Yamaha PortaSound PSS-51 Owner's Manual page 5

PRECAUTIONS
GETTING STARTED
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. Also, avoid
areas subject to excessive dust accumulation or vibration
as these could cause mechanical damage.
2. ELECTRICAL INTERFERENCE
The PSS-51 contains digital circuitry that may cause
electrical interference if placed too close to television
Puts, radios, or similar equipment. Keep affected equip-
ment a reasonable distance away from the PSS-51.
3. AVOID PHYSICAL SHOCKS
Strong physical shocks to the unit can cause damage.
Handle with care.
4. TAKE CARE WHEN CONNECTING AND DIS-
CONNECTING CABLES
Always turn the power switch OFF prior to connecting
and disconnecting cables. Connect all cables, including
the AC cord, by gripping the connector, not the cable.
As well, unplug the unit if it is not to be used over a
long period of time.
5.DO NOT OPEN THE CASE OR ATTEMPT RE-
PAIRS OR MODIFICATIONS
[he PSS-51 does not contain any user-serviceable parts.
Refer all maintenance to qualified Yamaha service
personnel only. Opening the case or tampering with the
internal circuitry will void the warranty.
6. CLEAN WITH A SOFT DRY CLOTH
Never use solvents such as benzene or thinner to clean
the unit. Wipe clean with a soft, dry cloth.
7. MEMORY RETENTION
Memory backup for the PSS-51 is supplied by AC power
and batteries. Memory will not be lost when the unit is
turned OFF as long as the power cord is connected or
there is enough battery power. If the power cord is
unplugged and there is no battery power, all data in
memory will be lost. Make sure there is adequate power |
supply present, especially when using the SONG
MEMORY and REGISTRATION MEMORY functions.
Yamaha is not responsible for damage caused
by improper usage.