Question about Mitsubishi XD280U Projector
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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
First check your lamp to make sure it is seated properly in the socket.
Then check all of your interlocks (see your manual for locations), these are usually located on any hatches or doors that allow access to the lamp and or fan area. Once you check your interlocks make sure the filter and fan area is clear of dust, (some projectors have air flow sensors), and the recheck the interlocks. Once this is done , If the interlocks are not broken, or the lamp fuse blown, the projector should be working. If not it is the lamp that needs changing.
I know this may be expensive, however these lamps do go bad, as much as we wish they would not.
If you still feel it is not the lamp, have a technician check the voltage levels to the lamp and the levels of the control board circuitry.
I hope this helps,
Posted on Nov 20, 2008
...replace the lamp. The lamp is most likely WAYYYYY past its prime so I suggest starting there. Sometimes even if you had just replaced the lamp the new lamp could've blown. When there is no signal running through the lamp circuit there is no signal to the display sensor, which means no image.
hope this helps!
Posted on Feb 25, 2009
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