Harman Kardon CD401 User's Manual
Contents
1. used with the MEMORY button to stop tape 4 TAPE COUNTER counter Spro ROL NAAW For digital display of the position in a cassette M tape i The figure changes as the tape runs Cueing for the start of a melody is facilitated by making a note of the counter reading AUTOMATIC REPEAT BUTTONS AUTO e AUTO REWIND BUTTON rewind When this button is set in ON position ipres sed the tape is automatically rewound after playback or recording to the tape end either to the beginning of the tape or to 000 of the TAPE COUNTER indication when the MEMORY button is pressed on e AUTO REPLAY BUTTON repiay When this button is set in ON position pres sed the tape playback automaticaliy starts after rewound either from 000 position of the TAPE COUNTER indication when the MEMORY button is pressed on or from the beginning of the tape When these two buttons are set in ON position pressed the tape is automatically rewound from the tape end to the beginning of the tape or to 000 of the TAPE COUNTER indication when the MEMORY button is pressed ON and then playback starts automatically Automatic rewind and playback are accomplished repeat rs ediy See Automatic Repeat System for details BIAS SELECTORS BIAS MICROPHONE INPUT LEVEL CONTROLS MICROPHONES level For input levet control during recording through microphones The front side knob is for the left channel and the re2. This unit is designed for use at 120V AC Do not con nect the unit to an outlet supplying a higher voltage to prevent fire Handie the AC cord carefully 8 tways hold the plug when disconnecting the AC cord from the outlet Pulling at the cord may cause dis continuity e If the unit is not used for a prolonged period disconnect the plug from the outlet 8 Do not place or drop a heavy material such as furniture on the cord Otherwise the cord may be damaged to cause fire or shock hazard Do not open the cabinet To prevent shock hazard or unexpected trouble do not tamper with internal components for inspection or main tenance Harman Kardon does not guarantee performance degradation resulting from any modification When water ora metal piece enters the unit When water a hairpin or wire accidentally enters the unit immediately extract the AC plug from the outlet to prevent shock or trouble Locations for installation Place this unit on a firm flat base Avoid the following locations Place exposed to direct sunlight or near a heat source Place exposed to excessive moisture Cold place such as near a cooling air outlet Dusty place Place exposed to excessive vibration Poorly ventilated place e 8 6 Place near a TV receiver speaker or other object that generates strong magnetism When piling with other components carefully plan so as not to obstruct heat radiation from a pre maina
3. For playback of a tape Press this button to start playback FAST FORWARD INDICATOR For indication of fast forwarding of a tape FAST FORWARD BUTTON F FWD BP For fast forwarding of a tape STOP BUTTON STOP a For stopping each operation Pressing this button stops playback recording amp PAUSE INDICATOR fast forwarding or rewinding of a tape it also For indication of pause state cancels standby state by PAUSE button opera tion PAUSE BUTTON PAUSE B s For temporary stopping of playback or record R ing in Also press this button to provide standby state for playback or recording With this button pressed both the PAUSE and the PLAY INDICATORS turn on at the same time Then to start p ayback press the PAUSE button again or to start recording press the RECORD button first and the PAUSE button EMORY BUTTON memory r automatic stopping of tape rewinding at a sired position in combination with the RE T button press this button and push the RESET but M 1 during playback or recording to reset the 1 PE COUNTER to 7000 xen the tape is rewound in this state tape wing automatically stops at the position A ere the TAPE COUNTER indicates 000 M p RESET BUTTON reset VIN For resetting the TAPE COUNTER to 000 Press this button to reset the counter to 0007 A rewinding automatically at the desired position when starting recording This button is also
