Maintenance And Adjustment - Icom IC-707 Instruction Manual

Í MAINTENANCE AND ADJUSTMENT
For internal maintenance and optional installation,
disassemble the transceiver according to the follow-
ing procedures.
Removing top and bottom covers
Unscrew 12 screws. (Fig.1)
Removing PA unit cover
Unscrew 11 screws. (Fig. 2)
Removing the front panel
Unscrew 4 screws. (Fig. 3)
Screw for
the MAIN
unit
CAUTION: DISCONNECT the DC power
cable from the transceiver before performing any
internal work.
Removing the MAIN unit
Disconnect coaxial cables from J1, J2, J3. Pull out
J3 cable from the cooling fan. Disconnect flat
cables from J9, J10. Unscrew 8 screws. (Fig. 4)
Unscrew 1 screw from the rear panel. (Fig. 3)
"y+ Refer to
Fig.6
below.
: Screw
locations
Pull out
J3.
Removing the PLL unit
Disconnect the coaxial cable from J4. Unplug the
flat cable from J3. Unscrew 5 screws. (Fig. 5)
PLL unit
{ 3 : Refer to
Fig.6
below.
@ : Screw
locations
Removing flat cables
Remove flat cables J9, J10 on the MAIN unit and
J3 on the PLL unit. (Fig. 6)
© Pull out the
connector tab.
@ Remove the
flexible cable.