Icom IC-730 Maintenance Manual page 28

6 – 3 – 6 INSTALLATION OF THE FL-30
1. INSTALLATION PROCEDURE
(1) Loosen two retaining screws of the upper sub-chassis,
and turn the sub-chassis over around hinges on the other end
as shown in the photo.
(2) Unscrew the screws retaining the 2nd I F unit board, then
turn it over so that foil side of the board can be seen.
(3) The location for the filter is shown in the photo. The holes
for mounting the legs and the leads of the filter are predrilled.
Be sure to orient the filter $0 that the input terminal (indicated
on the bottom) of the filter is facing the same direction as
shown on the photo.
Insert the filter flush with the board, bend the leads and legs
flush with the opposite side of the board and solder them In.
Trim the leads even with the solder point. This completes the
installation.
(4) Replace the 2nd IF unit, and unplug P3 inserted to J7 on
the unit, then plug it to J8.
(5) Replace the sub-chassis by the reverse procedure of (1).
No adjustment is required, and the filter provides the Pass-
Band Tuning system.
6 – 3 – 7 INSTALLATION OF THE FL-45
1. INSTALLATION PROCEDURE
(1) Install the filter by the same procedure of the FL-30.
(2) The location for the filter is shown on the photo of 6-3·6.
(3) After replacing the 2nd IF unit board, unplug P2 inserted to
J5, then plug it to J6 on the 2nd I F unit board.
(4) No adjustment is required, and the filter provides
5OOHz/6 dB pass-band.
6 – 8