4. and the RECORD INDICATOR goes to continuous illumination 12 To monitor the recording press the TAPE MONITOR switch to MONITOR position The TAPE MONITOR switch button illuminates in green This allows to monitor the recording while it s in progress 13 Press the PAUSE button for temporary stopping of the tape Press it again to restart recording 14 Press the STOP button to stop recording halfway 15 Tape running stops automatically when the tape end is reached and the recording mode is cancelled D Recording through microphones Connect the left and right microphone cords correctly to MICROPHONE jacks Turn the MICROPHONE INPUT LEVEL controls to set the proper input level When record ing only through microphones place the LINE INPUT LEVEL control at its 707 position For mixing recording place the LINE INPUT LEVEL contro at the desired level position Recording from a turntable Press the subsonic filter on your amplifier as required Dubbing without using an amplifier Connect this unit as shown in Connection with tape deck for dubbing and carry out dubbing operation 10 Recording Level Adjustment Adjust the recording level by turning the LINE INPUT LEVEL or MICROPHONE INPUT LEVEL controls meet ing the source of tape recording with observing indication of the LED LEVEL DISPLAY Make adjustment as described below when the sound level is relatively high When using a metal tape 40 20 15 1
5. be boosted if the bias current is less than the rated value This unit aims to obtain a flat frequency characteristic by recording 400 Hz standard signal in the left channel and 12 5 kHz standard signal in the right channel and by ad justing the BIAS FINE TRIM knob so that both channels show the same playback level Operate as follows 1 Insert a cassette tape in the CASSETTE COMPART MENT and piace the BIAS and EQUALIZATION selectors at the position corresponding to the using tape type 2 Press the TAPE MONITOR switch in the MONITOR position 3 Press the RECORD and PLAY buttons together to start the tape With these two buttons pressed tape recording starts 4 Keep the BIAS TONE button pressed 400 Hz signa and 12 5 kHz signa are recorded in the left and right channels respectively 5 Compare LED LEVEL DISPLAY left and right channel readings Turn the BIAS FINE TRIM knob if right channel reading differs from left channel reading so that right channel reading equals to left channei read ing When the right channel level is higher OdB EOE EE EEA TT TT Left channel 400 Hz recording Right channel 12 5 kHz recording hi cut hi boost Turn the knob counterclockwise When the right channel level is lower OdB QdB PoE VEER LLL Eee ETE ETT TN Left channel Right channel 400 Hz recording 12 5 kHz recording AB Z hi cut hi boost Turn the knob clockwise Record Calib
6. tabs of the cassette are not broken out If broken cover the holes with ad hesive tape 2 Turn the LINE INPUT LEVEL controls to the O posi tion and MICROPHONE INPUT LEVEL controls to the MIN position 3 Press the BIAS selector buttons corresponding to the type of the tape 4 Press the RECORD and PLAY buttons at the same time Timer Function By using an audio timer FM broadcasting can be automati cally recorded or the tape can be automatically played back at any desired time while you are out or sleeping Therefore this function can be conveniently used instead of an alarm clock Automatic recording while you are out 1 Connect the AC cords of CD401 tuner and amplifier to the timer 2 Turn the POWER switches of CD401 tuner and amplifier ON and then select a desired broadcasting station 3 Make necessary ad justments in recording levels reffering to the explanation for Tape Recording After that press the TIMER REC button 4 Preset the timer to a desired time With this power supply is turned off except the timer 5 At the preset time power supply to CD401 tuner and amplifier is turned on and then tape recording starts after about 2 seconds At the tape end operation of CD401 stops by the Auto Stop mechanism and then power supply is cut off by the timer Caution Be sure to adjust the VOLUME knob of the amplifier to the minimum setting position so that music or other item being recorded wil
7. 0 5 3 1 o 1 3 5 8 Momentary illumination up to 3 dB is allowable When using a chrome tape 40 20 I5 10 5 3 i 3 45 8 When using a ferrichrome or normal tape 40 20 i5 10 5 3 I 3 5 8 The following adjustments will cause excessive sound dis tortion or tape noise Too low level setting illumination up to about 10 dB 40 20 18 10 5 3 o 1 3 Recording with excessive tape noise wil result Too high levei setting illumination up to 3 dB to 8 dB Recording with excessive distortion will result Record Mute Button If the sound such as CM or narration between programs is desired to be cut off during recording recording function can be invalidated by pressing the RECORD MUTE button At least 3 second silent pause between programs is indis pensable for using the EASS 1 Press the RECORD MUTE button continuously after a prograrn ends No sound is recorded on the tape as long as this button is kept pressed 2 After a few seconds press the PAUSE button and wait for the next program Operation Procedures Bias Fine Trim Feature The optimal recording bias rating of the tape of each brand is somewhat different from that of other brands The bias fine trim feature is provided to enable fine adjustment for such difference The high frequency range tends to be attenuated if the bias current is higher than the rated va ue for a tape while it tends to
