68
Installation of Optional Accessories
Optional Filters YF-122S/YF-122C/YF-122CN
1. Turn the transceiver’s power off by pressing and holding in the
switch for 1/2 sec-
ond, then remove the
FBA-28
Battery Case or
SBR-32MH
Ni-MH Battery Pack from
the transceiver. Additionally, disconnect the DC cable from the
INPUT: 13.8V
jack on
the rear panel of the transceiver, when operating the
FT-818
with a DC power supply.
2. Referring to Figure 1, remove the shoulder belt bracket and its two screws from both
side of the transceiver, then remove the five screws affixing the top case of the trans
-
ceiver, and remove the top case; disconnect the speaker’s connector when you remove
the top case.
3.
Refer to Figure 2 for the mounting locations for the optional filters. Position the filter so
that its connectors are aligned with the mounting pins on the board, and push it into
place.
4. Replace the top case (remember to replace the internal speaker’s plug), and connect
the
FBA-28
Battery Case or
SBR-32MH
Ni-MH Battery Pack (and/or attach the DC
power supply), and turn the transceiver on by pressing and holding in the
switch.
5. Change the setting of Menu #38 (OP FILTER) to “SSB” (if installing the YF-122S), or “CW”
(for the YF-122C/YF-122CN).
6. Filter installation is now complete.
BAND
DWN
UP
MODE
A
B
C
Figure 1
BAND
DWN
UP
MODE
A
B
C
YF-122S/YF-122C/YF-122CN
Mounting Location
Speaker's Connector
Optional Filter
MAIN Unit
Figure 2