Precautions - Yamaha SY55 Product Manual

PRECAUTIONS (PLEASE READ THIS BEFORE PROCEEDING!!)
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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. Opening 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 disconnecting cables.
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
The power requirements for the SY55 are clearly marked on the rear
panel. Make sure the specified mains voltage matches the voltage in your area
before using the unit!
8. Electrical Interference
Since the SY55 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 SY55 further away from the affected equip-
ment.
9. Memory Backup
The SY55 contains a special long-life battery that retains the contents of
its internal RAM memory even when the power is turned OFF. The backup
battery should last for approximately 5 years. When the battery voltage drops
to a level that is too low to maintain the memory contents, the following
message will appear on the SY55 display when the power is turned ON:
If this display appears, have the backup battery replaced by qualified
YAMAHA service personnel. DO NOT ATTEMPT TO REPLACE THE
BACKUP BATTERY YOURSELF!