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Operating Instructions - TellPhone 4200
12
Troubleshooting
Problem
TellPhone 4200
does not switch on.
The person you are
calling cannot hear
you.
The person you are
calling complains
about interference
noise.
The person you are
calling complains
about echoes
Cause
There is no supply
voltage.
The ignition is not
turned on.
The ignition line is
interrupted.
The microphone is
not inserted or the
microphone cable is
damaged.
The microphone is in
an air stream.
The phone is very
close to the TellPhone
4200 parts or the car
radio.
The microphone and
the speaker are not
far enough apart.
The volume is too
loud or the
microphone
sensitivity is too high.
- 35 -
Remedy
If necessary, replace
the fuse and check the
cable and connections.
Turn on the ignition.
Check cable and 1A
fuse.
Connect the
microphone plug to the
electronics box. If the
cable is defective, it
must be replaced.
Mount the microphone
somewhere else or
perhaps reduce
ventilation.
Increase the distance
between your phone
and the TellPhone
4200 or radio.
Increase the distance
between them or
reduce the volume.
Reduce the volume or
perhaps reduce the
microphone sensitivity
at the electronics box.
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