Battery Installation; Operating Instructions; Selecting The Compatibility Mode - Lectrosonics UM500 Operating Instructions Manual

Frequency-agile uhf belt-pack transmitter

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Table Of Contents

Table of Contents

UM500

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. 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 6 hours of operation. Lithium

batteries can be used to provide up to 13 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

SELECTING THE COMPATIBILITY MODE

All units are capable of working with Lectrosonics 110 series analog , 300 series analog, 500 series digital hybrid or

some other 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.

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 110 Series mode:

• To set Lectrosonics 300 Series mode:

• To set mode 3:

• To set Lectro 500 Series mode:

• To set IFB mode:

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 compatibility 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.

*Not available on earlier units.