Clear-Com RS-603 (No longer available) - Manual (Page 52)

R S - 6 0 3 / 6 2 3 / R B E L T P A C K S 5 0
PROBLEM Mic level too low or too high.
CAUSE Mic distance from mouth too far or too
close; mic gain set incorrectly; sidetone set
incorrectly; no terminations or more than
one termination.
SOLUTION Reposition mic and/or change headset mic
gain.
PROBLEM Headset level too low or too high.
CAUSE Unterminated channel; improper
impedance; shorted line.
SOLUTION Adjust sidetone and volume controls; check
wiring; use compatible headset.
PROBLEM Can’t change configuration on beltpack.
CAUSE Disabled access to functions.
SOLUTION Restore access by resetting to factory default
settings or with V-Pack.