Harman Kardon HK 3470 User's Manual
Contents
1. HK 3470 Stereo Receiver OWNER S MANUAL harman kardon _ Hk 3470 MUTE AUTO TUNED ST MEMORY PRESET RRRRRRRRRRR SSE VMAx Aux Sleep cD Preset Scan Tuning rest Speaker 2 v i harman kardon Power for the digital revolution HK 3470 Stereo Receiver Introduction Safety Information Unpacking Front Panel Controls Front Panel Information Display Rear Panel Connections Remote Control Functions Installation and Connections Operation Basic Operation Source Selection Tuner Operation Tape Recording Remote Control Operation Programming the Remote Memory Backup Processor Reset Troubleshooting Guide Technical 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 0CR 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 number in a square indicates a specific front panel control letter in a circle indicates a button or indicator on the remote number in a circle indicates a rear panel connection m m af d l 5 letter a square indicates an indicator in the fron2. 888 The LED Indicator will blink for each entry Step 4 The LED Indicator will remain on for one second and then blink three times to indicate that it has reset the group of keys for the selected device page That device page will now operate the factory default set of codes Resetting the Entire Remote It is also possible to completely reset all of the programmed codes in the remote to the factory default settings Use the following procedure Step 1 Enter the learning mode by simultane ously pressing any of the Device buttons and the Learn button Step 2 Press and release any device button other than PHONO AM or FM The LED Indicator will blink once and remain Step 3 Use the Numeric Keys to enter the numbers 999 The LED Indicator will blink for each entry Step 4 The LED Indicator will remain on for five seconds and then blink three times to indicate that it has reset all of the keys on the remote The entire remote will now oper ate the factory default set of codes Operation Memory Backup This product is equipped with a memory backup system that preserves tuner presets and system configuration information if the unit is acciden tally unplugged or subjected to a power out age The unit s memory is stored in an EEPROM and thus the HK 3470 will retain information such as programmed presets without being connected to a main power source virtually indefinitely Proc
3. Main Power Off Source Selectors Preset Up Down Transport Controls Disc Skip Sleep Button Dimmer Button Tuning Direct Button Numeric Keys Auto Preset Secondary Control Cover Clear Button Memory Button Master Volume Scan Button Mute Button FM Mode Button VMAx Selector Tuning Up Down Learn Button Speaker 1 Selector 6 Speaker 2 Selector Transmitter Window LED Indicator 10 REMOTE CONTROL FUNCTIONS MAIN POWER SPEAKER ON l 2 PHONO TAPEMON 2 LEARN FM DWN PRESET UP DWN TUNING UP Pri Q OOO DISC SKIP FM MODE VMAx HK 3470 RC harman kardon Remote Control Functions Main Power On When the HK 3470 is in the Standby mode as indicated by the Power Indicator E glowing amber press this button to tum the HK 3470 on Main Power Off When the HK 3470 is turned on press this button to place it in the Standby mode Note that in this mode the unit is still connected to AC Power Source Selectors Press these buttons to select an input source for the HK 3470 Preset Up Down When the tuner is in use these buttons scroll through the stations that have been programmed into the HK 3470 s memory These buttons also control the track Skip Up and Down on compatible Harman Kardon compact disc players and
4. Tuner Operation The HK 3470 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 FM F4 buttons on the front panel or on the remote to select the tuner as an input 2 Press these buttons again at any time to switch between AM and FM Operation 3 To select stations press and briefly hold the Tuning button and the tuner will search for the next highest or lowest frequency sta tion that has an acceptable signal To tune to the next station press the button again Tap the Tuning button to advance one frequen cy increment at a time or press and hold it to locate a specific station When the TUNED indi cator lights the station is properly tuned and should be heard with clarity 4 Stations may also be tuned directly by press ing the Direct button and then pressing the Numeric Keys 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 switch ing to Mono mode by pressing the FM Mode button until the STEREO indicator goes out Preset Tuning Up to 30 stations may be stored in the HK 3470 s memory for easy recall using the front panel controls or the remote In order to program preset stations into
5. mally be placed so that they are also 10 feet from the listener 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 Left Front Right Front Speaker Speaker A good starting point for speaker placement is to make the distance between the two speakers and the distance between either speaker and the listener identical To optimize the sound field or to suit your lis tening 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 within an orchestra The placement of subwoofers should be done as suggested in the manufacturer s instructions In general subwoofers often produce best results when they are placed in the corner of a room along the same wall as the speakers but optimal placement will vary widely depending on room size the subwoofer type and the placement of rugs and furniture in a room It may be helpful to temporarily position the sub woofer in the usual listening position then walk around the room while program material is playing until the bass reproduction sounds best to your ears That location is likely to be the optimum position for the subwoofer Finally when all connections are complete plug the power co
