ASL INTERCOM VAR4 - Page 289

VAR4 / VAR12 / VAR20 - Operation Manual
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Fault Description
Fault Code(s)
Reported and Logged
Suggested Action
sue: 03 complete, approved
Amp failure FXX/Y AMP FAIL
XX=Mainframe Address
Y=Slot Number
Indicates faulty Amplifier module.
Earth leakage fault FXX/Y L/S LINE EARTH
XX=Mainframe Address
Y=Slot Number
Indicates an earth leakage path of <500kΩ exists
between either conductor of the speaker circuit and
ground.
Speaker wiring and loudspeakers need to be
checked.
DC line fault
(open)
FXX/Y L/S LINE OPEN
XX=Mainframe Address
Y=Slot Number
One or more spurs has been lost from the
commissioned setting.
Speaker wiring and loudspeakers need to be checked
Use the tests/status menu it is possible to view the
number of spurs remaining to aid pin pointing the
fault.
DC line fault
(short)
FXX/Y L/S LINE SHORT
XX=Mainframe Address
Y=Slot Number
The dc line resistance has fallen below the
commissioned value indicating a full or partial short
circuit.
Speaker wiring and loudspeakers need to be
checked.
Loss of audio at input FXX/Y AMP AUDIO INPUT
XX=Mainframe Address
Y=Slot Number
Check cabling from the VAR Router to the input of the
amplifier surveillance interface.