Harman Kardon HK6900 User's Manual
Contents
1.2. HK6900 r tegrated harman kardon HK6800 HK6900 Integrated Amplifier Instruction Manual harman kardon HK6800 and HK6900 Features a TT wn_IN _ 00 Een Thank you for choosing a Harman Kardon integrated amplifier This is a superb piece of high fidelity equipment that has been meticulously designed to provide you with thousands of hours of enjoyment This manual describes the features and capabilities of your new integrated amplifier In addition it describes the proper method for connecting your integrated amplifier to your system Please read this owner s manual and use your integrated amplifier only in accordance with its instructions Keep the manual in a safe place for future reference Discrete circuitry Rather than employing simple integrated circuits in the amplifier section the HK6800 and HK6900 use completely discrete separate electronic co
3. VCR TAPE MONITOR selector has not been switched to the correct unit 2 Tape deck or VCR is plugged into the wrong set of input jacks 3 Output of tape deck is plugged into OUT on back of amplifier Plug OUT on tape deck into IN on amplifier Turntable sound is extremely faint 1 Turntable has been connected to wrong set of input jacks If turntable has a moving magnet cartridge connect cables to the PHONO MM jacks if turntable has a moving coil cartridge connect cables to PHONO MC jacks Low pitched hum or buzz from turntable 1 Ground wire from turntable has not been connected securely to ground terminal on amplifier 2 Cable from turntable is too close to power cords or speaker wires 3 Tiny wires connecting cartridge to turntable arm are not firmly connected Low frequency oscillation or howling when playing turntable 1 Too much bass boost is being applied Turn off LOUDNESS and or reduce amount of BASS tone control boost Turn on the SUBSONIC filter 2 Turntable is too close to speakers 3 Turntable is placed on unstable surface Speakers lack bass 1 Polarity of one speaker has been reversed Check speaker wires and ensure that the terminal on the amplifier is connected to the terminal on the speaker Sound quality of tuner is poor 1 Tuner s antenna is not connected or is not positioned properly Tone control is not functioning 1 The TONE DEFEAT switch is on bypassing the tone controls
4. MAIN DIRECT When the MAIN DIRECT switch is on the source signal goes directly to the input of the amplifier bypassing all tone controls and other preamplifier circuitry and is attenuated only by the volume control The indicator light will be lit when the MAIN DIRECT switch is on PHASE CORRECT LOUDNESS At low volume levels your ear is less sensitive to very low bass frequencies than it is at normal listening levels The loudness button provides a special equalization curve that boosts low frequencies The loudness button is useful for restoring full frequency balance at low volume levels and can also be used to improve the bass response of small bookshelf speakers The indicator light will be lit when PHASE CORRECT LOUDNESS is on SUBSONIC filter Warped records and turntable resonance can generate sub audible frequencies that can cause your speaker s woofer cones to visibly flutter This very low frequency noise while inaudible can rob power from your amplifier can cause feedback through your turntable can cause intermodulation distortion at audible frequencies and can actually damage your woofers if the movement is violent HK6800 and 6900 Front Panel Controls enough The subsonic filter reduces these inaudible frequencies at 6dB per octave below 15Hz The audible portion of the frequency range will not be affected so it is useful to leave the subsonic filter on at all times when listening to the turntable The indi
5. the speakers connected to the SPEAKER SYSTEM 2 terminals e 1 2 Select this position to play both sets of speakers at the same time HK6800 and HK6900 Connections Cassette Tape Deck cs besan lek ES ooo 200 coo ree we E coo OOG M0000 wo Power Amplifier Compact Disc Player Za osaoco D C LJ Laser Video Player GS VCEO OUT AUDIO OU Speaker System 1 Right channel Left channel RIGHT LEFT PRE OUT PHONO GND RIGHT LEFT VIDEO CONNECTIONS SPEAKER SPEAKER SYSTEM 1 OPERATING MODE 82 40 av MONTOR 61000 GO Turntable MM Turntable MC VOEO NPUT Left channel Right channel Video Cassette Recorder TV Monitor Speaker System 2 HK6800 and HK6900 Connections Before you begin to connect this unit to your system be sure that all components are turned off and unplugged from the electrical outlet As you connect each component carefully connect the plugs to the i
