DOWNLOAD Harman Kardon HK 970 (serv.man3) Service Manual ↓ Size: 384.22 KB | Pages: 8 in PDF or view online for FREE

CONTROLS AND FUNCTIONS  

1 Power Indicator: This LED will illuminate in
amber when the unit is in the Standby mode to
signal that the unit is ready to be turned on.
When the unit is in operation, the indicator will
turn blue.

2 System Power Control: Press this button
to turn on the HK 970; press it again to turn the
unit off (to Standby). Note that the Power Indi-
cator

1 next to the switch will turn blue when

the unit is on.

3 Speaker 1/2 Selectors: Press to select
speaker pair 1 or 2, or both, or neither (head-
phone output only).

4 Input Source Selector: Select desired
input source for listening by press-ing the ”Input
Source” button repeatedly (on the left will select
downwards, right upwards) until the display for
the desired source is illuminated.

5 Record Source Selector: Select desired
source for recording to device connected to the
rear panel Tape and CDR Out sockets by pressing
the ”Record Source” button repeatedly until the
display for the desired source is illuminated.

6 Source Direct: Press to bypass tone control
circuitry.

7 Mode Button: Press this button to make
changes to the bass, treble and balance settings.

8 Headphone Jack: Plug in headphones if
desired. With both ”Speaker 1” and ”2” selec-
tors in the Off position, output is supplied only
to headphones.

9 Volume Control: Turn to raise or lower out-
put volume.

) Main Information Display: This display
delivers messages and status indications to help
you operate the receiver.

! Remote Sensor Window: The sensor
behind this window receives infrared signals
from the remote control. Aim the remote at this
area and do not block or cover it unless an
external remote sensor is installed.

2

1

3

6

7

8

9

!

)

4

5

REMOTE CONTROL

Independent Remote Control
The system remote of the HK 970 can control the
amplifier and compatible Tuners, CD Players and
CD Recorders. The remote In jack of units without
an integrated IR receiver must be connected to
the amplifier's remote control output jack so that
the system remote control can operate them.

The Function Table below will show all functions
of the HK 970 and external devices that can be
controlled by the HK 970 remote.

Important Notes:
• To remote control a tuner, CD Recorder or CD

Player, the appropriate input (”TUNER”,
”CDR” or ”CD”) must have been selected
with the source buttons of the remote control
(selecting on the front panel is not sufficient).

• Note that DVD players or tape decks cannot

be controlled by the remote.

• To control a compatible CD Recorder ”CDR”

must be selected as input and the drive to be
controlled (CDP or CDR) must be selected
appropriately with the ”CDP SELECT” or ”CDR
SELECT” buttons.

Operating Conditions
The control unit operates effectively within a
distance of 7 meters and an angle of 30° from
the amplifier. Using the control near fluorescent
lights may shorten this range, as will any dust or
dirt that accumulates on the front of the remote
control or the remote sensor area of the
amplifier. Also avoid blocking the line of sight
between amplifier and remote.

The control unit is powered by two AA batteries,
included with your amplifier. When you replace
weak batteries, replace both at the same time.
When the remote is to be unused for an
extended period, remove the batteries to prevent
damage from corrosion.

Power On

-

-

Power Off

-

-

Select Tuner

-

-

Select Phono

-

-

Select TV

-

-

Select Tape

-

-

Select Aux

-

-

Select CD

-

-

Volume Up

-

-

Select CDR

-

-

-

Current Track +10 

-

Select Mode

-

-

-

Next Folder

-

-

Current Track -10 

-

Volume Down

-

-

-

Previous Folder

-

JH

-

Skip Previous

-

I Play/Pause

-

Play/Pause

-

IK

-

Skip Next

-

HH

-

Fast Reverse

-

A Stop

-

Stop

-

II

-

Fast Forward

-

-

Open/Close

-

-

-

Tuning Up

-

Repeat Play

-

-

Random Play

-

-

-

Tuning Down

-

Track Select

Preset Select

-

-

Auto Tune

-

-

FM Mode Select

-

-

RDS Display Select

Mute Sound

-

-

-

-

Band Select

-

-

Tune Mode Select

OPERATING / TROUBLESHOOTING  

1. Turn Volume control to minimum level and

press the flat Power switch to turn on the
amplifier. The power indicator lights blue and
the protection circuitry checks for short circuit
or other problems for a few seconds before
sound output.

2. Press ”Speaker 1” to hear loudspeakers

connected to the rear Speakers 1 terminals.
Press ”Speaker 2” to hear loudspeakers
connected to the rear Speakers 2 terminals.
Press both to hear both speaker pairs at once.
To listen to headphones only, press to turn off
any active speaker pair.

3. Select desired source for listening by pressing

the front panel Source up or down repeatedly
until the name of the source is shown in the
Main Information Display or by pressing the
desired Source button on the remote control.

