Troubleshooting; Error Checklist - Sennheiser 300 IEM - 12-03 Instructions For Use Manual

Troubleshooting

Error checklist

Problem
No operation indication
No RF signal
RF signal available, no audio
signal, "MUTE" display
appears on the display panel
Audio signal has a high level
of background noise
Audio signal is distorted
No access to a certain channel
If problems occur that are not listed in the above table or if the problems cannot be solved with the proposed
solutions, please contact your local Sennheiser agent for assistance.
68
Possible cause
Batteries are flat or
accupack is flat (receiver only)
No mains connection (transmitter
only)
Transmitter and receiver are not on
the same channel
Transmitter is out of range
Transmitter is set to mono operation
and the pilot tone evaluation of the
receiver is activated
Receiver's squelch threshold is
adjusted too high
Transmitter sensitivity is adjusted
too low
Transmitter sensitivity is adjusted
too high
During scanning, an RF signal has
been detected on this channel and
the channel has been locked
Possible solution
Replace the batteries or
recharge the accupack
Check the connections of the mains
unit
Set transmitter and receiver to the
same channel
Check the squelch threshold setting
(see "Adjusting the squelch threshold
(receiver only)" on page 63) or
reduce the distance between
transmitter and receiving antenna
Deactivate the pilot tone evaluation
on the receiver
See "Adjusting the squelch threshold
(receiver only)" on page 63)
See "Adjusting the sensitivity
(transmitter only)" on page 64
See "Adjusting the sensitivity
(transmitter only)" on page 64
See "Scanning the channel banks for
free channels (receiver only)" on
page 62