8. NORKA Sone er eee oh Nie A ce eer ee Z 3 23 AA PRA SS roa OE SZA r de WRECZ HETES Ea aces z i RCA 5 R 0 oe ee 3 gt E Thanks and congraturation on your choice of the Harman Kardon CD401 Ultrawideband Linear Phase Cassette Deck in order to achieve the best performance of which this high precision unit is capable please be sure to read this owner s manual and use your cassette deck only in accordance with its instructions Keep it in safe place for reference in case you suspect your unit of malfunctioning Contents FeatUrEs ow da GA dbs Sedma d d n a A Andale ad n deze Gas 3 General Instructions ogc ena cars ee 3 Always use at 120 VAC oe 3 Handle the AC cord carefully ananuna ee ee 3 Do not open the cabinet 2 0 eee 3 When water or a metal piece enters theunit 3 Locations for installation 0 02 0 0005 3 Cassette Tape Handling ad ara bce pas Were ie eae hie ee 4 Bolby EzTybe NR System sve Le Z o way oe Peake sdi AGS 4 Components and Their Functions 0 000 5 7 CONNECTIONS i wy hese Se ma labia nd eae oe eS 8 Operation Procedures LLL ee 9 12 Tape Playback pa giv ood sito WALE a hs EN a i 9 Automatic Repeat System aaau aaaea 9 Electronic Auto Search System EASS 9 Tap6 Recording ua ua er eae a aa dom E 4 aE A 10 Recording Level Adjustment l una auaa zs 10 Record Mute Button ze ee te e ee 10 Bias Fine Tr
9. al powder or dust Clean these parts from time to time so as to enjoy perfect tape sound reproduction Before cleaning open the CASSETTE COMPARTMENT door Use a cotton swab slightly wetted with diluted an hydrous alcohol and clean the recording and playback combination head erasing head capstan and roller which come into direct contact with the tape Do not wet the cotton swab with too much alochol Tape playback shall be started after thorough evapora tion of alcohol The recording and playback combination head erasing head and capstan will be magnetized graduaily Since the magnetism causes noise generation and degrada tion of high frequency range characteristic be sure to demagnetize these parts with a head eraser
10. ar one is for the right channel The knobs turn simultaneously when turned i normally JALIZATION SELECTORS UALIZATION s the button meeting the type of the tape playback These buttons are not effective ecording MICROPHONE JACKS MICROPHONES NS W recording microphones N For connection of Use tow impedance microphones TO cewmod_repiay vake BB NIN Press the button meeting the type of the tape for recording If no button is pressed the RE CORD INDICATOR does not turn on and recording cannot be accomplished buttons are not effective in tape playback BIAS FINE TRIM KNOB BIAS FINE TRIM For setting of the optimal bias for the tape to be used See Bias Fine Trim Feature for details These BIAS TONE BUTTON bias ee rk A For setting of optima bias for each tape While this switch is kept pressed 400 Hz signa N is recorded in the left channel and 12 5 kHz in N the right channel See Bias Fine Frim Feature A for details 6 RECORD CALIBRATION TONE BUTTON al record ca tone For recording level calibration according to the type of the tape to be used When this switch is kept pressed 400 Hz signal is recorded on the tape Make adjustment by operating the RECORD CALIBRATION con trols during reproduction of this signal recorded on the tape so that the LED LEVEL DISPLAY may indicate 0 dB See Record Calibration Fea ture for details LED LEVEL DISPLAY PEAK For c
