Marantz PMD351 - Manual (Page 22)

ENGLISH
- 22 -
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.
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.
capstans
pinch wheels
tape guides
heads
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
direction. Do not wipe in circumfer-
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.