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MISCELLANEOUS
R699840 - Yunzi+ User Manual 33
Operating LED
ID WARNING
(orange/red)
LAMP
(orange)
STANDBY/ON
(green or red)
Description
7
continuous
red
blinking
orange -
blinks 1 time: the lamp failed to ignite, restart the projector
after a complete cooldown cycle.
blinks 2 times: lamp has shut down during ptojection,
restart the projector after a complete cooldown cycle.
blinks 3 times: lamp cover is open. Check that the lamp
cover is rmly closed.
8
9
10
blinking
orange - -
blinks 1 time: PSU failed.
blinks 2 times: Cooling fans stop.
blinks 3 times: Internal thermal sensor detects overheating.
blinks 4 times: External thermal sensor detects overheating.
11
12
13
14
blinking red blinking
orange -
blinks 1 time: Startup or drive circuits failed.
blinks 2 times: Communication with drive circuit failed.
blinks 3 times: Scaler circuit failed.
blinks 4 times: Electrical lens cover failure.
15
16
17
CAUTION: When in Cool Down mode, do not pull out the plug from the outlet. Also, do not block the air
inlets/exhaust vents by standing the projector on its end or laying it on its side.
16.0 MISCELLANEOUS
16.1  RS-232C protocol
Serialcommunicationspecications
Control of this unit is possible using a computer or automation device connected with a RS-232 cross cable
(female - female D-sub 9 pins cable) or LAN/ RJ-45 cable. Communication specications for this unit are as
follows:
Baud Rate 19200 bps
Data Format Binary
Mode Asynchronous
Parity None
Start Bit 1 bit set to high
Stop Bit 1 bit set to low
X on/off None
Flow Control None
RS-232C pin assignation
Pin Signal Function Signal Direction
2RxD receive data PC -> Projector
3TxD transmit data Projector -> PC
5GND ground -
1, 4, 6-9 NC - -
Command Format
Header 1 Header 2 Command Command Data End of Data
21h 89h 01h 2 - 4 bytes variable 0Ah
Header 1 : 21h for operating commands or 3Fh for reference command.
Header 2 xed to 89h 01h
1
6
5
9
33


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