Model PMD520 User Guide
3-Head Double Cassette Deck
R
SAFETY
INSTRUCTIONS
READ BEFORE OPERATING EQUIPMENT
This product was designed and manufactured to meet strict
12. Grounding or Polarization — The precautions that should
be taken so that the grounding or polarization means of an
appliance is not defeated.
quality and safety standards. There are, however, some in-
stallation and operation precautions which you should be par-
ticularly aware of.
1. Read Instructions — All the safety and operating instruc-
tions should be read before the appliance is operated.
2. Retain Instructions — The safety and operating instruc-
tions should be retained for future reference.
AC POLARIZED PLUG
3. Heed Warnings — All warnings on the appliance and in
the operating instructions should be adhered to.
13. Power-Cord Protection — Power-supply cords should be
routed so that they are not likely to be walked on or
pinched by items placed upon or against them, paying par-
ticular attention to cords at plugs, convenience recep-
tacles, and the point where they exit from the appliance.
4. Follow Instructions — All operating and use instructions
should be followed.
5. Water and Moisture — The appliance should not be used
near water — for example, near a bathtub, wash-bowl,
kitchen sink, laundry tub, in a wet basement, or near a
swimming pool, etc.
14. Cleaning — The appliance should be cleaned only as rec-
ommended by the manufacturer.
15. Power Lines— An outdoor antenna should be located
away from power lines.
6. Carts and Stands — The appliance should be used only
with a cart or stand that is recommended by the manufac-
turer.
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 volt-
age surges and built up static charges. Section 810 of the
National Electrical Code, ANSI/NFPA No. 70-1984, pro-
vides information with respect to proper grounding of the
mast and supporting structure, grounding of the lead-in
wire to an antenna discharge unit, size of grounding con-
ductors, location of antenna-discharge unit, connection to
grounding electrodes, and requirements for the grounding
electrode. See Fig. 1.
7. An appliance and cart combination should be moved with
care. Quick stops, excessive force, and uneven surfaces
may cause the appliance and cart combination to over-
turn.
17. Nonuse Periods — The power cord of the appliance
should be unplugged from the outlet when left unused for
a long period of time.
8. Wall or Ceiling Mounting — The appliance should be
mounted to a wall or ceiling only as recommended by the
manufacturer.
18. Object and Liquid Entry — Care should be taken so that
objects do not fall and liquids are not spilled into the enclo-
sure through openings.
9. Ventilation — The appliance should be situated so that its
location or position does not interfere with its proper ven-
tilation. For example, the appliance should not be situ-
ated on a bed, sofa, rug, or similar surface that may block
the ventilation openings; or, placed in a built-in installa-
tion, such as a bookcase or cabinet that may impede the
flow of air through the ventilation openings.
19. Damage Requiring Service — The appliance should be
serviced by qualified service personnel when:
A. The power-supply cord or the plug has been damaged;
or
B. Objects have fallen, or liquid has spilled into the appli-
ance; or
C. The appliance has been exposed to rain; or
10. Heat — The appliance should be situated away from heat
sources such as radiators, heat registers, stoves, or
other appliances (including amplifiers) that produce
heat.
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.
11. Power Sources — The appliance should be connected to
a power supply only of the type described in the operating
instructions or as marked on the appliance.
20. Servicing — The user should not attempt to service the
appliance beyond that described in the operating instruc-
tions. All other servicing should be referred to qualified
service personnel.
3
FIG. 1
EXAMPLE OF ANTENNA GROUNDING ACCORDING TO
NATIONAL ELECTRICAL CODE INSTRUCTIONS
CONTAINED IN ARTICLE 810 - “RADIO AND TELEVISION EQUIPMENT”
ANTENNA
LEAD IN
WIRE
GROUND
CLAMP
ANTENNA
DISCHARGE UNIT
(NEC SECTION 810–20)
ELECTRIC
SERVICE
EQUIPMENT
GROUNDING CONDUCTORS
(NEC SECTION 810–21)
GROUND CLAMPS
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250, PART H)
NEC – NATIONAL ELECTRICAL CODE
This Class B digital apparatus meets all requirements of the
Cet appareil numérique de la Classe B respecte toutes les
Canadian Interference - Cansing Equipment Regulations.
exigences du Règlement sur le matériel brouilleur du Canada.