6. HK 3470 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 config uration 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 pro ceeding or consult the speaker s manufacturer Connect the speakers using the following steps 1 Connect the main speakers to the Speaker 1 terminals 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 left and right Subwoofer Out jacks to 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 output jack for the connection If the subwoofer has only speaker level inputs and outputs connect the Speaker 1 terminals to the speaker level inputs on the subwoofer and then connect the speaker level outputs on the subwoofer to your main left and right speakers following the instructions provided with the subwoofer When a passive subwoofer is used these connections will be made to the optional amplifier that powers the subwoofer Installat
7. SELECT DISC SKIP UP DISC SKIP UP DISK SKIP Down TRANSPORT SELECT DISC SKIP DOWN DISC SKIP DOWN FM MODE TIME PRESET SCAN INTRO SCAN INTRO SCAN INTRO SCAN TUNING Up CDP SELECT TUNING Down CDR SELECT DIRECT TRACK DIRECT MEMORY PROGRAM PROGRAM AUTO PRESET FINALIZE CLEAR CLEAR CLEAR 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 1 1 1 8 8 8 8 9 9 9 9 0 0 0 0 16 OPERATION Operation Programming the Remote Control Although the remote control is prepro grammed at the factory to operate compatible Harman Kardon CD recorders players and changers and cassette decks you may program the remote with control codes that operate other devices FUNCTION PROGRAMMABLE REMOTE BUTTONS AUX TAPE 2 Not all of the buttons on the HK 3470 remote control may be programmed If you attempt to learn code into a button not shown in the table below you may experience undesired responses to remote commands or lose the ability to perform some functions using the remote control TAPE MON You may program remote buttons only on these pages AUX TAPE 2 TAPE MON and CD Codes may not be programmed to the pages for Phono AM or FM Only the buttons shown in this table with an X may be programmed cD MAIN POWER ON MAIN POWER OFF SPEAKERS 1 SPEAKERS 2 PHONO TAPE MON TAPE 2 LEARN cD AUX AM FM PRESET
8. When placing the unit on a shelf be certain that the shelf and any mounting hardware can support the weight of the product E Make certain that proper space is provided both above and below the unit for ventila tion If this product will be installed in a cab inet or other enclosed area make certain that there is sufficient air movement within the cabinet Under some circumstances a fan may be required IB Do not place the unit directly on a carpeted surface W Avoid installation in extremely hot or cold locations or an area that is exposed to direct sunlight or heating equipment 4 SAFETY INFORMATION E Avoid moist or humid locations IB 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 immedi ately 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 discon nect any interconnection cords with other com ponents and make certain that you disconnect the unit from the AC outlet Important Information for the User NOTE This equipment has been tested an
9. changers Transport Controls These buttons 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 Also when a compatible Harman Kardon compact disc player or changer or cassette deck has been selected using the Source Selectors additional transport control functions are available using the Preset Up Down and Tuning Up Down buttons Disc Skip These buttons do not have any functions when controlling the HK 3470 but they operate the Disc Skip functions of compati ble Harman Kardon compact disc changers 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 will automatically go into the Standby mode as shown in the Main Information Display in the following order 40 30 20 10 OFF Dimmer Button 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 Direct Button Press this button to select a radio station by entering its frequency using the Numeric Keys 4 See p
10. into protect mode 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 Front Panel Information Display M MUTE 8 DAE TUNED ST MEMORY PRESET SLEEP NA MA WA M gt WA WA DZ AN GN AN AN AN i FN VM Mode Indicator E Preset Number Sleep Timer Preset Indicator B Sleep Indicator N VMAx Mode Indicator This indicator lights when the VMAx mode is in use See page 14 for a description of the VM Ax Mode E Preset Number Sleep Timer When the tuner is in use these numbers indicate the spe cific preset memory location in use See page 15 for more information on preset stations When the Sleep function is in use these num bers show how many minutes remain before the unit goes into the Standby mode Preset Indicator This indicator lights when the tuner is in use to show that the Preset Number Sleep Timer 2 is showing the station s preset memory number See page 15 for more information on tuner presets 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 fo
11. is a valuable resource for help in selecting the proper cable Regardless of the brand of cable selected we recommend that you use a cable constructed of fine multistrand copper with a gauge of AWG14 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 rec ommend 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 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 posi tive or red wire should be connected to the like terminals on the HK 3470 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 Speaker 1 left and right or Speaker 2 left and right speakers even if the speakers are a different distance from the
12. s authority to operate the equipment Unpacking The carton and shipping materials used to pro tect 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 care fully 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 mate rials please note that the carton and other sec tions of the shipping protection are recyclable Please respect the environment and discard those materials at a local recycling center Front Panel Controls harman kardon O SPEMER 2 MUTE SLEEP VMAX TUNED ST MEMORY PRESET Phono Speaker1 Speaker 2 El Main Power Switch System Power Control EJ Power Indicator Headphone Jack Mute Fi Speaker 1 Selector Speaker 2 Selector E Phono Input Selector E T Mon Ta
