CASSETTE DECK

SD4050
SD4050 Dual cassette deck
The SD4050 dual cassette deck offers the home recording enthusiast true versatility from its autoreverse twin-deck for continuous play and record from one loaded tape to another. With advanced features like 'one-touch' dubbing (with 'hi-speed' option), pitch control for changing key and tempo, peak-level readout, fine bias tuning and synchro start for tape and CD, it ensures accurate, professional-style home recordings. The profiled combination heads and antiresonant front panel guarantee faithful reproduction with a wide dynamic range and minimal wow and flutter.
Preliminary Specifications

FEATURES

Tape transports (full logic) Auto Reverse DC Servo Controlled Super-hard Permalloy Heads Dolby B, C 2-Speed synchro reverse Dubbing MPX filter Dolby HX Pro Automatic Tape Selector Synchronized CD Recording Quick Music Search Auto Continues Play Timer Record & Play 2

IN/OUTPUTS

Line In Line Out 2 2

AUDIO SPECIFICATIONS

Rewind Time S/N (3% THD) Recording Bias Frequency Response Channel Separation Wow & Flutter 110 sec., C-60 cassette > 74 dB 100 kHz 25-18kHz, +/- 3 dB > 40 dB 0.09% WRMS, +/- 0.1%

GENERAL

Color: Black / Gold / Platinum Metal Front Panel Remote Control Power Consumption Detachable Power Cable Max.Dimensions (W x H x D) Weight 440 x 116 x 230 mm 3.9 Kg /-/ na -
Design and specifications are subject to change by Marantz without notice

www.marantz.com

Features:

Benefits:

Twin auto reverse deck Dolby B/C & HX-pro Hi-speed dubbing One touch recording Pitch control D.Bus
Continuous playing of your favorite tape by using the two decks. Even switching side is fully automatic! Hiss free recordings and playback from cassette Easy copying at twice the normal speed, using only half the time normally needed Maximum ease of use Speed adjustment of the cassette tape make the deck ideal for mixing and editing applications Flexible system integration and intelligent system adaptation

Technological glossary:

Easy recording for your benefit The Marantz SD4050 offers a total solution for all your tape playback and recording needs with it's double auto-reverse cassette decks. The cassette deck can play three hours of nonstop music and offers superb recording facilities. Twin auto reverse deck The twin auto reverse tape deck provides continuous play and copying from one tape to another. By using the Hi-speed dubbing functionality, the copying time will be reduced to half of the normal copying time. Making a copy of your favorite music was never this easy. Just place the tapes and activate the recording. Your cassette deck will do the rest. Pitch control For adjustment of the tape speed and tonal balance, pitch control has been incorporated in the cassette deck. Dolby B/C & Dolby HX-pro Dolby B/C provide a dramatic decrease of the amount of noise. To optimize the recording and playback, this selection should be used during recording as well as during playback. Hx pro feature provides increase of dynamics and is switched on by default. D.Bus To optimize equipment in terms of ease of use, Marantz has designed the D.Bus system. Individual devices inform each other in order to automatically tune to the customers demands. Also received remote control commands are communicated via this bus. This enables equipment without IR-receiver, like a cassettedeck or tuner, to be controlled via a Marantz Remote control. The Marantz D.Bus in addition allows synchronised recording between analogue Marantz components like CD players and tape deck but also between our CD players and CDRecorders. It makes sure that not data is lost by a simultaniously start and stop of both original and copy.

Model SD4050 User Guide Cassette Deck

IMPORTANT TO SAFETY

WARNING:
TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
FOR U.S.A. & CANADA MODEL ONLY

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.

ENGLISH FRANAIS

CAUTION:
1. Handle the power supply cord carefully Do not damage or deform the power supply cord. If it is damaged or deformed, it may cause electric shock or malfunction when used. When removing it from wall outlet, be sure to remove by holding the plug attachment and not by pulling the cord. 2. Do not open the top cover In order to prevent electric shock, do not open the top cover. If problems occur, contact your MARANTZ DEALER. 3. Do not place anything inside Do not place metal objects or spill liquid inside the cassette tape deck. Electric shock or malfunction may result. Please, record and retain the Model name and serial number of your set shown on the rating label. Model No. SD4050 Serial No.
POUR LES MODELES AMERICAINS ET CANADIENS UNIQUEMENT

