Troubleshooting; Introduction; System Troubleshooting - 3M C860 Operating Instructions Manual

Troubleshooting

Introduction

System
Troubleshooting
Problem
No communications. One or more
headsets hear static.
A single belt pack is dead. No
communication to or from customer.
No communications to or from other
belt packs (PAGE or TALK
functions). No static is heard.
Belt packs do not go into standby
(silence) when the vehicle leaves the
menu sign.
The monitor speaker does not
operate.
22
To use the following troubleshooting guide, locate the problem in the left
column and look for the problem's possible causes and corrections in the middle
and right columns. Possible causes are listed in the order in which they are most
likely to happen. Check for possible causes in the given sequence to help isolate
the problem.
Possible Cause
The base station is not ON.
Base station and belt packs not
programmed to same channel.
The base station is defective.
The belt pack is not turned on.
The battery is discharged.
The headset is unplugged or
defective.
This is normal when an "air switch"
type of vehicle detector is in use.
There is a large metal object over
the loop in the driveway (if a loop is
used).
Defective vehicle detector.
The base station internal monitor
volume control is turned too low.
Model C860
Correction
Turn the base station ON. Make
sure that the power transformer is
plugged into the wall outlet and into
the base station power receptacle. If
the red power light does not come
on, check for power at the wall
outlet. If power is OK, call for
authorized service.
Reprogram base station and/or belt
packs.
Call for authorized service.
Turn the belt pack on.
Replace the battery with a fully
charged one.
Call for authorized service.
Momentarily press the PAGE switch
to return to standby.
Remove the metal object.
Call for authorized service.
Increase the monitor speaker
volume setting. (Store manager
only.)
 3M 2003
January