13. 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 inter connect cables when making connections 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 prac tice to unplug the unit from the AC wall outlet This prevents any possibility of accidentally sending audio or transient signals to the speak ers 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 so high that the signal is distorted 2 Connect the Play Out jacks of a cassette deck CDR MD or other audio recorder to the Tape Monitor In jacks Connect the Record In jacks on the recorder to the Tape Monitor Out jacks on the HK 3470 When the tape deck connected to these jacks is a three head unit or has off head playback it will be possible to monitor the output of the source being recorded 3 Connect the output of a second audio recorder CDR VCR or other line level audio device to the T
14. the device whose codes you are trying to program e g press the CD button along with the Learn button The LED Indicator will blink once and remain lit Step 3 Press and release the button on the HK 3470 remote that you wish to program M ake sure that it is one of the program mable buttons listed in the table on page 17 The LED Indicator will blink once and remain lit Step 4 Press and hold the button on the other device s remote whose code you wish to program into the HK 3470 remote until the LED Indicator blinks three times and remains lit then release the button on the other remote If the LED Indicator flickers for five sec onds instead of blinking three times and remaining lit the learning operation was unsuc cessful Try the procedure again starting from Step 2 making sure that the transmitter win dows of the two remotes face each other and that the button you are trying to program on the HK 3470 remote is listed in the table on page 17 Step 5 To program additional buttons repeat Steps 2 through 4 Step 6 To exit the learning mode either press the Learn button once or wait 20 sec onds for the remote to automatically return to normal operation 18 OPERATION Resetting One Key to Default Setting When a new code is programmed into the remote it overwrites the previous code for that button on that page However should you make a mistake it is possible to reset any but ton to its
15. 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 KK Tape Input Selector Press this button to listen to the output of a tape recorder or other device connected to the Tape 2 inputs IP 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 IF Preset Selector Press this button to step up or down through the list of stations that has been entered into the preset memory See page 15 for more information on tuner pro gramming VMAx Selector Press this button to engage VMAx processing of a stereo input The VMAX Mode Indicator FY will light and you will notice a wider more spacious sound field In order to obtain maximum benefit you should 6 FRONT PANEL CONTROLS be seated midway between the two loudspeak ers and the same distance from the speake
16. DOWN 144 PRESET UP gt gt I TUNING DOWN 144 TUNING UP gt gt I RECORD PAUSE STOP gt gt gt lt gt gt gt REVERSE PLAY FORWARD PLAY DISC SKIP UP DISC SKIP DOWN FM MODE gt lt gt lt gt lt gt gt gt gt gt gt gt gt gt lt gt lt gt lt gt gt gt gt gt gt gt gt gt lt gt lt gt lt gt gt gt gt gt gt gt gt gt lt gt gt gt lt VMAx P SCAN gt lt gt lt gt lt gt lt MUTE SLEEP TUNING UP MASTER VOL UP DIMMER TUNING DOWN gt lt gt lt MASTER VOL DOWN DIRECT 1 2 3 MEMORY Co SI e 9 gt lt gt lt gt gt gt gt gt gt gt gt gt AUTO PRESET 0 gt lt gt lt gt lt gt lt gt lt gt lt gt gt gt gt gt gt gt gt lt gt lt gt lt gt lt gt lt gt lt gt gt gt gt gt gt gt gt lt 17 OPERATION Operation Programming the Remote Buttons Is a Simple Procedure Step 1 Place the HK 3470 remote control and the remote control for the other device e g compact disc player so that their infrared transmitter windows face each other at a distance of about one half inch Step 2 Simultaneously press the Learn button and the Source Selector that corre sponds to
17. Kardon service center This unit is designed for trouble free operation Most problems users encounter are due to operating errors 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 No lights appear when POWER button is pressed Make sure that the 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 Speakers have been turned on using the Speaker Selectors 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 Stereo display is not illuminated or Tuner sound distorts and or volume level is too low Antenna is properly connected Antenna is properly located Antenna is set in the proper direction Antenna is adequate to receive the desired station Tuner is intermittent or continuously buzzing or hissing other electrical appliances Unit is away from fluorescent lights TVs motors and Remote does not function correctly Batteries are not weak and replace them if necessary Correct device page has been selected by pressing the Source Selector key Remote sensor is not obstructed and remote is pointing directly at sensor at an angle
18. age 15 for more information Numeric Keys These buttons serve as a ten button numeric keypad to enter tuner preset positions or to tune stations directly Auto 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 preset scan press and hold the button Note that the MEMO and PRESET indicators will flash After a few seconds the tuner will start to look for active stations as shown by increasing fre quency numbers in the Main Information Display Release the button and note that the tuner will briefly stop at each active station and add a preset number to the memory If the FM tuner finds fewer than 30 FM stations with acceptable signal strength the Auto Preset tun ing 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 Secondary Control Cover This sliding cover normally is in the up position so that it hides the secondary controls the Direct button Numeric Keys Auto Preset button Clear button and Memory button Qo To access these controls place your thumb on the small recessed area at the top center of the control and gently press the cover down and towards you Clear Button This but
