BOXLIGHT PRO80S3 User Manual page 3

1.3 Power Sequencing
1.3.1 STANDBY
When the main power switch is turned ON, the projector comes up in STANDBY mode. It may be left in this state
indefinitely. Both controllers and the RS-232 circuitry are powered so that the unit can respond to serial commands, the IR
Remote Control or the rear panel switch. The ballasts, fans and formatters are not energized.
Note: The IR Remote POWER button is always active but the other buttons may be disabled. If the unit is powered up
using the IR Remote, all IR commands will be enabled. If the unit is powered up using the rear panel switch or via the
serial port, only the IR POWER button will be active. IR Remote buttons may be enabled or disabled with the IR+ and IR-
serial commands.
The projector may then be powered UP or DOWN using any of the methods above. The rear panel switch is
multifunctional. The following operation description assumes that the main power switch is ON:
If the projector is in STANDBY, the multicolor LED to the left of the switch will glow RED and on the 8 LED status display,
the READY LED will be ON. (
may be flashing .) Depressing the left side of the switch momentarily (1/2 second or more) will power up the unit, turning on
the lamp and initializing the formatters. The multicolor LED will glow GREEN. The projector will come up in CURTAIN
projection mode with the shutter closed. The STATUS LEDs will display the progress of the power-up sequence. When all
of the LEDs except for the SHUTTER LED are lit, the shutter may be opened.
1.3.2 POWER ON
If the projector is POWERED UP, a momentary depression of the right side of the switch (1/2 second or more) will open
the SHUTTER and put the formatters in NORMAL PROJECTION MODE. Subsequent depressions will toggle between
NORMAL MODE/SHUTTER OPEN and CURTAIN MODE/SHUTTER CLOSED.
Depressing the left side of the rocker switch will cause the SHUTTER to close and the formatters to go to CURTAIN
MODE and also initiates a 5-MINUTE POWER DOWN cycle. During this time the lamp, fans and formatters remain active.
The multicolor LED will glow YELLOW (both the RED and GREEN are ON). The STATUS LEDs should all be ON except
for SHUTTER. If no other action is taken for the next 5 minutes, the projector will go through the 60 SECOND POWER
OFF sequence: the lamp is extinguished and the fans are left running for 60 seconds before going back to STANDBY. If
the shutdown was not due to some anomaly, e.g., a fan failure, all of the STATUS LEDs will be OFF. If there was an
anomaly, one or more may be flashing.
The READY LED will go OFF when the lamp is extinguished. It will go back ON after 90 seconds indicating that the lamp
may be re-struck. A command to re-strike via any of the three methods - serial, IR or switch – may be issued at any time
but the re-strike will not occur until the 90-second lamp cool-down has expired.
1.3.3 5 MINUTE POWER DOWN
If the projector is in the 5 MINUTE POWER DOWN sequence, a momentary depression of the left side of the switch (1/2
second or more) will initiate the 60 SECOND POWER OFF sequence. The 5 MINUTE POWER DOWN may be canceled
by issuing an ON or OPEN command through the serial port, by depressing the right side of the rocker switch or – if the IR
remote is enabled - depressing the BLANK button to open the SHUTTER. The multicolor LED will again glow GREEN.
1.3.4 60 SECOND POWER OFF
The 60 SECOND POWER OFF sequence first extinguishes the lamp, extinguishes the STATUS LEDs and resets the 90
second lamp cool-down timer. No re-strike will be permitted until it times out. If no further action is taken, after 60 seconds
the main power will be turned off – the fans go OFF - and the projector will be back in STANDBY.
Commands to restart the projector may be issued before the 60 SECOND POWER OFF sequence completes: serial ON
command, IR POWER button or left rocker switch. 60 SECOND POWER OFF will be canceled but the lamp will not re-
strike until the 90 second cool-down period has expired. The POWR STATE LED will show GREEN.
BOXLIGHT PRO80S3 Projector Preliminary User's Manual
If there were any problems encountered during the previous power-on cycle, other LEDs
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