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USING THE UNIT SAFELY

ALWAYS OBSERVE THE FOLLOWING

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. 

WARNING

CAUTION 

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. 

• Before using this unit, make sure to read the

instructions below, and the Owner's Manual.

......................................................................................................

• 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 pro-
vides specific instructions directing you to do
so). Refer all servicing to your dealer, or quali-
fied Roland service personnel.

......................................................................................................

• Never use or store the unit in places that are:

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

sunlight in an enclosed vehicle, near a heat-
ing duct, on top of heat-generating equip-
ment); or are

•Damp (e.g., baths, washrooms, on wet

floors); or are

•Humid; or are
•Dusty; or are
•Subject to high levels of vibration.

......................................................................................................

• This unit should be used only with a rack or

stand that is recommended by Roland.

......................................................................................................

• When using the unit with a rack or stand rec-

ommended by Roland, the rack or stand must
be carefully placed so it is level and sure to
remain stable. If not using a rack or stand, you
still need to make sure that any location you
choose for placing the unit provides a level sur-
face that will properly support the unit, and
keep it from wobbling.

......................................................................................................

• 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.

......................................................................................................

• Avoid damaging the power cord. Do not bend

it excessively, step on it, place heavy objects on
it, etc. A damaged cord can easily become a
shock or fire hazard. Never use a power cord
after it has been damaged.

......................................................................................................

• 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 vol-
ume level, or at a level that is uncomfortable.  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.

......................................................................................................

WARNING

WARNING

Summary of Contents for AF-70

Page 1: ...hnical Light Sound Center Khaled Ibn Al Walid St P O Box 13520 Damascus SYRIA TEL 011 2235 384 TURKEY Barkat Muzik aletleri ithalat ve ihracat limited ireketi Siraselviler Cad Billurcu Sok Mucadelle C...

Page 2: ...sonnel Never use or store the unit in places that are Subject to temperature extremes e g direct sunlight in an enclosed vehicle near a heat ing duct on top of heat generating equip ment or are Damp e...

Page 3: ...ion 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 con sult with your dealer or qualified Roland ser vice p...

Page 4: ...y Dynamic Adjust Instantly cuts sudden unexpected feedback Diffuse Function Suppresses the ringing and coloration that occur just before the onset of feedback Built In Functions Effective for Use with...

Page 5: ...h impregnated with a mild non abrasive detergent Afterwards be sure to wipe the unit thoroughly with a soft dry cloth Never use benzene thinners alcohol or solvents of any kind to avoid the possibilit...

Page 6: ...cillatingwhine Turning up the microphone volume pointing the microphone at the speaker bringing the microphone too close to the speaker or raising speaker output levels so that the sound enters the mi...

Page 7: ...Wide Dynamic Diffuse Limiter Enhancer Low Cut Filter and Hi Cut Filter For more information about each of these functions please refer to About the Function Setting Switches on page 13 When altering...

Page 8: ...tch Should ordinarily be set to NOR normal If noise arising from a ground loop should occur while using balanced connections switch it to LIFT INPUT Jack Accepts connection of microphones or the outpu...

Page 9: ...ne plug and is used for balanced input output Unbalanced input output is also supported 2 1 3 1 1 GND 2 HOT 3 COLD 2 3 HOT COLD GND MakingtheConnections As shown in the diagram connect any peripheral...

Page 10: ...ck may occur momentarily during Auto Adjust this is due to the feedback detection operation and settings being made for the safety margin there is nothing abnormal about this Feedback ceases after a b...

Page 11: ...operation Flashing 3 Auto Adjust ends automatically after securing a safety margin of approximately 12 dB The Auto indicator stops flashing and instead will light steadily Theanti feedbackfiltersetti...

Page 12: ...dwidth is automatically slightly broadened and feedback from multiple frequencies is removed with one filter A bandwidth of 1 20 of an octave corresponds to the definition achieved with a 200 band gra...

Page 13: ...hone you can cause the frequency at which feedback is occurring to shift and suppress the growth of feedback The Diffuse function creates such changes in a virtual manner It is also effective in reduc...

Page 14: ...ancer Function Low Cut Filter High Cut Filter Phantom Power 48 V Output Phase Function Output Ground Lift Function Connectors INPUT XLR 3 31 Type 1 4 inch TRS Phone Type for common use OUTPUT XLR 3 32...

Page 15: ...n outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help Unauthorized changes or modification to this system can v...

Page 16: ...hnical Light Sound Center Khaled Ibn Al Walid St P O Box 13520 Damascus SYRIA TEL 011 2235 384 TURKEY Barkat Muzik aletleri ithalat ve ihracat limited ireketi Siraselviler Cad Billurcu Sok Mucadelle C...

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