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Nº500H Series Power Amplifier
Restoring Factory Defaults
Pressing the Factory Default button on the internal Web page of
the amplifier resets all settings to their factory default values. If
the internal Web page is not available, there is also a key press
sequence available. Follow the instructions below to reset the
factory default settings from the front panel.
1. Power off the amplifier.
2. Press and hold the Standby button.
3. Press the Power button to turn on the power.
4. Keep holding down the Standby button until the front panel
LED blinks four times.
5. Release the Standby button.
Now reset to its factory default state, the amplifier will reinitialize.
Care & Maintenance
The Nº500H series amplifier requires routine care and maintenance
to ensure optimal performance. The bulleted items indicate
maintenance procedures that should be performed on a regular
basis.
Turn off the Nº500H series amplifier and unplug the rear
AC power cord before performing maintenance to the
amplifer.
Failure to perform the maintenance procedures included in this section
may void the manufacturer’s warranty and/or standard repair policies.
• Toremovedustfromtheamplier’sexteriorsurface,usea
feather duster or a low-pressure blower.
• Toremovedirtandngerprintsfromtheamplier’sexterior
surface, use a soft, lint-free cloth. DO NOT use metal polish or
a cloth made with steel wool.
• Ifneeded,thisclothcanbedampenedwithisopropylalcohol.
DO NOT dampen the cloth with Benzene, acetone-based
cleaners, or other commercial cleaners.
• Wipetheamplier’sexteriorsurfaceinthesamedirectionas
the grain of the brushed aluminum.
DO NOT apply liquid directly to the amplifier’s exterior surface.
Doing so may damage electrical components.
Note
Caution!