Yamaha PSR-4000 - Manual (Page 6)

2
Taking Care of Your PortaTone
Your PortaTone will give you years of playing pleasure if you follow
the simple rules given below:
■ Location
Do not expose the instrument to the following conditions
to avoid deformation, discoloration, or more serious dam-
age.
● Direct sunlight (e.g. near a window).
● High temperatures (e.g. near a heat source, outside, or
in a car during the daytime).
● Excessive humidity.
● Excessive dust.
● Strong vibration.
■ Power Supply
● In some areas the PSR-4000 will
have a voltage selector on the bot-
tom panel. Make sure that the volt-
age selector is set for the AC mains
voltage in your area. The voltage
selector can be set (rotated) by us-
ing a screwdriver. If in doubt, con-
tact your Yamaha dealer.
● Turn the power switch OFF when the instrument is not
in use. (The PSR-4000 uses a very small amount of
power to maintain the internal memory contents even
when no batteries are installed and the power is turned
off.)
● The power supply cord should be unplugged from the
AC outlet if the instrument is not to be used for an
extended period of time.
● Unplug the instrument during electric storms.
● Avoid plugging the instrument into the same AC outlet
as appliances with high power consumption, such as
electric heaters or ovens. Also avoid using multi-plug
adapters since these can result in reduced sound
quality, operation errors, and possibly damage.
■ Memory Backup Batteries
The PSR-4000 requires four 1.5 V C size (LR14) batteries
for memory backup power. If no backup batteries are
installed, the memory contents will be lost when then
instrument is unplugged from the AC mains supply. Please
use alkaline batteries. The average life of a set of alkaline
batteries is about 12 months.
1. Open Battery Compartment Cover
Open the battery compartment cover — located on the
instrument’s bottom panel — by pressing on the two
latches on the cover and pulling outward, as shown in
the illustration.
2. Insert Batteries
Insert the four batteries, being careful to follow the
polarity markings on the bottom panel.
3. Replace Cover
Replace the compartment cover, making sure that it
locks firmly in place.
NOTES
• Never mix old and new, or different type of batteries!
• To prevent damage due to battery leakage, it is a good idea
to remove the batteries from the PSR-4000 (after saving any
important data to disk) if it is not to be used an extended
period of time. (YAMAHA is not responsible irretrievable
internal data.)
■ Turn Power OFF When Making Connections
● To avoid damage to the instrument and other devices
to which it is connected (a sound system, for example),
turn the power switches of all related devices OFF prior
to connecting or disconnecting audio and MIDI cables.
■ Handling and Transport
● Never apply excessive force to the controls, connec-
tors or other parts of the instrument.
● Always unplug cables by gripping the plug firmly, not by
pulling on the cable.
● Disconnect all cables before moving the instrument.
● Physical shocks caused by dropping, bumping, or
placing heavy objects on the instrument can result in
scratches and more serious damage.
■ Cleaning
● Clean the cabinet and panel with a dry soft cloth.
● A slightly damp cloth may be used to remove stubborn
grime and dirt.
● Never use cleaners such as alcohol or thinner.
● Avoid placing vinyl objects on top of the instrument
(vinyl can stick to and discolor the surface).
■ Electrical Interference
● This instrument contains digital circuitry and may cause
interference if placed too close to radio or television
receivers. If this occurs, move the instrument further
away from the affected equipment.
■ Data Backup
● Save all important data to disk before turning off for
longer periods.
● Internal data (e.g. Registration data) is retained in
memory even if the power switch is turned OFF when
backup batteries are installed as described above. If
you do not intend to use the PSR-4000 for an extended
period of time, it is a good idea to unplug the instrument
from the AC outlet and remove the batteries.
240V
1
3 0 V
110V
220V