AUSTRALIAN MONITOR AM1600, Руководство по эксплуатации

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7. Maintenance
Your
A M 1 6 0 0
amplifier will need minimal
maintenance. No internal adjustments need to be
made to the unit to maintain optimum performance.
To provide years of unhindered operation we suggest
a maintenance inspection be carried out on a regular
basis, say every 12 months or so.
Fans
Due to the openness of the air path through your
AM1600
amplifier, very little dust should settle
within the amplifier. The unit has been designed so
that any dust and/or foreign particles that do settle
within the amplifier will not unduly hinder the cooling
of the unit.
The mesh grille in front of the fans will act to limit the
amount of dust and lint entering the unit. You will
find in time that there will be a build up of dust and
lint on the grille which may start to hinder the airflow
through the unit. You should periodically remove the
dust and keep the grille clean.
Over time, dust may build up on the leading edge of
the fan blades and reduce their cooling efficiency.
The time taken for this to happen will depend on the
environment and the amount of use.
The fan blades are accessible once the lids are
removed and can be easily cleaned. You need only
hold the fan rotor still and wipe the dust off the
blades. Many users stall the fan and use
Maintenance 17
compressed air to blow the dust off the fan blades.
It is important to note that the fan blades must be
held still whilst blowing air over the blades otherwise
you may burn out the bearings in the fan.
NOTE:
Make sure the unit is off and is unplugged from the
mains. Give the main filter capacitors time to
discharge before removing lids.
Fuses
There are four (4) rail fuses provided on the back panel
of the unit. These rail fuses are in series with the
positive and negative output supply to each amplifier
channel and provide overall protection for the output
stage. If the amplifier is subjected to heavy use such
as short circuits, 2 ohm or bridged 4 ohm loads, these
fuses will eventually fatigue and may require replacing
to ensure they do not fail at an inconvenient time.
You should replace the fuse if the element is sagging
or discoloured. Only ever replace with the same type
fuse and current rating.
When checking for a failed fuse, do not rely on visual
inspection alone. You should use an ohmmeter to
check continuity.
NOTE:
Make sure the unit is off and is unplugged from the
mains and give the main filter capacitors time to
discharge before replacing fuses.
Only competent or qualified persons should
attempt any service or maintenance of your amplifier!