OptOnal Ut-108 NstallatOn; OptOnal Ut-109/Ut-110 NstallatOn - Icom IC-F521 Instruction Manual

3
CONNECTION AND MAINTENANCE
■ Optional UT-108 installation
Install the optonal UT-108 unt as follows:
q Turn power OFF, then dsconnect the DC power cable.
w Unscrew the 4 screws, then remove the bottom cover.
e Install the unt as shown n the dagram below.
r Replace the bottom cover and screws, then the DC
power cable.
15
UT-108
■ Optional UT-109/UT-110
installation
q Turn power OFF, then dsconnect the DC power cable.
w Unscrew the 4 screws, then remove the bottom cover.
e Cut the prnt pattern on the PCB at the TX mc crcut (A)
and RX AF crcut (B) as shown n the followng figure.
r Install the scrambler unt as shown n the left.
t Return the bottom cover and screws to the orgnal pos-
ton.
A
NOTE: Be sure to re-solder above
dsconnected ponts, otherwse no TX
modulaton or AF output s avalable
when you remove the scrambler unts.
Front panel
B