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22 Error checklist
Problem Possible cause
No operation indication
ț Battery is flat
No RF signal
ț Transmission frequency is not the same
as the receivng frequency
ț Transmitter is out of range
RF signal available but
ț Transmitter is muted (“MUTE”)
no audio signal
ț Receiver’s squelch threshold adjusted
too high
ț Transmitter does not supply phantom
powering to condenser microphone
(u “18 Switching the phantom
powering on/off (PHAnto)”, page 51)
Audio signal noisy
ț Transmitter sensitivity adjusted too
low
ț Receiver’s AF output level adjusted too
low
Audio signal distorted
ț Transmitter sensitivity adjusted too
high
ț Receiver’s AF output level adjusted too
high
̈ If problems occur that are not listed in the above table, please
contact your local Sennheiser agent for assistance.