6. 2 The MAIN DIRECT switch is on bypassing the tone controls Specifications HK6900 HK6800 mm Continuous Average Power FTC per Channel 20Hz 20kHz Both Channels Driven 8 ohms 170 Watts lt 0 08 THD 120 Watts lt 0 08 THD 4 ohms 170 Watts lt 0 08 THD 120 Watts lt 0 08 THD HCC High instantaneous Current Capability 90 Amps 70 Amps Negative Feedback overall 12dB 12dB Power Bandwidth at half rated output 8 ohms Frequency Response at 1 Watt output 0 3dB lt 10Hz 100kHz lt 10Hz 100kHz 0 2Hz 180kHz 0 2Hz 180kHz Slew Rate 280 Volts usec 280 Volts usec Square Wave Rise Time 1 8usec 1 8usec Transient Intermodulation Distortion TIM Unmeasurable Unmeasurable Damping Factor 70 70 Signal to Noise Ratio ref rated power output A Wtd Phono MM 83dB 83dB Phono MC 76dB 76dB Video CD 98dB 98dB Input Sensitivity Impedance Phono MM 2 5mV 47k Ohms 125 pF 2 5mV 47k Ohms 125 pF Phono MC 120u V 56 Ohms 120 V 56 Ohms Video CD 250mV 22k Ohms 250mV 22k Ohms Phono Overload MM MC 150mV 7mV 150mV 7mV RIAA Equalization 20Hz 20kHz 0 2dB 0 2dB Tone Control Range Bass 50Hz Treble 10kHz 10dB 10dB 10dB 10dB Phase Shift 400Hz 20kHz lt 5 lt 5 Subsonic Filter 15Hz 6dB octave 15Hz 6dB octave Phase Correct Loudness Contour at 50Hz 6dB 6dB Weight Ibs kg
7. In the OFF position this switch turns off the internal video preamplifier for the purest possible sound quality CARTRIDGE selector This switch sets up the gain and input impedance of your amplifier s internal circuitry to match the type of cartridge being used on your turntable Be sure you connect your turntable to the appropriate PHONO input jacks on the back of the HK 6800 6900 MM for moving magnet cartridges or MC for moving coil cartridges Then use this switch to select the type of cartridge mounted on your turntable Note that you can connect both moving coil and moving magnet cartridge inputs and use this switch to select between them The MC setting engages a special MC step up amplifier stage VOLUME control This knob controls the sound level Turn the VOLUME control all the way down before you turn on your amplifier or change sound source This will protect your speakers from being damaged by sudden high volume sound FUNCTION selector The FUNCTION selector controls which program source you are listening to e PHONO Selects a turntable connected to either the MM or MC phono jacks e CD Selects a compact disc player connected to the CD jacks e TUNER Selects an AM or FM broadcast from a tuner connected to the tuner jacks e AUX Selects sound from any component connected to the AUX jacks e A V Selects sound from an audio video component such as a camcorder VCR or TV tuner connected to the A V ja
8. PROTECT light goes on and stays on 1 The unit is overheated Make sure that the unit is receiving adequate ventilation Also check to make sure that the SPEAKER OPERATING MODE switch is set to 4Q if you are using 4 ohm speakers using the 8Q setting with 4 ohm speakers can cause overheating Be sure you give the unit adequate time to cool off the PROTECT light will remain on until the unit is cool enough to operate safely which may take 60 to 90 minutes Your amplifier will cool off more quickly if you turn off its power switch 2 Speaker wires are touching one another causing a short circuit that activates protection circuits that shut down the amplifier Check the speaker wires 3 If you have ensured that the unit is not overheated and even with the speaker wires completely disconnected the PROTECT light still remains on take the unit to an authorized Harman Kardon service center for service No sound 1 Speakers are connected to wrong set of speaker terminals 2 SPEAKER selector is not switched to correct set of speakers 3 Speaker wires are touching one another causing a short circuit that activates protection circuits that shut down the amplifier 4 FUNCTION selector has not been switched to the source currently playing 5 VCR TAPE MONITOR selector is switched to 1 or 2 while the source currently playing is CD PHONO TUNER AUX or A V Switch VCR TAPE MONITOR selector to SOURCE No sound from tape deck or VCR 1
