Rane AD 22D User Manual download pdf (Page 4)

Manual-2

FRONT PANEL DESCRIPTION

1 SIGNAL LEDs: illuminate green 34 dB before clipping.

2 SENSITIVITY controls: vary incoming signal levels to the A to D converter. e output signal is also adjusted so the AD 22d

always passes signal with unity gain. (See operating instructions.)

3 CLIP LEDs: illuminate red 4 dB before clipping at the A to D converter input.

4 BYPASS buttons & LEDs: ese momentary push buttons toggle each channel’s hard-wired Bypass. If an LED is on, the given

channel is Bypassed and functions like a wire. If it is oﬀ the given channel is active.

5 STORE LED: ﬂashes green when the current conﬁguration of the AD 22d is diﬀerent from the stored conﬁguration. e

STORE LED is oﬀ when the current conﬁguration matches the stored conﬁguration.

6 STORE button: Stores the current Delay conﬁguration into both channel’s current Memory (A or B). e current Memory for

each channel is indicated by the MEMORY LED which is lit when editing that channel.

7 MEMORY LEDs: indicate the most recently recalled Memory, A or B, for each channel by illuminating yellow. ey also indi-

cate the Memory that is written to when the STORE button is pressed. e MEMORY LED ﬂashes when the current Delay value

for the selected channel is diﬀerent than the stored value for the selected channel.

8 RECALL button: Pressing this pushbutton alternately Recalls stored Memories A and B, for the channels(s) indicated by the

green CHAN LEDs.

9 CHANNEL LEDs: indicate the channel number whose value is currently being displayed in the LED display and whose current

Delay value is editable by illuminating green. If both CHAN LEDs are on, both channel’s current Delay values are editable. In this

edit BOTH mode, the LED display shows the smaller of the two current Delay values and the memory LEDs turn oﬀ if the two

channel’s current Memories are not the same.

0 CHANNEL button: Pressing this button advances the channel LEDs from CHAN 1 to CHAN 2 to BOTH. e current Delay

value of the selected channel is displayed in the LED display.

q DISPLAY MODE button & LEDs: is button changes the units of displayed Delay values from Milliseconds to Feet to Meters.

e LEDs indicate the current Display Mode: MILLISECONDS, FEET or METERS.

w 5-digit LED display: indicates the current Delay value for the selected channel. When both channels are selected, the smaller of

the two channel’s current Delay values is displayed. is display also shows the current temperature setting when holding down

the DISPLAY MODE button and pressing one of the up/down buttons. On power-up the current software revision is displayed.

e UP/DOWN buttons: Pressing these buttons increases/decreases the amount of Delay in the selected Channel(s). e two buttons

just to the right of the LED display change Delay time in 1 millisecond steps. e far right buttons provide 10 microsecond steps.

For distance displays (feet and meters), these buttons are FINE and COARSE adjustments, since Delay increments are always in 1

msec and 10 µsec steps, regardless of the DISPLAY MODE.

r TEMPERATURE setting: Holding down DISPLAY MODE while pressing the up/down buttons displays the current tempera-

ture setting in degrees Celsius for the 1 msec/COARSE buttons and degrees Fahrenheit for the 10 µsec/FINE buttons. Further

up/down presses change the temperature setting. No matter which unit (°C or °F), adjustments are always in 1°C steps (or 1.8°F).

BYPASS

STORE

RECALL

CHAN

MILLISECONDS

MODE

MEMORY

2 A B

DISPLAY

1 ms

μs

1 2

SIGNAL CLIP

GNAL

SENSITIVITY SENSITIVITY

CLIP

0 -16

+4 -2

-4 -1

-8

0 -16

+4 -2

-4 -1

-8

AD 22d

METERS

FEET

AUDIO DELAY

-10 dBV -10 dB

HOLD TO SET TEMP

COARSE

FINE

°C °F

31 2

1 3

4 9

12 13

5 7

1 2 3 4 5 6

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Rane AD 22D User Manual Page 4

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