19. ape 2 Play In jacks If a recorder is used connect its Rec In jacks to the matching Tape 2 Record 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 12 INSTALLATION AND CONNECTIONS 6 Assemble the AM Loop Antenna supplied with the unit as shown below Connect it to the AM screw terminals 1c 7 Connect antenna Antenna connection The antenna be external antenna inside powered wire lead antenna or a connection from a cable TV system Note that if the antenna or connec tion 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 ensure that all the audio signals are carried to your speakers without loss of clarity or reso lution we suggest that you use high quality speaker cable Many brands of cable are avail able and the choice of cable may be influenced by the distance between your speakers and the receiver the type of speakers you use personal preferences and other factors Your dealer or installer
20. at when an external power amplifier is used no special adjustments are required All volume and other control adjustments are made using the standard front panel or remote controls If you wish to use external processing equip ment such as an equalizer you may connect the device to the preamp out and main in jacks by removing the Preamp Out Main In Jumper Pins and connecting the Preamp Out jacks to the inputs of the external device and the outputs of the device to the Main In jacks Alternatively you may connect the external device to the Tape Monitor Loop Connect the Tape Monitor Record Out jacks to the inputs of the external device and connect the outputs of the device to the Tape Monitor Play In jacks AC Power Connections The Accessory Outlets receive power as long as the receiver is turned on Power to these outlets is removed when the unit is in the Standby mode or when the Main Power Switch El is in the OFF position Speaker Placement For optimal listening enjoyment and for sound field reproduction that best re creates the origi nal recording it is good practice to place the speakers so that they form a triangle with the speakers at the front of the room and the pre ferred listening spot at the third point of the tri angle The distance between each speaker and the listener should be identical For example if the speakers are 10 feet from one another each of the speakers should opti
21. ct your sell ing 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 recom mend 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 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 3 INTRODUCTION Safety Information Do Not O
22. d 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 rea sonable protection against harmful interference in a residential installation This equipment gen erates uses and can radiate radio frequency energy and if not installed and used in accor dance 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 interfer ence 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 E Reorient or relocate the receiving antenna Increase the separation between the equip ment and receiver E Connect the equipment into an outlet on a circuit different from that to which the receiver is connected IB 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 harm ful 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
23. either AM or FM stations TIP The automatic scan process may enter sta tions 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 out lined below Recalling Preset Stations To manually select a station previously entered in the preset memory press the Numeric Keys that 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 J on the front panel or remote To automatically scan through the stations entered in the preset memory press the Preset Scan button J on the front panel or remote The tuner will cycle 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 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 HK 34705 tuner memory first tune to the station using the Preset Scan button F on the front panel or remote or by entering the preset num ber directly using the Numeric Keys When the preset station to be removed has been tuned first press the Memory button The MEMO and PRESET indicators in the Main Information Display w
24. essor Reset In the rare case where the unit s operation or the displays seem abnormal the cause may involve the erratic operation of the system s memory or microprocessor Troubleshooting Guide 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 HK 3470 off by press ing the Main Power Switch El and then releasing it so that it extends out beyond the front panel and the word OFF is visible in red at the top of the switch Next press and hold the T Mon and CD Input Selector buttons EJ fE on the front panel ONLY While holding these buttons in press the Main Power Switch El in until it latches so that the button is flush with the front panel The Main Information Display will briefly show the word RESET and then return to normal operation Note that when the system is reset in this fash ion 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 your dealer or an authorized Harman
