Harman Kardon HK3270 User manual

FMAMAUX PRESETSCAN FMMODEPRESETTUNING
Mute
RLMaxMinMaxMin
Bass Treble Balance
Volume
Harman Kardon
HK3270
StereoReceiver
Owner’s Manual
HK3270 "U" om (B) 2/5/99 10:40 AM Page 2

Owner’s Manual
HK3270 Stereo Receiver
Table of Contents
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–3
Front Panel Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–6
Rear Panel Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–8
Remote Control Functions . . . . . . . . . . . . . . . . . . . . . . . . . . 9–10
Installation and Connections. . . . . . . . . . . . . . . . . . . . . . . 11–13
Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14–18
Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Source Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . 14–15
Tuner Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 15–16
Tape Recording . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Memory Backup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Processor Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
©1998 Harman Kardon, Incorporated
250 Crossways Park Drive
Woodbury, NY 11797
HK3270 "U" om (B) 2/5/99 10:40 AM Page 3

Congratulations! With the purchase
of the Harman Kardon HK3270 you are
about to begin many years of listening
enjoyment. The HK3270 has been custom
designed to provide all the excitement and
power of rock, jazz and popular music,
and every nuance of classical selections.
While sophisticated systems are hard at
work within the HK3270 to make all of
this happen, hookup and operation are
simple. Color-keyed connections and a
comprehensive remote control make the
HK3270 easy to use.
To obtain maximum enjoyment from
your new receiver, we urge you to take a
few minutes to read through this manual.
This will ensure that connections to
speakers, source playback units and other
external devices are made properly. In
addition, a few minutes spent learning
the functions of the various controls will
enable you to take advantage of all the
power the HK3270 is able to deliver.
Introduction
4
If you have any questions about this
product, its installation or operation,
please contact your dealer. They are your
best local source of information.
Description and Features
The HK3270 is a full-featured Stereo
receiver, with five inputs and an FM
stereo/FM/AM tuner with capabilities that
provide for the utmost flexibility. A high-
quality phono input is available so that
you may continue to enjoy your existing
record collection as well as the latest
CD recordings.
The HK3270’s powerful amplifier uses
traditional Harman Kardon High-Current
Design philosophies to meet the wide
dynamic range of any program selection.
Harman Kardon invented the high-fidelity
receiver more than forty-five years ago.
With state-of-the-art features and time-
honored circuit designs, the HK3270 is
one of the finest receivers ever offered by
Harman Kardon.
■Harman Kardon Designed High-
Current, Ultrawide Bandwidth
Amplifier
■Preamp and Subwoofer Outputs for
Use with External Power Amplifiers
■Phono Input Section
■Tuner with Data Program
Information Displays
HK3270 "U" om (B) 2/5/99 10:40 AM Page 4

Safety Information
Important Safety Information
Verify Line Voltage Before Use
Your HK3270 has been designed for use
with 120-volt AC current. Connection to a
line voltage other than that for which it
is intended can create a safety and fire
hazard, and may damage the unit.
If you have any questions about the volt-
age requirements for your specific model,
or about the line voltage in your area,
contact your selling dealer before plug-
ging the unit into a wall outlet.
Do Not Use Extension Cords
To avoid safety hazards, use only the
power cord attached to your unit. We do
not recommend that extension cords be
used with this product. As with all electri-
cal devices, do not run power cords under
rugs or carpets or place heavy objects on
them. Damaged power cords should be
replaced immediately with cords meeting
factory specifications.
Handle the AC Power Cord Gently
When disconnecting the power cord from
an AC outlet, always pull the plug, never
pull the cord. If you do not intend to use
the unit for any considerable length of
time, disconnect the plug from the AC
outlet.
Do Not Open the Cabinet
There are no user-serviceable compo-
nents inside this product. Opening the
cabinet may present a shock hazard, and
any modification to the product will void
your guarantee. If water or any metal
object such as a paper clip, wire or
staple accidentally falls inside the unit,
disconnect it from the AC power source
immediately, and consult an authorized
service station.
CATV or Antenna Grounding
If an outside antenna or cable system is
connected to this product, be certain that
it is grounded so as to provide some pro-
tection against voltage surges and static
charges. Section 810 of the National
Electrical Code, ANSI/NFPA No. 70-1984,
provides information with respect to
proper grounding of the mast and sup-
porting structure, grounding of the lead-
in wire to an antenna discharge unit,
size of grounding conductors, location of
antenna discharge unit, connection to
grounding electrodes and requirements
of the grounding electrode.
NOTE TO CATV SYSTEM INSTALLER:
This reminder is provided to call the
CATV (Cable TV) system installer’s atten-
tion to article 820-40 of the NEC that
provides guidelines for proper grounding
and, in particular, specifies that the cable
ground shall be connected to the ground-
ing system of the building, as close to the
point of cable entry as possible.
Installation Location
■To assure proper operation, and to
avoid the potential for safety hazards,
place the unit on a firm and level sur-
face. When placing the unit on a shelf,
be certain that the shelf and any
mounting hardware can support the
weight of the product.
■Make certain that proper space is pro-
vided both above and below the unit
for ventilation. If this product will be
installed in a cabinet or other enclosed
area, make certain that there is suffi-
cient air movement within the cabinet.
Under some circumstances a fan may
be required.
■Do not place the unit directly on a
carpeted surface.
■Avoid installation in extremely hot or
cold locations, or an area that is
exposed to direct sunlight or heating
equipment.
■Avoid moist or humid locations.
■Do not obstruct the ventilation slots on
the top of the unit, or place objects
directly over them.
5
HK3270 120 volt Rev (B)
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE
COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE PERSONNEL.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE
BLADE OF PLUG TO WIDE SLOT, FULLY INSERT.
ATTENTION: POUR EVITER LES CHOCS ELECTRIQUES, INRODUIRE LA
LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE
LA PRISE ET POUSSER JUSQU'AU FOND.
The lightning flash with arrowhead
symbol, within an equilateral triangle, is
intended to alert the user to the
presence of uninsulated “dangerous voltage”
within the product’s enclosure that may be of
sufficient magnitude to constitute a risk of
electric shock to persons.
The exclamation point within an
equilateral triangle is intended to
alert the user to the presence of
important operating and maintenance
(servicing) instructions in the literature
accompanying the appliance.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
HK3270 "U" om (B) 2/5/99 10:40 AM Page 5