9. TAPE MONITOR selector to 1 if the tape deck or VCR you re recording on is connected to VCR TAPE 1 Set the selector to 2 if the unit is connected to VCR TAPE 2 Make sure you return the VCR TAPE MONITOR selector to SOURCE when you re finished listening to the tape deck or VCR 4 To listen to another program source while you copy from one deck to another return the VCR TAPE MONITOR selector to SOURCE then set the FUNCTION selector to whatever source you want to listen to These selections will not affect your recording Playing a laser video disc 1 Set the FUNCTION selector to A V 2 Set the VCR TAPE MONITOR selector to SOURCE 3 Turn on the video disc player Copyright Information Recording of copyrighted material for other than personal use is illegal without permission of the copyright holder Troubleshooting on __ __ If your HK6800 or HK6900 does not operate as expected first check the items in the following list If you cannot determine the source of the problem contact your dealer or authorized Harman Kardon service representative No lights on the front panel 1 Power cord is not plugged into power outlet 2 Wall outlet or extension cord is faulty Check for poor connections and or blown fuse 3 Breaker on plug strip has tripped Reset breaker The
10. TCHED outlets on the back of the unit When the power to the unit is off the switched outlets are also turned off PROTECT tight This light indicates that the protection circuitry of your amplifier is engaged The light will come on under two circumstances e When you turn the unit on As the unit prepares itself for operation a muting circuit temporarily prevents pops or other noise from reaching your speakers When the unit is ready for operation in approximately 10 seconds the light will go off e When the unit detects a problem This light will come on if your speakers wires are touching causing a short circuit or if your amplifier overheats In the case of overheating a thermal sensor will shut down the unit before damage can occur Depending on the cause and extent of the overheating the unit may take some time to cool down and the protection circuit will remain in operation until the unit is cool enough to operate safely In the case of a short circuit in the speaker wires the protection circuitry will attempt to reset itself every 10 seconds and you may hear a slight click as it does so The protection circuit will remain in operation until the condition is corrected HEADPHONE jack Stereo headphones with a standard 1 4 plug can be connected to this jack You can listen to headphones regardless of whether your speakers are playing To listen to headphones only turn the speaker selector to OFF
11. a special step up amplifier stage The other set of jacks is marked MM for Moving Magnet If you have a regular moving magnet cartridge mounted on your turntable connect the turntable only to the MM inputs as the sizeable volume boost of the MC jacks will cause volume problems and severe distortion Make sure you connect the thin ground wire from your tuntable to the GND post located next to the phono input 7 jacks Failure to connect this ground wire can result in a distracting hum when you play your turntable When only one turntable is used be sure to insert the attached shorting pin plug into the PHONO MM or MC jacks that are not being used Connecting a CD player Attach the patch cord from the CD input jacks to your compact disc player Connecting a tuner Attach the patch cord from the TUNER input jacks to your tuner Be sure you connect an antenna to your tuner otherwise the quality of your AM and FM signal may be poor Connecting a tape deck You can have several tape decks connected to your HK6800 or HK6900 The best choice is to connect your tape deck s to the jacks labeled VCR TAPE 1 or VCR TAPE 2 The IN and OUT connectors on your tape deck correspond to the opposite connectors on the back of your amplifier That is you connect OUT on the tape deck to IN on the amplifier A third tape deck can be connected to the AUX or A V audio connectors if the deck will be used only for playback Connect a patch
12. at The TONE DEFEAT switch causes the source signal to completely bypass the tone control circuitry This results in unaltered completely accurate musical reproduction Video preamplifier switch In keeping with Harman Kardon s emphasis on quality the HK6800 and HK6900 incorporate a switch that enables you to turn off the internal video preamplifier for the purest possible sound quality Electronic function switching The controls on the front panel of the HK6800 and HK6900 switch input and output connections electronically through the use of high fidelity electronic analog switches Harman Kardon s simple and elegant electronic design makes possible complex component configurations In addition this all electronic circuitry ensures that the switches will function quietly and reliably for the life of the unit High voltage high current design Harman Kardon has designed the HK6800 and HK6900 to be able to handle low impedances and unstable speaker loads that would destroy less rugged amplifiers While the HK6800 and HK6900 can easily manage these loads the unit can be set to provide higher voltage and even more power into higher impedance loudspeakers allowing you to use the unit to full capacity Phase correct loudness contour Harman Kardon s exclusive Phase correct loudness circuitry provides a special fixed equalization curve that compensates for the ear s decreased sensitivity at low volumes This special circuitry is u
