Marantz SR490 - Care and Maintenance; Cleaning of Equipment External Surfaces; General Malfunction

Operation
of
Remote
Control
(for
SR590.)
1. Remote control
The
distance
between
the
transmitter
of
the
remote
control
unit
and
the
IR
SENSOR
of
the
AV
Surround
Stereo
Receiver
should
be
less
than
about
5
metres.
If
the
transmitter
is
pointed
to
a
direction
other
than
the
IR
SENSOR
or
if
there
is
an
obstacle
between
them,
remote
control
may
not
be
possible.
HSITSN3
Remote-controllable range
Receiver
Approx. 5m
Remote control unit
2.. Loading batteries
The
life
of
the
batteries
used
with
the
remote
control
unit
is
about
one
year
with normal use.
® Remove the back cover.
@Insert batteries (AAA type ) with correct
(+) and (-) polarity.
13
CARE AND MAINTENANCE
This section describes the care and maintenance tasks that must be
performed to optimize the operation of your Marantz equipment.
CLEANING OF EQUIPMENT EXTERNAL
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, benzine, 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.
lf the equipment becomes heavily soiled:
- dilute some washing up liquid 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.
REPAIRS
Only the most competent and qualified service technicians should be
allowed to service your unit. Marantz and its factory trained warranty
station personnel have the knowledge and special equipment needed for
the repair and calibration of this precision instrument.
In the event of difficulty, call the proper toll-free telephone number listed
on the face of the warranty to obtain the name and address of the Marantz
Authorized Service Center nearest you. In many cases, the dealer where
you purchased your Marantz unit may be equipped to provide service.
Please include the model, serial number of your unit together with a copy
of your purchase receipt and a full description of what you feel is abnormal!
in its behaviour.
THE PROTECTION CIRCUIT
If the protection circuit does work, the unit will enter to standby mode and
do not only working for 3 seconds.
GENERAL MALFUNCTION
If the equipment malfunctions, this may be because an electrostatic
discharge or AC line interference has corrupted the information in the
equipment memory circuits. Therefore:
— power switch turns OFF
— after waiting at least three minutes, power switch turns ON
— re-attempt to operate the equipment
Memory backup
e In case a power outage occurs or the power cord is accidentally
unplugged, the unit is equipped with a backup function to
prevent memory data such as the preset memory from being
erased.
The memory functions are backed up for up to about 2 week.