DOWNLOAD Harman Kardon SIGNATURE 1.5 Service Manual ↓ Size: 136.37 KB | Pages: 16 in PDF or view online for FREE

10

The Signature 1.5 may be operated in either a manual or
automatic mode. If the unit is being used in standalone
operation you should follow the instructions below for
Manual Operation. When the 1.5 is connected to another
Signature Series product or to another compatible device,
follow the instructions for Automatic Operation.

Operation of the Signature Series 1.5 is simple. There are
no controls to adjust once the installation is complete.

For conventional, standalone operation, first make all
connections to speakers and input sources as outlined on
the previous pages. Make certain that the front panel

1 is in the fully extended “off” position

and then connect the 

¶ to a wall-

mounted AC outlet with sufficient current capacity. Note
that the 

3 will glow red.

To turn the unit on, press the front panel 

1 until it is flush with the front panel. Once the switch is
turned on, the 1.5 will go into a brief Warm-Up mode, as
indicated by the 

3 flashing green. This is

normal, and it protects your speakers from damage as the
amplifier stabilizes.

When the 1.5 is fully ready for operation the LED
Indicator will go out and the 

2

will glow blue behind the word 

IGNATURE

. At this 

point you will begin to hear audio from the speakers
connected to the 1.5.

You are now ready to enjoy the finest sonic performance
available. No further adjustments are needed, as all
volume controls and/or level adjustments are made at
your preamp controller or surround processor.

To turn the 1.5 off, press the 

1 and

release it so that it protrudes from the front panel. The
unit is in the “off” position when the LED Indicator
returns to a red color.

Note: Always turn on the source components and
processor in your system first, and turn on your amplifier
last. This avoids the possibility of any turn-on pops or
transients from other equipment being amplified and sent
to your speakers, where they may cause damage. Always
start with a low volume level on your controller or
preamp to avoid damage to your speakers.

Before proceeding, make certain that the connection
between the Signature 1.5 and the trigger source has been
properly made as outlined previously. At this point the
triggering unit should be turned off.

With the 

1 in the fully extended “off”

position, plug the 

¶ into a wall-

mounted AC outlet with sufficient current capacity. The

3 will glow red.

Press the 

1 so that it is in the “on”

position and flush with the front panel. At this point the

3 will turn amber, indicating that the 1.5

is in a Standby mode and ready to turn on when it
receives a signal from the Signature 2.0 or other device.

To activate the 1.5, turn on the Signature 2.0 or the other
device that is connected to the 

§.

Once the trigger signal is received the 1.5 will go into a
brief Warm-Up mode, as indicated by the 

3 flashing green. This is normal, and it protects your
speakers from damage as the amplifier stabilizes.

When the 1.5 is fully ready for operation the LED
Indicator will go out and the 

2 will

glow blue behind the word 

IGNATURE

. At this point you

will begin to hear audio from the speakers connected to
the 1.5.

Once your system is turned on, you are ready to enjoy the
finest sonic performance available. There are no controls
to adjust. All volume and level adjustments are made by
your preamp, controller or surround processor.

At the conclusion of your listening session, there is no need
to manually turn off the 1.5. When the 2.0 or other
triggering device is turned off, the 1.5 will return to the
Standby mode and the 

3 will turn amber.

Important Note: If you will not be using your audio
system for an extended period of time, such as during a
vacation, it is always a good idea to turn the unit off using
the Power Switch. This will prevent the automatic turn-
on circuits from accidentally turning the system on during
your absence.

11

If your installation has followed the procedures in this
manual, you should enjoy many years of trouble-free
operation and high-quality listening enjoyment. The 
1.5 does not contain any user-serviceable parts. If you
suspect a problem that may require service assistance,
contact your dealer, installer or an authorized Harman
Kardon service depot.

You may also contact Harman Kardon via the World Wide
Web at www.harmankardon.com

It is important that any repairs be carried out only by 
an authorized Harman Kardon service agent to ensure
proper service and preserve the protection of your Limited
Warranty. It is a good idea to keep your sales 
slip or receipt in a safe place (along with this manual) so
that it will be available to verify the purchase date for
warranty claims.

Under some conditions, such as a shorted speaker wire,
DC voltage on an input connection or thermal overload,
the amplifier will place itself in a Protect mode to prevent
damage to the amplifier. When this happens, the LED
Power Indicator will flash and alternate between red 
and amber.

When this occurs, IMMEDIATELY turn off the unit using
the Power Switch and correct the problem. Then turn the
unit back on. If the unit continues to go into a Protect
mode, contact your dealer or installer for assistance.

The items listed below are a brief guide to minor problems that may arise with audio equipment such as the 1.5. Before
taking a unit in for service, you should check to see if any of these hints solve the problem. If these solutions do not rectify
the problem or if the problem recurs, contact your dealer or an authorized Harman Kardon service depot for assistance.

Amplifier will not turn on.

Amplifier turns on, but no audio from
one or more channels.

Audio plays, then cuts off.

• Power Switch turned off.

(No Power Light LED)

• Remote trigger cable not

properly connected.

• Inputs not connected to

proper jack.

• Speakers not connected

properly.

• Improper settings or output

levels from processor or
controller.

• Amplifier shorted (LED

flashes amber and red).

• Turn on Power Switch.

• Verify connection of trigger cable

at both ends.

• Check input connections.

• Check speaker connections.

• Check the settings on your preamp,

processor or controller.

• Check speaker connections for 

short circuit.

12

Power Output:

High-Current Capability:

Frequency Response:

Power Bandwidth:

THD/IMD:

Crosstalk

Negative Feedback:

Input Impedance:

Input Sensitivity:

Remote Trigger Voltage:

Remote Trigger Impedance:

Dimensions (H x W x D):

Weight:

Power Requirements:

2 x 200 watts @ 8 ohms
20Hz – 20kHz, <0.03% THD, Both Channels Driven
2 x 325 watts @ 4 ohms
20Hz – 20kHz, <0.03% THD, Both Channels Driven
1 x 650 watts @ 8 ohms
20Hz – 20kHz, <0.03% THD, Bridged Mono Mode

± 130 Amps per channel

<1Hz – 170kHz ± 3dB

<1Hz – >100kHz

<0.03% at rated output

< –87dBr between channels at maximum output

<25dB

33K ohms

1 volt for rated output

6 – 12 volts DC (tip of plug must be “positive” (+))

20K ohms

191 x 438 x 387 mm
71⁄2 x 171⁄4 x 151⁄4 inches

21 kg/47 lbs

230VAC,  50Hz
600 watts, maximum

All features and specifications are subject to change without notice.

Staple or clip your original invoice here. 

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