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