13. cator light will be lit when the SUBSONIC filter is on TONE DEFEAT switch When TONE DEFEAT is turned on the bass and treble controls have no effect The TONE DEFEAT switch internally bypasses the tone control circuitry resulting in completely unaltered frequency response If you want to use the bass and treble controls turn TONE DEFEAT off The indicator light will be lit when the TONE DEFEAT switch is on O BASS control The BASS control boosts or reduces the low frequency sound level The BASS control affects only frequencies below 300Hz and allows changes of up to 10dB The BASS tone control in some circumstances can help you adjust the overall sound of your system For example boomy room acoustics may be improved with a slight decrease in the bass or the sound of smaller loudspeakers lacking in bass may be improved with a bass boost TREBLE control The TREBLE control boosts or reduces the high frequency sound level The TREBLE control affects only frequencies above 3000Hz and allows changes of up to 10dB The TREBLE tone control in some circumstances can help you adjust the overall sound of your system For example an overly shrill recording or bright room acoustics may be improved by a reduction in the amount of treble BALANCE CONTROL The BALANCE control distributes the sound between the right and left speakers For equal balance in each channel set the control in the center VIDEO SWITCHING
14. cks Simultaneously the A V video signal is switched to the MONITOR OUT jacks To listen to a tape deck use the VCR TAPE MONITOR selector 16 described below RECORD OUT selector This selector controls which program source you can record on the VCR s or tape deck s connected to your unit Whatever source you select is sent to all tape decks connected to your HK6800 or HK6900 so you can record on both decks simultaneously e TUNER In this position the tuner signal is the source you are recording regardless of the position of the FUNCTION selector This permits you to record the tuner signal while listening to a completely different source selected on the FUNCTION selector described above SOURCE When SOURCE is selected whatever source you have selected on the FUNCTION selector will be the source you are recording OFF Leave the selector in this position when you are not recording This will ensure the purest sound quality when you listen directly to a source selected with the FUNCTION selector e COPY 1 TO 2 In this position you are recording from the deck or VCR connected to the VCR TAPE 1 jacks to the deck or VCR connected to the VCR TAPE 2 jacks e COPY 2 TO 1 In this position you are recording to the deck or VCR connected to the VCR TAPE 1 jacks from the deck or VCR connected to the VCR TAPE 2 jacks For example if you want to make a tape recording of a CD set the RECORD OUT selector to SOURCE and set
15. cord from the audio OUT connectors on the tape deck to either the AUX or the A V audio in connectors on your HK6800 or HK6900 Note that the VCR TAPE input jacks can be used for connecting either a tape deck or a VCR or other video source Video equipment connection is described in the following sections Connecting a VCR There are two ways you can connect a VCR to your system One way is to use the A V connectors the other is to use the VCR TAPE 1 and 2 connectors A V Ifyou connect your VCR to the A V inputs you will be able to playback videocassettes but not record on them Connect a patch cord from the audio out connectors on your VCR to the A V audio connectors Then connect a patch cord from the video out connector on your VCR to the A V video connector VCR TAPE 1 and VCR TAPE 2 If you connect your VCR to the VCR TAPE 1 or 2 inputs you will be able to both playback and record videocassettes Connect a patch cord from the audio OUT connectors on your VCR to the VCR TAPE 1 or 2 audio IN connectors Connect audio IN on your VCR to the VCR TAPE 1 or 2 audio OUT connectors Then connect a patch cord from the video OUT connector on your VCR to the VCR 1 or 2 video IN connector Connect video IN on your VCR to the VCR 1 or 2 video OUT connector Be sure you plug the video connector into the jacks that correspond with the audio connectors e g if you ve plugged the audio into VCR TAPE 2 plug the video into VCR 2 You ca
