Precautions - Yamaha GW33 Owner's Manual

PRECAUTIONS

USE THE CORRECT POWER SUPPLY
Power to the GW33 should be supplied only from the
appropriate Yamaha AC adaptor (the PA-3, or another
adaptor recommended by Yamaha). Use of another
adaptor may cause serious damage to the unit. (Never use
the PA-3B.) Also make sure that the adaptor you have is
appropriate for the AC mains supply voltage in the area
where you intend to use the GW33. (The correct input
voltage is marked on the adaptor.)
AVOID EXCESSIVE HEAT, HUMIDITY, DUST
AND VIBRATION
Keep the unit away from locations where it is likely to be
exposed to high temperatures (such as direct sunlight) or
humidity. Also avoid locations which are subject to
excessive dust accumulation or vibration which could
cause mechanical damage.
AVOID PHYSICAL SHOCKS
Although the GW33 has been constructed to withstand the
normal rigors of stage and studio use for optimum sturdi-
ness and reliability, avoid subjecting it to strong physical
shocks (such as dropping or hitting it), since this may
damage the unit. Since the GW33 is a precision-made
electronic device, also avoid applying excessive force to
the various controls.
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 in any way with the
internal circuitry will void the warranty.
MAKE SURE POWER IS OFF BEFORE MAK-
ING OR REMOVING CONNECTIONS
Always turn the power off prior to connecting or discon-
necting cables.
HANDLE ALL CONNECTIONS CAREFULLY
Always be careful to connect and disconnect all cables and
cords by gripping the connector itself, not by pulling on
the cord.
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CLEAN WITH A SOFT, DRY CLOTH
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Never use solvents such as benzine or thinner to clean the
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unit, since these will damage the finish. Wipe clean with a
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soft, dry cloth. If necessary, use a soft, clean slightly
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moistened cloth — making sure to wipe the case off again
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with a dry cloth.
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ELECTRICAL INTERFERENCE
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1 1 Since the GW33 contains digital circuitry, it may cause
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interference and noise if placed too close to TV sets,
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radios or similar equipment. If such a problem occurs,
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move the GW33 further away from the affected equip-
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ment.
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