25. eviously selected output level B Main Information Display Tape Monitor T M on Indicator 3 Mute Indicator 7 FRONT PANEL INFORMATION DISPLAY Rear Panel Connections e SPEAKER 1 8 Ohms a e u Ow lt 2 AC 120V 60HZ pes 00 x 000000 T REMOTE CONTROL 1 SPEAKER 2 8 Ohms SV IAMAK g AM Antenna Aux Inputs Preamp Out FM Antenna Phono Ground Remote IR In Remote IR Out Phono Inputs CD Inputs 8 REAR PANEL CONNECTIONS Tape Monitor Play In Tape Monitor Record Out Tape 2 Play In Tape 2 Record Out Main In Pre Out M ain In Jumper Pins Subwoofer Out Speaker 1 Terminals Speaker 2 Terminals Accessory Outlets A Power Cable Rear Panel Connections AM Antenna Connect the AM loop anten na 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 exter nal FM antenna to this terminal Phono Ground Connect the ground wire from a turntable to this terminal to reduce sys tem hum Remote IR In If the HK 3470 s front panel IR sensor is blocked due to cabinet doors or other obstructions an e
26. factory default using the following procedure Step 1 Enter the learning mode by simultane ously pressing any of the Device buttons and the Learn button Step 2 Press and release the particular device button for the page containing the key you wish to reset The LED Indicator will blink once and remain on Step 3 Use the Numeric Keys to enter the numbers 777 The LED Indicator will blink for each entry Step 4 Press and release the button that you wish to reset The LED Indicator will blink three times to indicate that the button has been reset to the factory default code Step 5 You may repeat Step 4 to reset the codes for other keys If you wish to reset the codes for an entire device page see below Step 6 exit the learning mode either press the Learn button once or wait 20 sec onds for the remote to automatically return to normal operation Resetting an Entire Device Page If you wish to reset all of the codes for a partic ular device you need not individually reset every button on that page of the remote This is the procedure for resetting the codes on a par ticular page Step 1 Enter the learning mode by simultane ously pressing any of the Device buttons and the Learn button Step 2 Press and release the particular device button for the page you wish to reset The LED Indicator will blink once and remain on Step 3 Use the Numeric Keys to enter the numbers
27. 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 avail able 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 cir cuit designs the HK 3470 is one of the finest receivers ever offered by Harman Kardon Harman Kardon Designed High Current Ultrawide Bandwidth Amplifier E VMAx Processing Mode Exclusive to Harman Kardon Receivers E 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 E Programmable Learning Remote Control E Subwoofer Outputs Important Safety Information Verify Line Voltage Before Use Your HK 3470 has been designed for use with 120 volt AC current Connection to a line volt age other than that for which it is intended can create a safety and fire hazard and may dam age the unit If you have any questions about the voltage requirements for your specific model or about the line voltage in your area conta
28. ill flash and the actual preset number will disappear from the display Next press the Clear button within five seconds The preset station will be removed from the memory and the action will be confirmed by the brief appearance of the word CLEAR and the preset number location in the Main Information Display That memory location will now be empty and you may program a differ ent station to that location or leave it empty Tape Recording In normal operation the audio source selected for listening through the HK 3470 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 connected 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 Tape Monitor Input Selector E Note that the T Mon Indicator will light in the Main Information Display Pj to remind you that you are listening to the record playback instead of the actual input source being record ed IMPORTANT NOTE Please make certain that you are aware of the copyright restrictions on any material you copy 15 OPERATION Operation Using the Remote Control It is convenient to think of the functions of the remote control buttons in terms of pages where each source device e g CD player rep resents its own page
29. ion and Connections System and Power Connections The HK 3470 is designed for flexible use with external control components and power ampli fiers These connections are easy to make dur ing an initial installation 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 obstruction may prevent the remote sensor from receiving com mands In this event an optional remote sensor may be used Connect the output of the remote sensor to the Remote IR 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 IR Out jack to the Remote In jack on Harman Kardon or other compatible equip ment External Audio Power Amplifier Connections If desired an optional external amplifier may be used in place of the HK 3470 s internal power amplifier To connect an external power amplifier first remove the Pre Out Main In 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 M ake certain to match the right output to the right input and the left output to the left input Note th
30. l EA Balance Control Volume Control Volume M ute Indicator Bq Main Information Display Speaker Selection Indicators Remote Sensor Window 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 Ej Mute Press this button to momentarily silence the speaker output of the HK 3470 Fi Speaker 1 Button Press this button to turn the speakers connected to the Speaker 1 output terminals on or off Speaker 2 Button Press this button to turn the speakers connected to the Speaker 2 output terminals on or off 5 FRONT PANEL CONTROLS Front Panel Controls EJ Phono Input Selector Press this button to select the output of a turntable that is con nected to the Phono inputs E T Mon Tape Monitor Input Selector Press this button to listen to the output of a tape recorder connected to the Tape Monitor inputs The T Mon indicator will light to indicate that the input source is being moni tored when the HK 3470 is connected to a three head tape deck or another unit with off head playback EN 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 A brief 1 2 second press of the button
