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11

How to Use Auto Adjust

The Auto Adjust function is used during sound checks
to make adjustments for eliminating feedback. After
all equipment is connected, run the auto adjust
procedure during silent conditions (i.e., with no
sound entering the microphone).

Before beginning Auto Adjust, set the switches for
each function to the settings that will be used in
performance. For more information about each
function, please see “About the Function Setting
Switches” (page 13).

* Anti-feedback filter settings made during Auto Adjust

are preserved even after the power is turned off. Settings
are recalled when the power is turned back on.

* Do not talk into the microphone during Auto Adjust.

1.

Turn the microphone switch to “On,” set mixer,
power amp, and other equipment levels, then
bring up the microphone volume until the desired
level is reached.

2.

Press the [START] button. The Auto indicator
flashes, and Auto Adjust begins 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. The anti-feedback filter settings are fixed.
At this point, feedback adjustments made with
Auto Adjust are complete.

Lit

* Once all twelve anti-feedback filters are set, Auto Adjust

automatically ends (regardless of the safety margin), and
the anti-feedback filter settings are fixed (see “About the
Safety Margin” on page 12).

Stopping Auto Adjust While in
Progress

Press the [SET] button. The Auto indicator light goes
on, and anti-feedback filter settings made up to that
point are set.

Continuing/Resuming Auto
Adjust

Press the [START] button. Auto Adjust resumes, using
settings made up to the point of cancellation.

Canceling the Anti-Feedback
Filter

Hold down the [CLEAR] button for approximately
two seconds. The Auto Indicator light goes off, and all
anti-feedback filters are cleared.

Restarting Auto Adjust From the
Beginning

2

1

First hold down the [CLEAR] button; this clears filters
that have been set. Then press the [START] button to
run Auto Adjust.

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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