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PRECAUTIONS
. AVOID EXCESSIVE HEAT, HUMIDITY, DUST
AND VIBRATION
Keep the unit away from locations where it is likely to be
exposed to high temperatures or humidity — such as near
radiators, stoves, etc. Also avoid locations which are subject
to excessive dust accumulation or vibration which could
cause
mechanical damage.
. AVOID PHYSICAL SHOCKS
Strong physical shocks to the unit can cause
damage.
Handle
it with care.
. DO NOT OPEN THE CASE OR ATTEMPT
REPAIRS OR MODIFICATIONS YOURSELF
This product contains no user-serviceable parts. Refer all
maintenance to qualified Yamaha service personnel. Open-
ing the case and/or tampering with the internal circuitry will
void the warranty.
. MAKE SURE POWER IS OFF BEFORE MAKING
OR REMOVING CONNECTIONS
Always turn the power OFF prior to connecting or discon-
necting cables. This is important to prevent damage to the
unit itself as well as other connected equipment.
. HANDLE CABLES CAREFULLY
Always plug and unplug cables — including the AC cord —
by gripping the connector, not the cord.
. CLEAN WITH A SOFT DRY CLOTH
Never use solvents such as benzine or thinner to clean the
unit. Wipe clean with a soft, dry cloth.
. ALWAYS USE THE CORRECT POWER SUPPLY
Make sure that the power supply voltage specified on the
rear panel matches your local AC mains supply.
. ELECTRICAL INTERFERENCE
Since the SPX50D contains digital circuitry, it may cause
interference and noise if placed too close to TV sets, radios
or similar equipment. If such a problem does occur, move
the SPX50D
further away from the affected equipment.
. BACKUP, BATTERY
The SPX50D contains a long-life lithium battery which main-
tains the contents of the buffer and user memory locations
even
when the unit is turned OFF. With normal use the
battery should
last for approximately 5 years. If the battery
voltage falls below the safe level, however, the "*** WARN-
ING *** LOW BATTERY"
display will appear on the LCD
when the: power is first turned ON.
If this occurs, have the
battery replaced by a qualified Yamaha
service center. Do
not attempt to replace the battery yourself!
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