NOTE TO CATV SYSTEM INSTALLER:
This reminder is provided to call the CATV system installer’s attention to Article 820–40 of the NEC that
provides guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected
to the grounding system of the building, as close to the point of cable entry as practical.
4
Dolby noise reduction and HX Pro headroom extension are 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.
is a registered trademark.
Printed in Japan
98 / 10 MIT
418S851252
TABLE OF CONTENTS
Page
INTRODUCTION............................................................................................................................................................. 6
PRECAUTIONS .............................................................................................................................................................. 6
FEATURES ..................................................................................................................................................................... 6
REAR PANEL CONNECTIONS ...................................................................................................................................... 7
FRONT PANEL FEATURES ........................................................................................................................................... 7
DISPLAYS ....................................................................................................................................................................... 9
OPERATION ................................................................................................................................................................. 10
PLAYBACK ............................................................................................................................................................... 10
PLAYBACK ON ONE WELL (Same procedure for Well A or Well B) OR BOTH WELLS .................................... 10
CONTINUOUS PLAYBACK ................................................................................................................................. 10
TIMER PLAYBACK (Same procedure for Wells A and B) .................................................................................... 10
RECORDING............................................................................................................................................................ 10
SINGLE WELL RECORDING (Same procedure for Well A or Well B) ................................................................ 10
CONTINUOUS RECORDING ...............................................................................................................................11
PARALLEL RECORDING .....................................................................................................................................11
TIMER RECORDING (Same procedure for Wells A and B) .................................................................................11
OVERLAP SERIES RECORDING ........................................................................................................................11
CASCADE OPERATION .......................................................................................................................................... 12
CASCADE CONTINUOUS PLAYBACK ............................................................................................................... 12
CASCADE CONTINUOUS RECORDING ........................................................................................................... 12
SYNCHRONOUS RECORDING .............................................................................................................................. 12
CASCADE OVERLAP SERIES RECORDING ......................................................................................................... 12
OTHER OPERATIONS............................................................................................................................................. 13
ERASURE OF TAPE............................................................................................................................................ 13
AUTO TAPE SELECTOR..................................................................................................................................... 13
AUTOMATIC BIAS ADJUST ................................................................................................................................ 13
TAPE STOP ALARM ............................................................................................................................................ 13
AUTO COUNTER RESET ................................................................................................................................... 13
TO PROTECT VALUABLE RECORDINGS ......................................................................................................... 13
ENHANCED REMOTE CONTROL OPERATIONS .................................................................................................. 13
SIMULTANEOUS (PARALLEL) RECORDING ..................................................................................................... 13
DUPLICATION SYNCHRONIZATION ...................................................................................................................... 14
CONNECTION ..................................................................................................................................................... 14
NORMAL SPEED DUPLICATION........................................................................................................................ 14
HIGH SPEED DUPLICATION .............................................................................................................................. 14
QMS (QUICK MUSIC SEARCH) .............................................................................................................................. 14
AUTO BIAS & EQ SYSTEM.......................................................................................................................................... 15
CARE AND MAINTENANCE......................................................................................................................................... 16
MAINTENANCE ....................................................................................................................................................... 16
HEAD CLEANING................................................................................................................................................ 16
HEAD DEMAGNETIZATION ................................................................................................................................ 16
CLEANING OF EQUIPMENT EXTERNAL SURFACES ...................................................................................... 16
REPAIRS....................................................................................................................................................................... 16
TROUBLESHOOTING .................................................................................................................................................. 16
TECHNICAL SPECIFICATIONS ................................................................................................................................... 53
FRONT AND REAR PANEL DRAWINGS ..................................................................................................................... 54
5
¡ CASCADE CONNECTION FOR SERIAL CONNECTION OF
INTRODUCTION
MULTIPLE UNITS
By connecting several PMD520s in series by way of the cas-
cade connection, multiple units can play or record continu-
ously for logging and other long-time recording applications.