11. ed portion between musics and automatically repeats cueing Operate as fotlows 1 Press the ELECTRONIC AUTO SEARCH switch The mode is automatically switched to fast ONA When the start of the next music is me sensed the mode is automatically switched to playback and the music is played for about 10 seconds 2 If the music is the desired one press the PLAY button and the EASS is cancelled and tape playback starts If the PLAY button is not pressed the mode again re turns to fast forwarding and cueing is repeated 3 The EASS is automatically cance ied when the tape end is reached Notes 8 The EASS is set by pressing the ELECTRONIC AUTO SEARCH switch when the tape is played back or stop ped 8 The EASS mode is cancelled when any button RE CORD REWIND PLAY FAST FORWARD STOP or PAUSE is pressed e if the non recorded interval between musics is less than about 3 seconds cueing may be failed When very tow level signal such as pianissimo continues stopping at the start of the succeeding high level signal may occur Non recorded intervals a more than 3 seconds 77 HE He Ea Playback gt Press the PLAY button within this period to cause continuous playback Operation Procedures Tape Recording 1 Turn on the POWER switch The POWER INDICA TOR illuminates 2 Press the EJECT button to open the CASSETTE COM PARTMENT door and insert a cassette tape correctly Incorrect inser
12. h standard plugs When recording with one microphone connect it to the left or right MICROPHONE jack whichever you like In either case monaural recording on both channels occurs e insert plugs fully Imperfect insertion may cause noise or sound reproduction failure AC outlet When headphones are connected to the HEADPHONES jack tape playback sound or recorded monitor sound can be enjoyed without connecting an amplifier The sound volume through the headphones can be ad justed by the OUTPUT LEVEL control For tape play back be sure to set the TAPE MONITOR switch in the MONITOR position without fail Use headphones with the standard connecting plug Operation Procedures Tape Playback 1 Turn on your amplifier turn the volume control to the minimum level and select the tape monitor function on the amplifier according to its owners manual 2 Press the POWER switch and the POWER INDICA TOR illuminates 3 Press the EJECT button to open the CASSETTE COM PARTMENT door and insert the recorded cassette tape correctly in the compartment Incorrect insertion may cause failure in door closing or playback 4 Press the EQUALIZATION selector according to the type of the using tape 5 Press the DOLBY NR ON OFF selector for a tape re corded by using the Dolby NR system Select the B or C NR type by the NR TYPE selector 6 Press the TAPE MONITOR switch in the MONITOR position 7 Press the PLAY bu
13. ibration Feature for details B OUTPUT LEVEL CONTROL OUTPUT LEVEL For control of the output level during playback or monitoring of the recording sound It also control the volume of the sound moni tored through headphones DOLBY NR SYSTEM SELECTOR DOLBY B C NR NR ON OFF SELECTER NR For recording or playback using the Dolby NR system Press this selector to use the Dolby NR sys tem The green DOLBY NR INDICATOR for B type or the yellow one for C type illuminates according to the NR TYPE selector position Press this selector again to invalidate the Dolby NR system NR TYPE SELECTER TYPE For selection of Dolby 8 or C type NR system Depress this selector to select the Doiby C type NR system Press it again and the B type is selected 6B HX PRO INDICATOR HX PRO For indication that recording is in progress using HX PRO system HEADPHONES JACK HEADPHONES For connection of stereo headphones The sound vo ume can be adjusted by the OUT PUT LEVEL control For tape playback be sure to set the TAPE MONITOR swtich in the MONITOR position without fait TAPE MONITOR SWITCH tape monitor When the MONITOR position is selected signal being recorded playback signallcan be heard The button goes on indicating that the MONI TOR position ts selected When the SOURCE position is selected signal before recording recording input can be heard Check the source sound and playback s
14. im Feature sss aaa aaa aaa 11 Record Calibration Feature 2 0 0 ee 1 HX PROSYSTEM a cho kode alate ln eee Sah y 12 Erasing the Recorded Signals aaan aaa 11 12 TiMerFUuNCHON S mrina eo ae ete ate DAME Nawa SS K N A 12 Maintenance 65 nie a AS we ah Bae Paka ee ub ak 13 Head Gledni gi wns reee Gato eee ea ee da 13 WARNING TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE Features e Dolby C Type Noise Reduction System In addition to the standard Dolby B type NR system your deck provides the ultimate in noise reduction systems Dolby C Even with normal cassette tapes the trailing off of the high frequency responce is dramati cally improved and with metal tapes recorded at the full 0 dB level the frequency is flat up to 15 20 kHz e HX PRO System Since HX Professional system keeps Active Bias con stant it allows natural sounding recordings of the low frequency range When you record high levet high fre quency sound in a conventional way frequency charac teristic will be reduced due to self demagnetization HX PRO works so as to reduce this self demagnetization far better so that higher level recording may be capable Therefore HX PRO gives normal tape almost equal per formance of metal tape e Electric Auto Search Function This makes it easy to find the head portion of each item in the music tape Metal Tape Compatible Tape selector switch for METAL positi
