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10
-3 IC-EX310
VOICE SYNTHESIZER
UNIT
After being
installed,
the voice synthesizer
announces
the displayed
frequency
when
the
SPEECH SWITCH
on
the front panel
is
pushed.
•
INSTALLATION
1
)
Turn
the
transceiver
upside
down.
2)
Install
the
IC-EX310
unit
as
shown
in
the
photo
using the
four
supplied screws.
Insert
the
2-pin
plug
shown
in
the
photo
into
J2
of the
IC-EX310ui^it.
3)
Plug the 8-pin plug
from
the
IC-EX310
into
J12 on
the
LOGIC
unit.
4)
Adjust the
volume and
speech speed
if
necessary.
The
procedure
is
described below.
5)
Replace
the
top and
bottom
covers
on
the IC-751 A.
•ADJUSTMENT
1)
Adjust the speech-volume
and
speech
speed,
if
necessary,
before
the
top and
bottom
covers are replaced.
2)
Connect
a
power
source to the
transceiver
and
turn
ON
the
POWER
SWITCH.
Push
the
SPEECH SWITCH
on
the
transceiver
to
have the displayed frequency
announced
in
English.
3)
The volume
of the
announcement
is
adjustable
with
R16
on
the
voice synthesizer.
Adjust
R16
for
a
comfortable audio
level.
4)
The
W1
jumper
wire controls the speech speed.
Cut
W1
to
increase
the speech speed.
5)
Replace the top
and bottom
covers of the
transceiver
when
adjustments
are
completed.
10-4
CR-64
HIGH-STABILITY
CRYSTAL
UNIT
•
INSTALLATION
1
)
Turn
the
transceiver
upside
down.
2)
Unscrew
the
six
screws
retaining
the
PLL
board.
Unplug
the
connectors
indicated
in
the photo, then turn the
board
over to
view
the printed
circuit
side.
3)
Using
de-soldering
braid,
remove
the solder
from
the
original
crystal
unit terminals
and grounding
lead.
Remove
the
original
crystal
unit
and grounding
lead
from
the board.
4)
The mounting
location for the
high-stability crystal
unit
is
shown
in
the photo.
The
holes for the unit terminals are
predrilled.
If
the holes
are
filled
with
solder,
remove
the
solder using desolder-
ing braid.
-47 -
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