Motorola NMN6128B Instructions

(AA)
MOTOROLA
INC.
REMOTE
SPEAKER
MICROPHONE
For SABER™
Handie-Talkie®
Portable Radios
1. DESCRIPTION
The Model
NMN6128B
Remote Speaker
Microphone includes
a
speaker,
a
microphone,
a
push-to-talk
(PTT) switch and
associated
circuitry.
A
cable, terminated with
a special
plug, is
provided for
attaching to the universal connector
on
SABER portable radios.
When the remote speaker
microphone
is
attached
to the radio, the
speaker
in
the radio is
disabled, and receiver audio
is
connected to the
accessory
speaker. Similarly, the
accessory
microphone
is
connected to the transmitter, and
the
accessory PTT
switch can now control the
PTT
function
in
the radio. The radio microphone
and
PTT
switch are still
operational, but
you
can listen
to the radio
only
through the
accessory
speaker.
NOTE
Observe safety information
in
the radio operating
instructions.
2. INSTALLING THE MICROPHONE
a.
Remove the antenna from the radio; unscrew
the antenna
in
the counterclockwise direction.
b.
Insert the tab
on
the microphone's
accessory
connector
(item
25) into
the slot
in
the radio's
universal connector.
c.
Pivot the
accessory connector
toward the
radio
until
its
contacts mate with those
on
the
universal connector, and its mounting
screw
lines
up
with
the universal connector's threaded hole.
Then,
start
the mounting
screw
in
the
hole.
d.
Slide the
accessory bracket
(item
26) down
over the radio's antenna bushing nut.
e.
Insert the antenna adapter (item 4)
into
the
threaded hole
in
the antenna bushing
nut, and
tighten
it firmly
(recommended torque
is
10
in.
Ib.).
f.
Firmly tighten the
accessory connector's
mounting
screw (recommended torque
is
4
in. Ib.).
®
,
Motorola,
SABER, and Handie-Talkie
are trademarks of Motorola Inc.
© 1988
by
Motorola Inc., All
Rights Reserved,
MODEL
NMN6128B,
COILED CORD
g.
Replace
the antenna
by
screwing
it into
the
adapter.
3. OPERATION
a.
While listening to the
accessory
speaker, turn
the radio
on and
operate
it
as
explained
in
the
operating instructions supplied with the radio.
b.
The microphone will
perform
best
if
it is
worn
as shown
in
Figure
1.
MAEPF-17335-O
Figure 1.
4. HANDLING PRECAUTIONS
To
avoid
damage to
circuits, observe the
following handling, shipping,
and servicing
precautions.
a.
Prior to and while
servicing
a
remote speaker
microphone, particularly after moving within the
service area, momentarily place both
hands
on a
bare metal, earth-grounded
surface. This
will
discharge any
static charge which may have
accumulated
on
the person
doing
the service.
NOTE
Wearing
a
conductive
wrist strap (Motorola No.
RSX-
4015A)
will
minimize
static
buildup during
servicing.
WARNING
When wearing a
conductive
wrist strap,
be
careful
near
high
voltage sources. The good ground provided
by
the wrist strap
will
also increase the danger of
lethal
shock from accidentally touching
high
voltage
sources.
Instruction Manual
68P81107C36-0
Portable Products
Division,
8000
W. Sunrise Blvd., Ft. Lauderdale,
FL
33322-9947
Printed
in
U.S.A.
11/88