Marantz PMD351 manual Care and Maintenance, Cleaning Exterior Surfaces, Compact Discs

CARE AND MAINTENANCE

Head Cleaning

If the heads are not cleaned for a long period, dirt or dust may be deposited on the heads and capstans, causing degraded high-frequency characteristics, volume drop, or degraded recording and erasure performances. To prevent this, clean the heads, capstans, etc., periodically as follows.

1.Turn the power off.

2.Open the cassette holder by pressing the EJECT button.

3.As shown, clean the parts which come in contact

with tape, including the heads, capstans, tape guides, pinch wheels, etc., with a cotton swab soaked in head cleaning solution.

capstans

heads

tape guides

pinch wheels

Head Demagnetization

When a magnetized metallic object (such as a screwdriver tip) comes in contact with a head or capstan, or when the deck has been used for a long period of time, the head may be magnetized and noise may be generated. If the head is extremely magnetized, the high frequencies in recorded tapes could even be erased. To prevent this, demagnetize the heads and capstans periodically (every 20 hours of use) using a commercially available head demag- netizer. (For this operation, please refer to the instruc- tion manual supplied with your head demagnetizer.) Caution: Be sure to turn the power of the cassette deck off before using a head demagnetizer.

CLEANING EXTERIOR SURFACES

The exterior finish of your unit will last indefinitely with proper care and cleaning. Never use scouring pads, steel wool, scouring powders or harsh chemical agents (e.g., lye solution), alcohol, thinners, benzene, insecticide or other volatile substances, as these will mar the finish of the equipment. Likewise, never use cloths containing chemical substances. If the equip- ment gets dirty, wipe the external surfaces with a soft, lint-free cloth.

If the equipment becomes heavily soiled:

•dilute some liquid soap in water, in a ratio of one part detergent to six parts water

•dip a soft, lint free cloth in the solution and wring

the cloth out until it is damp

•wipe the equipment with the damp cloth

•dry the equipment by wiping it with a dry cloth.

COMPACT DISCS

The glossy side (shining like a rainbow) is the front side of the disc; and; the side on which the label is printed is the back. Unlike conventional turntables for playing analog discs, compact disc players read the information recorded on the disc from underneath without contacting it, using a beam of laser light. Therefore, the performance of a compact disc will not degrade like conventional analog records.

Handle discs carefully so as not to damage or scratch the front side.

To protect the disc, avoid placing it in the following locations:

•In direct sunlight or near a source of heat like a heater.

•In a place which is damp or dirty.

•In a place which could be exposed to rain, such as near a window.

Always keep the disc surface clean.

Up to six billion data units are recorded on the front side of the disc. When cleaning the disc surface, always be sure to use a special compact disc cleaner and wipe as shown below.

Wipe in a radial	Do not wipe in circumfer-
direction.	ential direction.

Do not use conventional record cleaner for analog records, as this will adversely affect the disc surface. Store discs properly by placing them in their disc cases.

ENGLISH

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