Operating instructions, Selecting compatibility mode, Adjusting the audio gain – Lectrosonics UT400 User Manual
Page 12

UT
LECTROSONICS, INC.
12
Selecting Compatibility Mode
This transmitter is capable of working with Lectrosonics
400 Series Digital Hybrid Wireless™, 200 Series, 100
Series, and some analog wireless receivers from other
manufacturers. (Contact Lectrosonics for details.) The
transmitter must be set for compatibility with the match
ing receiver, which is easily done using the supplied
screwdriver and a battery.
Note: The unit is supplied from the factory
configured as a 400 Series transmitter.
1) Set the audio output controls for the corresponding
receiver to minimum.
2) Install a good bat
tery in the trans
mitter. Turn on the
transmitter and
observe the Power
LED to determine
the current Com
patibility Mode.
The Power LED
will blink:
• Once for 100 Series mode
• Two times for 200 Series mode
• Three times for mode 3
• Four times for 400 Series mode
• Five times for IFB Series mode
3) Turn the transmitter OFF’. With a small screwdriver
(included with your unit), set the Frequency Switch
es to “CC” (for
Change, Change).
IMPORTANT: When performing the following
steps, The transmitter allows ten seconds to
set the frequency switches before the next
toggle of the power switch. When toggling the
power switch, it is not neccesary to allow the
transmitter to turn off completely. If more than
ten seconds elapse between toggles, the mode
change will not take effect and you must begin
again from step 3.
Operating Instructions
4) Rapidly toggle the power switch On and then OFF.
Change the Frequency Switches to one of the fol
lowing settings:.
• 100 Series mode:
1,1
• 200 Series mode:
2,2
• Mode 3:
3,3
• 400 Series mode:
4,4
• IFB Series mode:
5,5
5) Rapidly toggle the power switch On and then OFF.
Set the Frequency Switches to 0,0.
6) Turn the transmitter on normally.
Observe the Power LED on the bottom panel to ver
ify the compatibility mode for the unit has changed.
The Power LED will blink the new
compatibility mode. (See Step 2.)
Note: Each time the transmitter is turned on, the
Power LED will confirm the current operating mode
with the number of blinks listed in Step 2. The
mode setting will not change until it is reset with
the procedure listed above.
Adjusting the Audio Gain
1) Install a good battery in the transmitter. Move the
Power Switch to On and observe the Power LED. It
should blink the compatibility mode, then glow green.
2) Set the Attenuator Control to position “F.”
(see page 8).
3) Hold the microphone the way it will be used in ac
tual operation.
4) While speaking or singing at the same voice level
that will actually be used during the program, ob
serve the Modulation LEDs. Adjust the Audio Level
control until the –20 dB LED occasionally flickers
red and the -10 dB glows green.
Signal Level
-20 LED
-10 LED
Less than -20 dB
Off
Off
-20 dB to -10 dB
Green
Off
-10 dB to +0 dB
Green
Green
+0 dB to +10 dB
Red
Green
Greater than +10 db
Red
Red
Note: If the Audio Level control is set to minimum
and both Modulation LEDs still blink red frequently,
you can reduce the gain further by adjusting
the Attenuator Control. This control is located
under the windscreen. Unscrew the windscreen
and carefully lift it off the top of the unit. See
the VARIMIC
TM
CONTROLS section for these
adjustments. Be sure to set the Attenuator back
to the “F” position before adjusting the gain for
another user.
Power LED
Power Switch
Modulation LEDs
-20 -10
Audio Level
Frequency Switches
Coarse Fine