Yamaha PW1D - Manual (Page 3)

3
• Hold the power cord plug when disconnecting from
an AC outlet. Never pull the cord. Damaging the
power cord in this way is a potential fire and electrical
shock hazard.
• Do not place small metal objects on top of the power
supply unit. Metal objects inside the power supply
unit are a fire and electrical shock hazard.
• Do not block the power supply unit ventilation slots.
The power supply unit has ventilation slots at the
front and rear to prevent the internal temperature
from rising. Blocked ventilation slots are a fire hazard.
• Leave a reasonable amount of free-air space around
the power supply unit.
• If the power supply unit is to be rack mounted, leave
at least 10 cm free above the top panel and behind the
rear panel. When the power supply unit is in use,
remove the rear of the rack, or open its ventilation
slots to prevent overheating, which could be a fire
hazard.
• Do not try to modify the power supply unit. This
could be a fire and electrical shock hazard.
• The power supply unit operating temperature is
between 10˚C and 35˚C (58˚F and 95˚F).
• If you notice any abnormality—such as smoke, odor,
or noise—turn off the power supply unit immediately.
Remove the power cord from the AC outlet. Confirm
that the abnormality is no longer present. Consult
your dealer for repair. Using the power supply unit in
this condition is a fire and shock hazard.
• If a foreign object or water gets inside the power sup-
ply unit, turn it off immediately. Remove the power
cord from the AC outlet. Consult your dealer for
repair. Using the power supply unit in this condition
is a fire and electrical shock hazard.
• If you plan not to use the power supply unit for a long
period of time, remove the power cord from the AC
outlet. Leaving the power supply unit connected is a
fire hazard.
• Do not use benzene, thinner, cleaning detergent, or a
chemical cloth to clean the power supply unit. Use
only a soft, dry cloth.
• The power supply unit uses high-frequency digital cir-
cuits that may cause interference on radios and televi-
sions placed close to it. If interference does occur,
relocate the affected equipment.
• The power supply unit is equipped with the ground
connector to avoid the risk of electrical shock.
Be sure to ground the unit before you insert the power
plug into an AC outlet.
If the power cord has three pins and the ground con-
nector on the AC outlet is grounded, the unit will be
grounded effectively.
Operating Notes
• The power must be turned on/off using the POWER
switch of this unit. Do not turn the power on/off by
plugging in the power cable, or by using a power strip
or circuit breaker. Doing so may cause malfunctions.
• Do not rapidly turn on and off the POWER switch of
this unit. Doing so may cause excessive current to
damage the system. You must allow at least five sec-
onds to elapse between power-on and power-off.
Rack Mounting Caution
If the unit is rack mounted and transported regularly,
for example, when on a tour, we recommend that the
rear of the unit be supported by fitting a pair metal
brackets, one each side. The following drawing pro-
vides the information necessary to make such brack-
ets.
Note that only one bracket is shown here and the
bracket for the other side must be bent in the opposite
direction.
86.5
20.5
3.1
4- ø 6.5
2-R2
R2
2-R2
R5
t = 1.6
(82.1)
76.2
44.45
31.75
5.9
0
36.5 14.5
7.5
8 0
12
134 200
0