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■ Location
Do not use the P-150 in locations where it will be exposed to
direct sunlight, extreme temperatures, high humidity or
excessive dust or vibration.
■ Handling
Avoid rough handling. Do not drop the P-150 or subject it to
shock, as these can damage the instrument’s internal circuitry.
Also, do not apply excessive force to the controls or terminals.
When moving the P-150, first unplug the AC power cord and all
other cables to prevent damage to the cords and jacks. When
removing plugs from terminals, always grip the plugs directly
rather than pulling on the cord.
■ Cleaning
To clean the P-150, use a slightly moist cloth and a neutral
cleanser. Do not use abrasive cleansers, waxes, solvents, or
chemically treated cloths, as these may damage the cabinet’s
finish or dull the keys.
■ AC Power
The power requirements of your P-150 has been set to match
the main power supply voltage in your area. Make sure that your
local AC mains voltage matches the voltage as specified on the
name plate located on the rear panel of your P-150. If you plan
to use your P-150 in an area with a different voltage, be sure to
use an appropriate converter. If you have any doubts about
voltage compatibility, please consult your local Yamaha dealer.
■ Electromagnetic Interference
Avoid using your P-150 near televisions, radios or other devices
which generate electromagnetic fields, as electromagnetic
interference can cause the P-150 to malfunction, and may
generate interference noise in the other devices as well.
■ Extended Disuse
Electrical storms can cause power surges which can damage the
P-150’s circuitry even if the power switch is turned off. Therefore,
it is best to disconnect the P-150’s power cord from the AC outlet
when you will not be using it for an extended period of time.
■ Service and Modification
The P-150 contains no user serviceable parts, so never open the
instrument’s cabinet or tamper with the internal circuitry or
mechanisms in any way. Doing so can result in electrical shock
or damage to the P-150. Refer all servicing to qualified Yamaha
service personnel.
■ Backup Battery
The P-150’s internal settings are preserved by a lithium backup
battery which has a life span of approximately five years. (The
battery’s life span may differ, depending on the time elapsed
between your P-150’s date of manufacture and the date you
purchased it.) When the battery charge runs low, the “ERROR1
REPLACE BATTERY” error message will appear in the LCD
screen. If this message appears, save any settings you may
want to keep to an external data storage device (such as the
Yamaha MDF2 Data Filer) using the bulk dump procedure, then
contact a qualified Yamaha service center to have the battery
replaced. Do not attempt to replace the backup battery yourself!
YAMAHA CANNOT BE HELD RESPONSIBLE FOR DAMAGE
CAUSED BY IMPROPER HANDLING OR OPERATION OF THE
P-150!
The LCD screen displays as illustrated in this manual are for instructional
purposes only, and may appear somewhat different from your P-150’s.