Lectrosonics SMV - Manual (Page 11)

Super-Minature Belt Pack Transmitter
Rio Rancho, NM 11
The wiring diagrams included in this section represent
the basic wiring necessary for the most common types
of microphones and other audio inputs. Some micro-
phones may require extra jumpers or a slight variation
on the diagrams shown.
It is virtually impossible to keep completely up to date
on changes that other manufacturers make to their
products, thus you may encounter a microphone that
differs from these instructions. If this occurs please call
our toll-free number listed under Service and Repair in
this manual or visit our web site at:
www.lectrosonics.com
SM Equivalent Input Circuit Wiring
10k
1k
5
4
3
2
1
To Virtual Ground
Audio Amplifier
BIAS
MIC
BIAS SELECT
LINE IN
GND
+
30uF
+5 VDC
Servo Bias
Pin 4 to Pin 1 = 0 V
Pin 4 Open = 2 V
Pin 4 to Pin 2 = 4 V
+
To Limiter Control
30uF
500 Oh
m
100 Ohm
2.7K
200 Ohm
+
3.3uF
100 Ohm
5-Pin Input Jack Wiring
Audio input jack wiring:
PIN 1 Shield (ground) for positive biased electret lava-
liere microphones. Shield (ground) for dynamic
microphones and line level inputs.
PIN 2 Bias voltage source for positive biased electret
lavaliere microphones.
PIN 3 Low impedance microphone level input for
dynamic microphones. Also accepts hand-held
electret microphones provided the microphone
has its own built-in battery.
PIN 4 Bias voltage selector for Pin 3. Pin 3 voltage (0, 2
or 4 volts) depends on Pin 4 connection.
Pin 4 tied to Pin 1: 0 V
Pin 4 Open: 2 V
Pin 4 to Pin 2: 4 V
PIN 5 High impedance, line level input for tape decks,
mixer outputs, musical instruments, etc.
Installing the Connector:
1) If necessary, remove old connector from microphone
cable.
2) Slide Rubber Boot onto microphone cable with the
large end facing away from the microphone. (See illus-
tration above.)
3) If necessary, slide the 1/8-inch black shrink tubing
onto the mircrophone cable. (This tubing is needed
for some cables to ensure the cable fits snugly in the
rubber boot.)
4) Use the resistors and connector included with this kit
to configure the TA5F to your particular microphone.
(See Wiring Diagrams below.) A length of .065 OD
clear tubing is included if insulating the resistor leads
or shield wire is necessary. (Remove rubber strain
relief from connector backshell by pulling it out of the
backshell.)
5) Slide the Strain Relief over the TA5F Insert and crimp
as shown to the right. Then insert the TA5F Insert
and Strain Relief in the TA5F Latchlock. Screw the
TA5F Flex Relief onto the TA5F Latchlock.
6) If needed, position and shrink the 1/8-inch shrink tub-
ing on the microphone cable, then slide the Rubber
Boot down over the TA5F connector.
TA5F Latchlock
Insert
Insulator
Strain Relief
TA5F Backshell
with Strain Relief
Remove strain relief
if using dust boot
TA5F Backshell
(Strain Relief
removed)
Dust Boot (P/N 35510)
Note: If you use the dust boot, remove the
rubber strain relief that is attached to the TA5F
cap, or the boot will not fit over the assembly.
SMKITTA5 Connector kit for SMV series
transmitters, 5-pin TA5F plug with sleeve