Power Off Sequence
1. Press power off.
2. A/V is muted.
3. Power LED blinks yellow.
4. Color wheel stops.
5. 3 of 4 internal light box LEDs darken.
6. Lamp goes off 10 seconds after pressing the power-off button but both fans stay
on.
7. After the lamp turns off, the Microprocessor counts 20 more seconds, and then
opens the power relay, so that only the standby 7Vdc remains active (fans and
lights go off).
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