Lectrosonics UT700 - Manual (Page 17)

Battery
Battery Compartment
two printed circuit boards.
sized holes in the battery
Encrypted Digital Wireless System
Modulation LEDs
The Modulation LEDs (located under the Battery
Compartment Door) provide a visual indication of the
input audio signal level from the microphone. These
two bicolor LEDs can glow either red or green to
indicate modulation levels.
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
Audio Level Control
The Audio Level control is used to set the audio input
level (or gain) for the proper modulation. Located under
the battery door, this control is rotated while speaking
or singing into the microphone to set the modulation
level.
Audio Level LEDs
Audio Level control
Locked Mode
The UT700 can be placed in a locked mode where
neither the Power On/Off Switch nor the Frequency
Select Switches have any further effect on operation.
This protects the unit from accidental power off or
misadjustment after it has been prepared for use.
To enter locked mode, start with the transmitter turned
on and toggle the Power On/Off Switch off and on
rapidly three times. (Each toggle must be shorter than
two seconds and there must never be more than 10
seconds between toggles.)
After the third toggle, the power LED will go out briefly,
then blink the current security level in red indicating
locked mode.
Locked mode can be cleared by removing the battery.
Note: Removing the transmitter battery may cause
noise in the associated receiver. It is suggested to
turn the receiver audio volume off prior to
removing the transmitter battery.
UT700 Battery Installation
Caution: The transmitter is designed for a
standard alkaline or lithium 9 volt battery. It is
important that you use an alkaline or lithium
battery for longest life. Standard zinc-carbon
batteries marked “heavy-duty” or “long-lasting”
are not adequate. Ni-cad rechargeable
batteries will only provide 1.5 hours of
operation, or less, and will run down quite
abruptly.
Alkaline batteries provide over 3.5 hours of operation
under normal conditions. Lithium batteries can provide
up to 6.5 hours. Care should be taken not to leave a
fully discharged lithium battery in the transmitter, as
swelling of the battery can make it difficult to remove
from the compartment. The battery status circuitry is
designed for the voltage drop over the life of alkaline
batteries.
The battery
compartment is
located in the
lower section of the
transmitter,
between the
Note the two differently
contact pad inside the
Battery Compartment.
Insert the battery so that the large hole in the battery
contact pad will line up with the large contact on the
battery. A spring-loaded plunger in the bottom of the
compartment (opposite the contact pad) secures the
battery in place.
Compartment Cover
The battery status is indicated by the Power LED
located on the UT700 bottom panel. The LED glows
green under normal circumstances when there is
sufficient power left in the battery. The LED changes to
red as the battery voltage drops and starts blilnking
when only about 30 minutes of operation left with the
recommended alkaline battery. Battery status is also
displayed on the Information and Status Display on the
front panel of the UDR700 receiver.
Note: It is possible to insert the battery backwards
and still be able to close the battery door. No
physical damage will occur but the transmitter will
not operate in this condition.
Rio Rancho, NM 17