I Optional Unit Installation - Icom IC-M604 Instruction Manual

9
CONNECTIONS AND MAINTENANCE

I Optional unit installation

CAUTION: DISCONNECT the DC power cable from the
transceiver before performing any work on the transceiver.
Otherwise, there is danger of electric shock and/or equip-
ment damage.
Follow the case opening procedure shown here when you
want to install an optional unit.
q Remove the 12 screws and open the transceiver.
Torque (0.7 N.m)
50
w Turn the transceiver upside down, then disconnect the flat
cables and Rear mic control (6-pin) from LOGIC board,
and Front mic control (2-pin) and Volume control (3-pin)
from AF board.
Rear mic
(6-pin)
Volume
(3-pin)
Front mic (2-pin)
Flat cable
Flat cables
LOGIC
board
AF board