VAR8 and Variants Operation, Commissioning, Fault Finding, and Maintenance Guide -
Is
Page 153 of 166
sue: 02 complete, approved
Fault Description
Fault Code(s)
Reported and Logged
Suggested Action
DC Line Fault
Short
FXX/Y AMP LINE SHORT
XX=Frame Address
Y=Frame 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=Frame Address
Y=Frame Number
Check cabling from the router to the input of the
amplifier surveillance interface.
Check if AC surveillance is correctly set.
‘Learn’ function not
performed following a
power cycle or a fault
clearance
LEARN NOT DONE Perform ‘Learn’ function to detect connected amplifier
frames.
External CAN bus fault
INT-01 CAN COMMS Check CAN wiring between router and motherboard
within the VAR8. Check whether motherboard CPU and
comms LEDs are operating.
Probably requires replacement of Electronics Module.
Standby amplifier failure INT-01 FRAME SBY FAIL Will require the replacement of the amplifier module.
28.6.3 Numeric Fault Codes and Their Meaning
A number of faults are assigned engineering numerical codes. In general these faults cannot be fixed on site
and the unit will require the Router returning to the factory.
Code Applicable Units Description
FAULT-01 INT-01
FXX/*
Internal Fuse.
FAULT-02 INT-01 DSP Failures.
FAULT-04 INT-01 DSP / M16C CPU command interface compatibility
errors.
FAULT-05 INT-01 M16C CPU Failures.
FAULT-06 INT-01 Hardware override path failures.
FAULT-09 INT-01
FXX/*
MIC-XX
CPU and DSP memory failures.
FAULT-11 INT-01 DSP reset.
FAULT-12 INT-01 DSP codec fault.
FAULT-13 INT-01 DSP interrupt fault.
FAULT-14 INT-01 DSP output DMA fault.
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