In this case, Wells A and B of unit #1 will play (or record) as
in the example above, then they will trigger the start of con-
tinuous playback (or record) of unit #2, and so on.
Thank you for selecting the Marantz Model PMD520 3-head In-
dependent Dual Well Cassette Deck.
Please read these operating instructions carefully. We recom-
mend that you read the entire user guide before you connect or
operate the unit.
After you have reviewed the contents this manual, we suggest
that you make all system connections before you attempt to
operate the unit.
Refer to the Figures on Pages 54 – 57 of this user guide.
The callout numbers on the Figures correspond to those found
in the text. All references to connections and controls are printed
in BOLD type, as they appear on the unit.
¡ OVERLAP SERIES RECORDING
This feature records long events such as a conference, with-
out interruption. The recording of the next tape starts when
the remaining time on the previous tape is approximately 3
minutes.
¡ PARALLEL RECORDING (DUPLICATION)
When multiple copies of the same source are required, it is
possible to record both Well A and Well B simultaneously, in
parallel, from a single source.
PRECAUTIONS
¡ TIMER REC/PLAY
The following precautions should be considered when operat-
ing the equipment.
Time-activated playback and recording are available using
a commercially available timer.
When setting the equipment ensure that :
¡ FINE SPEED CONTROL
– air is allowed to circulate freely around the equipment
– the equipment is on a vibration free surface
Each Well features 3% speed control.
¡ METERS AND LINEAR TIME TAPE COUNTERS
– the equipment will not be exposed to interference from an
external source
Each Well features independent FL bargraph meters, and a
linear time (minutes and seconds) counter. The display on
these counters is only an approximate indication of minutes
and seconds and its accuracy depends on the match be-
tween the Tape and the correct TAPE TIME setting.
– the equipment will not be exposed to excessive heat, cold,
moisture or dust
– the equipment will not be exposed to direct sunlight
– the equipment will not be exposed to electrostatic discharges
¡ In addition, never place heavy objects on the equipment.
¡ TAPE STOP ALARM
A buzzer sound is generated to indicate the end of tape af-
ter playback or recording.
¡ If a foreign body or water does enter the equipment, contact
your nearest dealer or service center.
¡ DOLBY B/C NR SYSTEMS
¡ Do not pull out the plug by pulling on the mains lead. Hold
The Dolby NR (Noise Reduction) systems compress and am-
plify signals during recording in order to raise the signal-to-
noise ratio on the tape. During playback, these signals are
expanded and attenuated by the same amount in order to
regain the original dynamic range of the music. An additional
result of this expansion and attenuation is that the noise floor
of the recording is reduced significantly. Dolby B typically
reduces noise by 10 dB, while Dolby C typically reduces
noise by 20 dB.
the plug.
FEATURES
¡ COMPLETELY INDIVIDUAL DUAL SYSTEM
Well A and Well B can be controlled independently for both
recording and playback. There are two sets of inputs and
outputs which allow for many modes of recording and play-
back. Two separate input sources can be recorded simulta-
neously and independently on the two decks; two different
tapes can be played back simultaneously on the two decks;
and lastly, it is possible to play a cassette on one well, and
record a different source (such as a mixer) on the other well
simultaneously.
¡ DOLBY HX PRO HEADROOM EXTENSION
The Dolby HX PRO system monitors the total amount of ef-
fective bias during recording and instantaneously compen-
sates for any excess bias by reducing the deck’s bias signal
level accordingly.
