Maintenance And; Disassembling The - Icom IC-725 Instruction Manual

MAINTENANCE AND ADJUSTMENT 9 ИЕ
8-1 DISASSEMBLING THE ll OPENING THE PA UNIT
TRANSCEIVER
(Fig. 4)
Follow the transceiver disassembly procedures shown here
when you want to install an option or replace a component.
CAUTION: DISCONNECT the DC power cable from
-the transceiver before performing any work
on the transceiver.
Ш REMOVING COVERS
(Fig. 1)
Ш REMOVING THE PA UNIT SHIELD COVER
(Fig. 5) |
1) То remove top and bottom covers, unscrew the 16
screws shown in the diagram. (Fig. 1)
2) Unscrew the 4 screws shown in the diagram before
opening the PA UNIT. (Fig. 2)
3) Unplug 2 plugs from J11 and J12 as shown in the
diagram. (Fig. 3)
Ш PREPARATION FOR OPENING THE РА 4) Disconnect the 8-pin connector from J7 on the PLL
UNIT AND LOGIC UNIT UNIT as shown in the diagram. (Fig. 4)
(Fig. 3)
5) Disconnect the black connector (indicated by 71).
(Fig. 4)
6) Slide up and remove the TUNER CONTROL SOCKET.
(indicated by *2) from the holder. (Fig. 4)
7) Open the PA UNIT as shown in the diagram. (Fig. 5)
8) Unscrew the 16 screws to remove the PA UNIT shield
cover as shown in the diagram. (Fig. 5)
9) To remove the PLL UNIT, unplug the 4 plugs from J4,
Ј5, J6 and J13 on the MAIN UNIT. (Fig. 3)
eSee pgs. 31 and 32 for the plugs connection informa-
tion,
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