ATTENTION

POUR PREVENIR LES CHOCS 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.
RISK OF ELECTRIC SHOCK DO NOT OPEN
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 of the persence of uninsulated dangerous voltage within the products 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 of the persence of important operating and maintenance (servicing) instruction in the literature accompanying the appliance.
READ BEFORE OPERATING EQUIPMENT
This product was designed and manufactured to meet strict quality and safety standards. There are, however, some installation and operation precautions which you should be particularly aware of. 1. Read Instructions All the safety and operating instructions should be read before the appliance is operated. Retain Instructions The safety and operating instructions should be retained for future reference. Heed Warnings All warnings on the appliance and in the operating instructions should be adhered to. Follow Instructions All operating and use instructions should be followed. Water and Moisture The appliance should not be used near waterfor example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, and the like. Carts and Stands The appliance should be used only with a cart or stand that is recommended by the manufacturer. 12. PowerCord Protection Powersupply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the appliance. 14. Cleaning The appliance should be cleaned only as recommended by the manufacturer. 15. Power Lines An outdoor antenna should be located away from power lines. 16. Outdoor Antenna Grounding If an outside antenna is connected to the receiver, be sure the antenna system is grounded so as to provide some protection against voltage surges and builtup static charges. Article 810 of the National Electrical Code, ANSI/NFPA 70, provides information with regard to proper grounding of the mast and supporting structure, grounding of the leadin wire to an antennadischarge unit, size of grounding conductors, location of antennadischarge unit, connection to grounding electrodes, and requirements for the grounding electrode. See Figure A. 17. Nonuse Periods The power cord of the appliance should be unplugged from the outlet when left unused for a long period of time. 18. Object and Liquid Entry Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings. 19. Damage Requiring Service The appliance should be serviced by qualified service personnel when: A. The powersupply cord or the plug has been damaged; or B. Objects have fallen, or liquid has been spilled into the appliance; or C. The appliance has been exposed to rain; or D. The appliance does not appear to operate normally or exhibits a marked change in performance; or E. The appliance has been dropped, or the enclosure damaged. 20. Servicing The user should not attempt to service the appliance beyond that described in the operating instructions. All other servicing should be referred to qualified service personnel.

Never disassemble or modify the set in any way. Ne jamais dmonter ou modifier lappareil dune manire ou dune autre.
TABLE OF CONTENTS FEATURES
FEATURES. 5 CONNECTION. 5 NAMES AND FUNCTIONS OF PARTS. 6, 7 CASSETTE TAPES. 7 AUTOMATIC TAPE SELECTION. 8 PLAYBACK. 8 RELAY PLAY. 9 RECORDING. 9 PROPER RECORDING LEVEL. 10 REC MUTE AND REC PAUSE BUTTON. 10 DUBBING. 10 SYNCRO REVERSE DUBBING. 11 TAPE COUNTER. 11 DOLBY B AND C NOISE REDUCTION SYSTEM. 11 DOLBY HX PRO HEADROOM EXTENSION SYSTEM. 12 MAINTENANCE. 12 REMOTE CONTROL. 13 USING THE REMOTE CONTROL UNIT. 13 TROUBLE SHOOTING. 14 SPECIFCATIONS. 14 Computer Controlled Mechanism Dolby HX-Pro Headroom Extension System Dolby B & C Noise Reduction Systems Dual Computing Tape Counter with 4-Digit Readout FL Peak Level Meters Auto Tape Selector 2-Speed Dubbing Relay Playback Remote Controllable Pitch Control Function (DECK A)

CONNECTION

Leave your entire system (including this cassette deck) turned off until all connections between the deck and other components have been completed.

Receiver or amplifier

PB REC

SD4050

REMOTE CONTROL

TAPE-1

WHITE IN OUT WHITE

IN OUT LINE

Power supply outlet.
Connecting the Deck to an Amplifier Before connecting the deck to your amplifier, please review your amplifiers instruction manual. Use the white plugs for the left channel and red plugs for the right channel. Tape Dubbing Many stereo amplifiers and receivers have tape dubbing circuitry so that tape duplication can be performed between two or more tape decks. Review your amplifiers instruction manual for a full explanation of this mode of operation. Connecting Headphones To listen through headphones, plug your headphones into the PHONES jack. REMOTE CONTROL For the operation of the system remote control. The following functions of this Marantz product can be remotecontrolled. Play, FF, REW, Stop, Rec, Rec Pause, Rec Mute, Counter Reset, Direction, Deck A, Deck B.
However, the remote-controllable functions are dependednt on the type of remote control used. If this Marantz product is to be remote-controlled by a Marantz Learning Remote Control, please refer to the Command Code Table of page 12 at the end of this manual. Installation Precautions If the deck is placed near an amplifier, TV or tuner, noise (induced hum) or beat interference may result, especially during FM or AM reception. If this occurs, place the deck further away from other components or reorient its position.

