Question about Mitsubishi XD221U 3D Projector
When turning the projector on it automatically shuts down...any ideas...new bulb?
Posted by Anonymous on
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Posted on Jan 02, 2017
If your comfortable w/surface mount troubleshooting and soldering,
download the service manual from elsewhere online. Part of the
troubleshooting tree for this type of problem is to check the surface
mount fuses on the underside on the Main PWB (schematic page 1/8). On
mine, the 12V surface mount fuse, F3004 (2.3A) was open (quadrant C1 on
the schematic). Replaced it, reassembled the projector (3 interlocks
don't 'cha know) and it came up just fine.
Posted on Dec 10, 2007
You have 1 of 2 possible problems.
(1) You need a new lamp.
(2) You have an overheating problem.
Just a quick couple of notes about your projector. It is a DLP projector (not LCD) and as such the machine as no air filters to clean. It does have air intake and air exhaust grilles, but no air filters to clean. This next part comes directly from the owner' manual for your projector:
When the lamp operation time exceeds 2000 hours*1 *2, the projector automatically shuts off and can’t be used until the lamp is replaced and the lamp operation time is reset.
Your machine is designed to give visual warning messages at 1500 hours used, and 1900 hours used. Did you see any visual warning about lamp life over the past few months?
If you were experiencing an overheating problem, a "TEMPERATURE!!" message would flash up on the screen just before the unit shuts down. If there is no warning, you don't have a heat problem.
If you have a replacement lamp available, install it and reset the lmap hours according to your user manual. If you don't have the manual, google it on the web (it available).
Posted on Apr 01, 2009
Does the projector work normally when sitting right-side up? If yes, something could be interfering when the unit is inverted. The symptom you describe initially sounds like a defective fan (some fans put out a computer pulse telling the main board it's running--they have 3 wires, red, black, yellow(signal)). If the board doesn't get signals from all required components, it's programmed to shut down to protect itself.
Posted on Sep 08, 2009
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