Front Panel Function Controls
B
efore attempting any system interconnection, please familiarize yourself
with the front panel controls of the Concentra Integrated Amplifier. The
descriptions below refer to the letters associated with the features in the
diagram above.
Front Panel
A
VOLUME control: Rotating the VOLUME control clockwise increases
volume, while rotating the knob counter clockwise decreases volume.
The VOLUME control provides a fixed range of 99.5 dB in increments of
0.5 dB throughout a rotation of 330 degrees. If the VOLUME control is
rotated abruptly, the full range of 99.5 dB will be achieved within 110
degrees of rotation.
B
DISPLAY: Contains the IR receiver for receiving commands from the
remote control. Also displays the numerical Volume control position
from 0 to 99.5 dB in increments of 0.5 dB. If desired, your dealer can
internally configure the display to turn off after five seconds from
initiating any front panel command (Input Select, Volume, etc.) Please
contact your dealer for details.
C
MUTE push button: Momentarily pressing this push button mutes the
amplifier PRE OUT and SPEAKER OUTPUTS. The lamp above the MUTE
button illuminates. Pressing the push button again restores the normal
condition of the amplifier outputs. The MUTE lamp is not illuminated.
Pressing and holding in the Mute push button for five seconds, then
releasing, will reset the microprocessor and automatically recalibrate
internal circuitry. Initiate this function in the unlikely event of control
‘lock-up’ (caused by AC line brown-outs) or to reset the channel balance
to ‘center’ position if it has been changed via the remote control.
D
SOURCE push buttons 1-6: Momentarily pressing one of these buttons
selects the source (CD, tuner, etc.) connected to the associated rear
panel input (see Signal Connections). The lamp above the selected
source illuminates. In addition to being selected for listening, the
selected source signal is also routed to the PRE OUT and TAPE OUT
jacks on the rear panel (see Signal Connections).
E
TAPE MON push button: Momentarily pressing this button routes the
signal source (tape recorder) connected to the TAPE INPUT jacks to the
PRE OUT and SPEAKER OUTPUTS for monitoring and listening
purposes. The lamp above TAPE MON illuminates. Pressing the button a
second time restores normal operation. The TAPE MON lamp is not
illuminated. Note: The TAPE OUT outputs are unaffected by TAPE MON.
Front Panel Function Controls