31. memory you must use the remote control To enter a station into the memory first tune the station using the steps outlined above Then 1 Press the Memory button on the remote Note that the MEMO and PRESET indicators will light and flash in the Main Information Display 2 Within five seconds press the Numeric Keys corresponding 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 programmed automatically for the entire FM band To auto matically enter each station that may be tuned with acceptable quality into the HK 3470 pre set memories first select the FM band Next press and briefly hold the Auto Preset button until the MEMO and PRESET indicators begin to flash and the station frequency indica tion 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 HK 3470 will automatically assign a preset number to each station and then search for the next station The automatic scan process will stop when all 30 preset memory locations have been filled or the entire FM band has been scanned three times NOTE Using the automatic tuning mode in areas with more than 30 FM stations will com pletely fill the preset memories and overwrite any previously memorized presets for
32. 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 PE Volume Control Turn the knob clockwise to increase volume counterclockwise to decrease the volume Volume M ute 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 EJ the indicator will flash Main Information Display This display delivers messages and status indications to help you operate the receiver Speaker Selection Indicators These indicators light as a green LED next to the des ignation for each speaker pair to show when they are active Press the Speaker 1 J or Speaker 2 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
33. n to return to Stereo mode Tuning Up Down When the tuner is in use these buttons will tune up or down through the selected frequency band 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 auto matically 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 Learn Button This button is used when you wish to program codes from another device s remote control into the HK 3470 remote The simple procedure is described on page 18 Speaker 1 Selector Press this button to tum the speakers connected to the Speaker 1 Output terminals on or off Speaker 2 Selector Press this button to turn the speakers connected to the Speaker 2 Output terminals on or off Transmitter Window Point this area of the remote toward the receiver when using the remote LED Indicator This indicator will light or blink to confirm various steps in the learning process as the HK 3470 remote is programmed It will also flicker when a key is pressed during normal operation to indicate that it is transmit ting an infrared code 11 REMOTE CONTROL FUNCTIONS Installation and Connections System Installation After unpacking the unit and placing it on a
34. o 12 o clock straight up the HK 3470 is playing at the maximum volume level It is important that you make sure never to exceed this maximum vol ume level at any time in order to avoid possi ble damage to your loudspeakers due to clip ping a type of distortion that is not audible to the human ear until it is severe enough to per manently damage most loudspeakers It is also possible depending upon the program material for clipping to occur at volumes below the max imum volume level To temporarily silence all speaker outputs press the Mute button This will cut the output to all speakers but it will not affect any recording or dubbing that may be in progress When the system is muted the MUTE indicator will light in the Main Information Display and the Volume Mute indicator will flash Press the Mute button 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 EJ One or two separate sets of speakers may be connected to the HK 3470 To listen to one of the speaker sets press the Speaker buttons on the front panel corresponding to the desired speakers The active speakers will be indicated by a lit green LED in the Speaker Indicators display Both sets of speakers may be turned off for private headphone listen ing To program the HK 3470 for automatic turn off
35. of no more than 30 degrees Also check for fluorescent lighting which may be interfering with the IR transmission Remote has been reprogrammed correctly If you are in doubt reset the remote to the factory default programming using the procedure outlined above Cassette deck or CD player has not been plugged into the Phono input Only use the outputs of a tumtable or tonearm with the Phono input Cassette or CD sounds distorted 19 OPERATION TROUBLESHOOTING Technical Specifications Audio Section Stereo M ode Continuous Average Power FTC 100 Watts per channel 20Hz 20kHz lt 0 07 THD both channels driven into 8 ohms 135 Watts per channel 20Hz 20kKHz lt 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 10 2 110 2 High Instantaneous Current Capability HCC Transient Intermodulation Distortion Unmeasurable Rise Time 16 usec Slew Rate 40V usec 45 Amps FM Tuner Section Frequency Range Usable Sensitivity Signal to Noise Ratio Distortion Stereo Separation Selectivity Image Rejection IF Rejection Tuner Output Level AM Tuner Section Frequency Range Signal to Noise Ratio Usable Sensitivity Distortion Selectivity General Power Requirement Power Consumption Dimension M ax Width Height Depth Weight Depth measurement includes knobs but
