Harman-Kardon HK 3470 User Manual
HK 3470 Stereo Receiver
OWNER’S MANUAL
®
MEMORY PRESET
SLEEP
AUTO
VMAx
MUTE T-MON
TUNED ST
Power for the digital revolution.
™
®
532HK3470
2 TABLE OF CONTENTS
3 Introduction
3 Safety Information
4 Unpacking
5 Front Panel Controls
7 Front Panel Information Display
8 Rear Panel Connections
10 Remote Control Functions
12 Installation and Connections
14 Operation
14 Basic Operation
14 Source Selection
14 Tuner Operation
15 Tape Recording
16 Remote Control Operation
17 Programming the Remote
19 Memory Backup
19 Processor Reset
19 Troubleshooting Guide
20 Technical Specifications
HK 3470 StereoReceiver
Typographical 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 jack
EXAMPLE – (OCR type) indicates a message that is visible on the front panel information display
EXAMPLE – (outlined type) indicates a lit indicator in the front panel information display
1 – (number in a square) indicates a specific front panel control
å – (letter in a circle) indicates a button or indicator on the remote
¡ – (number in a circle) indicates a rear panel connection
A – (letter in a square) indicates an indicator in the front panel display
3 INTRODUCTION
Introduction
Congratulations! With the purchase of the
Harman Kardon HK 3470 you are about to
begin many years of listening enjoyment.The
HK 3470 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 HK 3470 to make all of this happen,
hookup and operation are simple.Color-keyed
connections and a comprehensive remote control make the HK 3470 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
HK 3470 is able to deliver.
If you have any questions about this product, its
installation or operation,please contact your
dealer, your best local source of information.
Description and Features
Harman Kardon’s HK 3470 is the world’s first
stereo receiver to offer VMAx
®
. VMAx is a proprietary signal-processing technique that creates an open, spacious sound field when only
two loudspeakers are available.VMAx circuitry
is able to decode the ambience of a concert
hall or theater from a stereo recording.
The HK 3470 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 HK 3470’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-seven years ago.With
state-of-the-art features and time-honored circuit designs,the HK 3470 is one of the finest
receivers ever offered by Harman Kardon.
■ Harman Kardon-Designed High-
Current, Ultrawide-Bandwidth
Amplifier
■ VMAx Processing Mode – Exclusive to
Harman Kardon Receivers
■ Phono Input Section
■ Speaker 1/Speaker 2 Outputs for High-
Quality Sound in Two Locations
■ Pre-Out/Main-In Jacks for Use With
External Amplifiers, Equalizers or
Speaker Processors
■ Programmable Learning Remote
Control
■ Subwoofer Outputs
Important Safety Information
Verify Line Voltage Before Use
YourHK 3470 has been designed for use with
120-voltAC 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 voltage
requirements for your specific model, or about
the line voltage in your area, contact your selling dealer before plugging 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 electrical 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.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: To prevent electric shock,
do not use this (polarized)
plug with an extension cord,
receptacle or other outlet
unless the blades can
be fully inserted to
prevent blade exposure.
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.
4 SAFETY INFORMATION
Safety Information
Do Not Open the Cabinet
There are no user-serviceable components
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 protection
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 supporting 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 attention 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 grounding system of the building, as close to the point
of cable entry as possible.
Installation Location
■To ensure proper operation and to avoid the
potential for safety hazards,place the unit
on a firm and level surface.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 provided
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 sufficient 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.
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 disconnect 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 reception,which can
be determined by turning the equipment off
and on, the user is encouraged to try to correct
the interference by one or more of the
following measures:
■ Reorient or relocate the receiving antenna.
■ Increase the separation between the equip-
ment 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.
This device complies with Part 15 of the FCC
Rules.Operation is subject to the following two
conditions: (1) this device may not cause harmful interference and (2) this device must accept
interference received, including interference that
may cause undesired operation.
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 shipment 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 twodimensional 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 protection are recyclable.
Please respect the environment and discard
those materials at a local recycling center.
5 FRONT PANEL CONTROLS
1 Main Power Switch: Press this button to
apply power to the HK 3470.When the switch is
pressed in, the unit is placed in a Standby mode,
as indicated by the Power Indicator 3 surrounding 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.