Safety Information
Cleaning
When the unit gets dirty, wipe it with a
clean, soft, dry cloth. If necessary, wipe it
with a soft cloth dampened with mild
soapy water, then a fresh cloth with clean
water. Wipe dry immediately with a dry
cloth. NEVER use benzene, aerosol
cleaners, thinner, alcohol or any other
volatile cleaning agent. Do not use
abrasive cleaners, as they may damage
the finish of metal parts. Avoid spraying
insecticide near the unit.
Moving the Unit
Before moving the unit, be certain to dis-
connect any interconnection cords with
other components, and make certain
that you disconnect the unit from the
AC outlet.
Important Information For the User
NOTE: This equipment has been tested
and found to comply with the limits for
a Class-B digital device, pursuant to Part
15 of the FCC Rules. The limits are
designed to provide reasonable protection
against harmful interference in a
residential installation. This equipment
generates, uses and can radiate radio-
frequency energy and, if not installed and
used in accordance with the instructions,
may cause harmful interference to radio
communication. However, there is no
guarantee that harmful interference will
not occur in a particular installation.
If this equipment does cause harmful
interference to radio or television recep-
tion, which can be determined by turning
the equipment off and on, the user
is encouraged to try to correct the inter-
ference by one or more of the following
measures:
■Reorient or relocate the receiving
antenna.
■Increase the separation between the
equipment and receiver.
■Connect the equipment into an outlet
on a circuit different from that to
which the receiver is connected.
■Consult the dealer or an experienced
radio/TV technician for help.
ThisdevicecomplieswithPart15ofthe
FCCRules.Operationissubjecttothe
followingtwoconditions:(1)thisdevice
maynotcauseharmfulinterference,and
(2)thisdevicemustacceptinterference
received,includinginterferencethatmay
causeundesiredoperation.
NOTE: Changes or modifications may
cause this unit to fail to comply with
Part 15 of the FCC Rules and may void
the user’s authority to operate the
equipment.
Unpacking
The carton and shipping materials used
to protect your new receiver during ship-
ment were specially designed to cushion
it from shock and vibration. We suggest
that you save the carton and packing
materials for use in shipping if you move,
or should the unit ever need repair.
To minimize the size of the carton in
storage, you may wish to flatten it. This
is done by carefully slitting the tape
seams on the bottom and collapsing the
carton down to a more two-dimensional
appearance. Other cardboard inserts may
be stored in the same manner. Packing
materials that cannot be collapsed
should be saved along with the carton in
a plastic bag.
If you do not wish to save the packaging
materials, please note that the carton
and other sections of the shipping protec-
tion are recyclable. Please respect the
environment and discard those materials
at a local recycling center.
Typographic Conventions
In order to help you use this manual
with the remote control, front panel
controls and rear panel connections,
certain conventions have been used.
Example – (bold type) indicates a
specific remote control or front panel
button, or rear panel connection
Example – (OCR type) indicates a
message that is visible on the front panel
information display
EXAMPLE – (bold type) indicates a lit
indicator in the front panel information
display
1– (number in a square) indicates a
specific front panel control
¡– (number in a circle) indicates
a rear panel connection
å– (letter in a circle) indicates a
button on the main portion of the
remote control
A– (letter in a square) indicates a
button under the sliding panel on the
lower portion of the remote control
6
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Front Panel Controls
7
1Main Power Switch
2System Power Control
3Power Indicator
4Headphone Jack
5Speaker 1 Button
6Speaker 2 Button
7Bass Control
8Treble Control
9Balance Control
)Phono Button
!Tape Monitor
@Tape 2 Button
#CD Button
$Aux Button
%AM Button
^FM Button
&Tuning Button
*Preset Scan
(Preset Stations Selector
ÓFM Mode
ÔMute
Volume Control
ÒVolume/Mute Indicator
ÚInformation Display
ÛRemote Sensor Window
HK 3270
PHONO CD FMAMAUX PRESETSCAN FMMODEPRESETTUNING
Phones
Power
Mute
RLMaxMinMaxMin
Bass Treble Balance
Volume
T•MON T•2
Speakers 21
TUNED STEREO MONO MEMO
MIN
MHz
PRESET
MHz
SLEEP
) # $ % ^
345 6 7 8 9
1
2
&( Ô

