Icom IC-720 Instruction Manual page 29

SECTION VIII.
‚8-1 FILTERS FOR АМ апа CW NARROW
The following tools are needed for the installation of all
options:
Diagonal cutters
Soldering Iron (40W)
Soldering tool
Phillips Screwdriver
Screwdriver
Solder
De-soldering braid
Before performing any work on the set, make sure that the
power cord is detached from the transceiver.
1. Remove the bottom cover.
2. Remove the four bolts at each end of the IF Unit (see
photo). Tilt the unit back toward you, being careful not
to damage the sockets and plugs that are installed at the
bottom of the IF Unit. `
3. Using the screwdriver pry the cover of the IF Unit off,
exercise Care to prevent bending the shield cover.
—27—
8-1-1
installation of CW Narrow Filter
Location of CW Narrow Filter
ves „г
әже
8-1-2
Follow steps 1 through 3 of the CW Narrow Filter instruc-
tions.
Remove
the LC Filter parts (coil and capacitor
shown
in photo),
taking care not to damage the printed
pattern of the board.
The holes must be clear of solder
when these components are removed.
Installation of AM Filter