2 System Power Control:When the Main
Power Switch1is “ON,” press this button
to turn on the HK 3470; press it again to turn
the unit off.Note that the Power Indicator
3
surrounding the switch will turn green
when the unit is on.
3 Power Indicator:This LED will light 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
briefly turn red, and then change to green.A
red indicator during normal operation means
that the unit is in the Protect mode,and should
be turned off and then checked for a possible
speaker-wire short circuit.
4 Headphone Jack:This jack may be used to
listen to the HK 3470’s output through a pair of
headphones.Be certain that the headphones
have a standard 1⁄4" stereo phone plug.
5 Mute: Press this button to momentarily
silence the speaker output of the HK 3470.
6 Speaker 1 Button: Press this button to
turn the speakers connected to the Speaker 1
output terminals ‡ on or off.
7 Speaker 2 Button: Press this button to
turn the speakers connected to the Speaker 2
output terminals ° on or off.
Front Panel Controls
21
MEMORY PRESET
SLEEP
AUTO
VMAx
VMAx
MUTE T-MON
TUNED ST
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9
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8) @$ ^
*
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2
1
3
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1 Main Power Switch
2 System Power Control
3 Power Indicator
4 Headphone Jack
5 Mute
6 Speaker 1 Selector
7 Speaker 2 Selector
8 Phono Input Selector
9 T-Mon (Tape Monitor) Input Selector
) Tuning Button
! Tape Input Selector
@ Preset Scan
# CD Input Selector
$ Aux Input Selector
% Preset Selector
^ VMAx Selector
& FM/AM Selector
* FM Mode Selector
( Sleep Button
Ó Bass Control
Ô Treble Control
Balance Control
Ò Volume Control
Ú Volume/Mute Indicator
Û Main Information Display
Ù Speaker Selection Indicators
ı Remote Sensor Window
6 FRONT PANEL CONTROLS
Front Panel Controls
8 Phono Input Selector: Press this button
to select the output of a turntable that is connected to the Phono inputs§.
9 T-Mon (Tape Monitor) Input Selector:
Press this button to listen to the output of a
tape recorder connected to the Tape Monitor
inputsª. The T-Mon indicator will light to
indicate that the input source is being monitored when the HK 3470 is connected to a
three-head tape deck or another unit with offhead playback.
) 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 light in the
Main Information Display Û.A brief (1/2
second) 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.
! Tape Input Selector: Press this button to
listen to the output of a tape recorder or other
device connected to the Tape 2 inputs ⁄.
@ Preset Scan: Press this button to auto-
matically scan through the stations that have
been programmed in the HK 3470’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.)
# CD Input Selector: Press this button to
listen to the output of a CD player connected to
the CD inputs ¶.
$ Aux Input Selector: Press this button to
listen to the output of a device connected to
the Aux inputs •.
% Preset Selector: Press this button to step
up or down through the list of stations that has
been entered into the preset memory.(See
page15 for more information on tuner programming.)
^ VMAx Selector: Press this button to
engage VMAx processing of a stereo input.The
VMAx Mode Indicator A will light, and you
will notice a wider, more spacious sound field.
In order to obtain maximum benefit, you should
be seated midway between the two loudspeakers,and the same distance from the speakers as
the speakers are from each other.The speakers
must be placed facing parallel and evenly with
each other so that their baffles are in the same
plane.Press the button again to return to
Stereo mode.
& FM/AM Selector: Press this button to
select the tuner as the input to the receiver.
When the tuner is in use,press this button to
change between the AM and FM frequency
bands.
* FM Mode Selector: Press this button to
select the Stereo or Mono mode for FM tuning.
In the STEREO mode,a Stereo indicator will
light in the Main Information Display Û,
and stereo reception will be provided when stations 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.VMAx will
have no effect in MONO mode.
( Sleep Button: Press this button to place
the unit in the Sleep mode.Each press of the
button selects the amount of time that will
remain before the unit automatically goes
into the Standby mode,as shown in the Main
Information Display Û, in the following
order:
Ó Bass Control: Turn this control to modify
the low-frequency output of the left and right
channels by as much as ±10dB.Set this control
to a suitable position for your taste and room
acoustics.
Ô Treble Control: Turn this control to modify
the high-frequency output of the left and right
channels by as much as ±10dB.Set this control
to a suitable position for your taste and room
acoustics.