Caution

A mechanical sound is heard the first time the power switch is set to ON after the power cord is plugged into an outlet. This is the sound of the cassette mechanism being set to the proper operating state, and is normal. (When using an AC outlet on a receiver or amplifier, used an UNSWITCHED outlet.)
Thank you very much for purchasing the MARANTZ component stereo cassette tape deck. MARANTZ proudly presents this advanced tape deck to audiophiles and music lovers as a further proof of MARANTZs non-compromising pursuit of the ultimate in sound quality. The high quality performance and easy operation are certain to provide you with many hours of outstanding listening pleasure.
Please check to make sure the following items are included with the main unit in the carton: (1) Operating Instructions. 1 (2) Stereo audio cable. 2 (3) Remote control unit (RC455SD). 1 (4) AA (R6) Batteries. 2
NAMES AND FUNCTIONS OF PARTS

C B OFF OFF PLAY

!2 e !1 y !3

COUNTER RESET

DOUBLE CASSETTE DECK SD4050

DOLBY NR

TIMER REC

SYNC REV

DUBBING SPEED HIGH NORMAL

REC LEVEL

RECORD

REC MUTE

REV. MODE

AUTO REVERSE

AUTO TAPE SELECT/HIGH SPEED DUBBING

CCONT. PLAY MIN EJECT

POWER ON/OFF

PHONES EJECT

PITCH CONTROL

B REC/PLAY

i !4 !0 w

Power Switch (POWER)

Press once to turn the power to deck on, and once more to turn the power off. The deck remains in a standby (non-operative) mode for approximately 2 seconds after it is switched on.
Dolby NR Switch (DOLBY NR)
To record or playback tapes with Dolby B or C-type noise reduction, set this switch to B or C. Turn it OFF when not using the Dolby NR system.

Eject Button (

EJECT)
Reverse Mode Switch (REV MODE)
Select the tape of tape transport. The reverse mode can be set to (one side), (both side), (continuous playback).
Press this button to open the cassette compornent cover, When the tape is running, press the STOP ( ) button first to stop tape transport, then press the Eject button.

Counter Reset Button (COUNTER RESET)
Press this button to reset the tape counter to zero.
Dubbing Speed Buttons (DUBBING SPEED)
Pressing the NORMAL button starts regular speed dubbing from deck A to deck B. Press the HIGH button to perform dubbing at double speed. See page 10.

Tape Transport Buttons

(PLAY) (PLAY) (STOP) (REW) (FF) (REC) (Deck B only) REC MUTE (Deck B only) (PAUSE) (Deck B only) Forward Play Button Reverse Play Button Stop Button Fast Rewind Button Fast Forward Button Rec Button Press to Forward playback tape. Press to Reverse playback tape. Press to stop the tape in any mode. Press for fast rewind. Press for fast forwarding Press the REC button and PLAY button simultaneously to start recording. If only the REC button is pressed, the deck enters the Recording Pause mode. Pressing this button in the Recording Pause mode will start Auto Rec Mute, and a 4-second silent space is recorded onto the tape. See page 10. Press this button to enter the recording pause mode from the recording or recording mute mode. This button can only be used during recording. See page 10.

Rec Mute Button

Rec Pause Button

i o !0

Rec Level Control (REC LEVEL)
This knob adjusts the recording input level. It affects the level in both channels. See page 9.

Remote Sensor

Each of PLAY, FF, REW, STOP, REC, REC PAUSE, REC MUTE, DIRECTION, COUNTER RESET, DECK A and DECK B functions can be remote controlled with wireless handset. NOTE: Note that only the A deck can be operated with remote control units which have no A/B selector button.
Cassette Compartment Cover
If the cover is not closed completely, the tape transport buttons will remain inoperative.

Headphone Jack (PHONES)

For private music enjoyment without disturbing others, or for monitoring a recording, a headphone set may be connected to this jack. Use a headphone with an impedance rating of 8 to 1200 ohms.
Syncro Reverse (SYNC REV)
Press this button to set the SYNC REV mode. See page 11.

