HumanTechnik Sarabec Crescendo 60 Mode D'emploi page 28

• Low or distorted sound:
Batteries nearly exhausted - fit new ones.
Check operating mode.
• Feedback or squealing sound:
Microphone is too close to headset
and volume is set too loud.
• Crackling or sound goes on and off:
Dirty plugs - clean plugs
Faulty leads, wiggle leads to find faulty lead -
change lead!
• Tinny or muffled sound:
Tone control in wrong position.
Maintenance and care
Headset ends can be removed for cleaning and
can be washed in warm soapy water but must
be thoroughly dried before replacing!
If the unit does become dirty, simply wipe it clean
with a soft, damp cloth. Never use spirits, thin-
ners or other organic solvents. Do not set up the
unit where it will be exposed to full sunlight for
long periods. In addition, it must be protected
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