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Internal Boards and Switch Settings
12
When a one ear headset is used, set the S11-3 and S11-4
switches to ON.
H S13/S14 switches
These switches select the audio to be mixed with the
program audio output to the INCOM 2 connector.
When a one ear headset is used, set the S13-1 and S13-2
switches to ON.
I S101 switch
Selects the item to be mixed with the battery alarm signal.
J S201 switches
Sets the talk level through the TRACKER connector.
– 20: Decreases the level by 20 dB.
0 : Standard level.
Normally, set this switch to 0.
K S251/S252 switches
These switches select the audio to be output to the
EARPHONE jack.
L S253 switches
These switches select the audio to be output to the
TRACKER connector.
d DM-139 board
A S301 switch
Selects the direction of the prompter signal flow. The
signal flow direction must also be changed on the CCU.
RX: The video signal from the CCU is output from the
PROMPTER connector (factory-setting).
REM: Available in near future.
TX: The video signal input to the PROMPTER connector
is output to the CCU. Note that the CCU-550D/550DP
does not support this function.
B S302 switch
Selects the signal to be output from the PROMPTER
connector.
PROMPT: Prompter video signal is output (factory-
setting).
RET: Return video signal is output.
e MB-1019 board
S11-4 Program audio 2 OFF
S12 Tracker audio OFF
Switch Audio to be mixed Normal setting
S13-1 Audio from INCOM 1 OFF
S13-2 Audio from INCOM 2 OFF
S13-3 Program audio 1 ON
S13-4 Program audio 2 ON
S14 Tracker audio OFF
Switch Item to be mixed Normal setting
S101-1 Battery alarm signal ON
S101-2 TEMP OFF
S101-3 FAN STOP OFF
Switch Audio to be output
S251-1 Audio from INCOM 1
S251-2 Audio from INCOM 2
S251-3 Program audio 1
S251-4 Program audio 2
S252 Not used.
Switch Audio to be output
S253-1 Audio from INCOM 1
S253-2 Audio from INCOM 2
S253-3 Program audio 1
Switch Audio to be mixed Normal setting
S253-4 Program audio 2
Switch Audio to be output
S1
S2
B S302 switch
A S301 switch
S301
S302
B S2 switch
A S1 switch