Display

Indicators with an encircled number light up when the corresponding button is pressed.
Peak Level Meter Direction & Pause Indicators Multi Counter SYNC REV Indicator Mode Indicators Dubbing Indicators

L dB R

SYNC REV REC HIGH DUB PLAY NORM DUB PLAY

b c d e f

a b d !4
TIMER Switch (TIMER playback/TIMER recording)
The select switch for use in timer playback or timer recording using an audio timer. Set this switch to the OFF position when timer playback or timer recording is not required.

PITCH CONTROL Knob

Used to vary the pitch (key of music) during playback of a cassette. (Only the pitch of Deck A can be varied.) Turn the PITCH CONTROL clockwise to heighten the pitch by increasing the tape transport speed. Turn it counterclockwise to lower the pitch by decreasing the tape transport speed.

CASSETTE TAPES

Handling Precautions C-120 Cassettes C-120 cassette tapes are not recommended as they use a very thin tape base which may become tangled around the capstan or pinch roller. Tape Slack Before putting a tape into the deck, take up any slack with a pencil or your finger tip. This precaution prevents the tape from becoming entangled around the capstan or pinch roller. Storage Precautions Do not store cassette tapes in a place where they will be subject to: Extremely high temperature or excessive moisture Excessive dust Direct sunlight Magnetic fields (near TV sets or speakers) To eliminate tape slack, store your cassettes in cassette cases with hub stops Accidental Erasure Prevention All cassettes have erasure prevention tabs for each side. To protect valuable recordings from accidental or inadvertent erasure, remove the tab for the appropriate side with a screwdriver or another tool. To record on a tape whose ensure prevention tabs have been removed, cover the tab holes with adhesive tape.
Erasure prevention tab for side A Erasure prevention tab for side B

AUTOMATIC TAPE SELECTION

This Stereo Cassette Deck contains an automatic tape selector which automatically selects the optimum bias and equalization for the tape in use. This is accomplished by detection of tape type detection holes in the cassette housing. If a tape without tape type detection holes is used, the deck will be set for normal tapes.
Detection holes for metal tape
Detection holes for chrome tape

PLAYBACK

The operations described below apply to deck A and deck B alike. Switch on your amplifier or receiver. Set the Function Selector on your amplifier or receiver to the TAPE or Tape monitor position. The numbers in the illustration below depict the order in which operation steps are carried out.
DOUBLE CASSETTE DECK SD4050 COUNTER RESET COUNTER RESET
DOLBY NR C B OFF TIMER REC OFF PLAY REV. MODE SYNC REV DUBBING SPEED HIGH NORMAL

) position. 6. Press the PLAY button y ( Transport Direction Forward Reverse or ) to being playback. Indicator
1. Press the POWER switch q to the ON (
2. Press the EJECT ( ) button w to open the cassette compartment cover e. 3. Load the cassette tape and close the cassette compartment cover e. 4. When listening to a tape that has been recorded with Dolby noise reduction, set the DOLBY NR switch r to match the system used at the time of recording.

DOLBY NR C B OFF

5. Select the type of tape transport with the REV MODE switch t.
7. Press the STOP ( ) button u to stop the playback. In the continuous playback mode (REV MODE set to ), playback of both tape sides will be repeated 5 times and then stop automatically. If different types of Dolby noise reduction are used for record and playback, playback response will be adversely effected. When power is turned off during tape transport, it may not be possible to remove the cassette by pressing the EJECT ( ) button. In this case, turn on power again before you press the EJECT ( )button.
Mode To listen to one side only To listen to playback of both sides To listen to continuous play back of both sides and both decks.

Switch position

RELAY PLAY (continuous playback of the tapes in deck A and deck B) Load a cassette tape into deck A and B, and set the Dolby NR button correctoly.
COUNTER RESET DOLBY NR C B OFF TIMER REC OFF PLAY REV. MODE SYNC REV DUBBING SPEED NORMAL HIGH
1. REV MODE set to q. 2. Press the PLAY button w of the deck you first wish to listen to. 3. To stop relay play, press the stop ( ) e of the deck currently playing the tape. Relay play will play deck A and B in succession for 5 times, (Deck A Deck B Deck A Deck B Deck A) or (Deck B Deck A Deck B Deck A Deck B).

