®
®
Power for the Digital Revolution.
HK 3375
STEREO RECEIVER
OWNER’S MANUAL
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HK 3375 STEREO RECEIVER
3 Introduction
3Safety Information
4Unpacking
5Front-Panel Controls
7Front-Panel Information Display
8Rear-Panel Connections
10 Remote Control Functions
12 Installation and Connections
14 Operation
14Basic Operation
14Source Selection
14Tuner Operation
15Tape Recording
15Memory Backup
15Processor Reset
16Troubleshooting Guide
17Technical Specifications
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 See trademark acknowledgements on page 17. ¡ – (number in a circle) indicates a rear-panel connection
2 TABLE OF CONTENTS
INTRODUCTION
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
Your HK 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.
INTRODUCTION 3
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 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 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.
■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 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 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.
4 SAFETY INFORMATION
FRONT-PANEL CONTROLS
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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
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 Indicator 3 surrounding 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.
) Tuning Button
! Tape Input Selector
@ Preset Scan
# CD Input Selector
$ Aux Input Selector
% Preset Selector
^ Dimmer Button
& FM/AM Selector
* FM Mode Selector
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 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 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.
( 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
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 Inputs ª. 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 5
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 page 15 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 E will 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:
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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 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.
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.
6 FRONT-PANEL CONTROLS
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