The system operates independently on each channel. HX
PRO is unlike a noise reduction system because it functions
only during recording and no decoding is required. There-
fore, a tape recorded with the HX PRO system can be played
back on any other cassette deck while retaining the benefits
of HX PRO.
There are also several modes in which the two decks work
together.
¡ CONTINUOUS RECORDING AND PLAYBACK
Dolby noise reduction and HX Pro headroom extension are
manufactured under license from Dolby Laboratories Licens-
ing Corporation. HX Pro originated by Bang & Olufsen.
In the continuous mode, Well A will play (or record) side one,
and then automatically switch to Well B, which will play (or
record) side one. In this way 1-1/2 hours of uninterrupted
playback or recording is possible using C-90 cassettes.
“DOLBY” the double-D symbol and “HX PRO” are trademarks
of Dolby Laboratories Licensing Corporation.
6
CONTROL I/O Pin assign
REAR PANEL CONNECTIONS
Pin No.
Function
REW A IN
Pin No.
14
Function
NORM IN
A DECK A/B LINE INPUT
1
2
These jacks should be connected to LINE OUTPUT of your
source.
REW B IN
15
HIGH IN
3
FF A IN
16
AUTO REW IN
TAPE TIME A IN
TAPE TIME B IN
COUNTER RESET A IN
COUNTER RESET B IN
AUTO BIAS A IN
AUTO BIAS B IN
HIGH OUTPUT
GND
4
FF B IN
17
Note:
5
PLAY A IN
PLAY B IN
STOP A IN
STOP B IN
REC A IN
18
Short pins are installed from the factory in the Deck B IN-
PUT.
The short pins should be removed only if an input source is
connected directly to Deck B. They have been installed to
avoid crosstalk from one deck to the other, in case one deck
is recording and the other deck is playing back.
6
19
7
20
8
21
9
22
10
11
12
13
REC B IN
23
REC MUTE A IN
REC MUTE B IN
A+B REC IN
24
25
A+B OUTPUT
B DECK A/B LINE OUTPUT
These jacks should be connected to the LINE INPUT of your
PA or monitoring system.
¡ All input is active low.
¡ All output is open collector.
C LOOP THROUGH A OUTPUT
These jacks output the same signal input to the LINE INPUT
jacks of Well A as they are input.
I AC POWER INPUT
Connect one end of the power cord to this receptacle.
D INPUT SELECT SWITCH
This switch selects the input mode for the LINE INPUT jacks.
¡ Position A, B : Deck A receives its input from LINE A.
Deck B receives its input from LINE B.
¡ Position A
: Both decks receive the same input from
LINE INPUT A.
FRONT PANEL FEATURES
q POWER SWITCH
E RC-5 REMOTE CONTROL JACKS
For switching the unit on and off.
These jacks are for use with the remote control accessories.
Connect the output of an RC-5 based remote control to the
RC-5 input of the PMD520. The RC-5 output of the PMD520
may be connected to the RC-5 input of other machines for
multiple-machine control from the same remote control ac-
cessory.
w CASSETTE HOLDER A/B
Insert cassettes into these holders with the exposed tape
facing downward.
Refer to the specifications for the complete RC-5 command
set.
e CONTROL BUTTONS
F EXT (EXTENSION) REMOTE CONTROL JACKS
This jack is used to cascade several PMD520s for continu-
ous serial recording and playback.
Connect the EXT OUT jack to the EXT IN jack of the next unit
in the chain.
STOP
Press this button to cancel any operation modes and to stop
tape travel.
PLAY
Press this button to start playback.
G MPX FILTER SWICH
FAST WIND
When recording FM broadcasts, set this switch to ON.
Press these buttons to fast wind in the direction of the ar-
rows. If the Well is in play mode, these buttons will place the
well in CUE/REVIEW Mode. In CUE/REVIEW mode, if these
buttons are pressed the Well will enter the fast wind mode.
