UM450
Battery Installation
The transmitter is powered by a standard alkaline or
lithium 9 Volt battery. It is important that you use ONLY
an ALKALINE or LITHIUM battery for longest life. Stan-
dard zinc-carbon batteries marked "heavy-duty" or
"long-lasting" and Ni-Cad batteries are not adequate.
Alkaline batteries provide approximately 1.5 hours of
operation. Lithium batteries can be used to provide up to
4.5 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.
To open the battery compartment, press outward on the
cover door in the direction of the arrow as shown in the
drawing. Only firm, sliding pressure is needed to open
and close the battery door. Swing the door open and
take note of the polarity marked inside showing the
location of the positive (+) and negative (-) terminals.
You can see the large and small contact holes inside the
battery compartment with the door open.
Insert the battery correctly and close the cover by
pressing the door closed and across, reversing the
opening procedure illustrated above. If the battery is
inserted incorrectly, the door will not close. Do not force
the door closed.
10
Operating Instructions
Selecting the Compatibility Mode
All units with serial number 601 and up are capable of
working with Lectrosonics 400 Series Digital Hybrid
Wireless
™
, 200 Series analog, 100 Sseries analog and
some non-Lectrosonics analog wireless receivers
(contact the factory for details). The transmitter must be
set to the operating mode of the matching receiver,
which is easily done using only the supplied screwdriver
and a battery.
NOTE: The unit is supplied from the factory as a
400 series transmitter.
1) Ensure the battery is good.
2) Turn off the transmitter.
3) With a small screwdriver (one is included with your
unit), set the Frequency Select Switches to CC. (for
Change, Change).
4) Power up the unit briefly – just long enough for the
LED's to light up and then turn it off.
5) Change the Frequency Select Switches to one of
the following settings:
• To set Lectrosonics 100 Series mode:
set switches to 1,1
• To set Lectrosonics 200 Series mode:
set switches to 2,2
• To set mode 3: set switches to 3,3
(contact the factory for details)
• To set Lectro 400 Series mode:
set switches to 4,4
• To set IFB mode: set switches to 5,5*
• To set Mode 6: set switches to 6,6
6) Turn the unit on, wait a couple of seconds and turn
off again.
7) Change the Frequency Select Switches to 0,0.
8) Turn on the transmitter to complete the operation.
The LEDS will blink to indicate the selected com-
patibility mode. Immediately after power up, all
LEDS will blink together red, then green, followed
by the audio level LEDs (-20 and -10) blinking to
indicate the mode.
The –20 and –10 LEDs will blink:
• Once for 100 Series mode
• Two times for 200 Series mode
• Three times for some other receivers
• Four times for 400 Series mode
• Five times for IFB mode*
• Six times for Mode 6
At powerup the transmitter will confirm the current
compatibility mode with the number of blinks listed
here. This setting will remain the same until you
reset it with the procedure listed above.
*Not available on earlier units.
LECTROSONICS, INC.
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