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OPERATION
ALTERNATE MICROPHONES AND INSTALLATION
For best resus.
the user should
select a law-imcdocce dynamic
type microphone or a
transistorized
microphone.
The
microphones must be
provided with a four-lead
cable. The
audio
conductor
and
Its shielded lead comprise two
of
the
leads.
The third lead Is for transmit
control and
fourth
is
for receiving Control
The
microphone
should
provide
the functions shown in the
schematic
below
4 WIRE MIC CABLE
Pin Number
Mic
Cable Lead
Audio Shield
2
Audio Lead
3
Transmit Control
4
Receive
Control
-
IE7rL~
MIC
Fig. 1 Microphone Sctietrlalic
If the
microphone to be used is provided
with pre-cut leads, they roust be revised
as
follows.
1. Cut leads
so that
they extend
7/1
61 beyond the plastic
insulating jacket of the microphone
cable.
2. All leads
Should
be cut to
the same length. Strip the ends of
each
wire
1/81, and dn the
exposed
wire.
OPERATION
Before
beginning the
actual
wiring,
road
carefully the circuit and
wiring information provided
with the
microphone you select.
Use
the minimum heat required in soldering the
coSnectlons.
Keep the exposed who
lengths
to a minimum to
avoid
shorting
when
the microphone plug is
reassembled.
HOUSING
KNURLED sires
PIN RECEPTACLE
—
/
RETAINING SCOEW
caute
CLANP
RETAINER SCREW(2)
A. MICROPHONE CONNECTOR ASSEMOLY
WASHER
B. MICROPHONE CONNECTOR DISASSEMBLED FOR WIRING
FIR. a Microphone plug
wiring
To wire
the microphone
cable to
the plug
provided, proceed as follows:
1. Remove the retaining screw.
2. Unscrew the housing
from the
pin receptacle body.
3, Loosen the
two cable
clamp
retainer
screws.
4.
Feed
the microphone
cable through
the housing, knurled ring
and
washer as shown
In
Figure 2.
-ID.
-11.
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