Harman kardon HK 3375 User Manual
HK 3375
STEREO RECEIVER
OWNER’S MANUAL
®
Power for the Digital Revolution.
®
3375
AUTO
MUTE T-MON
TUNED ST
MEMORY PRESET
SLEEP
HK 3375 STEREO RECEIVER
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
15 Memory Backup
15 Processor Reset
16 Troubleshooting Guide
17 Technical Specifications
See trademark acknowledgements on page 17.
2 TABLE OF CONTENTS
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
INTRODUCTION
INTRODUCTION 3
Congratulations! With your purchase of the
Harman Kardon
®
HK 3375 you are about to begin
many years of listening enjoyment.The HK 3375 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 3375 to make all of this happen, hookup and
operation are simple.Color-keyed connections and a
comprehensive remote control make the HK 3375
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 3375 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
The HK 3375 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 3375’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
almost fifty years ago.With state-of-the-art features
and time-honored circuit designs,the HK 3375 is one
of the finest receivers ever offered by Harman Kardon.
■ Harman Kardon®-designed high-current, ultra-
wide-bandwidth amplifier
■ 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
■ Subwoofer output
Important Safety Information
Verify Line Voltage Before Use
YourHK 3375 has been designed for use with 120volt 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 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.
SAFETY INFORMATION
4 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 infor mation
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 assure 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 sur-
face.
■ 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.
■ Due to the weight of the HK 3375 and the heat
generated by the amplifiers,there is the remote
possibility that the rubber padding on the bottom
of the unit’s feet may leave markings on certain
wood or veneer materials.Use caution when placing the unit on soft woods or other materials that
may be damaged by heat or heavy objects.
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 radiofrequency 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 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.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmfulinterference,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 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 protection are recyclable.Please respect the
environment and discard those materials at a local
recycling center.
At this time you should remove the protective plastic
film from the front-panel lens.Leaving the film in place
may affect the performance of your remote control.
FRONT-PANEL CONTROLS 5
FRONT-PANEL CONTROLSFRONT-PANEL CONTROLS
21
MEMORY PRESET
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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 Phone Input Selector
9 T-Mon Input Selector
) Tuning Button
! Tape Input Selector
@ Preset Scan
# CD Input Selector
$ Aux Input Selector
% Preset Selector
^ Dimmer Button
& FM/AM Selector
* FM Mode Selector
( Sleep Button
Ó Bass Control
Ô Treble Control
Balance Control
Ò Volume Control
Ú Volume/Mute Indicator
Û Information Display
Ù Speaker Selection Indicators
ı Remote Sensor Window
1 Main Power Switch: Press this button to apply
power to the HK 3375.When the switch is pressed in,
the unit is placed in a Standby mode,as indicated by
the amber LED
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
Switch
1
is “ON,” press this button to turn on the
HK 3375; press it again to turn the unit off. The
Power Indicator3surrounding the switch will
initially turn red as the HK 3375 performs a selfcheck, and it will change to green when the unit is
on and ready for use.
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
turned on, the indicator will briefly turn red, and then
change to green.A red indicator during nor mal
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 3375’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 3375.
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.
8 Phono Input Selector: Press this button to select
the output of a turntable that is connected to the
Phono Inputs§.
9 T-Mon Input Selector:Press this button to listen
to the output of a tape recorder connected to the
Tape Monitor Inputsª. The T-Mon Indicator I
will light to indicate that the input source is being
monitored when the HK 3375 is connected to a
three-head tape deck or another unit with off-head
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 F
FRONT-PANEL CONTROLS
6 FRONT-PANEL CONTROLS
will light in the 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 automatically
scan through the stations that have been programmed
in the HK 3375’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. If no preset stations
have been programmed into the HK 3375’s memory,the
message
0 PRESET will flash in the Information
Display
Û when this button is pressed. (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.If no preset stations have
been programmed into the HK 3375’s memory,the
message
0 PRESET will flash in the Information
Display
Û when this button is pressed. (See page15
for more information on tuner programming.)
^ Dimmer Button: Press this button to dim the
front-panel displays and indicators.The first press of
the button will dim the displays to one-half normal
brightness; the next press will turn all displays off
except for the
Power Indicator 3 and the Speaker
Selection Indicators
Ù.When the panel is
dimmed, it will return to normal brightness after
the unit is turned off, then on again.
& 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 Ewill light in the
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.
( 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 indicated
by the
Sleep Timer A, in the following order:
Ó Bass Control: Turn this control to modify the lowfrequency output of the left/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/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 front left/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 3375 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, 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.We recommend that you do not turn
the Volume Control past the “12 o’clock” position, at
which point the audio signal will begin to distort. Such
distortion, although inaudible,is capable of damaging
your hearing and your equipment.When the unit has
been muted by pressing the
Mute Button 5®,
the indicator will flash.
Û Information Display: This display delivers mes-
sages 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.
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.
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