Іпѕапаіоп; Fl-83Installation; Options Installation; Іпѕїапайоп - Icom IC-1275A Instruction Manual

9-2 UT-34 installation
The optional UT-34 TONE SOUELCH UNIT allows you to
contact specific stations that use a subaudible tone identical
to the pre-programmed tone.
Refer to the UT-34 instruction sheet for operating instruc-
tions.
1) Remove both the top and bottom covers. (Fig. 1)
2) Remove the PA UNIT. (Fig. 1)
3) Install the UT-34 in the spot behind the internal speaker.
(Fig. 2)
4) Connect P46 (6 pins) from the MAIN UNIT to J1 on the
UT-34. (Fig. 2)
5) Connect P47 (5 pins) from the LOGIC and FRONT
UNITS to J2 on the UT-34. (Fig. 2)
6) Replace the PA UNIT and covers.
Fig. 2
9-3 FL-83 installation
This optional filter provides comfortable interference-free
CW communications.
e Refer to Photo 2 of p. 23 for the installation location of
the filter.
e The filter operates regardless of which direction it is
installed in.
OPTIONS INSTALLATION 9
9-4 UT-36 installation
The UT-36 VOICE SYNTHESIZER UNIT announces the
displayed frequency in English from the speaker when
[SPCH] on the front panel is pushed.
e Refer to the UT-36 instruction sheet for operating in-
structions.
e Refer to Photo 2 on p. 23 for installation location of the
unit.
1) Remove the top and bottom covers. (Fig. 1 on p. 23)
2) Remove the PA UNIT.
3) Remove the protective paper from the back of the
UT-36 to expose the adhesive strip, and install the unit.
4) Connect P8 (3 pins) from the MAIN UNIT to J2 (3 pins)
on the UT-36. (Fig. 4)
5) Connect P2 (5 pins) from the LOGIC UNIT to J1 (5
pins) on the UT-36. (Fig. 4)
6) Replace the PA UNIT and covers.
PA UNIT
Space for UT-36
Fig. 4
9-5 CR-263 installation
By replacing the original crystal unit with the CR-263, the
total frequency stability of the transceiver will be improved.
1) Remove the X1 (crystal) installed on the PLL UNIT and
install the CR-263. (Photo 2 on p. 23)
2) Remove P1 of the DOUBLER UNIT from J2 on the
RF-YGR UNIT and connect a frequency counter to P1.
(Photo 2 on p. 23)
3) Set the operating frequency to 1270.0000 MHz and
select FM mode, then adjust the J2 frequency to
1136.3700 MHz with L38 on the PLL UNIT.
4) Replug P1 and replace covers.