15. ing of the start of a music When this switch is depressed the ELEC TRONIC AUTO SEARCH INDICATOR illumi nates and a start of each music is automatically searched so as to enable sequential playback of the musics recorded in a tape See Electronic Auto Search System for details EJECT BUTTON EJECT For opening the CASSETTE COMPARTMENT door The soft eject mechanism opens the door slowly when this button is pressed Caution Never press this button while tape running Be sure to press the STOP button before pressing the EJECT button RECORD MUTE BUTTON REC MUTE For providing a soundless interval during re cording To cut off undesirabie sound between melodies keep this button pressed until the next melody starts No sound is recorded as long es this but ton is kept pressed RECORD INDICATOR For indication of recording state RECORD BUTTON RECORD For recording on a tape REWIND INDICATOR Press this button after pressing the PAUSE indira TER button to provide standby state for recording POPCORN Ere ne The RECORD INDICATOR blinks and the PAUSE and PLAY INDICATORS illuminate REWIND BUTTON lt 4 lt REW Recording starts when the PAUSE button is For rewinding of a tape at a high speed pressed again The RECORD INDICATOR goes to continuous illumination and the PAUSE PLAY INDICATOR INDICATOR extinguishes For indication of tape playback PLAY BUTTON PLAY gt
16. l not be reproduced by the speakers Automatic tape playback for morning wake up 1 Connect the AC cords of CD401 tuner and amplifier to the timer 2 Turn the POWER switches of CD401 and amplifier ON 3 After setting a cassette tape in the CASSETTE COM PARTMENT press the proper EQUALIZATION selector button and adjust the OUTPUT LEVEL control 4 Press the TIMER PLAY button The TAPE MONITOR switch must be in the MONITOR position 5 Preset a desired time on the timer Caution For normal operation press the TIMER OFF button without fail Caution Do not tamper with the adjusting knobs marked DOLBY NR PLAYBACK CALIBRATION on the rear panel Since they have been set to the standard Dolby level at the factory tampering with these knobs will disable correct recording and playback through the Dolby NR systems If playback sound through these systems is not proper ask your retailer or send the unit back to Harman Kardon for adjustment Maintenance When the unit gets dirty wipe it with a soft dry cloth If heavily contaminated wipe it with a soft cloth soaked with mild soapy water and then wipe with a dry cloth Never use alcohol thinner benzine or other volatile agent since the painting may be darnaged Head Cleaning Drop out degradation of frequency characteristic or wow amp flutter may be caused when the recording and playback combination head capstan and roller get dirty with magnetic materi
17. lear indication of the recording or play back evel HX PRO SWITCH HX PRO Press the switch when recording in HX PRO system See HX PRO System for details MPX FILTER SWITCH mpx filter Z For cutting the multiplex noise during record ing of an FM stereo broadcasting program by 4 using the Dolby NR system Depress this switch to invalidate the MPX filter function N 134 DOLBY NR INDICATORS Dolby NR B C For indication of the validated Dolby NR system type TIMER SWITCHES TIMER These switches are used to automatically start recording or playback in combination with an audio timer REC Switch For automatic recording PLAY Switch For automatic tape playback OFF Switch When audio timer is not used See Timer Function for details LINE INPUT LEVEL CONTROL LINE LEVEL For input level contro during recording from an external component The front side knob s for the left channel and the rear one is for the right channel The knobs turn simultaneously when turned normally FADER KNOB FADER For fade in and fade out function to satisfy more variety in recording This makes it easy for you to start and or end an item in recording and to make the silent pauses RECORD CALIBRATION CONTROLS record ca Variable resistors to calibrate the recording level to 0 dB according to the type of the tape to be used Make adjustment with a thin screw driver through the hole See Record Cal