Balance Control: Turn this control to
change the relative volume for the left and
right channels.
Ò Volume Control:Turn the knob clockwise
to increase volume,counterclockwise to
decrease the volume.
Ú Volume/Mute Indicator:This indicator
will glow green when the HK 3470 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 toward the left,as in 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 by pressing the Mute button 5,
the indicator will flash.
Û Main Information Display: This display
delivers messages and status indications to
help you operate the receiver.
Ù Speaker Selection Indicators:These
indicators light as a green LED next to the designation for each speaker pair to show when
they are active.Press the Speaker 1 6 or
Speaker 2 7 Selectors to activate either
pair of speakers.Both sets of speakers may be
selected simultaneously as long as all speakers
have a nominal impedance of 8 ohms or
greater. However,occasionally the actual
impedance will vary,depending upon the
program material.If the impedance drops to a
point where there may be potential damage
to the equipment, the HK 3470 will go into
protect mode.
ı 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.
90
min80min70min60min50min
40
min
30
min20min10min
OFF
7 FRONT PANEL INFORMATION DISPLAY
Front Panel Information Display
A VMAx Mode Indicator: This indicator
lights when the VMAx mode is in use. (See
page 14 for a description of the VMAx Mode.)
B Preset Number/Sleep Timer:When the
tuner is in use,these numbers indicate the specific preset memory location in use.(See page
15 for more information on preset stations.)
When the Sleep function is in use,these numbers show how many minutes remain before
the unit goes into the Standby mode.
C Preset Indicator: This indicator lights
when the tuner is in use to show that the
Preset Number/Sleep Timer B is showing
the station’s preset memory number.(See page
15 for more information on tuner presets.)
D Sleep Indicator: This indicator lights when
the Sleep function is in use.The numbers in the
Preset Number/Sleep Timer Indicators will show
the minutes remaining before the HK 3470
goes into the Standby mode.(See page 14 for
more information on the Sleep function.)
E
Memory Indicator: This indicator flashes
when entering presets and other information
into the tuner’s memory.
F Stereo Indicator:This indicator lights
when an FM station is being tuned in stereo.
G
Tuned Indicator:
This indicator lights when
a station is being received with sufficient signal
strength to provide acceptable listening quality.
H Auto Indicator: This indicator lights when
the tuner’s Auto mode is in use.
I Main Information Display: This display
shows messages relating to the status,input
source,tuner or other aspects of the HK 3470’s
operation.
J Tape Monitor (T-Mon) Indicator:When
used with three-head cassette decks,or other
recording devices that offer immediate playback
of the recording as it is being made,the
HK 3470 allows you to monitor a recording
rather than merely listening to the input source,
or waiting until the recording session is complete in order to hear the recording. Press the
Tape Monitor Input Selector 9ç, and the
T-Mon Indicator J will light to remind you
that you are monitoring the recording. Press the
Tape Monitor Input Selector 9ç again to
hear the input source.
K Mute Indicator: This indicator lights to
remind you that the HK 3470’s output has been
silenced by pressing the Mute button 5®.
Press the Mute button again to return to the
previously selected output level.
A VMAx Mode Indicator
B Preset Number/Sleep Timer
C Preset Indicator
D Sleep Indicator
E Memory Indicator
F Stereo Indicator
G Tuned Indicator
H Auto Indicator
I Main Information Display
J Tape Monitor (T-Mon) Indicator
K Mute Indicator
K
J
MUTE T-MON
I
H
AUTO
TUNED ST
VMAx
A
G
F
MEMORY PRESET
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C
SLEEP
B
8 REAR PANEL CONNECTIONS
Rear Panel Connections
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
‡
a
·
°
£
HK3470
¡ AM Antenna
™ FM Antenna
£ Phono Ground
¢ Remote IR In
∞ Remote IR Out
§ Phono Inputs
¶ CD Inputs
• Aux Inputs
ª Tape Monitor Play/In
‚ Tape Monitor Record/Out
⁄ Tape 2 Play/In
¤ Tape 2 Record/Out
‹ Main In
› Pre-Out/Main-In Jumper Pins
fi Preamp Out
fl Subwoofer Out
‡ Speaker 1 Terminals
° Speaker 2 Terminals
· Accessory Outlets
a Power Cable
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