Harman Kardon HK 990 (serv.man2) Service Manual ▷ View online
Connections
CONNECTIONS
Right Loudspeaker output, System 2.
Right Loudspeaker output, System 1.
RS-232 connector for possible future PC
update. Update Switch.
Input jacks for one or two subwoofer signals
from external surround processor.
Output jacks for two subwoofers.
Digital coaxial output jack for digital record-
ing. Also permits digital recording of analog
sources.
sources.
Preamplifier output jacks.
Analog output jacks for tape recording.
Analog output jacks for CD Recorder analog
recording.
AUX input jacks, suitable for analog signals
from video games, video recorders etc.
TV input jacks for analog sound input from
your TV.
TAPE input jacks for analog tape replay.
CDR input jacks, for CD Recorder analog
replay.
Balanced analog inputs (XLR), for use with all
signal sources that output balanced signals.
Available via the CD Input function only, as
an alternative to the unbalanced RCA jacks
(Input G). Pin configuration for the XLR
Inputs: Pin 1 is Ground, Pin 2 is Plus/Hot, Pin
3 is Minus/Cold.
Available via the CD Input function only, as
an alternative to the unbalanced RCA jacks
(Input G). Pin configuration for the XLR
Inputs: Pin 1 is Ground, Pin 2 is Plus/Hot, Pin
3 is Minus/Cold.
Left Loudspeaker output, System 2.
Left Loudspeaker output, System 1.
Power lead AC input.
TUNER analog Input jacks.
PROCESSOR Analog Inputs. These Inputs
go directly to the power amplifier section
of the HK 990, bypassing the Volume and
Tone Control. Here you can connect the
Front Channel Pre Out L+R signals from an
external surround processor, to benefit from
the superior power of the HK 990 and control
volume from the processor. NOTE: Only use
the Processor Input with a device that has its
own volume control!
of the HK 990, bypassing the Volume and
Tone Control. Here you can connect the
Front Channel Pre Out L+R signals from an
external surround processor, to benefit from
the superior power of the HK 990 and control
volume from the processor. NOTE: Only use
the Processor Input with a device that has its
own volume control!
G CD analog Input jacks. You can select either
this Input or the Balanced Input as analog
Input in the CD Input Setup Mode.
Input in the CD Input Setup Mode.
Phono Input for record player with Moving
Magnet (high output and high impedance) or
High-Output Moving Coil cartridge.
High-Output Moving Coil cartridge.
Phono Input for record player with Moving
Coil (low output and low impedance) car-
tridge.
tridge.
If your record player has a separate Ground
wire, attach it here to avoid hum noise.
Connect the trigger Input (if available) on
one or two subwoofers to these trigger ON/
OFF output jacks. When you switch ON the
HK 990, it sends a trigger signal, which
switches ON the subwoofer. When switching
OFF the HK 990, the subwoofer also switches
OFF.
OFF output jacks. When you switch ON the
HK 990, it sends a trigger signal, which
switches ON the subwoofer. When switching
OFF the HK 990, the subwoofer also switches
OFF.
HRS (High-Resolution Synchronization) Input.
Use the included HRS-cable to connect the
HD 990 CD player (or other similarly equipped
player) for optimum sound quality.
HD 990 CD player (or other similarly equipped
player) for optimum sound quality.
Optical Digital Inputs (TOS-Link). Connect
any digital device with Optical Digital Output
to one of these Inputs. Push the Optical Jack
through the hinged door that covers the Input
until it clicks into place.
to one of these Inputs. Push the Optical Jack
through the hinged door that covers the Input
until it clicks into place.
Coaxial Digital Inputs. Connect any digital
device with Coaxial Digital Output to one of
these Inputs. Usually, Coaxial Digital transmis-
sion is preferred to Optical, given a choice.
these Inputs. Usually, Coaxial Digital transmis-
sion is preferred to Optical, given a choice.
Remote IN. To control your HK 990 with an
external infrared remote sensor, connect the
wire from the remote sensor here.
wire from the remote sensor here.