RECORDING (DECK B only)

Switch on your amplifier or receiver and the source component. Set the Function Selector or Tape monitor on your amplifier or receiver to the SOURCE or Tape monitor OFF position.

DOUBLE CASSETTE DECK SD4050 COUNTER RESET DOLBY NR C B OFF TIMER REC OFF PLAY REV. MODE SYNC REV DUBBING SPEED HIGH NORMAL
1. Press the POWER switch q to the ON ( ) position. 2. Load the cassette tape w. (Check that the erasure prevention tabs of the cassette housing have not been broken off.) 3. Press the DOLBY NR switch e and select the Dolby NR type that suits the recording.
5. Press the REC button !0 to set the recording pause mode. The REC and indicator will light up. 6. Adjust the recording level with the REC LEVEL control y while watching the Peak Level Meter. 7. Press the PLAY ( ) button u to start the recording. The PLAY and the REC Indicator will light during recording. 8. To pause the recording, press the PAUSE ( ) button o. Press the PLAY u or PAUSE button o to resume recording. 9. To stop recording, press the STOP ( ) button i. Caution: Be careful not to erase important recordings by mistake. Inadvertent start of recording will happen in the following cases: 1. If the PLAY button is pressed while the REC indicator lights, recording starts. 2. If the PLAY and REC button are pressed at the same time, recording starts. The best way to avoid accidental erasure is to break off the two erasure prevention tabs on the cassette housing.
4. Select the type of tape transport with the REV MODE switch r. Mode To record on only one side To continuously record on both sides Switch position or

PROPER RECORDING LEVEL

A too high recording level can saturate the tape and cause distortion. On the other hand, if the recording level is set too low, soft passages will be marked by residual noise. A proper recording level is the single most important factor for making well balanced recordings. Guideline for maximum recording level TYPE q (Normal) TYPE w (High position) TYPE r (Metal) 0 dB level on peaks 1 dB level on peaks 3 dB level on peaks Note: The optimum recording level differs depending on the program source and the type of tape used.
REC MUTE AND REC PAUSE BUTTON
1. To record a 4-second blank section during recording: Press the REC MUTE button. A 4-second blank will be recorded and the deck will enter the recording Pause mode. 2. To record a 4-second blank section during the recording Pause mode: Press the REC MUTE button from the recording Pause mode. A 4 second blank will be recorded and the deck will enter the recording Pause mode again. 3. To cancel recording of blank space: Press the PAUSE ( ) button. Blank space recording will be canceled and the deck enters the recording Pause mode. 4. To extend the blank section with another 4 seconds or more: Simply press the REC MUTE button and the blank section will be increased with another 4 seconds.

SYNCHRO RECORDING PROCEDURE (Deck B)
The following operation is available only when a MARANTZ CD player with the synchro recording capability is connected to the cassette deck. To use synchro recording, connect the remote control cord terminals on the CD player and cassette deck. 1. Load a cassette tape in Deck B. 2. If Dolby NR recording is required, select type B or C. 3. Press the RECORD/o button to put the cassette deck in recordpause mode. 4. Adjust the recording level with the REC LEVEL control. 5. Start edit playback of the CD player. (The operation procedure may be variable between CD players with edit function. Refer to the instruction manual of your CD player.) When the MARANTZ CD-57, CD-67 or CD6000 CD player is used, be sure to set the REV. MODE switch to "=". (This causes both tape sides A and B to be recorded automatically.) When other MARANTZ CD player than the above mentioned models is used, set the REV. MODE switch to "=". (This causes only tape side A or B to be recorded.)