16. lectrical connection with the terminals 2 Twist each lead so that no loose strands stick out 3 Insert about 1 2 inch of the wire that you have identified as positive into the red connector on your right channel speaker Insert the other end of this positive lead into the RIGHT red Speaker 1 terminal on the back of your amplifier Tighten the terminal knob and the wire will be held securely 4 Insert the other lead of the same wire into the black connector on the same speaker Insert the other end of this lead into the GND black Speaker 1 terminal on the back of the amplifier The GND terminal is located directly below the RIGHT terminal 5 Repeat the above procedure for the left speaker 6 Recheck the polarity of both sets of speaker wires making sure that you have connected red to red and black to black If you accidentally connect red to black your speakers will be out of phase While this will not harm your system your speakers will be incapable of producing normal bass response until the connection is corrected Setting the SPEAKER OPERATING MODE switch This switch located in the top right corner of the back panel optimizes the amplifier for the best possible operation with your speakers It is extremely important that you set this switch before playing your speakers First determine the impedance of your speakers The impedance may be noted on the back of the speaker or in the owner s ma
17. mponents for greatly improved linearity and less distortion HCC High instantaneous Current Capability While repoducing dynamic music signals the in stantaneous impedances of nearly all loudspeakers drop to less than a third of the nominal rating These low instantaneous impedances typically require three to six times more current from the amplifier than a nominal 8 ohm resistive load requires The HK6800 and HK6900 integrated amplifiers can provide respectively 70 and 90 amperes of instantaneous current which ensures that your speakers will be able to continually reproduce the entire dynamic range Ultrawide bandwidth Unlike ordinary integrated amplifiers the HK6800 and HK6900 can reproduce musical frequencies ranging from less than 10Hz to more than 100kHz This ultrawide bandwidth improves the accuracy of reproduction of transient signals and ensures phase linearity Low negative feedback This design philosophy is used by the world s most exclusive amplifiers It requires the highest quality internal components and results in an extremely stable amplifier with unmeasureable TIM distortion and absolutely outstanding imaging characteristics Main direct The MAIN DIRECT switch routes the source signal directly to the input of the amplifier bypassing all tone controls and other preamplifier circuitry The signal is therefore attenuated only by the high quality volume control resulting in very pure sound quality Tone defe
18. n watch the picture from a VCR on your television while listening to the sound through your hi fi system If your source is high quality such as Hi Fi VCR output and you can position your television set between your speakers the enhanced sound field will contribute greatly to your video enjoyment Connecting a video laser disc player Connect a patch cord from the audio out connectors on your video disc player to the A V audio connectors Then connect a patch cord from the video out connector on your video laser disc player to the A V video connector Connecting a video monitor Connect a patch cord from the MONITOR OUT video connector to the video IN connector on your TV monitor receiver The video signal that goes to your monitor will come from the A V component you have selected using the FUNCTION selector or from the VCR selected using the VCR TAPE MONITOR selector Connecting other video equipment You can also use the A V audio connectors to connect the audio stereo or mono output of a television tuner or MTS adaptor into your hi fi system Connecting an external power amplifier If you want to use your HK6800 or HK6900 simply as a preamplifier and connect it to an external power amplifier use the PRE OUT connectors in the upper left corner Connect the patch cord from the PRE OUT jacks on the HK6800 or HK6900 to the jacks on your external power amplifier Then connect your speakers to your external power amplifier Opera
