Front Panel Controls
4
ƒ
Test Button and Indicator
This button activates the test signal
that is used when adjusting output
levels. When the button is tapped
once the test noise will circulate
between the speakers at a two (2)
second interval. When you press
and hold the button for a few
seconds the test noise will circulate
for five (5) seconds at each speaker.
The red indicator above the button
will illuminate when the test noise is
present to remind you that the audio
output has momentarily been
changed. Press the button at any
time when the noise is heard to
cancel the test.
Note: The test signal noise is not
available when the ADP303 is in the
BYPASS mode. The test signal does
not circulate to the subwoofer in any
mode.
It is suggested that the five second
test noise be used for initial
adjustment of the output levels, and
the shorter two second circulation
be used as a final brief check after
adjustments have been made.
©
Mute Button and Indicator
Press this button to momentarily
silence the audio output of the
ADP303. Press it again to resume
normal operation. An indicator light
above the button will illuminate
when the MUTE button is engaged
to remind you that the unit is turned
on, but silenced. The MUTE function
will not work when the ADP303 is in
the BYPASS mode.
˙
Level Trim Controls
These controls are used to adjust
the audio output level of each
individual channel. Use the small
Allen wrench supplied with the
ADP303 to remove the cover when
adjustment of the level trims is
required.
î
Volume Control
This knob adjusts the master volume
level of the ADP303’s output. Turn it
clockwise to increase the volume
and counterclockwise to decrease
the volume.
When the ADP303 is used in a
system where the receiver/amplifier
(such as the AVR80 ) has a “6
Channel Direct” input, the volume
should be set to the “12 o’clock”
position.
å
Power Switch
Push this switch once to turn it on.
Press it again to turn the unit off. An
indicator above the power switch will
illuminate when the unit is turned on.
∫
Delay Time Button and
Indicators
Press this button to set the delay
time for the surround channels. Each
press of the button changes the
delay time by 5 milliseconds. The
delay time range is from no delay to
15 milliseconds. The indicator LEDs
above the Delay Time button
indicate the delay setting.
ç
Bypass Input Selector Button
Indicator
Press this button to remove the
ADP303 from the circuit when it is
installed between a preamp and
amplifiers. An indicator LED above
the button will light to indicate the
BYPASS mode.
∂
Digital Source Selectors
Press one of these buttons to select
the digital input source. An indicator
above the buttons will illuminate to
confirm the selections.
é
AC-3 Indicator
This LED will illuminate when a
digital source is selected and the
decoder has successfully locked to
the incoming digital signal.
POWER
Volume
Delay Time
0
5
10
15
Bypass
RF
Optical
Coaxial
Test
Mute
LEFT
CENTER
RIGHT
LEVEL TRIM
SUB. W
L • SURROUND • R
AC-3 D
I
G
I
T
A
L
AC-3
å
∫
ç
∂
é
©
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˙
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24093_ADP 303 Eng. 27/02/1998 10:34 Side 5