Ó
ÚÛ
!@ *
Ò
HK3270 "U" om (B) 2/5/99 10:40 AM Page 7

Front Panel Controls
8
1Main Power Switch: Press this
button to apply power to the HK3270.
When the switch is pressed in the
unit is placed in a Standby mode, as
indicated by the amber LED 3sur-
rounding the System Power Control
2. This button MUST be pressed in
to operate the unit. To turn the unit off
and prevent the use of the remote
control, this switch should be
pressed until it pops out from the
front panel so that the word “OFF”
may be read at the top of the switch.
NOTE: In normal operation this
switch is left in the “ON” position.
2System Power Control: When
the Main Power Switch 1is “ON,”
press this button to turn on the
HK3270; press it again to turn
the unit off. Note that the Power
Indicator surrounding the switch 3
will turn green when the unit is on.
3Power 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 green. A red indi-
cator means that the unit is in the
Protect mode, and should be turned
off and then checked for a possible
speaker wire short circuit.
4Headphone Jack: This jack may
be used to listen to the HK3270’s
output through a pair of headphones.
Be certain that the headphones have
a standard 1⁄4" stereo phone plug.
5Speaker 1 Button: Press this
button to activate the speaker
connected to the Speaker 1 output
terminals fl.
6Speaker 1 Button: Press this
button to activate the speaker
connected to the Speaker 2 output
terminals ‡.
7Bass Control: Turn this control to
modify the low-frequency output of
the left/right channels by as much as
±10dB. Set this control to a suitable
position for your taste and room
acoustics.
8Treble Control: Turn this control
to modify the high-frequency output
of the left/right channels by as much
as ±10dB. Set this control to a
suitable position for your taste and
room acoustics.
9Balance Control: Turn this
control to change the relative volume
for the front left/right channels.
)Phono Button: Press this button
to select the output of a turntable
which is connected to the Phono
inputs§.
!Tape Monitor: Press this
button to listen to the output of a
tape recorder connected to the
Tape Monitor inputsª. A red LED
indicator will illuminate above the
button to indicate that the input
source is being monitored when the
HK3270 is connected to a three-
head tape deck or another unit with
off-head playback.
@Tape 2: Press this button to listen
to the output of a tape recorder or
other device connected to the Tape 2
inputs ⁄.
#CD Button: Press this button to
listen to the output of a CD player
connected to the CD inputs ¶.
$AUX Button: Press this button
to listen to the output of device
connected to the AUX inputs •.
%AM Button: Press this button to
listen to radio stations in the AM
(MW) frequency band.
^FM Button: Press this button
to listen to radio stations in the FM
frequency band.
&Tuning Button: Press the left
side of the button to tune lower
frequency stations and the right side
of the button to tune higher frequency
stations. When a station with a strong
signal is tuned, the TUNED indicator
will illuminate in the Information
Display Ú. A brief (1/2 second)
press of the button will manually
tune to the next frequency incre-
ment, while pressing and holding
the button for a longer period will
automatically tune to the next station
with a signal strong enough for
acceptable reception.
*Preset Scan: Press this button
to automatically scan through the
stations that have been programmed
in the HK3270’s memory. The tuner
will play five seconds of each station
before moving to the next preset
station. To stop the scan when the
desired station is heard, press the
button again. (See page 15 for more
information on the tuner memory
system.)
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Front Panel Controls
(Preset Stations Selector: Press
this button to select stations that
have been entered into the preset
memory. (See page15 for more
information on tuner programming.)
ÓFM Mode: Press this button to
select the stereo or mono mode for
FM tuning. In the STEREO mode a
Stereo indicator will illuminate in the
Information Display Ú, and stereo
reception will be provided when sta-
tions are transmitting stereo signals.
In the MONO mode the left and right
signals from stereo broadcasts will
be mixed together and reproduced
through all channels. Select MONO
for better reception of weak signals.
ÔMute: Press this button to
momentarily silence the speaker
output of the HK3270.
Volume Control: Turn the knob
clockwise to increase volume,
counterclockwise to decrease the
volume.
ÒVolume/Mute Indicator: This
indicator will glow green when the
HK3270 is turned on. Its position
will enable you to judge the relative
volume of the unit even when the
speakers are muted or turned off.
When the indicator is pointing
towards the left, at an “8 o’clock”
position, the volume is low; when
it is pointing to the right, as in a
“3 o’clock” position, the volume is
loud. When the unit has been muted,
pressing the Mute button Ô¬the
indicator will flash.
ÚInformation Display: This
display delivers messages and
status indications to help you
operate the receiver.
ÛRemote Sensor Window: The
sensor behind this window receives
infrared signals from the remote con-
trol. Aim the remote at this area and
do not block or cover it unless an
external remote sensor is installed.
9
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Rear Panel Connections
10
AC 120V 60HZ
400W
(120V, 60Hz)
IN
FM
75 Ω
AM
LOOP
IN IN IN PLAY REC. OUT PLAY REC. OUT MONO
RIGHT LEFT
SUB OUTPRE OUTMAIN INTAPE MON. TAPE 2AUXCDPHONO
OUT
L
R
GND
SPEAKER 1 (8 Ohms)
SPEAKER 2 (8 Ohms)

