Mark Levinson 53 owner manual Care & Maintenance

Nº53 Power Amplifier

Care & Maintenance

Note

Caution!

The Nº53 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 Nº53 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.

•To remove dust from the Nº53 exterior surface, use a feather duster or a low-pressure blower.

•To remove dirt and fingerprints from the Nº53 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 Nº53 exterior surface in the same direction as the

grain of the brushed aluminum. 29

DO NOT apply liquid directly to the No53 exterior surface. Doing so may damage electrical components.