Question about Optoma ML300 Mobile LED Projector
When turning on the projector it shows the Optoma logo but will not boot to the home screen. A little fan appeared while in use it shut down and hasn't loaded the home screen since. Both fans are working.
Depends on the model. If you saw a little fan, then there is a fan problem. There might be 3 fans. 2 square ones and one blower fan. Look for plugs with 3 wires(red/white/black or red/yellow/black). Those will lead to the fans from the mainboard. Occasionally the fan will spin but the tachometer lead will stop reporting the fan status and the projector shuts down. To being with I would clean out the projector fans and ducts thoroughly. That may clear up the issue. Otherwise there is a button press sequence to enable the service menu, but you cannot upload new firmware without special optoma software that isnt available. Another possibility is you have failing filter capacitors in the power supply. Be careful poking around under the hood. There is lethal high voltage possibly stored even when unplugged.
Posted on Nov 26, 2014
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Posted on Jan 02, 2017
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