£
¢
∞
¡
™
‹›fi
‚⁄ª•§¶ fl‡ ·°
¡AM Antenna
™FM Antenna
£Phono Ground
¢Remote IR In
∞Remote IR Out
§Phono Inputs
¶CD Inputs
•Aux Inputs
ªTape Monitor Play/In
‚Tape Monitor Record/Out
⁄Tape 2 Play/In
Tape 2 Record/Out
‹Main In
›Preamp Out
fiSubwoofer Out
flSpeaker 1 Terminals
‡Speaker 2 Terminals
°Accessory Outlets
·Power Cable
¡AM Antenna: Connect the AM
loop antenna supplied with the
receiver to these terminals. If an
external AM antenna is used, make
connections to the AM and GND
terminals in accordance with the
instructions supplied with the
antenna.
™FM Antenna: Connect an indoor
or external FM antenna to this
terminal.
£Phono Ground: Connect the
ground wire from a turntable to this
terminal to reduce system hum.
¢Remote IR In: If the HK3270’s
front panel IR sensor is blocked due
to cabinet doors or other obstructions,
an external IR sensor may be used.
Connect the output of the sensor to
this jack.
∞Remote IR Out: This connection
permits the IR sensor in the receiver
to serve other remote controlled
devices. Connect this jack to the
“IR IN” jack on Harman Kardon or
other compatible equipment.
§Phono Inputs: Connect the out-
puts of your turntable or tone arm to
these jacks. Note that only Moving
Magnet (MM) type cartridges may
be used.
¶CD Inputs: Connect these jacks
to the output of a compact disc
player or CD changer.
•Aux Inputs: Connect these jacks
to the line-level output of any audio
device such as a TV, cable converter
or portable audio player.
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Rear Panel Connections
11
ªTape Monitor Play/In: Connect
these jacks to the Play/Out jacks of
an audio recorder.
‚Tape Monitor Record/Out:
Connect these jacks to the Rec/In
jacks of an audio recorder.
NOTE: When these jacks are con-
nected to a three-head recorder or
another device with off-head play-
back, it will be possible to monitor
the source being recorded.
⁄Tape 2 Play/In: Connect these
jacks to the PLAY/OUT jacks of a
second audio recorder.
Tape 2 Record/Out: Connect
these jacks to the Rec/In jacks of a
second audio recorder.
‹Main In: These jacks are the input
to the HK3270’s power amplifier. Unless
an external power amplifier is used, the
jumper pins should remain connected
to the Preamp Out jacks ›.
›Preamp Out: These jacks
proved an output for the left and
right channels to an optional exter-
nal amplifier. In normal operation,
unless an external power amplifier
is used, the jumper pins should
remain connected to the Main In
jacks ‹.
fiSubwoofer Out: Connect these
jacks to the line level input of a pow-
ered subwoofer. If an external sub-
woofer amplifier is used, connect this
jack to the subwoofer amplifier input.
flSpeaker 1Terminals: Connect
these terminals to the appropriate
terminals on your speakers.
‡Speaker 2Terminals: Connect
these terminals to the appropriate
terminals on your speakers.
°Accessory Outlets: These
outlets may be used to power low-
current draw devices such as CD
players or cassette decks. Note that
the power to these outlets will remain
on as long as the Main Power
Switch 1is pressed in. These outlets
will continue to be powered even
when the unit is in the Standby mode.
To remove power to these outlets, the
Main Power Switch 1must be
placed in the OFF position.
NOTE: The power consumption
of the devices plugged into these
outlets should not exceed 100 watts.
·Power Cable: Connect the AC
plug to a non-switched AC wall
output.
HK3270 "U" om (B) 2/5/99 10:40 AM Page 11

Remote Control Functions
12
ON OFF
MASTERVOL.
123
4
79
8
0
56
TAPE 2
TUNING
DWN-TUNING-UP
MAIN POWER
P. SCAN MUTE
SLEEP
DIMMER
DIRECT MEMORY
PRESET
AUTO CLEAR
HK 3270 RC
PHONO TAPE1
AUX AM FMCD
DWN-PRESET-UP
/
DISC SKIP FM MODE
S
T
å
©
˙
O
P
Q
R
∆
∫
ç
∂
≠
ƒ
¬
µ
åMain Power On
∫Main Power Off
çSource Selectors
∂Preset Up/Down
≠Transport Controls
ƒDisc Skip
©Sleep Button
˙Dimmer
Tuning
∆Master Volume
P•Scan
¬Mute
µFM Mode
Tuning Up/Down
ODirect
PNumeric Keys
QAuto Preset
RSecondary Control Cover
SClear Button
TMemory
HK3270 "U" om (B) 2/5/99 10:40 AM Page 12

Remote Control Functions
åMain Power On: When the
HK3270 is in the Standby mode, as
indicated by the Power Indicator 3
glowing amber, press this button to
turn the HK3270 on.
∫Main Power Off: When the
HK3270 is turned on, press this
button to place it in the Standby
mode. Note that in this condition,
the unit is still connect to AC Power.
çSource Selectors: Press these
buttons to select an input source for
the HK3270.
∂Preset Up/Down: When the
tuner is in use, these buttons scroll
through the stations that have been
programmed into the HK3270’s
memory. These buttons also control
the track Skip Up and Down on com-
patible Harman Kardon compact
disc players/ changers.
≠Transport Controls: These but-
tons are used to control Play, Play
Forward, Play Reverse, Stop, Pause
and Record functions on compatible
Harman Kardon compact disc players/
changers and cassette tape decks.
ƒDisc Skip: These buttons do not
have any functions when controlling
the HK3270, but they operate the
Disc Skip functions of compatible
Harman Kardon compact disc
changers.
©Sleep Button: Press this button
to place the unit in the Sleep mode.
After the time shown in the display,
the HK3270 will automatically go into
the Standby mode. Each press of
the button changes the time until
turn-off in the following order:
90
min 80 min 70 min 60 min 50 min
40
min 30
min 20 min 10 min OFF
˙Dimmer: Press this button once
to reduce the brightness of the front
panel display to half the normal
intensity. Press it again to turn the
front panel display completely off.
When the display is completely off,
press the button to return to normal
brightness.
Tuning: Press these buttons to
tune up or down through a selected
frequency band.
∆MasterVolume: Press these
buttons to raise or lower the
HK3270’s volume.
P•Scan: Press this button to
automatically scan through the list of
stations that are programmed into
the HK3270’s tuner memory. When
the button is pressed, each preset
station will play for five seconds
before the next station is selected.
Press the button again when the
desired station is heard to stop the
preset scan.
¬Mute: Press this button to
momentarily silence the HK3270.
µFM Mode: Press this button when
the tuner is in use in the FM band to
switch to monaural reception if the
station is weak and noisy. When the
MONO indicator is on, FM reception
will be monaural regardless of the
strength of the tuned FM station.
(See page15 for more information.)
Tuning Up/Down: When the tuner
is in use, these buttons will tune up or
down through the selected frequency
band. A brief (1⁄2second) press of
the button will manually tune to the
next frequency increment, while
pressing and holding the button for a
longer period will automatically tune
to the next station with a signal strong
enough for acceptable reception.
These buttons will also control Fast
Forward and Fast Reverse
(or Rewind) for compatible Harman
Kardon compact disc players/
changers and cassette tape decks.
ODirect: Press this button to select
a radio station by entering its fre-
quency using the Numeric Keys R.
(See page15 for more information.)
PNumeric Keys: These buttons
serve as a ten-button numeric key-
pad to enter tuner preset positions.
QAuto Preset: When the tuner and
FM band have been selected, this
button may be used to automatically
program the tuner presets for all
active stations. To start the auto pre-
set scan, press and hold the button.
Note that the MEMO and PRESET indi-
cators will flash. After a few seconds,
the tuner will start to “look” for active
stations, as shown by increasing fre-
quency numbers in the Information
Display. Release the button and note
that the tuner will briefly stop at each
active station and add a preset num-
ber to the memory. If the FM tuner
found less the 30 FM stations with
acceptable signal strength, the Auto
Preset tuning will scan two more
cycles or until the remaining vacant
preset memory spaces have been
filled with those found in the first
scan. The scan will stop when all 30
preset memory spaces have been
filled or when three scans through
the band have been completed.
RSecondary Control Cover: This
sliding cover normally is in the “up”
position so that it hides the sec-
ondary controls. To access these
controls, place your thumb on the
small recessed area at the top cen-
ter of the control, and gently press
the cover down and towards you.
SClear Button: This button is used
to clear preset memory information
for the HK3270’s tuner. (See pages
15–16 for more information on tuner
presets.)
TMemory: Press this button to
open a memory position that stores
a preset location for the HK3270’s
tuner. (See pages15–16 for more
information on tuner presets.)
13
HK3270 "U" om (B) 2/5/99 10:40 AM Page 13

