User guide

VoiceLift System with PVS 405D • Features and Operation 13

h Volume buttons (inside the battery compartment) — These buttons, marked with

and

, raise and lower the microphone volume (see Handheld microphone volume

adjustment on page 18). To access these buttons, remove the battery cover (see

Installing or Replacing the Microphone Battery).

NOTE: You can disable the tone by setting the Tone DIP switch on the receiver to

Off (see

DIP switches on page 20).

Pressing and holding both of these buttons simultaneously for 3 seconds sends an

IR signal to the receiver to close its relay (Rly) port. This is typically used to trigger an

alert (see

Relay (Rly) port on page 21 and the Special Application: Instant

Alert section beginning on page 29 for more information on this function).

i Channel selection switch — When setting up the microphone, use

a small screwdriver to turn this rotary switch so that its arrow points

to channel A (2.3 MHz) or B (2.8 MHz). You must remove the battery

cover to access this switch.

NOTE: When two microphones are used, they must be on different frequencies;

in other words, one must be set to channel A and the other to B.

Installing or Replacing the Microphone Battery

A rechargeable AA NiMh battery is provided for each microphone in your system. You can

also use an AA alkaline battery. Additional replacement batteries can be purchased locally.

To install or replace the battery:

1. Remove the battery cover.

• Pendant microphone: Slide the cover downward until its two tabs are free of

their slots and lift the cover off.

• Handheld microphone:

a. Slide the battery cover downward until it stops.

b. Lift the cover up and off the microphone.

VOLUME

VLH 102

VLP 202

Positive

Terminal

Figure 10. Removing the Microphone Battery Covers