Roland AC-33 Benutzerhandbuch

Connect mains plug of this model to a mains 
socket outlet with a protective earthing 
connection.
Do not open (or modify in any way) the unit or its 
AC adaptor.

Do not attempt to repair the unit, or replace 
parts within it (except when this manual provides 
specific instructions directing you to do so). Refer 
all servicing to your retailer, the nearest Roland 
Service Center, or an authorized Roland distributor, 
as listed on the “Information” page.
Never install the unit in any of the following 
locations.

•  Subject to temperature extremes (e.g., direct 

sunlight in an enclosed vehicle, near a heating 
duct, on top of heat-generating equipment); 
or are

•  Damp (e.g., baths, washrooms, on wet floors); 

or are

•  Exposed to steam or smoke; or are
•  Subject to salt exposure; or are
•  Humid; or are
•  Exposed to rain; or are
•  Dusty or sandy; or are
•  Subject to high levels of vibration and 

shakiness.

Make sure you always have the unit placed so 

it is level and sure to remain stable. Never place 

it on stands that could wobble, or on inclined 

surfaces.
Be sure to use only the AC adaptor supplied 

with the unit. Also, make sure the line voltage 

at the installation matches the input voltage 

specified on the AC adaptor’s body. Other AC 

adaptors may use a different polarity, or be 

designed for a different voltage, so their use 

could result in damage, malfunction, or electric 

shock.
Use only the attached power-supply cord. Also, 

the supplied power cord must not be used 

with any other device.
Do not excessively twist or bend the power 

cord, nor place heavy objects on it. Doing 

so can damage the cord, producing severed 

elements and short circuits. Damaged cords 

are fire and shock hazards!
This unit, either alone or in combination with 

an amplifier and headphones or speakers, 

may be capable of producing sound levels 

that could cause permanent hearing loss. Do 

not operate for a long period of time at a high 

volume level, or at a level that is uncomfort-

able. If you experience any hearing loss or 

ringing in the ears, you should immediately 

stop using the unit, and consult an audiologist.
Do not allow any objects (e.g., flammable 

material, coins, pins); or liquids of any kind 

(water, soft drinks, etc.) to penetrate the unit. 

Immediately turn the power off, remove the AC 

adaptor from the outlet, and request servicing 

by your retailer, the nearest Roland Service 

Center, or an authorized Roland distributor, as 

listed on the “Information” page when:

•  The AC adaptor, the power-supply cord, or the 

plug has been damaged; or

•  If smoke or unusual odor occurs
•  Objects have fallen into, or liquid has been 

spilled onto the unit; or

•  The unit has been exposed to rain (or otherwise 

has become wet); or

•  The unit does not appear to operate normally 

or exhibits a marked change in performance.

In households with small children, an adult 

should provide supervision until the child is 

capable of following all the rules essential for 

the safe operation of the unit.
Protect the unit from strong impact.
(Do not drop it!)

Do not force the unit’s power-supply cord to 

share an outlet with an unreasonable number 

of other devices. Be especially careful when 

using extension cords---the total power used 

by all devices you have connected to the 

extension cord’s outlet must never exceed the 

power rating (watts/amperes) for the extension 

cord. Excessive loads can cause the insulation 

on the cord to heat up and eventually melt 

through.
Before using the unit in a foreign country, 

consult with your retailer, the nearest Roland 

Service Center, or an authorized Roland 

distributor, as listed on the “Information” page.
Batteries must never be recharged, heated, 

taken apart, or thrown into fire or water. 

 

 

Never expose Battery to excessive heat such as 

sunshine, fire or the like.

The unit and the AC adaptor should be located 

so their location or position does not interfere 

with their proper ventilation.
Always grasp only the plug on the AC adaptor 

cord when plugging into, or unplugging from, 

an outlet or this unit.
At regular intervals, you should unplug the AC 

adaptor and clean it by using a dry cloth to 

wipe all dust and other accumulations away 

from its prongs. Also, disconnect the power 

plug from the power outlet whenever the unit 

is to remain unused for an extended period of 

time. Any accumulation of dust between the 

power plug and the power outlet can result in 

poor insulation and lead to fire.

Try to prevent cords and cables from becoming 

entangled. Also, all cords and cables should be 

placed so they are out of the reach of children.
Never climb on top of, nor place heavy objects 

on the unit.

Never handle the AC adaptor or its plugs with 

wet hands when plugging into, or unplugging 

from, an outlet or this unit.
Before moving the unit, disconnect the AC 

adaptor and all cords coming from external 

devices.
Before cleaning the unit, turn off the power 

and unplug the AC adaptor from the outlet 

(p. 4).
Whenever you suspect the possibility of 

lightning in your area, disconnect the AC 

adaptor from the outlet.
If used improperly, batteries may explode 

or leak and cause damage or injury. In the 

interest of safety, please read and observe the 

following precautions (p. 4).

•  Carefully follow the installation instructions 

for batteries, and make sure you observe the 
correct polarity.

•  Avoid using new batteries together with used 

ones. In addition, avoid mixing different types 
of batteries.

•  Remove the batteries whenever the unit is to 

remain unused for an extended period of time.

•  If a battery has leaked, use a soft piece of cloth 

or paper towel to wipe all remnants of the 
discharge from the battery compartment. Then 
install new batteries. To avoid inflammation of 
the skin, make sure that none of the battery 
discharge gets onto your hands or skin. 
Exercise the utmost caution so that none of 
the discharge gets near your eyes. Immediately 
rinse the affected area with running water if any 
of the discharge has entered the eyes.

•  Never keep batteries together with metallic 

objects such as ballpoint pens, necklaces, 
hairpins, etc.

Used batteries must be disposed of in compli-

ance with whatever regulations for their safe 

disposal that may be observed in the region in 

which you live.
Do not remove the speaker grille and speaker 

by any means. Speaker not user replaceable. 

Shock hazardous voltages and currents are 

present inside the enclosure.

USING THE UNIT SAFELY

Used for instructions intended to alert the 

user to the risk of injury or material 

damage should the unit be used 

improperly. 
* Material damage refers to damage or 

other adverse effects caused with 

respect to the home and all its 

furnishings, as well to domestic animals 

or pets. 

Used for instructions intended to alert the 

user to the risk of death or severe injury 

should the unit be used improperly. 

The       symbol alerts the user to things that must be 

carried out. The specific thing that must be done is 

indicated by the design contained within the circle. In the 

case of the symbol at left, it means that the power-cord 

plug must be unplugged from the outlet. 

The       symbol alerts the user to important instructions or 

warnings.The specific meaning of the symbol is 

determined by the design contained within the triangle. In 

the case of the symbol at left, it is used for general 

cautions, warnings, or alerts to danger. 
The       symbol alerts the user to items that must never be 

carried out (are forbidden). The specific thing that must 

not be done is indicated by the design contained within 

the circle. In the case of the symbol at left, it means that 

the unit must never be disassembled. 

About       WARNING and       CAUTION Notices

About the Symbols