,
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Posted on May 06, 2009
More than likey you have bad caps on DM Board.
It willcost about $450 to repair or you can do it yourself,.
On the DM PCB (part # 934C116002) check C81A2, C81A3, C81B3 and C81B4 (1000 UFD, 16V, 105C), if any are bad, replace all of them with part # 181P734030 (680 uFD, 16V,
The DM PCB is on the left hand side of the TV when you take off the back cover.
Good Luck, BIG IRISH,.
Posted on Dec 15, 2009
Ballast is possible if repeated lamp failure but I have a solution I posted several times for this type of problem that works and is simple to try:
Posted on Apr 30, 2012
Testimonial: "Thanks SD, I will hook up the air tank and see what happens."
In most cases, this can be due to curropted software [firmware]. Contact the authoriized service center for Mitsubishi. Please do not try to update the software by yourself. It is a very skilled work to this set. Gopakumar Gopalan Google
Posted on Feb 24, 2014
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