Remote OUT. Connect other Harman Kardon
devices (you may also experiment with other
brands) that you wish to control with the
HK 990 Remote Control to this Output.
brands) that you wish to control with the
HK 990 Remote Control to this Output.
3
REMOTE CONTROL
Remote Control
Band: Switches between frequency bands on a
Tuner.
Tuner.
FM Mode: Switches between Stereo and Mono
on a Tuner.
on a Tuner.
Auto: Switches between Automatic and Manual
tuning on a Tuner.
tuning on a Tuner.
Mem: For memorizing a radio station in the Pre-
set Memory of a Tuner.
set Memory of a Tuner.
Clear: Clears the memory of a CD/CDR or clears
a preset from Tuner station list.
a preset from Tuner station list.
Check: Press this button to check the order of
tracks programmed into a CD player’s memory.
tracks programmed into a CD player’s memory.
Prog: Press this button to begin the process of
programming a CD player to play the tracks of a
disc in a specific order.
programming a CD player to play the tracks of a
disc in a specific order.
Speaker Setup: Press to enter the HK 990
Speaker Setup functions. See below for explana-
tion of the Speaker Setup process.
Speaker Setup functions. See below for explana-
tion of the Speaker Setup process.
Input Setup: Press to enter the HK 990 Input
Setup functions. See below for explanation of the
Input Setup process.
Setup functions. See below for explanation of the
Input Setup process.
Arrow Buttons (Fe
Eee): This round but-
ton is used to navigate within the menus of the
HK 990.
HK 990.
EQ Preset: Press to enter the HK 990 Equalizer
Preset functions. See below for explanation of
the EQ Presets.
Preset functions. See below for explanation of
the EQ Presets.
Level Settings: Press to enter the HK 990 Level
Setting functions. See below for explanation of
the Level Setting process.
Setting functions. See below for explanation of
the Level Setting process.
Enter: Press to confirm a selection within a
HK 990 setup procedure or to switch between
selections. See under each Setup process for fur-
ther explanations.
HK 990 setup procedure or to switch between
selections. See under each Setup process for fur-
ther explanations.
Scroll ZdI: When listening to a Tuner, press + to
tune to higher frequency stations and – to tune
to lower frequency stations. Also see the Owners
Manual for your harman/kardon tuner.
tune to higher frequency stations and – to tune
to lower frequency stations. Also see the Owners
Manual for your harman/kardon tuner.
Volume ZdI: Press to adjust the HK 990 vol-
ume up or down.
ume up or down.
Select: When listening to a tuner, press this but-
ton to alternate between Auto Tune, Manual Tune
or Preset Tune.
ton to alternate between Auto Tune, Manual Tune
or Preset Tune.
Pause: When playing a CD, press this button
to momentarily pause the disc. Press again to
resume play.
to momentarily pause the disc. Press again to
resume play.
Mute: Press this button to momentarily silence
the HK 990. “Muted” flashes in the front panel
display. Press again to re-activate sound output.
the HK 990. “Muted” flashes in the front panel
display. Press again to re-activate sound output.
EE and FF (Search Buttons): Press one of
these buttons to search fast forward or back-
ward on a CD or Tape. You can hear intermittent
sounds from the CD while searching. Normal
playback resumes when you release the button.
these buttons to search fast forward or back-
ward on a CD or Tape. You can hear intermittent
sounds from the CD while searching. Normal
playback resumes when you release the button.
.EE and FF. (Skip Buttons): Press one of
these buttons to move to the next track or to
the previous track on a CD or Tape. Repeatedly
pressing one of the buttons skips more tracks.
On a CD, pressing Skip Forward while playing the
last track skips to track 1, and pressing Skip Back
while playing track 1 skips to the last track.
these buttons to move to the next track or to
the previous track on a CD or Tape. Repeatedly
pressing one of the buttons skips more tracks.
On a CD, pressing Skip Forward while playing the
last track skips to track 1, and pressing Skip Back
while playing track 1 skips to the last track.
Stop: Press this button to stop play of a CD or
Tape.
Tape.
