Mitsubishi WD-52627/WD-62627 - No sound. Had sound for 6 years, turn one evening and no sound since. Have checked, double-checked all recommended fixes in owners manual. Still no sound.

Mitsubishi rear projection DLP keeps turning off and shutting down. The red light then turns on for a while and then turns off. TV can be turned on again and works fine until a random shutdown occurs again. No fault codes are stored. No blink codes. No airflow warning messages. The original thermal sensor was replaced 8-1/2 years ago. Fans are completely clean and running smoothly. I fixed this problem by replacing the 8.5-year-old thermal sensor. The problem is gone. Mitsubishi thermal sensor part number 299P313010A. Manufacturer part number YS11A95B-C6. Do not use the connector plug. Strip the wires, and hard wire and solder the 2 connections. This might also apply to these models: WD-52631, WD-57731, WD-57732, WD-65732, WD-57831, WD-65831, WD-Y57, WD-Y65

No error code 61 listed, only a 66 error code which indicates lamp issues:
66
A) Lamp did not turn on at P-ON sequence... Check CJ4 circuitry
B) No Lamp Inserted............... No Lamp inserted
C) Disconnected cable between ballast and lamp.... HV connection or lead wire to lamp.
D) Lamp-Enable goes to PWB-MAIN but not to Ballast....Lamp Cartridge Failure

for lamp see the following web site: http://www.shopjimmy.com/dlplamps?tv_brands_select=Mitsubishi&tv_models=Mitsubishi+WD-73638
recommend using the manufacture part# as many replacements for Mitsubishi will not work.

Check your lamp. The popping sound was most likely the arc tube exploding. Make sure you only install a real Philips or Osram lamp. WD73737 Mitsubishi Genuine High Quality Original Projector Lamps now...

These folks have good lamps.

may need the lamp replaced pt# 915B403001
Recommend Phillips, OSRAM or Mitsubishi original (as from experience others will not work or will have very short life)
http://www.shopjimmy.com/dlplamps?tv_brands_select=Mitsubishi&tv_models=Mitsubishi+WD-73C9

sounds like the psu. power supply unit. check the caps are not bulged

What do you think should be right. If there any loose solder terminals to the ballast bard, this type of fault can occur. Anyway, I'm not sure about it; but check this frist before doing any other. Gopakumar Gopalan Google

Mitsubishi's product line includes a wide array of LCD, Flat Panel, and DLP televisions to suit your home entertainment needs. The electronics division has the distinction of inventing the first rear-projection television and selling the very first HDTV in America. Their 400,000 square foot manufacturing facility, located in Irvine, CA, boasts the ability to produce more than 1,000 projection TV's in one day. The company's oft-stated goal of unmatched excellence is driven by their mantra: "Technically, anything is possible." In June, 2008, Mitsubishi introduced a new premium flat panel TV with an integrated 16-speaker sound projector.
Warranty Information
There is in-home service on all big screen models, which have warranties of 30 days for screens and one year for parts and labor. The LCD televisions have a one year warranty on parts and one year on labor with carry-in service. For plasma sets, in-home service is available on all models. There is a one year warranty on parts and one year on labor. The faulty thermal sensor, mentioned in the commmon repairs section, is now covered by an extended 2 year warranty, as is the problem related to the optical engine.
Common Repairs
For the following models: WD-52631, WD-57731, WD-65731, WD-Y57, WD-Y65, WD-57732, WD-65732, WD-57831, WD-65831, the most common repair problem stems from television shutting off almost immediately after it has been turned on accompanied by the message, "TV will shut down in a few seconds. Please check if the air flow is blocked." According to the Mitsubishi website, this issue is caused by a loose connection as a result of a faulty thermal sensor. For models: WD-73727, WD-73827, WD-73927, WD-73732, WD-7383, the most encountered repair problem has been in relation to the optical engine. Another common situation consumers have encountered is failure of the TV to turn on along with unceasing flashing of the green power light. The solution for this problem, caused by the DM board, will vary by repairman. Consumers have also encountered issues with moving vertical or horizontal lines appearing on the screen which can either be due to problems with the capacitor, light engine, or formatter board.

I have the same tv as you with the same problem. I'm sorry I have no solution for you but I can tell you that it will keep happening over and over and over again. We have had ours for just about 3 years now and have had to replace the lamp 6 times (it does the same thing to us, sound but no picture and then turns itself off) you can try to push the system reset button on the front panel of your tv but most likely that won't work. We have also replaced the fan and the light fixture twice. Best Buy (where we bought the tv) has now spent double what we originally spent on it just to "fix" it. I would recommend fixing the bulb and selling it as quick as you can unless you want to spend over $1000 a year on maintenance. We know 2 other people with the same tv just a smaller size and they have both had the same problems we are having. This model obviously has a major problem but neither Mitsubishi or Best Buy want to do anything about it other than temporarily fix it until my warranty wares out. Get out while you can is my advice to you.

DO NOT do anything to your Mitsubishi WD-52525 until you read this forum overseen by a Mitsubishi certified repair technician: http://www.hometheatershack.com/forums/mitsubishi/11703-problem-mitsubishi-wd-52525-scrambled-picture-no-picture-2.html . There has been a worldwide problem in computers and TVs over the past several years with faulty electrolytic capacitors (from Taiwan) that decay, dry out, swell and die. The power supply is often the first component to go bad, but other systems also degrade over time. As the forum explains , this problem is widespread in these sets causing multiple types of display problems after several years of use. Mitsubishi is aware of the problem and will cover most of the cost of repairing the chassis, even years out of warranty, but apparently ONLY if you get an estimate from a Mitsubishi certified repair station and contact their customer support BEFORE doing any work on the set. I just followed the recommended procedure on that forum and Mitsubishi is covering half the cost of my $700+ repair when my 3+ year-old set recently died and showed only a blue screen. I'm not sure if this is your problem, but it might be.

Do the colors seem "separated" somehow?  Sounds like the projectors might have become misaligned. Has the TV been knocked by pets/children/spouse?