TAPE COUNTER

1) Operation of the Tape Counter (1) Press the COUNTER RESET button to reset the counter to . (2) By using the PLAY, FF, or REW functions, the reading of the counter will change to indicate index position. During recording and playback operations, the counter is useful for noting the location of existing programs or positions where recording is to be started. The reading of this counter does not correspond with that of any other deck.
DOLBY B AND C NOISE REDUCTION SYSTEM
The Dolby noise reduction system substantially reduces the tape background noise (hiss) inherent in the cassette medium. Tape background noise consists primarily of high frequency information, which is particularly annoying during soft passages, The Dolby NR system increases the level of low volume mid and high frequency signals during recording and reduces the level of these signals by an identical amount during playback, As a result, the playback signal is identical to the original source, but the level of background noise generated by the tape is greatly reduced. The operating principle of Dolby C NR is similar to that of Dolby B NR except for the encoding/decoding response curves. The noise reduction effect obtained with Dolby C NR is up to 20 dB, compared to 10 dB with Dolby B NR. In addition, Dolby C NR uses an anti-saturation network and spectral skewing circuitry for a significant improvement in the dynamic range of the mid-to highfrequencies.
DOLBY HX PRO HEADROOM EXTENSION SYSTEM
This deck is equipped with the Dolby HX PRO headroom extension system. Since the system functions automatically during recording, no switching operation or adjustment is required. The system is effective with any type of Normal, High and Metal tape. The Dolby HX PRO headroom extension system functions during recording to raise the saturation level in the high frequency range. Therefore, most of the high frequency range distorted or lost during recording on conventional cassette decks are more faithfully recorded on the new MARANTZ cassette deck. Features of the Dolby HX PRO Headroom Extension System (1) Performance of Normal and High Position tapes can be improved to very close of that offered by Metal tape. (2) The dynamics in the high frequency range are improved significantly. (3) Since no decoding is necessary during playback, the improved sound can be enjoyed on any type of tape deck, including portable players and car aud io systems. (4) The system functions whether the Dolby B/C NR system is engaged or not.

MAINTENANCE

Head cleaning After long usage, tape coating material or dust may adhere to the heads, causing deterioration of sound. Therefore, the parts depicted in the illustration should be cleaned reguraly. Use a cotton swab moistened with a tape head cleaning solution (such as alcohol). Note: 1. Some cleaning cassettes on the market have strong abrasive effects and may scratch the heads. Always use cotton swabs instead of cleaning cassettes. 2. Since the use of metal tape is apt to collect more dust on the heads, the heads should be cleaned more often to enjoy the best possible sound. Cleaning the Pinch Rollers and Capstans If the pinch roller or capstans accumulate dust, tape transport may become unstable, as a result from slippage, during recording or playback. The tape can also be damaged if it gets entangled in the capstan. Clean these parts with a cotton swab or a soft cloth moistened with a tape head cleaning solution (such as alcohol). Demagnetizing the Heads The heads may become magnetized after long usage or if storongly magnetized objects are brought near them. The result is a generation of noise, loss of the high frequency range, and in extreme cases erasure of the high frequency part on pre-recorded tapes in combination with added noise. Thus, the heads should be demagnetized at regular intervals. (Head demagnetizers are sparately available from your dealer.) How to Demagnetize the Tape Heads 1. Turn off the power. 2. Turn on the demagnetizer while it is at least 30 cm away from the heads. Bring the demagnetizer near the heads and slowly move it in small circles four or five times in front of each head, making sure you do not touch them. 3. Slowly move the demagnetizer away and turn it off when it is at least 30 cm away from the heads. 4. For more details, please read the User Guide provided with the demagnetizer (optional).
CAPABILITY OF REMOTE CONTROL PLAY ( ) FF ( ) REW ( ) PAUSE ( ) STOP ( ) REC REC MUTE COUNTER RESET DECK A DECK B DIRECTION ( ) RC-5 CODE 1847
USING THE REMOTE CONTROL UNIT
1. Remote control Operate the remote control unit (RC455SD) within a distance of approx. 5 m from the infrared signal reception window (remote sensor) on the front of the CASSETTE DECK. Remote control operation may not be possible if the remote control unit's transmitter is not pointing in the direction of the remote sensor or if there is an obstruction between the transmitter and the remote sensor.

Remote control operating range

A DECK B

x c v b

n m ,. 0

RC455SD

Approx. 5m

Cassette deck
z A/B button Mechanism select buttons (DECK A/B): Press to select the deck mechanism, Deck A or Deck B, to be controlled.
(REC PAUSE) button: Press this button to enter the recording pause mode from the recording or recording mute mode. This button can only be used during recording. See page 9. REC button: Press the REC button, the deck enters the Recording Pause mode. See page 9.

