Troubleshooting - Arcam FMJ Gclass P429 Handbook

troubleshooting

If you are having trouble with your amplifier, check
the following items.
No sound
Check the following:
The P429 power amplifier is correctly plugged in
<
and switched on
Your audio/video source (e.g. preamplifier) is
<
correctly connected, the correct input is selected
and it is not muted
The P429 is not in protection mode, as described
<
in the next section.
Sound cuts-out unexpectedly
The P429 may enter a protection mode, depending
on the fault being detected. The front panel LED will
indicate the fault type, according to the following list:
ALTERNATE RED/GREEN: The internal
<
temperature of the unit reached an unsafe level.
Allow the P429 to cool off.
FLASHING RED: The P429 amplifier detected a
<
speaker short circuit. Should this happen, please
inspect all the speaker cables to make sure none
of them are shorted together. This fault is very
common when bare wires are being used to make
speaker connections.
FLASHING ORANGE: The amplifier detected a
<
DC offset.
Following any of the faults described above, the
amplifier will turn itself off and power to the speakers
will be removed. To continue using the P429, the fault
must be removed and the unit must be turned OFF
then back ON.
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