4. Begin playing the desired source.

5. Adjust the Volume control to the desired level.

6. Adjust Bass, Treble and Balance controls as

desired (the Source Direct function must be
turned off). To adjust the bass level, press the
Mode Button twice so that the Main Informa-
tion Display shows 

BASS 0dB

. By turning

the Volume Button to the right, the bass level
will increase, turning the Volume Button left
will decrease the bass level.

Once the desired bass level has been set, press
the Mode Button to set the requested level for
the treble. The Main Information Display will
show 

TREBLE 0dB

. By turning the Volume

Button to the right, the treble level will increase,
turning the Volume Button left will decrease the
treble level.

Once the desired treble level has been set, press
the Mode Button to set the requested level for
the balance. The Main Information Display will
show 

BALANCE 0

. By turning the Volume

Button to the right, the balance will move to the
right speaker, turning the Volume Button left will
move the balance to the left speaker.

Press the Mode Button again to return the the
normal volume indication.

7. Press ”Source Direct” until the the Main Infor-

mation Display shows 

DIRECT O N

to

bypass the tone control to ensure purest

sound performance. Press again to turn the
bypass function off and to make the tone and
balance controls function again.

You may record any source to tape or to CD-R or
to both simultaneously. You may also connect a
second tape deck to the CDR inputs and outputs
to record from tape to tape (in either direction).

To select the desired source for recording (this
can be a different source than the one being
listened to), press the Record Source Selector up
or down button on the front panel repeatedly
until the indicator for the name of the source to
be recorded is shown in the Main Information
Display.

NOTE: The record output signal is taken directly
from the program source and is unaffected by
the Volume, Bass, Treble or Balance controls.

Important Notes:
• The functions ”Source Direct” and ”Record

Source” can be selected on the front panel
only, not from the remote control.

• 3-head cassette decks with monitoring func-

tion can be connected to ”Tape” or ”CDR”
connectors too, but their monitoring function
cannot be used.

This unit is designed for trouble-free operation; most problems users encounter are due to operating errors. So if you have a problem, first check this list for a
possible solution. If the problem persists, consult your authorized Harman Kardon service center.

No lights illuminate when power cord is plugged into AC outlet.

• The unit is plugged into a live outlet.

No sound is heard.

• Speaker switches corresponding to the desired speakers are pressed.
• Correct source button has been pressed.

• Volume is turned up.
• Speaker wires are connected properly.
• Hook-up wires to source component are connected properly.

Sound is not heard from the speaker system on one side.

• The speaker wires and connection wires are connected correctly.
• Set the balance setting to 0

When listening to stereo sound, the left and right sounds are reversed. • The speaker wires are connected correctly.

• The wires between components are connected correctly.

Intermittent or continuous buzzing or hissing.

• The unit is away from fluorescent lights, TV, motors and other electrical appliances.

The remote control and front panel controls don't appear to work.

• Disconnect the AC line cord from the wall socket, wait 5 minutes and then re-connect it.

Humming noise when listening to LP

• Ground wire from record player has been connected to ground terminal on amplifier.
• Cable from record player is away from power cords and speaker cables.

Howl or ringing when listening to LP.

• Record player is not to close to speakers.
• Record player is on stable surface.

Low sound level when listening to LP.

• Cable from record player is connected to the Phono jacks.
• The phono cartridge is MM, not MC.

Continuous Average Power Per Channel (FTC)

8 Ohms:

80 Watts@<0.09%THD

20 Hz – 20 kHz, both channels driven

4 Ohms:

120 Watts@<0.3%THD

Dynamic Power (IHF, 1 kHz Tone Burst)

8 Ohms:

115 Watts

4 Ohms:

200 Watts

2 Ohms:

295 Watts

1 Ohms:

380 Watts

High instantaneous current capability (HCC)

±80 Amps

Power Bandwidth @ Half-Rated output, 8

Ω

<10 Hz - 150 kHz

Frequency response @ 1W (+0/-3dB)

5 Hz - 150 kHz

Damping factor (20Hz-20k Hz)

>125

Signal-to-noise Ratio (Reference rated power output, A-WTD)

Tuner/CD

95 dB

Phono (MM):

75 dB

Input sensitivity/Impedance

Tuner/CD

270mV/43k Ohms

Phono (MM):

4.0mV/47k Ohms

Overload:

Tuner/CD

6V

Phono (MM):

90 mV

Tone control range, Bass @ 50 Hz/Treble @ 10 kHz

±6 dB/±6 dB

Power supply:

AC 230V, 50 Hz

Power consumption:

410 W

Dimensions (Width x Height x Depth):

439 x 110 x 395 mm

Weight:

10.35 kg

250 Crossways Park Drive, Woodbury, New York 11797 
www.harmankardon.com
Harman Consumer Group International:
2, Route de Tours, 72500 Château-du-Loir, France
© 2005 Harman Kardon, Incorporated 
Part 5100-971500-000