Installation and Connections
System Installation
After unpacking the unit, and placing it
on a solid surface capable of supporting
its weight, you will need to make the
connections to your audio and video
equipment. These steps need to be done
only when the receiver is first installed,
or when a change is made to the input
source equipment.
Audio Equipment Connections
We recommend that you use high-quality
interconnect cables when making connec-
tions to source equipment and recorders
to preserve the quality of the signals.
When making connections to audio
source equipment or speakers it is always
a good practice to unplug the unit from
the AC wall outlet. This prevents any pos-
sibility of accidentally sending audio or
transient signals to the speakers that may
damage them.
1. Connect the analog output of a CD
player to the CD inputs ¶.
NOTE: When the CD player has both
fixed and variable audio outputs it is best
to use the fixed output unless you find
that the input to the receiver is so low
that the sound is noisy, or high that the
signal is distorted.
2. Connect the Play/Out jacks of a cas-
sette deck, MD or other audio recorder to
the Tape Monitor In jacks ª. Connect
the Record/In jacks on the recorder to
the Tape Monitor Out jacks ‚on
the HK3270. When the tape deck con-
nected to these jacks is a three-head unit
or has off-head playback, it will be possi-
ble to monitor the output of the source
being recorded.
3. Connect the output of a second audio
recorder, VCR or other line-level audio
device to the Tape 2 Play/In jacks ⁄.
If a recorder is used, connect its Rec/In
jacks to the matching outputs ¤.
4. The output of any electronics product
with a line-level output, such as a TV set,
satellite receiver or DVD may be connected
to the Aux jacks •.
5. Connect the outputs of a turntable
with a moving magnet cartridge to the
Phono inputs §. To insure that the
phono playback is noise-free, connect
the ground wire from the tone arm to
the Phono Ground terminal £.
6. Assemble the AM Loop Antenna
supplied with the unit as shown below.
Connect it to the AM screw terminals ¡.
7. Connect an FM antenna to the
FM (75 ohm) connection ™. The
FM antenna may be an external roof
antenna, an inside powered or wire lead
antenna or a connection from a cable
TV system. Note that if the antenna or
connection uses 300-ohm twin-lead
cable, you must use the 300-ohm-to-
75-ohm adapter supplied with the unit
to make the connection.
Speaker and Output Connections
To assure that all the audio signals are
carried to your speakers without loss of
clarity or resolution, we suggest that you
use high-quality speaker cable. Many
brands of cable are available, and the
choice of cable may be influenced by the
distance between your speakers and this
receiver, the type of speakers you use,
personal preferences and other factors.
Your dealer or installer is a valuable
resource to consult in selecting the
proper cable.
Regardless of the brand of cable selected,
we recommend that you use a cable con-
structed of fine, multistrand copper with a
gauge of 14 or smaller. Remember that in
specifying cable, the lower the number,
the thicker the cable.
Cable with a gauge of 16 may be used for
short runs of less than ten feet. We do not
recommend that you use cables with an
AWG equivalent of 18 or higher due to
the power loss and degradation in
performance that will occur.
Cables that are run inside walls should
have the appropriate markings to indicate
listing with UL, CSA or other appropriate
testing agency standards. Questions about
running cables inside walls should be
referred to your installer or a licensed
electrical contractor who is familiar with
the NEC and/or the applicable local
building codes in your area.
14
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Installation and Connections
When connecting wires to the speakers,
be certain to observe proper polarity.
Remember to connect the “negative” or
“black” wire to the same terminal on the
receiver and the speaker. Similarly, the
“positive” or “red” wire should be con-
nected to the like terminal on the HK3270
and speaker.
We also recommend that the length of
cable used to connect speaker pairs be
identical. For example, use the same
length piece of cable to connect the front
left and front right or surround left and
surround right speakers, even if the
speakers are a different distance from
the HK3270.
NOTE: While most speaker manufacturers
adhere to an industry convention of using
black terminals for negative and red ones
for positive, some manufacturers may
vary from this configuration. To assure
proper phase, and optimal performance,
consult the identification plate on your
speaker, or the speaker’s manual to verify
polarity. If you do not know the polarity
of your speaker, ask your dealer for
advice before proceeding, or consult
the speaker’s manufacturer.
Connect the speakers using the following
steps:
1. Connect the main speakers to the
Speaker 1 terminals fl.
2. Connect a second set of speakers,
or speakers that are in a second room
location to the Speaker 2 terminals ‡.
3. When an optional, powered subwoofer
is used, connect the outputs of the
Subwoofer Out jacks fito the line-
level inputs of the subwoofer. When the
subwoofer’s amplifier has stereo inputs,
run interconnects from both jacks. When
the subwoofer has a mono input only,
use the bottom jack for the connection.
When a passive subwoofer is used, these
connections will be made to the optional
amplifier that powers the subwoofer.
System and Power Connections
The HK3270 is designed for flexible use
with external control components and
power amplifiers. These connections are
easy to make during an initial installa-
tion, or at a later date should you choose
to upgrade your system.
Remote Control Extension
If the receiver is placed behind a solid or
smoked glass cabinet door, the obstruc-
tion may prevent the remote sensor from
receiving commands. In this event, an
optional remote sensor may be used.
Connect the output of the remote sensor
to the Remote Cont. In jack ¢.
If other components are also prevented
from receiving remote commands, only
one sensor is needed. They may use this
unit’s sensor or a remote eye by running
a connection from the Remote Cont.
Out jack ∞to the Remote In jack on
Harman Kardon or other compatible
equipment.
External Audio Power Amplifier
Connections
If desired, an optional, external amplifier
may be used in place of the HK3270’s
internal power amplifier.
To connect an external power amplifier,
first remove the jumper pins that connect
the Preamp Out ›and Main In ‹
jacks on the rear panel. Keep the jumpers
in a safe place should they be needed at a
later time.
Using high-quality audio interconnect
cables, connect the Preamp Out jacks
›to the input jacks on your power
amplifier. Make certain to match the
right output to the right input and the
left output to the left input.
Note that when an external power ampli-
fier is used, no special adjustments are
required. All volume and other control
adjustments are made using the standard
front panel or remote controls.
AC Power Connections
The Accessory Outlets °receive
power as long as the Main Power
Switch 1is in the “ON” position.
Power will still be supplied to these out-
lets even when the HK3270 is in the
Standby mode.
In order to remove power to these outlets,
the unit must be turned off by pressing
the Main Power Switch 1so that it is
in the “OFF” position.
15
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Installation and Connections
Speaker Placement
Foroptimal listening enjoyment, and for
soundfieldreproduction that best re-creates
theoriginal recording, it is goodpractice
toplace the speakers so thattheyform a
trianglewith the speakers at thefrontof
theroom, and the preferred listeningspot
atthe third point of thetriangle.The
distancebetween each speaker and the
listenershould be identical.
For example, if the speakers are 2.5
meters from one another, each of the
speakers should optimally be placed so
that they are also 2.5 meters from the lis-
tener. It is also desirable to place speakers
so that their tweeters, or high-frequency
drivers are aimed at ear height when you
are seated in the listening position.
To optimize the soundfield, or to suit
your listening room environment, you
may find that some experimentation is
required to find the correct location.
Ideally, pans from left to right across the
front of the room should sound smooth,
and instruments should appear to be
coming from the proper location to where
they would be placed in an orchestra.
Theplacementofsubwoofersshouldbe
doneassuggestedinthemanufacturer’s
instructions.Ingeneral,subwoofersoften
producebestresultswhentheyareplaced
inthecornerofaroom,butoptimalplace-
mentwillvarywidelydependingonroom
size,thesubwoofertypeandtheplacement
ofrugsandfurnitureinaroom.
Finally, when all connections are com-
plete, plug the power cord into a non-
switched120-volt AC wall outlet. You’re
ready to enjoy the HK3270!
16
Right Front
Speaker
Left Front
Speaker
A good starting point for speaker place-
ment is to make the distance between the
two speakers and the distance between
either speaker and the listener is identical.
HK3270 "U" om (B) 2/5/99 10:40 AM Page 16

