Yamaha PC4800N - Manual (Page 4)

4
CAUTION
Installation
• Keep this unit away from the following locations:
- Locations exposed to oil splashes or steam, such as near
cooking stoves, humidifiers, etc.
- Unstable surfaces, such as a wobbly table or slope.
- Locations exposed to excessive heat, such as inside a car
with all the windows closed, or places that receive direct
sunlight.
- Locations subject to excessive humidity or dust accumula-
tion.
• Hold the power cord plug when disconnecting it from an AC
outlet. Never pull the cord. A damaged power cord is a
potential fire and electrical shock hazard.
• Do not touch the power plug with wet hands. Doing so is a
potential electrical shock hazard.
• This unit has ventilation holes at the rear to prevent the
internal temperature rising too high. Do not block them.
Blocked ventilation holes are a fire hazard.
• To relocate the unit, turn the power switch off, remove the
power plug from the AC outlet, and remove all connecting
cables. Damaged cables may cause fire or electrical shock.
• Allow enough free space around the unit for normal ventila-
tion. This should be: 5 cm at the sides, 10 cm behind, and 10
cm above.
For normal ventilation during use, remove the rear of the rack
or open a ventilation hole.
If the airflow is not adequate, the unit will heat up inside and
may cause a fire.
• To mount several of these units in an EIA-compliant rack,
refer to the rack mounting instructions on page 10.
Operation
• Use only speaker cables when connecting speakers to
amplifier outputs. Using other types of cables is a fire hazard.
• Do not use this amplifier for any purpose other than driving
loudspeakers.
PRECAUTIONS FOR OPERATION – FOR CORRECT OPERATION –
Connector pin assignments
• XLR-type connectors are wired as follows: pin 1: ground, pin
2: hot (+), and pin 3: cold (–).
Influence on cell phone usage
• Using a cell phone (mobile telephone) near this unit may
induce noise. If noise occurs, use the telephone away from the
unit.