20 Most Recent Mitsubishi Diamond WD-65831 65" Projection HDTV - Page 4 Questions & Answers

Your tv has a lamp inside (refer to your user's manual) make sure is in good condition.

Your tv is actually an Air eater. The tv itself needs a complete river of air (it looks as an exageretion) not really. I create this picture in your mind to help you to imagine all care you tv needs.

1. Turn off the set. allow 20 minutes to cool down the set
2. move the tv to the front and get access to the back of the tv then with a vacuum cleaner gets all dust out around the set
3. make sure the air filter (refer to the manual) is clean.
4. try to make sure the places were the air flows into the tv are clean and free of obstructions (back cover).
5. finally all you can do outside the tv is done. Then when the tv is back its position make sure it "breathes" confortable. You tv has 3 fans inside (there is not a casualty)

The fresh air that goes into the system gets finally out really hot and smelly but as soon as the air flows thats normal for this tv. this is noticiable specially in hot seasons.

First thing that you could do is to try replacing the lamp because old lamp affects the overall picture quality :))

http://www.avsforum.com/avs-vb/showthread.php?t=688802&page=290

The convergence is going bad

check the lamp and air filter if there is one

check the lamp

the dark lines could be what is called hum bars these are caused by ground differences between cable and your AC ground. check to see if these lines appear using a dvd and removing the cable from the cable box. if the lines disappear then call the cable company and your electricain. in the mean time you can use a plug adaptor that is the 2 prong (ground less) until you can have the problem fixed. but don't use the adaptor as a fix, for your TV is a computer and needs proper grounds.

suspect the optical engine. are they present after initial turn off before the blinking light comes on and the cooling process starts? if so then it will be optical engine issue. can be very pricey by the way

sounds like the projector globe is gone. i think you will need to replace it. if you are lucky there should be a pannel on the side or rear of the tv that allows you to replace the globe. pricey though.

good luck

smeags

Check to see if the lamp is on when the unit is off (in standby) if it is components on the Power PWB... 9A20 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 # 915P049020, 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 # 915P049020

Sounds like you fans on the board have dust on them or are faulty.

Please check the sleep timer is off..

Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. https://homenol.blogspot.com/ https://electronicshelponline.blogspot.com/ If blinks continue without any pause, or the LED light stationery; the main board is faulty. Search the site by type in the "brand name" to your device; [Exclude the model number], in the "Search box at the top right of the display window of the Homepage" to get gathered related posts. See the site by a desktop. Mobile view has no search box. If you are viewing it by your mobile, see it in webview/

Have you checked DLP termistor?

Basing the replacement of the board on the clicking sound of a relay trying to close is not a safe bet. The first thing you need to do is check the bulb. Then there is a ballast board and then the Power supply board. Parts might be hard to find. Use the website I listed to see what part numbers are then google it or look on eba or amazon for those parts. Mitsubishi WD 60C8 TV Parts

Most likely a fuse blew when the lamp blew, there is internal fuses on the power supply board on these mitsubishi's, if the fuse is ok though then most likely another component somewhere failed.