Operation
Basic Operation
Once you have completed the setup and
configuration of your new receiver, it is
simple to operate and enjoy. The follow-
ing instructions will provide the steps
needed to enjoy the HK3270:
• Install the two supplied AAA batteries
in the remote as shown. Be certain to
observe the (+) and ( – ) polarity indica-
tors shown in the bottom of the battery
compartment.
• When using the HK3270 for the first
time, it is necessary to press the Main
Power button 1on the front panel to
turn the unit on. This places the unit in
a standby mode, as indicated by the
amber color of the Power Indicator
3. Once the unit is in standby, you may
begin a listening session by pressing the
System Power Control 2on the
front panel or the Main Power On
button åon the remote. Note that the
Power Indicator 3will turn red, then
green. This will turn the unit on and
return it to the input source that was last
used. The unit may also be turned on
from standby by pressing any of the
Source Selector buttons on the front
panel )!@#$%^
.
To turn the unit off at the end of a
listening session simply press the
System Power Control 2on the
front panel or the Main Power Off
button ∫on the remote. This places
the unit in the Standby mode, and the
Power Indicator 3will turn amber to
remind you that the unit is ready for
operation when a power command is
received from the remote. Please note
that power will still be applied to the
Accessory Outlets °even when the
unit is in the Standby mode.
When the remote is used to turn the unit
“off” it is actually placing the system in a
standby mode, as indicated by the amber
color of the Power Indicator 3.
When you will be away from home for
an extended period of time it is always
a good idea to completely turn the
unit off using the front panel Main
Power Switch 1.
• To dim the brightness of the front panel
display, press the Dimmer button ˙on
the remote. The first press will dim the
lights to half normal. A second press will
turn the display completely off. Press the
Dimmer button ˙again to restore the
display to normal brightness.
Source Selection
• To select a source at any time, press
any of the Source Selector buttons on
the remote çor front panel )!@
#$%^
.
• During a listening session you may
wish to adjust the Bass 7and Treble
8and Balance 9controls to suit
your listening tastes.
• Adjust the volume to a comfortable
level using the front panel Volume
Control or remote MasterVolume
Up/Down ∆buttons.
• To temporarily silence all speaker
outputs press the Mute button ¬Ô .
This will cut the output to all speakers,
but it will not effect any recording or
dubbing that may be in progress. When
the system is muted the MUTE indicator
will light in the Information Display
Úand the Volume/Mute indicator Ò
will flash. Press the Mute button ¬Ô
again to return to normal operation.
• For private listening, plug the 1/4"
stereo phone plug from a pair of stereo
headphones into the front panel
Headphone jack 4.
• One or two separate sets of speakers
may be connected to the HK3270.
To listen to one of the speaker sets press
the Speaker buttons 56on the
front panel corresponding to the desired
speakers. Both speakers may be turned
off for private headphone listening.
• To program the HK3270 for automatic
turn off, press the Sleep button ©on the
remote. Each press of the button will
increase the time before shut down in the
following sequence:
The sleep time will be displayed in the
Information Display and it will count
down until the time has elapsed.
90
min 80 min 70 min 60 min 50 min
40
min 30
min 20 min 10 min OFF
17
HK3270 "U" om (B) 2/5/99 10:40 AM Page 17

