Optoma EP1690 Service Manual page 57

No Step
8 Next
9 Next
0 Check
Firmware
Procedure
Proceeding Picture
. When Firmware
Upgrade Process is
finished, the LED
power light on.
2. Unplug USB Cable
and Power Cord.
Re-plug in Power
Cable.
Restart the unit and get
into the Service Mode
to check the Firmware
Version.
Note:
For getting into Service
Mode, please refer to
Chapter 4 Function Test
and Alignment Procedure.
EP690 / OP280 / OP40
5-9
Photo