Question about Mitsubishi WD73727 73" HDTV

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The television displays poor air flow and the tv will shut down in a few moments. After 3.5 years the lamp burned out so I replaced it. The new lamp lasted 8 months and the last 4 months it started to display the air quality statement on screen.

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This tv has a faulty connection to the temp sensor that sits behind the lamp. You can purchase a improved one from Mits or get it repaired, or do it yourself. You will need to pull off the back and remove the lamp and the fan airduct to the right (3 screws i think) and you can get access to the sensor. It is held in with a screw that points toward the back of the tv and the sensor sits on the other side of the metal from the lamp. The connector to this sensor is faulty, so you can pull it out and just cut off both sides of the connector and hard wire it with some solder, or just twist it up really good and tape it up with electrical tape.

The early versions of the lamp had a very fine screen on the lamp housing, this clogs easy, it may be clogged causing your issue as well. Pull out the lamp and look for the small screen. Clean if necessary. If its very fine and clogged, you may just want to remove the screen completely to prevent further issues.

Posted on Jun 03, 2010

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I have a mitsubishi 3d dlp tv model wd-73640. The lamp keeps burning out. We have replaced it 3 or 4 times in a year. Do you have any idea why this keeps happening?


These lamps should last around 5 years so I can understand your frustration.

Normally the lamp life is shortened by heat issues? Do you have enough space above, to the sides and back to let air flow in and out of the television? Are all fans working? Are the fans staying on for a while after you turn off the TV?

If you're using a power strip to turn off the TV the fans can't run when the television is turned off and it won't cool properly.

Oct 05, 2015 | Mitsubishi Televison & Video

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I have a mitsubishi 1080p wd-65731 just replaced lamp , tv comes on works fine for about 30 minutes and then shuts off , cleaned vents good , has good air flow light that says lamp turns red in the fr


Could be the fan. It will cool tv but could also be to much for tv to handle.
You can also try reseating the lamp. It may say ok but be wrong.
I have a Mitsubishi 5500 projection tv . have had the type of issue you have had and I have replaced a lamp as well.had to reseat the lamp three times before it worked without shutting down.
Hope this helps.




Jan 14, 2015 | Mitsubishi Televison & Video

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We have a wd 57732 a solid yellow light on when turn tv on message air flow block shut down in few seconds shuts off with two green lights flashing and solid yellow acks as if room temp to warm. sometimes...


The lamp needs to be replaced. It's on the back and easy to do. I replaced mine about 3 months ago and it was about $182.00. Hope this works, I know it's hard to fork out that kind of money at this time but once you do the TV will be as good as new. Take care

Jun 09, 2011 | Mitsubishi WD-57732 Projection Television

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Tv turns off after about 30 seconds and 3 red lights show


Your lamp is burned out. When powering up the lamp doesn't turn on so the TV shuts down. Replace the lamp and it should fix the problem. This happens with mine about 1 per year and everytime it's the lamp.

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Samsung DLP TV repair or replace that is the question!


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if you purcased a LTI lamp then the possibilty of a bad lamp may be the case. LTI lamps are cheap and are poorly manufactured. if it is a JVC lamp then you may have further problems such as lamp balast, or thermal sensor. clean the fans and filtersfor better air flow. keeping the lanp cool is important for the life of the lamp.

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1 Answer

Mitsubishi wd 52525 dlp shuts down


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1 Answer

Error Message


. Set shuts off after displaying the message "TV will shut down in a few seconds. Please check if the air flow is blocked." After shutdown, it may have a yellow status LED, self diagnostics indicates error code 38. To repair, replace the Lamp Thermal Sensor with the new version, part # 299P313010A. The sensor is located on the Lamp Cartridge Housing. See Service Tip VS-72B. Under rare circumstances, when a replacement thermal sensor is not available, refer to the original Service Tip, VS-72 (page 2 and 3 of VS-72B) If error 3-4 then this maybe problem:. Check to see if the lamp is on when the unit is off (in standby) if it is components on the Power PWB... K9A20 and/or K9A21 are shorted. Also, R9A02 may be open. Possible side effects ... deformed lamp exhaust duct and damaged lamp. Replace PWB-POWER part # 934C228003 and if necessary, Lamp part # 915P049010, Lamp Exhaust Duct part # 642B155010, and/or Lamp Exhaust Duct Cover part # 642B156010. See Service Tip VS-73 2. If the lamp never lights suspect the Lamp part # 915P049010

Aug 22, 2007 | Mitsubishi WD-57732 Projection Television

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