H PARALLEL CONTROL I/O
These terminals contain a control signal input for almost all
of the operations of the unit and output the A+B and HIGH
signals.
REC
The application range of this unit can be expanded greatly
by using these terminals properly.
Press this button to enter the REC-PAUSE mode. Press PLAY
to initiate recording. Press this button again to re-enter the
REC-PAUSE mode.
13 12 11 10
9
8
7
6
5
4
3
2
1
REC MUTE
25 24 23 22 21 20 19 18 17 16 15 14
When in REC-PAUSE mode, press this button to record 3
seconds of no sound.
7
r COUNTER BUTTONS
i TAPE SPEED BUTTONS
These switches determine the playback/recording speed of
tapes in both Wells A and B.
¡ TAPE TIME
This button changes the reference time of tape (tape type)
so that the time counter can show accurate time informa-
tion. The initial setting when the unit is turned on is "60".
The first press of this button displays the current setting.
Every time this button is pressed while the time setting is
displayed, it is changed in a cyclic order of 60 → 90 → 120
→ 10 → 20 → 30 → 46 → 60...
¡ HIGH
Press this button to set the tape speed for duplication to
3-6/8 ips (9.5 cm/sec).
The HIGH indicator lights when HIGH is selected.
When HIGH is selected, Dolby NR is disabled.
¡ NORM
¡ RESET
Press this button to set the tape speed for duplication to
1-7/8 ips (4.75 cm/sec).
The NORM indicator lights up when NORM is selected.
Pressing this button will reset the counter time to 00.00 (0
minutes, 0 seconds).
t AUTO REW (AUTO REWIND) BUTTON
o OVERLAP REC (OVERLAP RECORD) BUTTON
Used to switch the auto rewind mode ON or OFF.
The indicator lights up when the auto rewind mode is on.
When the auto rewind mode is on, each well enters rewind
mode upon detection of the end of tape.
The auto rewind mode is switched on or off simultaneously
for both Wells A and B.
Pressing the OVERLAP REC button when the continuous
mode is "
" or "
" switches the overlap series recording
mode alternately to Off → On → Off. The OVERLAP REC
indicator lights up when the overlap series recording mode
is on.
The operation in the overlap series recording mode is vari-
able depending on the current continuous mode.
The initial setting is off.
y CONT (CONTINUOUS) BUTTON
0
0
0
!
0
MONITOR BUTTONS
0
Used to switch the continuous mode ON or OFF.
Pressing this button switches the monitoring mode between
Tape and Source.
The MONITOR indicator lights up when monitoring from the
tape, and is off when monitoring from the input source.
The initial setting when the unit is turned on is tape monitor.
Every time this button is pressed, the CONT indicator status
changes in cycle of On → Blinking → Off → On...
The lighting of the indicator indicates that the continuous
mode of PMD520 is "
The blinking of the indicator indicates that its continuous
mode is " ". (A → B → A → B → A →...)
The initial setting when the unit is turned on is off.
Pressing the PLAY or REC button while the continu-
". (A → B → C → D → E →...)
1
1
1
!
1
2
BIAS RESET BUTTONS
1
Used to reset the bias setting to the factory setting.
The indicator is off when the factory-set bias setting is used.
The indicator will light up after the Auto Bias program is run.
ous mode is on starts continuous playback or continuous
recording.
u A+B REC BUTTON
2
2
2
!
DOLBY NR B/C SELECTORS
2
Check to insure that both wells are in STOP mode prior to
pressing the A+B REC button.
This switch is used to select Dolby B or C noise reduction
for recording or playback.
Most commercially available cassettes which display the
double-D symbol are encoded with Dolby B noise reduc-
tion.
Pressing the A+B REC button once will cause both wells to
enter a REC-PAUSE mode to adjust recording levels. Press-
ing the A+B REC button a second time, will cause both wells
to enter a REC mode simultaneously. Pressing the A+B REC
button a third time, will cause both wells to enter a REC-
PAUSE mode again and pressing the A+B REC button a
fourth time , will resume the REC mode.