18. mplifier or mainamplifier Use of a Harman Kardon audio rack is re commended Always disconnect the plug from the outlet before making connections with other components Cassette Tape Handling e Be sure to remove the cassette tape from the cassette compartment after the end of operation to keep the tape quality and maintain the deck performance for a long time Store cassette tapes off from a strong magnetic field such as near a TV set amplifier and speakers to prevent adverse effect on the recorded sound Before a cassette tape is played back or recorded be sure to eliminate tape slackness A slackened tape if used may cause jamming in the tape running mechanism Remove tape slackness by winding with a pencil Dolby C Type NR System Your deck provides the Dolby C Type Noise Reduction system which is said to be the ultimate in noise reduction system Also you can work the standard Dolby 8 Type Noise Reduction System by changing the B C select switch The Dolby NR System is one of the methods for reducing the noise that is created during the play back of a tape and is now widely and internationally used The noise which this system reduces largely emits from the tape itself and this system cannot reduce the noise which comes from the program which is being recorded Therefore in order for the Dolby NR System to function more effectively it is important to avoid recording from signals either from re cords or FM
19. on is added to assure the best performance of metal tape Since the tape selector switches are provided for BIAS and EQUALIZATION independently METAL CrO2 FeCr LN the best performances of each tape can be assured General Instructions e 3 Head 2 Motor Mechanism A 3 head configuration is used to allow monitoring of the recording while it is in progress Two seperate motors are used one for the capstan and one for the two reel drives in a mechanisrn that boasts extremely high precision and highly reliable tape transport for low wow and flutter e Feather Touch Operational Controls Semiconductor logic contro gives pleasant feather touch contro of the mechanism Direct changes are possible between for instance piay back and fast for ward or rewind Again a remote control can be availa ble e Memory Auto Repeat Function When playing back the same item repeatedly or the item just recorded from its beginning the tape can be re wound to the desired position readily e Electrical Tape Counter An electrical digital display is used for the tape counter ft is both easier to see and more accurate counter of start and stop position because of its faithful to tape progress compared with analog type Noise reduction system manufactured under license from Dolby Laboratories Licensing Corporation Dolby and the doubie D symbois are trademarks of Dolby Laboratories Licensing Corpora tion Always use at 120V AC
20. ound by pressing the switch while recording to check to be sure that source sound is correctly recorded Be sure to place the switch in the MONITOR position while tape playback METER BALLISTICS SELECTOR meter ballistics For selection between norma and slow LED LEVEL DISPLAY recovery time amplifier use LOW INPUT jacks Connections Always disconnect the AC cords connected to mains outiets before making connections between components Use the attached connection cords Connect the plugs correctly to left and right channel jacks Connection with amplifier i i AC outlet INPUT OUTPUT LOW HIGH When connected to pre main Lobe A OELH LA When connected to such as a stereo radio cassette recorder having high output signal level use HIGH INPUT jacks NOTE LOW and HIGH INPUT jacks cannot be used simultaneously Connection with tape deck for dubbing Z aap oao cs DOG nec noo ee 0 em sm ea ma gt en sas aan a ua eco OOOO MO LO Recording to CD401 an 8 N o O 2200 RE Left microphone Right microphone Use low impedance microphones 60082 in the stan dard The recording level can be adjusted by the MICRO PHONE INPUT LEVEL controls Turn the LINE INPUT LEVEL controls to the 70 position when only microphones are used For mixing adjust their positions as desired Use microphones wit