Remote control unit

2. Loading batteries Batteries in this remote control unit have a life of approximately 1 year under normal operating conditions. When the remote control unit is not to be used for an extended period of time, remove the batteries. Also, when you notice that the batteries are starting to run down, replace them as soon as possible.
(1) Remove the battery cover.
Remote control unit Rear side
v (Play button): Press to playback tape. b (Fast rewind button): Press for fast rewind. n RESET button: Press to tape counter reset.
REC MUTE button: Press the REC MUTE button, the Recording Pause mode will start Auto Rec Mute, and a 4-second silent space is recorded onto the tape. See page 9.
(2) Insert the batteries with correct e/ orientation. Two AA-size (R6 batteries)
(DIRECTION) button: After starting playback, press the forward ( select the top playback direction.

) or reverse (

. (Fast forward button): Press for fast forwarding. 0
(STOP) button: Press to cancel any operation modes and stop the tape travel of the deck.
(3) Close the battery cover until it clicks shut.

TROUBLESHOOTING

Check the following before you draw the conclusion that your Stereo Cassette Deck is malfunctioning. 1. Are all the connections correct? 2. Are all system components being operated correctly in accordance with the operating instructions? 3. Are the speakers and amplifier receiver functioning correctly? If the tape deck still does not function properly, check the symptom against the list below. If the symptom does not correspond to the check list, please contact your MARANTZ dealer.

Problem Cause Remedy

Tape does not run.
Power cord is disconnected. Tape is loose. Cassette is not loaded properly. Defective cassette.
Check power cord. Tighten tape with a pencil, etc. Load cassette properly. Replace cassette.
Tape is not recorded when REC MUTE button is pressed.
No cassette is loaded. Erase prevention tab is broken off.
Heads, capstan or pinch roller are dirty. Tape is wound too tight. Recording input level is too high. Tape is worn out and has drop-outs.
Load cassette. Cover hole with adhesive tape.
Clean them. Fast forward or rewind to loosen tape winding. Adjust recording input level. Replace tape.

Sound is warbled or distorted.

Excessive noise.

Tape is worn. Heads, capstan or pinch roller are dirty. Heads are magnetized. Recording input level is too low
Replace tape. Clean them. Demagnetize heads. Adjust recording input level.
High frequency range (treble) is emphasized. High frequency range (treble) is lost.
Dolby NR switch iis set improperly Heads are dirty. Tape is worn. If the POWER switch is turned off either during
recording or playback, and the unit is stopped, there may be case when the cassette cannot be removed, even if the EJECT ( ) button is pressed.
Set Dolby NR switch properly. Clean them. Replace tape. Turn the POWER switch ON again, and then
press the STOP ( ) button. Now, press the EJECT ( ) button to remove the cassette tape.
The cassette tape cannot be removed.

SPECIFICATIONS

Type Heads Vertical tape loading; 4-track 2-channel stereo double cassette deck Play back head 1 recording/playback head 1 Erase head (Double-gap ferrite) 1 DC servo motor 2 4.8 cm/sec. 9.5 cm/sec. (When high speed dubbing) 100 mV input level at maximum Input impedance: 50 kohms unbalanced Output LINE 460 mV (0 dB) output level at maximum (with 47 kohms load, recorded level of 200 nWb/mm) PHONES 0.95 mW output level at maximum (optimum load impedance 8 ohms ~ 1.2 kohms) Power Consumption 0.13 A Dimensions 17-7/16 (W) 5-5/16 (H) 12-9/16 (D) inches 440 (W) 124 (H) 286 (D) Weight 8.58 lbs oz (4.0 kg) Inputs LINE
Motors Tape Speed Fast Forward, Rewind Time Approx. 110 sec. with a C-60 cassette Recording Bias Approx. 100 kHz Overall S/N Ratio (at 3% THD level) Dolby C NR on: more than 74 dB (CCIR/ARM) Overall Frequency Response 25 ~ 18,000 Hz 3 dB (at 20 dB, Metal tape) Channel Separation More than 40 dB (at 1 kHz) Wow & Flutter 0.09 % WRMS, 0.1 % w. peak
* Above specifications and design are subject to change without prior notice. Dolby noise reduction and HX Pro headroom extension manufactured under license from Dolby Laboratories Licensing Corporation. HX Pro originated by Bang & Olufsen. DOLBY, the double-D symbol and HX PRO are trademarks of Dolby Laboratories Licensing Corporation.
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HX Pro headroom extension originated by Bang & Olufsen and manufactured under license from Dolby Laboratories Licensing Corporation. "DOLBY", the double-D symbol Licensing Corporation. , and "HX PRO" are trademarks of Dolby Laboratories
is a registered trademark.
Printed in China 99/04 SG 286W851250