36. of remote functions The result is that some of the keys will perform dif ferent functions depending upon which device page has been selected prior to pressing the key Device pages are selected by pressing the Source Selectors which also changes the input source selection on the HK 3470 Three of the device pages are factory programmed to operate compatible Harman Kardon products The Tape Monitor device page is programmed as a factory default to operate Harman Kardon cassette decks The Tape 2 page defaults to Harman Kardon CD R control codes The CD page defaults to REMOTE BUTTON FUNCTIONS Harman Kardon CD player or changer control codes Note that all of these keys may be pro grammed in the learning mode to transmit dif ferent remote codes to perform other functions and or operate other devices Please refer to the table below for specific information on the default functions of the affected keys for these devices BUTTON TAPE MON TAPE 2 CD Cassette deck control codes CD Recorder control codes CD player changer control codes PRESET DWN REV SKIP SKIP BACK REV SKIP PRESET UP FWD SKIP SKIP FORWARD FWD SKIP TUNING DWN REW REV SEARCH REV SEARCH TUNING UP FF FWD SEARCH FWD SEARCH Rec Pause REC PAUSE RECORD PAUSE Stop STOP STOP STOP Rev Play REV PLAY RANDOM PLAY Fwd Play FWD PLAY PLAY PLAY DISK SKIP Up TRANSPORT
37. pe Monitor Input Selector 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 E sur rounding the System Power Control PJ 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 E Tuning Button EW Tape Input Selector Preset Scan CD Input Selector Aux Input Selector EJ Preset Selector E9 VMAx Selector FM AM Selector EEJ FM Mode Selector System Power Control When the Main Power Switch El is ON press this button to turn on the HK 3470 press it again to turn the unit off Note that the Power Indicator surrounding the switch will turn green when the unit is on 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 EE Sleep Button EI Bass Control Eil Treble Contro
38. pen 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 dis connect it from the AC power source immedi ately and consult an authorized service station CATV or Antenna Grounding If an outside antenna or cable system is con nected 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 elec trodes and requirements of the grounding elec trode 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 ground ing system of the building as close to the point of cable entry as possible Installation Location W To ensure proper operation and to avoid the potential for safety hazards place the unit on a firm and level surface
39. press the Sleep button on the front panel or remote Each press of the button will increase the time before shutdown in the fol lowing sequence 90 80 70 60 50 min min min min min 40 30 20 10 OFF min min min min The sleep time will be displayed in the Main Information Display and it will count down until the time has elapsed When the programmed time has elapsed the unit will automatically turn off Note that the front panel display will dim to one half bright ness when the Sleep function is programmed To cancel the Sleep function press the Sleep button until the Sleep indicator numbers disappear and the Main Information Display shows the current source Pressing any control button while the Sleep control is activated will momentarily return the Main Information Display to full brightness for increased legibility without interrupting the Sleep function To take advantage of Harman Kardon s exclu sive VM Ax mode Press the VMAx button EJO When the VMAx circuits are engaged patented processing algorithms are used to cre ate a three dimensional sound space with the illusion of phantom speakers at center and surround positions This spacious sound will simulate a surround sound presentation with out the need to add additional speakers To return to standard stereo listening press the VMAx button ITJ again and note that the VMAx Mode Indicator will go out
40. r more information on the Sleep function E Memory Indicator This indicator flashes when entering presets and other information into the tuner s memory a Stereo Indicator This indicator lights when an FM station is being tuned in stereo VMAx 3 Memory Indicator 9 Stereo Indicator 8 Tuned Indicator d Auto Indicator Tuned Indicator This indicator lights when a station is being received with sufficient signal strength to provide acceptable listening quality 2 Auto Indicator This indicator lights when the tuner s Auto mode is in use l Main Information Display This display shows messages relating to the status input source tuner or other aspects of the HK 3470 s operation 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 com plete in order to hear the recording Press the Tape Monitor Input Selector EJ and the T Mon Indicator B will light to remind you that you are monitoring the recording Press the Tape Monitor Input Selector again to hear the input source 4 Mute Indicator This indicator lights to remind you that the HK 3470 output has been silenced by pressing the Mute button Press the Mute button again to return to the pr
41. r s preamp and amplifier sec tions Unless an external amplifier equalizer or speaker processor is used they should be left con nected See page 13 for more information on exter nal amplifier connections Preamp Out These jacks provide an out put for the left and right channels to an optional external amplifier In normal opera tion unless an external power amplifier is used the jumper pins should remain connected to the Main In jacks Subwoofer Out Connect these jacks to the line level input of a powered subwoofer If an external subwoofer amplifier is used connect this jack to the subwoofer amplifier input When a single mono subwoofer is used make the connection to the bottom jack Speaker 1 Terminals Connect these ter minals to the appropriate terminals on your speakers Speaker 2 Terminals Connect these ter minals 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 The power to these outlets remains on as long as the receiver itself is on When the receiver is turned off or placed in the Standby mode power to these outlets is removed NOTE The power consumption of the devices plugged into these outlets should not exceed 100 watts A Power Cable Connect the AC plug to a nonswitched AC wall output 9 REAR PANEL CONNECTIONS Remote Control Functions Main Power