21. radio that contain a lot of noise i e it is important to choose signals with as little noise as possibie Principle Any magnetic tape used on a tape recorder contains native noise ln particular among these noises the middle and high frequency noises which we can easily pick up by hearing are called hiss noises and they are said to be caused by the size of magnetic particles on the tape Hiss noises decrease if the magnetic particles are small and also decreases if the tape is played at a higher speed In other words the high speed of the tape playing and the small size of the magnetic particles produce the same effect as regards the hiss noise In this respect a Cassette tape played at a low speed will produce more hiss noise e f the sound recorded on the tape is desired to be pro tected from accidenta erasure remove the erase preven tion tabs With these tabs broken out accidental erasure can be prevented even if the RECORD button is inadvert ently pressed Remove the tab with a screwdriver U 8 fit is later desired to record on a cassette tape protected in this way cover the holes with adhesive tape Function of the Dolby Noise Reduction When the recording input signals are lower than the stan dard ievel those middle and high frequency sounds among those signa s are gradually strengthened and recorded The signals will return to the original state if a tape is played back opposite to the
22. ration Feature Each tape has different sensitivity As a result the playback level may be deviated from the LED LEVEL DISPLAY reading The record calibration feature adjusts the LED SUS En n EL LEVEL DISPLAY reading to the specified value for each tape so as to enable proper recording and playback level setting This is especially important for recording with the Dolby NR system Operate as follows 1 lnsert a cassette tape of the type which is most fre quently used into the CASSETTE COMPARTMENT 2 Press the BIAS and EQUALIZATION selectors ac cording to the tape type 3 Press the TAPE MONITOR switch in the MONITOR position 4 Press the RECORD and PLAY button together to start the tape and keep pressing the RECORD CALBRA TION TONE button 5 If the LED LEVEL DISPLAY shows O dB no adjust ment is required 6 If the indicated leve is above or below O dB adjust the RECORD CALIBRATION controls If the ievel indication is lower than O dB OdB OdB a a LL TT ESETE E TT ETT record cal T m Turn the controls clock wise with a thin screw driver if the level indication is higher than 0 dB OdB record cal Sztn ez ig sia Turn the controls coun terclockwise with a thin screwdriver Note Adjustment to 0 dB may be failed if the used tape is old or a poor in quality 11 Operation Procedures HX PRO System By varying the bias leve to compensate for the dif fe
23. rent characteristics of the input signal Active Bias is kept constant so that this allows natural sounding recordings of the low frequency region Also much higher levels of high frequencies can be recorded If we consider specific sectors of the frequency range then if a signal source only contains high frequency components the HX PRO will detect this and reduce the bias from the oscillator to the optimum bias for the signal On the other hand no changes in bias level will be made for signal sources that contains only low frequency sounds However when low frequency sig nals contain occasional admixtures of high frequency signals the HX PRO will reduce the bias changing only high frequency bias levels while keeping lower frequency bias level constant The new system there I fore not only offers an improvement at high frequen cies but also ensures the optimum bias at low fre guencies toa Advantages of the HX PRO 1 Gives performance almost equal to metal tape for normai tape 2 Outstanding treble dynamic range 3 Adjustment to left and right channels can be made independently 4 All kinds of tape from normal through metal are suitable Erasing the Recorded Signais When a new recording is made on a recorded tape the recorded sound on that part of the tape is automatically erased To erase the recorded sound on the tape without recording operate as follows 1 Be sure that erase prevention
24. tion may cause failure in door closing or recording 3 Press one of the BIAS selector buttons according to the type of the using tape If no button is pressed record ing is impossibie and the RECORD INDICATOR does not illuminate 4 Set the TAPE MONITOR switch in the SOURCE position 5 Adjust the recording level following the instructions provided in Recording Level Adiustment by tuming the LINE INPUT LEVEL controls Turn the MICRO PHONE INPUT LEVEL controls to MIN position To record through the Dolby NR system depress the NR ON OFF selector and select the B or C type by operating the NR TYPE selector Check the selected type by illumination of the TYPE INDICATOR The B TYPE INDICATOR illuminates in green color and the C TYPE INDICATOR in yellow 7 When recording sounds using HX PRO system press the HX PRO switch When it is pressed in the ON position the red HX PRO INDICATOR turns on 8 To record an FM stereo broadcasting program with the Dolby NR system be sure that the MPX FILTER switch is on This switch is off when depressed 9 Press the RESET button to reset the TAPE COUNTER indication to 0007 10 Press the PAUSE button The PLAY and PAUSE INDICATORS illuminate Then press the RECORD button The RECORD INDICATOR starts blinking in red color to show standby state for recording The tape does not run in this state 11 Press the PAUSE button again to start recording The PAUSE INDICATOR extinguishes
