Question about Mitsubishi WD-57731 57" Projection HDTV

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Air flow -bulb-timer light

I have been getting the air flow problem since I bought the tv. I had to place a small fan behind tv to rectify even though there is about 2ft. of space behind and about 8ft on either side. (2) I also had the bulb go out about a week ago.I received a new bulb but now the timer hold light keeps blinking. I tried the system reset, unplugged it again for a while and still no tv. This
all started under warranty but now my warranty is out by one day after ordering lamps and talking to phone operators. PLEASE HELP fantasy football fanatic

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Ditched mitsubishi. Tired of talking to people in other countries that keep putting me off until my warranty was up then tell me there is nothing they can do for me. This all started under warranty but nothing was ever done. The remedy is to not purchase from chains like circuit city but to use a service what they sell store. My next TV will not even sound like the word mitsubishi. My fault for investing that much money without doing the proper research. I looked at everything but their service record.

Posted on Sep 17, 2008

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It seems as though my Sony HD tv's picture has gotten darker over the few weeks. Does the bulb need to be repalced?


IF it is over two years since it was replaced, this is the way that they fail---get darker just before they fail completely.

Average life span is 2,000 hours which works out to for most people about 2 years.

Google the model number with the word Lamp after it and you will find dozens of places to purchase a replacement---the lamp is meant to be a customer replaceable part.

If this told you something you did not know, rate this solution as very helpful as I do this here for free.

REGARDS, SD TECH

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On-going problem where tv is turned on and almost immediatley says it will shut down because of an air-flow problem. After turning on several times it used to then work but lately it just repeats the same...


The fan is shorted and might be dead.The projection bulb been in the tv and used for the last 3 years?The projection bulb,life span are over.Require a new projection bulb.

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I have a pt50lc13 panasonic that would not turn on. I bought the ballast repair kit and installed it and a new panasonic bulb. The tv now turns on, but only for about 5 seconds and then there is a click...


I'm not sure if this is the professional way:) -- but when my pansonic 1080i was acting up just like that - I placed a small fan at the back of the right side of the TV unit and faced it towards the TV air vents and voila the TV stays on and stays cooler. No more blinking lights. I don't think the cooling fan that draws the air out of the TV was working and the TV was overheating. Saved me some money in repairs and after a year it is still working well. A quick and cheap fix - but it worked. Jeanne

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HD50lpw42 rear projection tv. Once tv is on for a while it shuts off. Suspected fan problems, I placed a floor fan behinde tv, a few min later tv comes back on. Could it just be the fan or could it be...


Make sure your filter screens are kept clear.
Protect Components from Overheating
• Don’t block ventilation holes on any of the components. Arrange the components so that air can circulate freely.
• Don’t stack components.
• If you place components in a stand, make sure you allow adequate ventilation.
• If you connect an audio receiver or amplifier, place it on the top shelf so the heated air from it won’t flow around
other components.
Hope this helps!. Otherwise in your owners manual, under troubleshooting it states:
TV turns off while playing
• Sleep Timer, Wake-up Timer, or Watch feature may have been activated. Go to page 45 or 69 for instructions.
• Electronic protection circuit may have been activated because of a power surge. Wait 30 seconds and then turn on again. If this
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• The sleep timer may be set.
• Unplug. Wait five minutes. Plug in again.
Hope this help you out.

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How to replace lamp and reset timer


To reset on the LG MODEL RT-44SZ60DB:
Press OK button on TV and MUTE on control > operation is displayed on screen
press ok to reset

No need for LG to reset this lamp.

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Amber system light is on


had the same issue, we even had a personal fan blowing air behind the tv and the message always comes up right when we turn on the set and the tv turns itself off after about 30 seconds. did some research and it turns out there is no air flow problem just a faulty temperature sensor inside the set. Mitzubishi knew about this since 2006 but didn't really aknowlege it until more recently, they admitted it was a problem with the sensor and are now extending everyone's warenty by 2 extra years so if you got it with a year warenty and you bought it less than 3 years ago, call mitzubishi's 800 number and tell them the temperature sensor needs to be replaced, they'll get you in touch with the nearest service center and a service man will come out and replace the sensor at no charge for parts or labor. hope this helps

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Here is a link to what models have a recall for a faulty sensor... extended warranty on that part preplaceable for free by MDEA.

http://www.mitsubishi-tv.com/j/i/18312/Warranties.html?mid=125121

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I took the back off of the TV (9 screws) and took apart the fan housing to vacuum everything. In addition, I vacummed everything else I could see. After putting it back together, the problem was solved. Save yourself a repair call. Get out a phillips screwdriver and a vacuum cleaner. Thanks to the posters on this site!!

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