42. rd into a nonswitched 120 volt AC wall outlet You re ready to enjoy the HK 3470 13 INSTALLATION AND CONNECTIONS Operation Basic Operation The HK 3470 is simple to operate and very sim ilar to stereo receivers you may have used in the past This section will explain the use of several features that may be new to you e Install the two supplied AAA batteries in the remote as shown Be certain to observe the and polarity indicators shown in the bottom of the battery compartment When using the HK 3470 for the first time it will be necessary to press the Main Power button 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 E Once the unit is in standby you may begin a listening session by pressing the System Power Control on the front panel or the Main Power On button on the remote Note that the Power Indicator E will 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 E E or remote To turn the unit off at the end of a listening session simply press the System Power Control on the front panel or the Main Power Off button on the remote This places the unit in the Standby mode and the Power Indicator E will turn amber to remind you tha
43. rs 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 EFJ 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 PB 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 VM Ax will have no effect in MONO mode I 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 the following order oh Ear E 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 Treble Control Turn this control to modify the high frequency output of the left and right channels by as
44. t panel display 2 TABLE OF CONTENTS 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 con trol 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 VM Ax VM Ax is a pro prietary signal processing technique that cre ates an open spacious sound field when only two loudspeakers are available VM Ax circuitry is able to decode the ambience of a concert hall or theater from a stereo recording The HK 3470 is a
45. t the unit is ready for operation when a power command is received from the remote 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 E 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 El 14 OPERATION To dim the brightness of the front panel dis play 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 bright ness Source Selection To select a source at any time press any of the Source Selector buttons on the remote or front panel E E IF i During a listening session you may wish to adjust the Bass ET Treble and Balance EA controls to suit your listening tastes Adjust the volume to a comfortable level using the front panel Volume Control or remote Master Volume Up Down but tons The volume level is displayed by the posi tion of the Volume Indicator Think of the Volume Control knob as the face of a clock with the Volume Indicator indicat ing the hour The HK 3470 is playing at the minimum volume level when the Volume Indicator points to 7 o clock when the Volume Indicator points t
46. ton is used to clear preset memory information for the HK 34705 tuner See page 15 for more information on tuner presets Memory Button Press this button to open a memory position that stores a preset location for the HK 3470 s tuner See page 15 for more information on tuner presets Master Volume Press these buttons to raise or lower the 3470 s volume P Scan Button Press this button to auto matically scan through the list of stations that are programmed into the HK 3470 s tuner memory When the button is pressed each pre set 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 Button Press this button to momentarily silence the HK 3470 FM Mode Button 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 See 15 for more information VMAx Selector Press this button to engage VMAx processing of a stereo input The VMAX Mode Indicator F 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 loudspeak ers 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 agai
47. tons and terminal connections Height measurement includes feet and chassis All features and specifications are subject to change without notice Harman Kardon is a registered trademark and Power for the digital revolution is a trademark of Harman Kardon Inc 87 5 108M Hz 1 12 uV 13 5dBf Mono Stereo 73 72dB Mono Stereo 0 3 0 4 40dB 1kHz 400kHz 65dB gt 80dB gt 1004 1kHz 100kHz Dev 500mV 520 1710kHz gt 40dB Loop 500 uV M 1kHz 50 Mod 0 8 10kHz gt 25dB AC 120V 60Hz 72W idle 332W maximum both channels driven 17 4 inches 442mm 6 1 inches 156mm 16 3 inches 415mm 26 8 Ib 12 1kg VM Ax is a registered trademark of Harman International Industries Inc and is an implementation of Cooper Bauck Transaural Stereo under patent license harman kardon H Harman International Company 250 Crossways Park Drive Woodbury New York 11797 www harmankardon com 2000 Harman Kardon Incorporated Part VIAR K1001 02A
48. xternal 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 outputs of your turntable or tonearm to these jacks Note that only turntables with M oving Magnet MM type cartridges may be used CD Inputs Connect these jacks to the out put 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 portable audio player or MP3 player Tape 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 connected to a three head recorder or another device with off head playback 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 HK 3470 s power amplifier Unless an external power amplifier is used the jumper pins should remain connected to the Preamp Out jacks Pre Out Main In Jumper Pins These pins connect the receive
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