Roland HP107 用户手册

 

291b

 

301

 

• Do not connect this unit to same electrical outlet that is 

being used by an electrical appliance that is controlled by 
an inverter (such as a refrigerator, washing machine, 
microwave oven, or air conditioner), or that contains a 
motor. Depending on the way in which the electrical 
appliance is used, power supply noise may cause this unit 
to malfunction or may produce audible noise. If it is not 
practical to use a separate electrical outlet, connect a power 
supply noise filter between this unit and the electrical 
outlet.

 

307

 

• Before connecting this unit to other devices, turn off the 

power to all units. This will help prevent malfunctions 
and/or damage to speakers or other devices.

 

308

 

• Although the LCD and LEDs are switched off when the 

POWER switch is switched off, this does not mean that the 
unit has been completely disconnected from the source of 
power. If you need to turn off the power completely, first 
turn off the POWER switch, then unplug the power cord 
from the power outlet. For this reason, the outlet into 
which you choose to connect the power cord’s plug should 
be one that is within easy reach and readily accessible.

 

351

 

• Using the unit near power amplifiers (or other equipment 

containing large power transformers) may induce hum. To 
alleviate the problem, change the orientation of this unit; or 
move it farther away from the source of interference.

 

352a

 

• This device may interfere with radio and television 

reception. Do not use this device in the vicinity of such 
receivers.

 

352b

 

• Noise may be produced if wireless communications 

devices, such as cell phones, are operated in the vicinity of 
this unit. Such noise could occur when receiving or initi-
ating a call, or while conversing. Should you experience 
such problems, you should relocate such wireless devices 
so they are at a greater distance from this unit, or switch 
them off.

 

354b

 

• Do not expose the unit to direct sunlight, place it near 

devices that radiate heat, leave it inside an enclosed 
vehicle, or otherwise subject it to temperature extremes. 
Also, do not allow lighting devices that normally are used 
while their light source is very close to the unit (such as a 
piano light), or powerful spotlights to shine upon the same 
area of the unit for extended periods of time. Excessive 
heat can deform or discolor the unit.

 

355b

 

• When moved from one location to another where the 

temperature and/or humidity is very different, water 
droplets (condensation) may form inside the unit. Damage 
or malfunction may result if you attempt to use the unit in 
this condition. Therefore, before using the unit, you must 
allow it to stand for several hours, until the condensation 
has completely evaporated.

 

356

 

• Do not allow rubber, vinyl, or similar materials to remain 

on the unit for long periods of time. Such objects can 
discolor or otherwise harmfully affect the finish.

 

358

 

• Do not allow objects to remain on top of the keyboard. This 

can be the cause of malfunction, such as keys ceasing to 
produce sound.

 

359

 

• Do not paste stickers, decals, or the like to this instrument. 

Peeling such matter off the instrument may damage the 
exterior finish.

 

401b

 

• To clean the unit, use a dry, soft cloth; or one that is 

slightly dampened. Try to wipe the entire surface using an 
equal amount of strength, moving the cloth along with the 
grain of the wood. Rubbing too hard in the same area can 
damage the finish.

 

402

 

• Never use benzine, thinners, alcohol or solvents of any 

kind, to avoid the possibility of discoloration and/or 
deformation.

• The pedals of this unit are made of brass.

Brass eventually darkens as the result of the natural 
oxidization process. If the brass becomes tarnished, polish 
it using commercially available metal polisher.

 

452

 

• Please be aware that all data contained in the unit’s 

memory may be lost when the unit is sent for repairs. 
Important data should always be backed up in another 
MIDI device (e.g., a sequencer), or written down on paper 
(when possible). During repairs, due care is taken to avoid 
the loss of data. However, in certain cases (such as when 
circuitry related to memory itself is out of order), we regret 
that it may not be possible to restore the data, and Roland 
assumes no liability concerning such loss of data.

 

551

 

• Please be aware that the contents of memory can be 

irretrievably lost as a result of a malfunction, or the 
improper operation of the unit. To protect yourself against 
the risk of loosing important data, we recommend that you 
periodically save a backup copy of important data you 
have stored in the unit’s memory in another MIDI device 
(e.g., a sequencer).

 

552

 

• Unfortunately, it may be impossible to restore the contents 

of data that was stored in the unit’s memory and another 
MIDI device (e.g., a sequencer) once it has been lost. 
Roland Corporation assumes no liability concerning such 
loss of data.

 

553

 

• Use a reasonable amount of care when using the unit’s 

buttons, sliders, or other controls; and when using its jacks 
and connectors. Rough handling can lead to malfunctions.

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