19. nput jacks being sure to push the plugs in all the way Loose connection of a plug can cause hum or other intermittent noise Take care to match left and right component plugs with the left and right input jacks on the back of the amplifier Common practice is to use the red plug as right and the white gray or black plug as left Do not wind the component cables with the power cord doing so may degrade the sound quality Power outlets To the right of the back panel on North American and Japanese versions are located three AC power outlets The two outlets labeled SWITCHED are controlled by the power switch on the front of the amplifier When the power is switched off at the front panel button power is also turned off to the SWITCHED outlets You can plug the power cord of a tuner tape deck turntable or other low power component into these outlets When you turn off your amplifier units plugged into the SWITCHED outlets will be turned off simultaneously The SWITCHED outlets have a combined power rating of 200 watts Make sure that the units that you plug into these outlets do not draw more than 200 watts total Check the owner s manuals to determine how much power each unit draws The UNSWITCHED outlet is not controlled by the power switch This outlet receives power as long as the HK6800 or HK6900 is plugged into an AC outlet A unit plugged into the UNSWITCHED outlet can remain turned on even if your amplifier is turned off Thi
20. nual If not call the dealer or manufacturer to find out the impedance HK6800 and HK6900 Connections NON ee eee TO If you are using a single set of 8 ohm speakers set the SPEAKER OPERATING MODE switch to the 8Q position In all other cases use the 4Q position If you are in doubt about the impedance of your speakers use the 4 ohm position since the power amplifier runs cooler in this mode Having this switch set to 8Q if you are using 4 ohm or 6 ohm speakers may result in overheating of the amplifier or failure of an internal fuse If you are using two pairs of speakers it is important to note that the combined total impedance of both sets of speakers must not be less than 4 ohms If the combined impedance is lower you may overload the amplifier resulting in overheating or failure of an internal fuse Two sets of 8 ohm speakers presents a combined total impedance of 4 ohms which is an acceptable load for your amplifier as long as you set the SPEAKER OPERATING MODE switch to 4 ohms If you have questions consult your Harman Kardon dealer before adding a second set of speakers to your system Connecting a turntable Your HK6800 or HK6900 has two sets of PHONO input jacks for connecting turntables One set of jacks is marked MC for Moving Coil If you have a moving coil cartridge that generates at least 120uV mounted on your turntable be sure you connect the turntable to the MC jacks These jacks are internally wired to
21. nusual in that it corrects for midrange phase errors inherent in low frequency loudness equalization The result of this correction is that low frequencies sound clear and natural with no coloration or degradation of stereo imaging Active passive phono section with MM and MC inputs A switch on the front panel of the HK6800 and HK6900 sets up the gain and input impedance of your amplifier s internal circuitry to match the type of cartridge being used on your turntable The HK6800 and HK6900 provide you with both a passive unamplified phono section for use with standard moving magnet phono cartridges and an active amplified phono section for use with moving coil low output phono cartridges You can connect both moving coil and moving magnet cartridge inputs and use the switch on the front panel to select between them Pre out connectors The PRE OUT connectors on the rear panel allow you to use the preamplifier section independently You could connect your HK6800 HK6900 to an external power amplifier and use your HK6800 HK6900 as a preamplifier only Or you could connect an external amplifier to your HK6800 HK6900 and simultaneously use the power amplifier section of your HK6800 HK6900 HK6800 and HK6900 Basics Placement The HK6800 and HK6900 are fully shielded and may be placed on top of or under other stereo components as long as the feet provide sufficient clearance for cooling for the component below Please make sure
22. s 37 5lbs 17 0kg 34 21bs 15 5kg Dimensions Width x Height x Depth Power Supply Power Consumption 17 3 8 x 6 5 16 x 15 15 16 443 x 160 x 405 mm 17 3 8 x 6 5 16 x 15 15 16 443 x 160 x 405 mm AC 120V 60Hz 630W 800VA All specifications and features subject to change without notice 1989 Harman Kardon Inc AC 120V 60Hz 450W 540VA 10
