Read Harman Kardon PA 5800 (serv.man2) Service Manual online
6
Multichannel Power Amplifier
Harman Kardon
PA5800 / SIGNATURE 2.1
speaker may be physically closer to the amplifier than the
other. Do not coil any excess cable, as this may become an
inductor that creates frequency response variations in your
system.
Connect the wire to the speaker, again being certain to
observe proper polarity. Remember to connect the negative
or black wire to the matching terminal on the speaker.
Similarly, the positive or red wire should be connected to the
like terminal on the speaker.
NOTE: While most speaker manufacturers adhere to an
industry standard of using black terminals for negative and
red for positive, some manufacturers may not adhere to this
configuration. To ensure properly phased connections and
optimal performance, consult the identification plate on your
speaker terminals, of the speaker’s manual to verify polarity.
If you do not know the polarity of your speaker, ask your
dealer or installer for advice before proceeding, or consult
the speaker’s manufacturer.
OPERATION
The PA5800/2.1 may be operated in either a manual or
automatic mode. If the unit is being used in a stand-alone
operation you should follow the instructions below for
Manual Operation. When the PA5800/2.1 is connected to
another compatible device such as the Signature 2.0 or
PT2500 tuner, follow the instructions for Automatic
Operation.
Make sure the power switch is in the off position before
plugging in the AC power cord. After all the connections
have been made to the amplifier’s input jacks and speaker
terminals, connect the power cord to an AC outlet. Turn on
your source component and receiver/processor first; start
with a low volume level to protect your speakers.
Manual Operation
The LED indicator should be glowing red if the unit is
The LED indicator should be glowing red if the unit is
plugged in. Press the front panel switch to turn the unit on.
PA5800 - The indicator surrounding the power switch will
turn green after a brief pause.
Signature 2.1 - The indicator will flash green briefly, and
then go out; the front panel will then illuminate to blue.
To turn the unit off, press the power switch again. The LED
indicator will return to red.
Automatic Operation
Before proceeding, make certain the connection between
Before proceeding, make certain the connection between
the Signature 2.0, PT2500, or other trigger source has been
connected properly to the unit following the previous
directions. At this point the trigger source should be off.
After all cables are connected and the PA5800/2.1 is
plugged in, the LED Indicator should be glowing red. Press
the power switch and the indicator will turn amber indicating
the unit is in the standby mode and ready to turn on when it
receives a signal from the triggering device. Finally, turn on
your Signature 2.0, PT2500, or other trigger source to turn
the PA5800/2.1 on.
PA5800 - The indicator surrounding the power switch will
turn green after a brief pause.
Signature 2.1 - The indicator will flash green briefly, and
then go out; the front panel will then illuminate to blue.
At the conclusion of your listening session, there is no need
to turn the PA5800/2.1 off manually. When the Signature
2.0, PT2500, or other trigger source is turned off, the
PA5800/2.1 will return to the standby mode.
Important Note: If you will not be using your audio
system for an extended period of time, such as a vacation,
we recommend turning the PA5800/2.1 off using the power
switch.
IDLE CURRENT ADJUSTMENT PA5800/Signature 2.1
Locate test points:
PA5800 - P75A, P75B, P75C, P75D, P75E
Signature 2.1 - P2, P4, P6, P8, P10
These are 2 pin female molex connectors (5 total, 1 per
channel) on the MAIN AMPLIFIER PCB.
Attach a DC voltmeter (set to a low range) to these points.
This is best accomplished by making up a “test plug” using a
male molex connector that fits into the one in the unit, with
wires attached, for connection to the voltmeter. An
alternative method is to use two “mini-grabbers” to attach to
the two outer pins on each connection. Warning: Do not
accidentally short the two points together with a meter probe
during adjustment.
Adjustment Points:
PA5800 - R70A, R70B, R70C, R70D, R70E
Signature 2.1 - R22, R55, R103, R151, R199
Adjust to 25mv across test points, one channel at a time
until all channels comply.
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