I have 2 units of IN102 InFocus DLP with the same problem. It start normal but totally shuts down after a few minutes of operation, LED are totally off.
This is a power supply failure.
infocus.dex.com
5E.13440.003
PCBA, POWER BD$78.90
SOURCE: Infocus 4805 problem
Make sure that the lamp plug is properly plugged. 3 flashes indicate this or a faulty lamp.
SOURCE: Infocus mod.610/620 Lite pro
Projector is overheating. Turn the projector off and let it cool for 30 minutes.
Clean the air filter and check all ventilation holes for blockage.
Hope that helps..........
SOURCE: LP120 : fan stopped error
you can purchase and replace the blower assembly- part # 505-1917-00. it's tricky, but you can do it. find an infocus authorized service center form their web site to buy it.
SOURCE: InFocus projector won't turn on
Sound like either the lamp has prematurely failed or the lamp power supply ballast or igniter has failed.
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