Harman Kardon PA 2000, Service Manual

Page: 5 / 104

REAR PANEL CONNECTIONS
Rear Panel Connections
£ ¢ ∞ §
¶
ª £ ¡ ™
•
260W
¡
Input Jacks
™
Output Jacks
£
Power Control Mode Switches
¢
Output Level Trim Controls
∞
Bridge/Normal Switch
§
Trigger Jack
¶
Channel 1 Output Speaker Terminals
•
Channel 2 Output Speaker Terminals
ª
AC Power Cord Receptacle
¡
Input Jacks: Connect these jacks to the
left/right output of the AV receiver, preamp, sur-
round processor, multiroom controller or other
source used to feed the PA 2000.
™
Output Jacks: These jacks provide a parallel
feed of the input signal. In systems where more
than one PA 2000 is used, they may be connected
to the Input Jacks of the additional amplifier.
£
Power Control Mode Switch: (One for
each channel pair) This three-position switch
determines the method by which the PA 2000
will be placed in the active, or ON, position for
10 to 15 minutes:
• When the switch is in the far right position,
under ON, the unit will be turned on when the
front panel
Power Switch
1
is pressed in.
• When the switch is in the middle position, over
the words “AC/DC TRIGGER”, the unit will
automatically turn on when a 3-volt to 30-volt
signal is applied to the
Trigger Jack
§
.
• When the switch is in the far left position,
under the words “MUSIC SENSE”, the unit will
automatically turn on when an audio signal is
present at the
Input Jacks
¡
. The unit will
automatically turn off when the signal is no
longer present.
¢
Output Level Trim Controls (One for each
channel pair) These trim controls are used to
adjust the output level for each channel pair.
∞
Bridge/Normal Switch: This switch deter-
mines whether the unit operates in the
“Bridged” condition or in the Normal mode.
Please be certain to disconnect the power from
the unit when operating this switch.
• When the switch is in the right position, over
the word “NORMAL”, the unit will provide two
output feed pairs for a total of four output
channels.
• When the switch is in the left position, under
the word “BRIDGED”, the unit will function as
a stereo amplifier, with a single high-power
output feed into two output channels.
§
Trigger Jack: Connect this jack to the out-
put of a compatible product capable of feeding
a 3-volt to 30-volt signal to the jack when
amplifier operation is desired. When one of the
channel pairs has the
Power Control Mode
Switch
£
set to the middle, or AC/DC trigger,
position, that channel pair will automatically
turn on when the low-voltage trigger signal is
present. To automatically turn all channels on
via the trigger, BOTH
Power Control Mode
Switches
£
should be set to the trigger
position.
¶
Channel 1 Output Speaker Terminals:
Connect these terminals to the speaker pair that
is fed by the Channel 1 amplifier section.
•
Channel 2 Output Speaker Terminals:
Connect these terminals to the speaker pair that
is fed by the Channel 2 amplifier section.
NOTE: When the amplifier is operated in the
Bridged configuration, connect the speakers as
shown on Page 8.
ª
AC Power Cord Receptacle: Connect the
AC power cord supplied with the unit to this
receptacle, and connect the power cord plug to
an AC outlet.
PA2000 harman/kardon
4