Play: Press this button to start playback of a
CD or Tape. If the CD drawer is open, the drawer
closes and play begins. Pressing the Play Button
again pauses play momentarily, same as the
Pause Button.
CD or Tape. If the CD drawer is open, the drawer
closes and play begins. Pressing the Play Button
again pauses play momentarily, same as the
Pause Button.
Z10 and I10: When playing a CD, press the
+10 Button to skip 10 tracks forward and the
-10 Button to skip 10 tracks backward from the
track you are playing. More presses again skips
10 more tracks. If there are less than 10 tracks to
the end or start of the CD, the last or first track
is played.
+10 Button to skip 10 tracks forward and the
-10 Button to skip 10 tracks backward from the
track you are playing. More presses again skips
10 more tracks. If there are less than 10 tracks to
the end or start of the CD, the last or first track
is played.
Folder Z and Folder Ie: When playing a CD
with MP3 files, these buttons move to the next or
the previous folder with MP3 material.
with MP3 files, these buttons move to the next or
the previous folder with MP3 material.
Repeat: When playing a CD, pressing this but-
ton once repeats the current track, shown as
“Rep 1” in the CD player’s display. Pressing once
more repeats the entire CD, shown as “Rep All”
in the CD player’s display. Third press exits repeat
play.
ton once repeats the current track, shown as
“Rep 1” in the CD player’s display. Pressing once
more repeats the entire CD, shown as “Rep All”
in the CD player’s display. Third press exits repeat
play.
Repeat A-B: When playing a CD, press once to
establish a starting point (shown as “Rep A” in
the CD player’s display) and a second time to
establish an end point (shown as Rep A-B in the
CD player’s display). The music between these
two points is repeated as a loop until you press
the button a third time, returning to normal play.
establish a starting point (shown as “Rep A” in
the CD player’s display) and a second time to
establish an end point (shown as Rep A-B in the
CD player’s display). The music between these
two points is repeated as a loop until you press
the button a third time, returning to normal play.
Open/Close: Opens the CD drawer when it is
closed and closes it when it is open. The drawer
may also be closed by pressing Play.
closed and closes it when it is open. The drawer
may also be closed by pressing Play.
Random: When playing a CD, press this button
to play all tracks in random order.
to play all tracks in random order.
4
AMP Adjustment
Iding Adjustment
Precaution for handling measuring
instrument
The ground side of the measuring
instrument to be connected to the
speaker terminal of this unit must
be kept in floating condition
because this unit is equiped with
the floating balanced power
amplifier.
Precaution for handling measuring
instrument
The ground side of the measuring
instrument to be connected to the
speaker terminal of this unit must
be kept in floating condition
because this unit is equiped with
the floating balanced power
amplifier.
Condition
* Start adjustment 5 minutes or
more after the power is turned on.
* Non loaded condition.
* Start adjustment 5 minutes or
more after the power is turned on.
* Non loaded condition.
Idling Adjustment
Adjust R53 so that the DC voltage
of TP1 becomes +38mV .
Adjust R53 so that the DC voltage
of TP1 becomes +38mV .
R53
TP1
5
Speaker Board
In Board
Seaker Board
Head Phone
Led Board
Display Board
Fuse Board
Preamplifer Board
AMP
left
power
Thermistor
Thermistor
Transformer
Power Cord in
Sp1+ Sp1- Sp2- Sp2+
1 2 3 4
7P J1
JP1
JP2
JP10
JP8
JP4
JP7
JP6
JP9
JP3
JP5
AMP
right
power
7P J1
JP1
JP2
JP10
JP8
JP4
JP7
JP6
JP9
JP3
JP5
Sp1+ Sp1- Sp2- Sp2+
1 2 3 4
3P
5P CN12
4P
CN3
5P
CN12
4P
CN13
6P
CN2
4P
CN4
7P
CN1
5P
CN3
2P
CN7
2P
CN8
2P
CN9
2P
CN10
5P
CN11
7P
CN6
7P
J2
7P
J3
3P
5P
J11
4P
J14
5P
J13
6P
J12
6
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