Mark Levinson 433 User Manual

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Nº433 Power Amplifier
Care & Maintenance
The Nº433 requires routine care and maintenance to ensure optimal 
performance. The bulleted items in this section indicate maintenance 
procedures that should be performed on a regular basis.
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 cabinets of your Nº433, use a feather 
duster or a lint-free soft cloth. To remove dirt and fingerprints:
1. Dampen a soft cloth with isopropyl alcohol, then lightly clean 
the surface of the unit(s) with the cloth, moving with the 
“grain” of the anodized, brushed aluminum. 
Do not use excessive amounts of alcohol that might drip off the 
cloth and into the unit.
2. Following the cleaning with alcohol, dampen a clean cloth with 
water and wipe over the surface you just cleaned with alcohol. 
This removes the alcohol residue.
Caution!
Do not apply liquid directly to the Nº433 exterior surface. Doing 
so may damage electrical components inside the unit.
Refer to “Installation Considerations” on page 7 for infor-
mation about preventative maintenance.