Lectrosonics LMa - Manual (Page 6)

LMa
LECTROSONICS, INC. 6
Controls and Functions
Input Jack
The 5-pin (Switchcraft TA5F compatible) input accom-
modates virtually every lavaliere, hand-held or shotgun
microphone available, and most musical instrument
signals. Line level signals can also be accommodated.
(See 5-Pin Input Jack Wiring.)
Power ON/OFF Switch
The Power ON/OFF switch turns the transmitter on and
off. The pilot tone muting system prevents transient
noise (pops, thumps, etc.) from occurring at the receiver
even if the transmitter is abruptly switched on or off.
Power LED
The Power LED glows green when the transmitter is
operating and the battery is good. It turns red when the
battery voltage drops to 6.1 VDC and starts blinking
red when the voltage drops to 5.6 VDC. When using a
recommended lithium or alkaline battery, there will be
about 30 minutes of operating time remaining when the
Power LED first begins blinking red.
Note: A weak battery will sometimes cause
the Power LED to glow green, but it will soon
discharge to the point where it will turn red or go
out completely. If in doubt, replace the battery with
a known new battery. If the Power LED fails to
glow when the transmitter is turned on, replace the
battery.
LiPolymer rechargeable batteries give little or no warn-
ing when they are depleted. If you wish to use these
batteries in the transmitter, you will need to manually
keep track of the operating time to prevent interruptions
caused by dead batteries. Start with a fully charged bat-
tery, then measure the time it takes for the Power LED
to go out completely.
Note: A number of Lectrosonics receivers
incorporate a Battery Timer function which tracks
the amount of time the transmitter signal is
detected. See your receiver manual to determine if
this function is available and, if so, the instructions
on measuring the actual run time of the battery.
Frequency Select Switches
Two 16-position rotary Frequency Select Switches, ac-
cessed through the left side panel, are used to adjust
the transmitter’s operating frequency. These switches
are labeled 1.6M and 100K. The 1.6M switch is used for
coarse frequency adjustments and the 100K is used for
fine frequency adjustment.
Modulation LEDs
The Modulation LEDs provide a visual indication of the
input audio signal level from the microphone or musical
instrument. These two bicolor LEDs can glow either red
or green to indicate modulation levels.
The Modulation LEDs are also used to indicate the
Compatibility Mode when the transmitter is initially
turned on. The Modulation LEDs will blink simultane-
ously:
• Once for 100 Series mode
• Two times for 200 Series mode
• Three times for mode 3
• Four times for Digital Hybrid (400 Series) mode
• Five times for IFB mode
• Six times for mode 6
Audio Level
The AUDIO LEVEL control is used to set the input gain
for the proper modulation.
Antenna
The flexible, insulated galvanized steel cable antenna
supplied with the transmitter is cut to 1/4 wavelength of
the center of the frequency block (the frequency range)
of the transmitter.
Belt Clip
The belt clip may be removed for special applications
by pulling the ends out of the holes in the sides of the
case. An optional hinged belt clip (P/N BCHINGED) is
also available. Contact a Lectrosonics sales represen-
tative, or visit our web site (www.lectrosonics.com) for
more details.
AUDIO LEVEL
control
Power LED
Antenna
Input Jack
Modulation
LEDs
Power
ON/OFF
Belt Clip
Attachment Holes
Frequency Select
Switches
Battery Compartment Door