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I Optional UT-109 /UT-110
installation
q Turn the power OFF, then disconnect the DC power cable.
w Unscrew the 4 screws, then remove the bottom cover.
e Cut the pattern on the PCB at the TX mic circuit (MIC) and
RX AF circuit (DISC) as shown below.
r Install the scrambler unit as described in optional UT-108
installation in the page at left.
t Return the bottom cover and screws to the original posi-
tion.
MIC
DISC
NOTE: Be sure to re-solder the
above disconnected points when
you remove the scrambler units.
Otherwise no TX modulation or
AF output is available.
CONNECTION AND MAINTENANCE
I Optional OPC-617 installation
Install the OPC-617 as shown below.
Front panel
OPC-617
Cut off the bushing as in the illustra-
tion, when you install the optional
OPC-617.
OPTIONAL CABLE PIN ASSIGNMENT
t r e w q
o i u y
q
y
Dimmer cont. IN or
Horn drive cont. OUT
IGSW cont. IN
u
AF GND
w
i
AF OUT
Det. AF GND
e
o
Det. AF OUT
Mod. GND
r
Mod. IN
t
PTT control IN or
FTSW control IN
3
12
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