Mark Levinson 500H owner manual Restoring Factory Defaults, Care & Maintenance

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	23
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.

Note Failure to perform the maintenance procedures included in this section may void the manufacturer’s warranty and/or standard repair policies.

•To remove dust from the amplifier’s exterior surface, use a feather duster or a low-pressure blower.

•To remove dirt and fingerprints from the amplifier’s exterior surface, use a soft, lint-free cloth. DO NOT use metal polish or a cloth made with steel wool.

•If needed, this cloth can be dampened with isopropyl alcohol.

DO NOT dampen the cloth with Benzene, acetone-based cleaners, or other commercial cleaners.

•Wipe the amplifier’s exterior surface in the same direction as the grain of the brushed aluminum.

Caution! DO NOT apply liquid directly to the amplifier’s exterior surface. Doing so may damage electrical components.