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4-4
MICROPHONE
The
supplied
HM-36
electret
condenser
hand microphone
or
optional
SM-8
or
SM-10
desk
microphone
may
be
used.
Merely
plug
it
into
the
MICROPHONE CONNECTOR
on
the front
panel.
If
you
wish to
use
a different
microphone,
make
certain
it
has the
proper
output
level.
Particular care
must
be
exercised
when
wiring
a
different
microphone
since
the
transceiver internal
electrical
switch-
ing
system
is
dependent
upon
the
correct
connections.
See
SECTION
3
-
1
FRONT PANEL
Item
®
for
MIC
CONNECTOR
connections.
4-5
CW
KEY
For
CW
operation,
connect
a
CW
key
to the
KEY JACK
using the
supplied standard 1/4
inch,
3-conductor
plug.
See
the diagrams
for
connection
details.
Note
that the
keyed
voltage
when
switching with
semiconductors
or
relays
with
resistors
in
the
circuit
must
be
less
that 0.4
volts.
4
-
6
POWER
SUPPLY
When
an
AC
power
supply
is
required,
the
IC-PS35
internal
power
supply, or the
IC-PS30
or
IC-PS15
external
power
supply with
matching
size
and
style
is
recommended.
CAUTION:
Voltages
greater
than 15
volts
DC
may
damage
this
transceiver.
Check
the source voltage before con-
necting the
power
cable
when
using
with
non-ICOM
AC
power
supplies.
•AC
OPERATION WITH THE
IC-PS30
-
16
-
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