Icom IC-F3021S - Manual (Page 7)

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SECTION 4 OPTIONAL UNIT INSTALLATION
CAUTION! Optional unit installation should be done at authorized Icom servise center only.
Install the optional unit as follows.
q Rotate [VOL] to turn the power OFF, and remove the
battery pack.
w Remove the unit cover as below. (The removed unit
cover can not be used again.)
UT-108R
UT-109R
UT-110R
NOTE: When uninstalling the unit
Be sure to re-solder the cut points as below when you
remove the unit. Otherwise, no transmit modulation or
receive AF output is available.
“DISC”
“MIC”
e Cut the pattern on the PC board at “MIC” and “DISC”
as below. (This modification is not necessary for
UT-108R installation.)
r Install the unit as below.
Re-solder
t Remove the paper backing of the supplied unit cover,
and attach the unit cover and the battery pack, then
rotate [VOL] to turn the power ON.
y Set or modify the scrambler or decoder settings using
optional CS-F3020.