I Optional Ut-109/Ut-110 Installation; Connection And Maintenance - Icom IC-F620 Instruction Manual

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CONNECTION AND MAINTENANCE

I Optional UT-109/UT-110 installation

Install the optional UT-109 and UT-110 as shown below:
q Turn power OFF, then disconnect the DC power cable.
w Unscrew the 4 screws, then remove the bottom cover.
e Remove the unit pre-installed at the factory.
r Cut the print pattern on the PCB at the TX mic circuit (A)
and RX AF circuit (B) as shown below.
7
t Install the scrambler unit.
y Replace the bottom cover and screws, then the DC power
cable.
Front panel
NOTE: Be sure to re-solder
the disconnected points at
left, otherwise no TX modu-
lation or AF output is avail-
B
able when you remove the
scrambler units.