25. tton The PLAY INDICATOR illuminates and the tape starts to be played back 8 Gradually turn the OUTPUT LEVEL control and the vo ume control of your ampiifier until the playback sound is heard 9 Press the PAUSE button for temporary stopping of the tape Press it again to restart tape playback 10 Press the STOP button to stop tape playback ha fway 11 Tape running automatically stops when the tape end is reached Automatic Repeat System CD401 is equipped with convenient AUTOMATIC RE PEAT function which automatically NE the tape after recording or playback to a desired FE j point AUTOMATIC REWIND function and automatically starts tape playback from the rewound point AUTOMATIC REPLAY function Automatic rewind 1 After inserting a cassette tape in the CASSETTE COM PARTMENT press the AUTO REWIND button in the ON position Start tape playback or recording 3 To rewind the tape to a desired point press the RESET button at such point to reset the TAPE COUNTER in dication to O00 and then press the MEMORY button N When rewinding the tape to the beginning of the tape press the MEMORY button again to release it 4 At the tape end the tape is rewound to 000 position or to the beginning of the tape according to the MEM ORY button setting and then stops Automatic replay 1 After inserting a cassette tape in the CASSETTE COM PARTMENT press the AUTO REPLAY button in the ON position 2 Start tape pla
26. way it was recorded i e if it is played back with middle and high frequency sounds above the standard level being gradually weakened At the same time tape hiss sounds which are middle and high frequency noises created during the play back are reduced accord ingly as the signals become smaller Noise reduction is achieved in this way While the Dolby B Type NR System has only the noise re duction capacity of the noise level of 10 dB the Dolby C Type NR System has a capacity of 20 dB This C Type NR System in comparison has an improvement in its function in the high frequency range so that it can be used for 0 dB recording The Dolby C Type NR System assures enough dynamic range and SN ratio to record a HI FI program source oe oe T 40 30 dB 20 10 i 20 50 100 200 i J 500 1000 2000 5000 10000 20000 Hz NOISE SPECTRA S O SRE oe S 2 se Seat Components and Their Functions CASSETT COMPARTMENT c POWER INDICATOR For indication of power supply to this unit E t N 1 POWER SWITCH POWER N v For power turning on and off r v When this switch is pressed with the AC cord piugged to an AC outlet the POWER INDICA TOR illuminates ELECTRONIC AUTO SEARCH INDICATOR For indication of functioning of the electronic auto search system ELECTRONIC AUTO SEARCH SWITCH ELECTRONIC AUTO SEARCH For quick cue
27. yback or recording 3 To start tape playback from a desired point press the RESET button at such point to reset the TAPE COUNTER indication to 0007 and then press the MEMORY button When replaying the tape from the beginning press the MEMORY button again to release it 4 When the REWIND button is pressed while tape play back or recording or at the end of the tape tape re winding starts 5 At the TAPE COUNTER indication 0007 or at the beginning of the tape tape rewinding stops and tape playback automatically starts again EASS SON De Fest Fast forwarding Playback Fast sE Fad Fast Far Automatic repeat 1 After inserting a cassette tape in the CASSETTE COM PARTMENT press both the AUTO REWIND end the AUTO REP AY buttons in the ON position 2 Start tape piayback or recording 3 To repeat tape playback from a desired point press the RESET button at such point to reset the TAPE COUNTER indication to 0907 and then press the MEMORY button When repeating from the beginning of the tape release the MEMORY button by pressing it again 4 At the end of the tape while tape playback or record ing the tape is automatically rewound the beginning of the tape or to 000 position of the TAPE COUNT ER indication according to the MEMORY button setting and then tape playback starts automatically This cycle is repeated until such setting is released Electronic Auto Search System EASS The EASS detects the non record
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