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Refit the CPU module.
Plug the projector into the wall outlet and set the front MAIN POWER switch to ON.
Check that the LED to the left of the RS-232C-OUT port is lit red.
CM
Restoring the original RS-232C-OUT port function
If the projector power is ON, turn it OFF by pressing the remote-control
(or on the projector)
POWER key, and wait for approximately 5 minutes until the cooling fan stops.
Set the front MAIN POWER switch of the projector to OFF, then unplug the projector from the supply outlet.
Remove the CPU module.
Remove the connector that connects CM9 to CM10, then use the same connector to connect CM8 to CM9.
Refit the CPU module.
Plug the projector into the wall outlet and set the front MAIN POWER switch to ON.
Check that the LED to the left of the RS-232C-OUT port is lit green.
CM
CM
IN
IN
IN OUT
OUT
REMOTE IN2
REMOTE IN1
RE232C/RS422
RS232C(G)
RS422(R)
RS232C(G)
RS422(R)
LED indicator
IN
IN
IN OUT
OUT
REMOTE IN2
REMOTE IN1
RE232C/RS422
RS232C(G)
RS422(R)
RS232C(G)
RS422(R)
LED indicator
Converting the RS-232C-OUT port into an RS-422-OUT port
If the projector power is ON, turn it OFF by pressing the remote-control (or on the projector)
POWER key, and wait for approximately 5 minutes until the cooling fan stops.
Set the front MAIN POWER switch of the projector to OFF, then unplug the projector from the supply outlet.
Remove the CPU module.
See “ Converting the RS-232C-IN port into an RS-422-IN port”.
Remove the connector that connects CM8 to CM9, then use the same connector to connect
CM9 to CM10.
CM
No connection
Transmit data terminal (–)
Receive data terminal (+)
Internally connected to pin 6.
No connection
Internally connected to pin 4.
Transmit data terminal (+)
Receive data terminal (–)
Ground
Pin no.
1
2
3
4
5
6
7
8
9
Pin function
NC
TXD(
–
)
RXD(
+
)
–
NC
–
TXD(+)
RXD(–)
FG
Description
RS-422-IN
No connection
Receive data terminal (–)
Transmit data terminal (+)
Internally connected to pin 6.
No connection
Internally connected to pin 4.
Receive data terminal (+)
Transmit data terminal (–)
Ground
Pin no.
1
2
3
4
5
6
7
8
9
Pin function
NC
RXD(–)
TXD(+)
–
NC
–
RXD (+)
TXD (–)
FG
Description
RS-422-OUT
RS-422 port pin functions
CM8
RS-232C-OUT
RS-422-OUT
CM9
CM10
CM5
RS-232C-IN
RS-422-IN
CM6
CM7
JST JEY-9S-1A3F
Selecting the RS-422 Serial Interface
(continued)