23. s outlet has a power rating of 200 watts Make sure that the unit you plug into this outlet does not draw more than 200 watts Connecting speakers Speaker wires For the best sound quality you may choose to use the highest quality speaker cables you can afford However common zip cord from a hardware store can be used with excellent results if you use the correct gauge thickness The gauge of wire you need depends on the distance the wire must run from your amplifier to your speakers Wire length Gauge of speaker wire Up to 8 feet 18 gauge Up to 12 feet 16 gauge Up to 20 feet 14 gauge Almost any distance Special speaker cable Make sure that the wires for both speakers are the same length even if the distance from each speaker to the amplifier is different Avoid coiling any excess speaker wire near the cables from your components since it may degrade sound quality or cause hum or other noise in the system Speaker connection First examine your speaker wire to determine which lead to use for the positive terminal One of the two leads will be marked in some way such as being copper colored including a strand of yarn with one conductor or having a ridge or a symbol marked on the insulating material Use the marked lead for the positive red terminal both on the speaker and on the back of the amplifier 1 Remove about 3 4 inch of insulation from the end of each speaker wire This bare section of wire will make the e
24. that the HK6800 or HK6900 receives adequate ventilation It should always be located away from heat sources such as radiators fireplaces stoves and other appliances that produce heat Avoid placing the unit in locations that receive prolonged direct sunlight or extremely low temperatures Power source The HK6800 or HK6900 should be connected only to a 120 volt 60 cycle power supply Power cord protection The power cord should be routed in such a way that it is not likely to be walked on or pinched by items laying on or against it Any power cord is susceptible to stress at the point where it joins the plug and the point where it exits from the back of the unit so take care not to fold or bend it excessively at those points Never pull or stretch the cord The amplifier s power cord should be unplugged from the outlet when the unit is left unused for a long period of time Cleaning Use only a clean dry cloth to clean your amplifier Do not use solvents such as alcohol benzine gasoline etc Take care that excessive dust does not accumulate on your unit and that objects are not dropped inside or liquids spilled into the unit Water and moisture Do not operate this amplifier around water e g near a swimming pool sink or in a wet basement Abnormal smells If you detect an abnormal smell or smoke immediately turn the amplifier off and unplug the power cord Contact your dealer or nearest Harman Kardon service center Ser
25. the FUNCTION selector to CD ZO vcR TAPE MONITOR selector The VCR TAPE MONITOR selector enables you to listen to your VCR or tape deck If a VCR is connected to the tape monitor you select the corresponding video signal will be switched to the MONITOR OUT jacks Note that this selector does not select the source for recording It selects only the deck or VCR you are listening to An important use for this selector is for monitoring during recording To monitor during recording select the deck that is recording For listening to one VCR or tape deck while the other deck is recording a different source select the deck that is not recording e 1 In this position you are listening to the deck or VCR connected to the VCR TAPE 1 jacks e SOURCE The SOURCE position turns off the output from your deck or VCR and returns you to the source you have selected on the FUNCTION selector e 2 In this position you are listening to the deck or VCR connected to the VCR TAPE 2 jacks 17 SPEAKER selector You can connect either one or two sets of speakers to your HK6800 or HK6900 This selector enables you to play a single set of speakers by themselves both sets of speakers at the same time or to turn both sets of speakers off for headphone only listening e OFF Select this position to turn off both sets of speakers e 1 Select this position to play the speakers connected to the SPEAKER SYSTEM 1 terminals e 2 Select this position to play
