Yamaha SPX50D - Manual (Page 4)

PRECAUTIONS
1. 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.
2. AVOID PHYSICAL SHOCKS
Strong physical shocks to the unit can cause damage.
Handle it with care.
3. 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.
4. 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.
5. HANDLE CABLES CAREFULLY
Always plug and unplug cables — including the AC cord —
by gripping the connector, not the cord.
6. 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.
7. ALWAYS USE THE CORRECT POWER SUPPLY
Make sure that the power supply voltage specified on the
rear panel matches your local AC mains supply.
8. 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.
9. 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!