Harman Kardon PA 2000, Руководство по обслуживанию

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INSTALLATION & CONFIGURATION
SAFETY NOTE: When making connections
between any source components such
as AV receivers, surround processors or
multiroom controllers and the PA 2000,
or when making any connections to
speakers, be certain that both the source
device and the PA 2000 are turned off. To
ensure that there will be no unwanted
signal transients that can damage equip-
ment or speakers, it is always best to
unplug all equipment before making any
connections. Modern electronic products
often have a “standby” mode that may
be activated even though the product
may appear to be turned off.
Power Control Connections
The PA 2000 features a built-in remote turn-on
system that will automatically turn on either or
both of the amplifier pairs in one of three ways.
Depending on your specific application, the unit
may be turned on manually using the
Power
Switch
1
, or via automatic sensing of either
an input source or a low-voltage trigger signal.
For manual operation, no special installation is
required. For automatic turn-on, follow the
instructions below for the chosen trigger
method.
Note that when the unit is operated in the
standard, two-pair output mode, each of the
channel pairs may be operated by the same
trigger method, or they may be turned on via
different methods.
Remote Turn-On From an External Device
Using the Low-Voltage Trigger
To configure the PA 2000 so that either or both
of the channel pairs turn on automatically in
response to a low-voltage trigger signal, follow
these steps:
1. Place the
Power Control Mode Switch
£
for either channel in the center position,
so that the switch is over the words “AC/DC
TRIGGER”.
2a.To trigger the amplifier from a device such
as a preamp surround processor or multi-
room controller with a built-in trigger jack,
connect one end of a cable with a 3.5mm
mono mini-plug to the
Trigger Jack
§
on
the PA 2000. Connect the other end to a
matching jack on the device that will pro-
vide a 3-volt to 30-volt signal when the unit
is to be turned on.
or
2b.To trigger the amplifier using the switched
AC accessory outlet on an AV receiver or
other source device, purchase a small AC to
DC power converter, as is typically used to
replace the batteries in portable electronics
devices. Select a model that is capable of
delivering 3 to 12 volts DC, and make cer-
tain that one of the “tips” provided with the
unit is a 3.5mm mini-plug. Plug the trans-
former end of the converter into the
switched AC output on the source product,
and connect the 3.5mm mini-plug to the
Trigger Jack
§
.
3. Press the Power Switch
1
in so that it is
engaged, and note that the Standby
Indicator
3
will light for the channel pairs
selected for trigger control operation.
When the source control unit providing the
power is turned on, the PA 2000 will automati-
cally turn on. When the source unit is turned
off, the PA 2000 will return to the Standby
mode.
Remote Turn-On Using Music Sense
To configure the PA 2000 so that either or both
of the channel pairs turn on automatically
when the amplifier is receiving an audio signal,
follow these steps:
• Connect the audio input as normal to the
audio Input Jacks
¡
.
• For each channel pair that you wish to con-
trol using an incoming audio signal, slide the
Power Control Mode Switch
£
to the
far left so that the switch is under the words
“MUSIC SENSE”.
• Press the Power Switch
1
in so that it is
engaged, and note that the Standby
Indicator
3
will light for the channel pairs
selected for trigger control operation.
In this configuration, the PA 2000 will automat-
ically turn on whenever it is receiving an audio
input signal. The unit will return to the Standby
mode 10 to 15 minutes after the audio signal
stops.
NOTE: When the PA 2000 is used in the
Bridged mode as a single-pair stereo amplifier,
use the
Power Control Mode Switch
£
in
the area labeled “BRIDGE/CHANNEL ONE” to
make the settings for the desired turn-on mode.
Installation and Configuration
PA2000 harman/kardon
5