26. tion Turn on the power to all components that aren t connected to the SWITCHED outlets on the back of your amplifier Make sure the volume control on your HK6800 or HK6900 is turned all the way down then turn the unit on This procedure will protect your speakers from turn on thumps transients from the other components Listening to a record 1 Set the FUNCTION selector to PHONO 2 Set the CARTRIDGE selector to MM if the turntable you want to use has a moving magnet cartridge or to MC if it has a moving coil cartridge 3 Set the VCR TAPE MONITOR selector to SOURCE 4 Turn on the turntable and play the record 5 If you notice that the record is warped turn on the SUBSONIC filter to reduce turntable resonance If you hear a hum at average listening levels turn all components off then check to make sure that the PHONO and GND connections on the back of the amplifier are secure Depending on the cartridge type used less hum may be produced without the ground connection Listening to a CD tuner or A V component 1 Set the FUNCTION selector to the appropriate input CD TUNER or A V 2 Set the VCR TAPE MONITOR selector to SOURCE 3 Turn on the component Playing a tape or videocassette 1 Set the VCR TAPE MONITOR selector to 1 if the tape deck or VCR you want to play is connected to VCR TAPE 1 Set the selector to 2 if the unit is connected to VCR TAPE 2 2 Turn on the tape or videocassette Make sure you ret
27. ure that may be of suffi cient 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 impor tant operating and maintenance servicing instruc tions in the literature accompanying the appliance WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPLI ANCE TO RAIN OR MOISTURE 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 ATTENTION POUR PREVENIR LES CHOES ELECTRIQUES NE PAS UTILISER CETTE FICHE POLARISEE AVEC UN PROLONGATEUR UNE PRISE DE COURANT OU UNE AUTRE SORTIE DE COURANT SAUF SI LES LAMES PEUVENT ETRE INSEREES A FOND SANS EN LAISSER AUCUNE PARTIE A DECOUVERT HK6800 6900 Front Panel Controls harman kardon Headphones Main Direct HK6900 integrated Amplifier SPEAKERS VCR TAPE MONITOR RECORD OUT FUNCTION Source Tone Gefeat On Copy 1102 Source Copy 210 DIU Tuner A Treble Balance Phase Cerrect Loudness Subsonic Tune AUX EO Phono GO 4 52 60 VOLUME Video Switching Bass T T T Ei POWER switch The POWER switch turns the unit on and off In North American and Japanese versions this switch also controls power to the SWI
28. urn the VCR TAPE MONITOR selector to SOURCE when you re finished playing the tape deck or VCR Recording on a tape deck or VCR 1 If you want to record from the tuner set the RECORD OUT selector to TUNER If you want to record from PHONO CD AUX or A V set the RECORD OUT selector to SOURCE then set the FUNCTION selector to PHONO CD AUX or A V 2 Start the tape deck or VCR recording 3 To monitor as you record set the VCR TAPE MONITOR selector to 1 if the tape deck or VCR you are recording on is connected to VCR TAPE 1 Set the selector to 2 if the unit is connected to VCR TAPE 2 4 If you are recording from your tuner you can listen to another program source without affecting your recording Simply set the FUNCTION selector to whatever source you want to listen to This selection will not affect your recording from the tuner If you have two decks or VCRs connected you can record on both of them simultaneously since the same signal is routed to both You can also record on one deck and listen to the other by using the VCR TAPE MONITOR selector Copying dubbing from one tape deck or VCR to another 1 Use the RECORD OUT selector to set the direction of the copying For example if you want to play a tape on the deck connected to VCR TAPE 1 and record that tape on the deck connected to VCR TAPE 2 select COPY 1TO2 2 Start the first tape playing and the second tape recording 3 To monitor as you record set the VCR
29. vice Your amplifier should be serviced by authorized Harman Kardon service personnel when e The plug or power cord has been damaged e Objects have fallen into the unit e Liquid has been spilled into the unit e The unit has been exposed to rain e The unit does not operate normally e The unit has been dropped or the cabinet has been damaged Please do not attempt to service your amplifier beyond the troubleshooting suggestions in this manual All other service should be referred to authorized Harman Kardon service personnel Packing material Your box and packing material are custom designed to provide optimum protection for your amplifier Be sure to save the box and packing material in case you need to transport or ship the unit at some time Warranty card Fill out the warranty card and save your sales receipt Your sales receipt is your proof of purchase and you may need it to establish the date on which your warranty begins You will be required to show it for service during the duration of Limited Warranty CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER OR BACK NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL 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 enclos
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