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ICOM IC-FR3000 Instruction Manual: Optional Unit Installation; I Opening The Repeater's Case; I Voice Scrambler Unit Installation

Vhf/uhf fm repeater.
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I Opening the repeater's case
Follow the case and cover opening procedures shown
here when an optional unit is installed or adjust the in-
ternal units, etc.
CAUTION: DISCONNECT the AC power cable
and/or DC power cable from the repeater. Other-
wise, there is danger of electric shock and/or equip-
ment damage.
q Remove 6 screws from the top of the repeater and
4 screws from the sides, then lift up the top cover.
w Turn the repeater upside down.
e Remove 6 screws from the bottom of the repeater,
and 4 screws from the sides, then lift up the bot-
tom cover.
I Voice scrambler unit
The UT-109 (#01)/UT-110 (#01) provides high perfor-
mance private communication for base operating
mode. In order to receive or send scrambled trans-
missions, the UT-109 (#01)/UT-110 (#01) must be in-
stalled and to activate the scrambler function.
q Remove the top and bottom covers as shown
w Remove 8 screws from the LOGIC shielding plate,
then remove the plate.
e Cut the pattern on the PCB at the RX AF circuit
(CP1) and TX mic circuit (CP2) on the LOGIC unit
as shown at right.
NOTE: Be sure to re-solder
above disconnected points,
otherwise no TX modulation or
AF output is available when
you remove the scrambler unit.
r Turn the repeater upside down, then install the
scrambler unit as shown below.
t Return the LOGIC shielding plate, top and bottom
covers to their original positions.


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