Operation
When the programmed time has elapsed
the unit will automatically turn off. Note
that the front panel display will dim to
one half brightness when the Sleep func-
tion is programmed. To cancel the Sleep
function, press the Sleep button ©until
the Sleep indicator numbers disappear
and the Information Display shows the
current source. Pressing any control but-
ton while the Sleep control is activated
will momentarily return the Information
Display to full brightness for increased
legibility without interrupting the Sleep
function.
Tuner Operation
The HK3270’s tuner is capable of tuning
AM, FM and FM Stereo broadcast stations.
Stations may be tuned manually, or they
may be stored as favorite station presets
and recalled from a 30-position memory.
Station Selection
1. Press the AM %or FM ^buttons
on the front panel or on the remote ç
to select the tuner as an input.
2. Press these buttons again at any time
to switch between AM and FM.
3. To select stations press, and briefly
hold, the Tuning button &and the
tuner will search for the next highest or
lowest frequency station that has an
acceptable signal. To tune to the next
station, press the button again. Tap the
Tuning button &to advance one
frequency increment at a time, or press
and hold it to locate a specific station.
When the TUNED indicator illuminates,
the station is properly tuned and should
be heard with clarity.
18
4. Stations may also be tuned directly
by pressing the Direct button O, and
then pressing the Numeric Keys P
that correspond to the station’s frequency.
The desired station will automatically
be tuned.
NOTE: When the FM reception of a
station is weak, audio quality will be
increased by switching to Mono mode
by pressing the FM Mode button Ó
µuntil the STEREO indicator goes out.
Preset Tuning
Upto 30stationsmay bestoredin the
HK3270’s memory foreasy recall usingthe
frontpanel controlsorthe remote.
To enter a station to the memory, first
tune the station using the steps outlined
above. Then:
1. Press the Memory button Ton
the remote. Note that MEMO and PRESET
indicators will illuminate and flash in
the Information Display.
2. Within five seconds, press the
Numeric Keys Pcorresponding to
the location where you wish to store this
station’s frequency.
3. Repeat the process after tuning any
additional stations to be preset.
Auto Preset
• Preset stations may also be pro-
grammed automatically for the FM
band. To automatically enter each sta-
tion that may be tuned with acceptable
quality into the HK3270’s preset memo-
ries, first select the FM band. Next, press
and briefly hold the Auto Preset but-
ton Quntil the MEMO and PRESET
indicators begin to flash, and the station
frequency indication begins to increase.
Release the button and note that the
tuner will search the entire FM band, and
stop briefly at each station that has
acceptable signal strength. The HK3270
will automatically assign a preset num-
ber to each station, and then search for
the next station. The automatic scan
process will stop when all 30 preset mem-
ory locations have been filled or the entire
FM band has been scanned three times.
NOTE: Usingtheautomatictuningmode
inareaswithmorethan30FMstations
willcompletelyfillthepresetmemories,
andover-writeanypreviouslymemorized
presetsforeitherAMorFMstations.
TIP: The automatic scan process
may enter stations that you do not
wish to retain in the memory, or it
may enter a station on more than one
frequency if the signal is too strong.
These unwanted stations may be
removed from the memory using the
Preset Clear function outlined below.
Recalling Preset Stations
• To manually select a station previously
entered in the preset memory, press the
Numeric Keys Pthat correspond to
the desired station’s memory location.
• To manually tune through the list of
stored preset stations one by one, press
the Preset buttons (∂on the front
panel or remote.
• To automatically scan through the
stations entered in the preset memory,
press the Preset Scan button *on
the front panel or remote. The tuner will
run through the list of preset stations,
stopping for five seconds at each one.
Press the button again to stop the scan at
your desired station.
HK3270 "U" om (B) 2/5/99 10:40 AM Page 18

