SpeakerCraft Big Bang DBB12100, Руководство пользователя

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The amplifier is designed to function trouble-free. Most problems occur
because of operating errors. If you have a problem please check the
troubleshooting list first. For technical inquires, please call 1-800-448-0976 or
e-mail us at techsupport@speakercraft.com
.
CONNECTING THE LINE LEVEL AUDIO INPUTS
CAUTION: Only make connections when the amplifier is turned off.
There are three areas that an input signal can be connected: BUS, AUX and
LINE IN. Refer to the System Design Examples to determine which is best suited
for your application.
AUDIO OUTPUTS
Sources connected to the BUS or AUX inputs can be forwarded to other
components or amplifiers by connecting to the corresponding output sections
to the right of each input section. By using standard audio patch cables, you
can connect these outputs to the inputs of another amplifier. Up to 5
SpeakerCraft amplifiers can be daisy-chained together.
AC POWER
Plug the AC cord supplied with the amplifier into the 3-prong IEC receptacle
on the rear of the amplifier. Plug the 3-prong line cord plug directly into a
120V 60 Hz wall outlet.
CAUTION: Do not plug the amplifier into the preamplifier or receiver’s
switched AC outlet. If you wish to have the amplifier turn on once the pre-
amplifier or receiver is activated, use the TRIGGER Input.
See Diagram 1 for the location of the following:
Power Switch
The switch marked “Power” on the front panel of the amplifier will turn off all
amplifier circuitry, including the TRIGGER Input.
Active LED
When lit, the Active LED indicates that the amplifier is operating.
Protection LEDs
When lit the “Protection” LEDs located on the front of the amplifier indicate
that either a fault in the wiring, the speaker, or the amplifier has caused the
channels associated with the LED to shut down.
Level Adjustment Knobs
The level adjustment knobs on the back panel of the amplifier can be used to
adjust the level of each channel in order to closely match other levels in the
system, or to limit the maximum volume level in certain rooms.
OPERATION
TROUBLESHOOTING
No sound is heard on all channels. Audio cable to the source component
is not connected properly or the cable
is bad. Use another cable that you
know is good.
The Input Selection switch is posi-
tioned incorrectly. Refer to installation
instructions for proper settings.
Some or all of the internal fuses are
blown. Return the amplifier to your
SpeakerCraft dealer for servicing.
No sound is heard on one or some
channels. Audio cable to the source component
is not connected properly or the cable
is bad. Use another cable that you
know is good.
The Input Selection switch is posi-
tioned incorrectly. Refer to installation
instructions for proper settings.
Check the termination points of the
speaker cable at both the amplifier
and speaker.
A speaker is not working. Make sure
by connecting the channel to a
speaker that you know to be working.
The level adjustment on the channel
is turned all the way down. Turn it
clockwise to raise the volume.
Some or all of the internal fuses are
blown. Return the amplifier to your
SpeakerCraft dealer for servicing.
The Problem Possible Causes And Solutions