6
3. Replace the battery compartment door and secure it with the
screw.
When the headset’s sound weakens or distorts, adjust
EARPIECE
VOLUME
. If the sound does not improve, press
MUTE
. If the MUTE
indicator does not light (or lights dimly), replace the batteries.
Cautions:
• Always remove old or weak batteries. Batteries can leak chem-
icals that can destroy electronic parts.
• Dispose of old batteries promptly and properly. Do not burn or
bury them.
USING AC POWER
You can power the control unit using a 6-volt, 150-mA AC adapter
and a size B Adaptaplug
®
(neither supplied). Both are available at
your local RadioShack store.
Cautions:
You must use a Class 2 power source that supplies a
regulated 6 volts DC and delivers at least 150 mA. Its
center tip must be set to positive and its plug must fit
the control unit's
DC 6V
jack. Using an adapter that does not
meet these specifications could damage the control unit or the
adapter.
• Always connect the AC adapter to the control unit before you
connect it to AC power. When you finish, disconnect the adapt-
er from AC power before you disconnect it from the control
unit.
Follow these steps to connect AC power.
1. Attach the Adaptaplug to the AC adapter with its tip set to posi-
tive.
!
43-2002.fm Page 6 Tuesday, June 29, 1999 7:16 AM