Operation
Clearing Preset Stations
Unwanted preset stations may be erased
from the unit’s memory to make it easier
to tune only those stations you want.
To remove a preset station from the
HK3270’s tuner memory, first tune to the
station using the Preset Scan button
*on the front panel or remote, or
by entering the preset number directly,
using the Numeric Keys P.
When the preset station to be removed
has been tuned, first press the Memory
button T. The MEMO and PRESET indi-
cators in the Information Display will
flash, and the actual preset number will
disappear from the display. Next, press the
Clear button Swithin five seconds.
The preset station will be removed from
the memory, and the action will be con-
firmed by the brief appearance of the
word CLEAR and the preset number
location in the Information Display. That
memory location will now be empty, and
you may program a different station to
that location, or leave it empty.
Tape Recording
In normal operation, the audio source
selected for listening through the HK3270
is sent to the Tape Mon Out and Tape 2
Rec Out outputs. This means that any
program you are listening to may be
recorded simply by placing machines con-
nected to the outputs for Tape Monitor
‚or Tape 2 ¤in the record mode.
When a tape recorder with separate record
and playback heads is used, you may
monitor the output of the recording by
selecting the T•Mon !or Tape 1 ç.
Note that a red LED will illuminate in the
front panel above the T•Mon !to
remind you that you are listening to the
record playback instead of the actual
input source being recorded.
IMPORTANT NOTE: Please make cer-
tain that you are aware of the copyright
restrictions on any material you copy.
Memory Backup
This product is equipped with a memory
backup system that preserves tuner pre-
sets and system configuration informa-
tion if the unit is accidentally unplugged
or subject to a power outage.
Processor Reset
In the rare case where the unit’s opera-
tion or the displays seem abnormal, the
cause may involve the erratic operation of
the system’s memory or microprocessor.
To correct this problem, first unplug the
unit from the AC wall outlet and wait at
least three minutes. After the pause,
reconnect the AC power cord and check
the unit’s operation. If the system still
malfunctions, a system reset may clear
the problem.
If the system still does not respond, it
may be necessary to perform a complete
reset. To reset the system, first turn the
HK3270 off by pressing the Main Power
Switch 1and then releasing it so that
it extends out beyond the front panel and
the word “OFF” is visible in red lettering
at the top of the switch.
Next, press and hold the T•Mon and CD
Input Selector buttons !#on the
front panel ONLY. While holding these
buttons in, press the Main Power
Switch 1in until it latches so that the
button is flush with the front panel.
The Information Display will briefly
show the word RESET, and then return
to normal operation.
Note that when the system is reset in this
fashion, all tuner presets will be lost and
must be reentered.
If the system is still operating incorrectly,
there may have been an electronic
discharge or severe AC line interference
that has corrupted the memory or
microprocessor.
If these steps do not solve the problem,
consult an authorized Harman Kardon
service depot.
19
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Troubleshooting Guide
20
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.
If the problem is... Make sure that the...
No lights illuminate when POWER button is pressed Unit is plugged into a live outlet
Main power switch is pressed in
No sound is heard Unit has not been muted
Correct input function selector button has been pressed
Volume is turned up
No output from one or more channels Cables are not defective: Check/replace speaker cables
Tuner sound has a large amount of interference, or The antenna is properly connected
The “Stereo” display is not illuminated, or The antenna is properly located
Tuner sound distorts and/or volume level is too low The antenna is set in the proper direction
The antenna is adequate to receive the desired station
Tuner is intermittent or continuously buzzing or hissing The unit is away from fluorescent lights, TVs, motors and
other electrical appliances
HK3270 "U" om (B) 2/5/99 10:40 AM Page 20

Technical Specifications
21
Audio Section
Stereo Mode
Continuous Average Power (FTC)
65 Watts per channel, 20Hz–20kHz
@ < 0.08% THD, both channels driven into 8 ohms
95 Watts per channel, 20Hz–20kHz
@ < 0.2% THD, both channels driven into 4 ohms
Input Sensitivity/Impedance
Linear (High Level) 200mV/47kohms
Signal-to-Noise Ratio (IHF-A) 95dB
Frequency Response
@ 1W (+0dB, –3dB) 10Hz–80kHz
High Instantaneous
Current Capability (HCC) ±42 Amps
Transient Intermodulation
Distortion (TIM) Unmeasurable
Rise Time 16µsec
Slew Rate 40V/µsec
FM Tuner Section
Frequency Range 87.5–108MHz
Usable Sensitivity IHF 1.12 µV/12.3dBf
Signal-to-Noise Ratio Mono/Stereo 72/70dB
Distortion Mono/Stereo 0.3/0.5%
Stereo Separation 40dB @ 1kHz
Selectivity ±400kHz, 65dB
Image Rejection >80dB
IF Rejection >100dB
Tuner Output Level 1kHz, ±100kHz Dev 500mV
AM Tuner Section
Frequency Range 520–1710kHz
Signal-to-Noise Ratio >40dB
Usable Sensitivity Loop 500µV/M
Distortion 1kHz, 50% Mod 0.8%
Selectivity ±10kHz, >25dB
General
Power Requirement AC 120V/60Hz
Power Consumption 72W idle, 332W maximum
(both channels driven)
Dimension (Max)
Width 17.4 inches (442mm)
Height 6.1 inches (156mm)
Depth 16.3 inches (415mm)
Weight 24.6 lbs. (11.2 kg)
Depth measurement includes knobs, buttons and terminal connections.
Height measurement includes feet and chassis.
All features and specifications are subject to change without notice.
HK3270 "U" om (B) 2/5/99 10:40 AM Page 21