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Internal Boards and Switch Settings
10
a TR-132 board
A S1 switch
Available in near future. Set this switch to OFF.
b MA-128 board
A S1 switch
Available in near future. Set this switch to OFF.
B S2 switch
Set to ON only when supplying AC power to the
microphones connected to the AUDIO IN CH 1/2
connectors. Normally, set this switch to OFF.
C S3 switch
Set according to the microphone type of the headset
connected to the INCOM 1 connector.
DYN: Dynamic-type microphone
CM: Carbon-type microphone
D S4 switch
Set to ON when an unbalanced-type headset is connected
to the INCOM 1 connector.
E S5 switch
Sets the gain for the headset connected to the INCOM 1
connector.
+ : Sets the gain 6 dB above the standard level.
0 : Standard level.
– : Sets the gain 6 dB below the standard level.
Normally, set this switch to 0.
F S6 switch
When set to ON, the audio signals input from the AUDIO
IN CH 1/2 connectors are mixed to the imtercom audio and
output to the INCOM 1 connector. This switch is factory-
set to OFF.
G S7 switch
When set to ON, the audio signal input from the
TRACKER connector is mixed to the imtercom audio and
output to the INCOM 1 connector. Normally, set this
switch to OFF (center position).
H S8 switch
Specifies whether the VR of the INCOM 1 is used for
serial mix or parallel mix. Normally, set this switch to OFF.
I S10 switch
This switch is used for the intercom system connected to
the INCOM 1 connector. Normally, set this switch to
NORM.
S1
A S1 switch
S1
S6 S8
S7
S10
S14 S13
S12 S11
A S1 switch
I S10 switch
J S11/S12 switches
G S7 switch
F S6 switch
H S8 switch
B S2 switch
C S3 switch
D S4 switch
E S5 switch
K S13/S14 switches
qs S15 switch