8
LM
LECTROSONICS, INC.
Frequency Select Switch
Settings (C,C)
0 1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0 1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
Modulation
LEDS
Power LED
Power ON/OFF
switch
1.6M 100K
SELECTING COMPATIBILITY MODE
The LM transmitter is based on Digital Hybrid Wireless
™
technology, but is also capable of working with Lectrosonics
200, 100 and IFB series analog receivers and with some other analog wireless receivers (contact the factory for
details). The transmitter compatibility mode must be set to match receiver for the system to operate properly. Set-
ting the transmitter’s operating mode is easily accomplished using only a small screwdriver. One is supplied with the
transmitter.
Note
The unit is supplied from the factory as a 400 series transmitter
1)
Ensure the battery is good and installed properly by setting the LM’s Power ON/
OFF switch to ON and verifying the Power LED glows green, then set the Power
ON/OFF switch to OFF.
2)
Verify the current compatibility mode by setting the Power ON/OFF switch to ON
and observing the front panel Modulation LEDs. The –20 and –10 LEDs will blink
simultaneously:
• Once for 100 Series mode
• Two times for 200 Series mode
• Three times for mode 3
• Four times for Digital Hybrid Wireless
™
or 400 Series mode
• Five times for IFB mode
3)
To change the compatibility mode, set the Power ON/OFF
switch to OFF and, using a small screwdriver, set both
Frequency Select Switches to “C.” (for
C
hange,
C
hange).
4)
Briefly power up the unit – just long enough for the front
panel LEDs to light up, and then turn the unit off.
5)
Change the Frequency Select Switch settings to one of
the following positions:
• Lectrosonics 100 Series mode:
1,1
• Lectrosonics 200 Series mode:
2,2
• mode 3 (contact the factory for details):
3,3
• Digital Hybrid Wireless
™
(400 Series) mode:
4,4
• IFB mode:
5,5
6)
Turn on the transmitter, wait until the front panel LEDs
glow, then turn it off again.
7)
Change the Frequency Select Switch settings to 0,0.
8)
Turn on the transmitter top verify the compatibility mode for the unit has changed.
Note
Each time the transmitter is turned on, it will confirm the current operating mode with the number of blinks listed in
Step 2. The mode setting will remain the same until you reset it with the procedure listed above.
ATTACHING A MICROPHONE AND ADJUSTING AUDIO LEVELS
The front panel Modulation LEDs indicate limiter activity. (See chart.) At -20 dB, the -20 LED glows green. At -10
dB, both the -20 and the -10 LEDs glow green. At 0 dB, the -20
LED glows red and the -10 LED glows green, and at +10 dB, both
LEDs glow red. Since the distortion introduced by the limiter is
minimal and full modulation is assured, occasional forays into the
red by the -10 LED is acceptable.
1)
If necessary, install a fresh battery.
2)
Insert the microphone plug into the MIC input jack. Ensure
the pins are aligned and the connector locks in (it will click).
3)
Mute the main sound system and rotate the AUDIO LEVEL
control on the LM transmitter to maximum counterclockwise
(Off).
OPERATING INSTRUCTIONS
Signal Level
Less than -20 dB
-20 dB to -10 dB
-10 dB to +0 dB
+0 dB to +10 dB
Greater than +10 dB
-20 LED -10 LED
Off
Green
Green
Red
Red
Off
Off
Green
Green
Red
