Lectrosonics SM - Manual (Page 13)

Super-Minature Belt Pack Transmitter
Wiring Hookups for Different Sources
In addition to the wiring hookups illustrated below, Lec­
trosonics makes a number of cables and adapters for
other situations such as connecting musical instruments
(guitars, bass guitars, etc.) to the transmitter. These
cables can be found in our UHF or Accessories cata­
logs. Visit www.lectrosonics.com, or contact the factory
for more information.
The most radical change is that pin 4 is now a voltage
selector pin. The diagrams in the section labeled “Works
with SM only” are specific to the SM transmitter and
make wiring a Countryman B6 or E6 or a three wire
microphone such as a COS-11 very quick and easy.
However, these wirings won’t work with older Lectroson­
ics transmitters such as the UM400, UM200, etc. If you
need the two wire Countryman B6 or any three wire mic
to work with both older transmitters as well as with the
SM go to the section below, labeled, “Compatible with
SM and other Lectrosonics Transmitters.”
Sanken Cos-11 microphones, the Lectrosonics M150
and other three wire microphones to be used with the
Works with SM Only:
NOTE: This wiring is NOT compatible with other
Lectrosonics transmitters such as early LM and UM
SM will require new wiring. If the wiring is not changed,
they will have much higher output than usual and extra
distortion at high levels. The reason is that the source
follower wiring used with the UM200 and UM400 series
is not compatible with the SM virtual ground input. The
second diagram in the “Compatible with SM and other
Lectrosonics Transmitters” section shows a compatible
wiring that will work with all 5-Pin Lectrosonics transmit­
ters. This wiring converts the three-wire microphone to
a two wire system without changing the audio quality.
(The microphone polarity will be reversed so you may
want to enable the phase switch on the Lectrosonics re­
ceiver.) This wiring is electrically equivalent to the easy
wiring in the “Works with SM only” section.
All two-wire mics (except the Countryman B6 and E6)
such as the MKE-2 and the Lectro M152 will work with
the SM with no changes. The two wire setup is shown
in the third diagram in the “Compatible with SM and
other Lectrosonics Transmitters” section.
NOTE: This wiring is NOT compatible with other
Lectrosonics transmitters such as early LM and UM
Series models.
Compatible with SM and other Lectrosonics Transmitters:
Compatible Configuration for
COUNTRYMAN E6 Headphone and B6 Lavaliere Mics
PIN
SHIELD
AUDIO 2 WIRE ELECTRET MIC
POSITIVE BIAS
1.5 k
1
2
3
2 V BIAS SHOWN 3.3 k
1
2 3
4 5
4 TA5F
transmitters, such as the LM or UM series.)
(This wiring is fully compatible with other Lectrosonics
5 PLUG
Compatible Configuration for 3-wire Lavaliere Microphones That
Require an External Resistor (such as Cos-11)
PIN
5
4
3
2
1
SHIELD
AUDIO
BIAS
3 WIRE ELECTRET MIC
POSITIVE BIAS
4 V BIAS SHOWN
1
2 3
4 5
TA5F 3.3 k
PLUG
(This wiring is fully compatible with other Lectrosonics
transmitters, such as the LM or UM series. This is the
UNBALANCED LINE LEVEL SIGNALS
SLEEVE
SHIELD
A UDI O
TIP
LINE LEVEL
RCA or 1/4” PLUG
1
2 3
4 5
For signal levels up to 3V (+12 dBu) before limiting. Fully
compatible with 5-pin inputs on other Lectrosonics transmitters
such as the LM and UM Series. A 20k ohm resistor can be
inserted in series with Pin 5 for an additional 20 dB of
BALANCED AND FLOATING LINE LEVEL SIGNALS
TA5F XLR JACK
tapped to ground, such as on all Lectrosonics PLUG
*NOTE: If the output is balanced but center
receivers, do not connect Pin 3 of the XLR jack
PIN
1
2
3
4
T A5 F
5 PLUG
wiring for the Lectrosonics M152 lavaliere.) to Pin 4 of the TA5F connector.
Fully Compatible LO Z Microphone Input Wiring
3
1 2
PIN PIN
SHIELD 1 1
1
2 3
4 5
2 2
3 3
4
DYNAMIC Dynamic LO Z mic or electret with
MIC LEVEL TA5F
manufacturer’s power supply. 5 PLUG
Rio Rancho, NM 13