Note:
When the TAPE SPEED is set to HIGH, the Dolby NR is
switched off regardless of the position of the selectors.
8
3
3
3
3
!
3
TIMER
DISPLAYS
This switch is used to set the timer operation mode.
a TAPE TIME COUNTERS
¡ OFF
No timer operation is used when the switch is set to this
position.
These counters display the tape position for each Well in
Minutes and Seconds.
¡ REC
Timer recording operation is activated when the switch is
set to this position. The tape will automatically start record-
ing when the power is switched on.
b BARGRAPH LEVEL METERS
These meters display the signal levels for each Well in ste-
reo.
¡ PLAY
Timer playback operation is activated when the switch is
set to this position. The tape will automatically start playing
when the power is switched on.
c AUTO REW INDICATOR
These indicators will light up when the AUTO REW mode
button t is pressed.
4
4
4
!
4
5
REC LEVEL CONTROL
4
For adjusting the record input level.
d CONT (CONTINUOUS) INDICATORS
These indicators will light up when the CONT mode button
5
5
5
5
!
REC BALANCE CONTROL
y is pressed.
Used to adjust the left-right balance of channels while re-
cording.
e A+B INDICATOR
These indicators will light up when the A+B mode button u
6
6
6
!
6
7
FINE SPEED
6
is pressed.
Each well features 3% speed control.
f TAPE SPEED INDICATORS
7
7
7
7
!
PHONES SELECTOR SWITCH
¡ HIGH SPEED INDICATOR
This indicator will light up when the HIGH SPEED mode
button i is pressed.
This switch allows you to select Well A, Well B, or a mix of
both Wells (A+B) in the phones.
¡ NORMAL SPEED INDICATOR
This indicator will light up when the NORMAL SPEED mode
button i is pressed.
8
8
8
!
8
9
PHONES LEVEL CONTROL
8
This control adjusts the volume of the headphone output.
g OVERLAP RECORDING INDICATOR
9
9
9
!
PHONES JACK
9
This indicator will light up when the OVERLAP REC mode
button o is pressed.
Use this jack to connect a pair of headphones with a stereo
1/4" connector.
h MONITOR INDICATORS
These indicators will light up when in the TAPE MONITOR
mode.
i BIAS RESET INDICATORS
These indicators will light up after the BIAS RESET program
is run.
9
RECORDING
OPERATION
SINGLE WELL RECORDING
(Same procedure for Well A or Well B)
PLAYBACK
PLAYBACK ON ONE WELL (Same procedure for Well
A or Well B) OR BOTH WELLS
1. Insert a blank cassette into the cassette holder(s).
2. Reset the tape counter by pressing the RESET button.
1. Set the POWER button to ON.
3. If you wish to use Dolby NR, set the DOLBY NR switches
2. Insert a prerecorded cassette in the cassette holder(s).
3. Reset the tape counter by pressing the RESET button.
accordingly.
4. Press the REC
button to enter REC-PAUSE mode.
4. If the tape has been encoded with Dolby NR, set the DOLBY
5. Adjust the record level using the REC LEVEL control, so that
NR switches accordingly.
the red LEDs light only at peaks in the music.
5. Press the PLAY
button to play the cassette.
button to stop playback.
6. Press the PLAY
button to initiate RECORD.
6. Press the STOP
7. Press the STOP
button to end recording, or press REC
again to re-enter REC-PAUSE mode.
Note:
CONTINUOUS PLAYBACK
Be aware of the setting of the input select switch on the rear
panel.
1. Set the POWER button to ON.
2. Insert recorded cassettes into both Wells.
¡ A, B Position : Well A receives input from input A, Well B
receives input from input B.
3. If the tape has been encoded with Dolby NR, set the DOLBY
NR switches accordingly.
¡ A Position
: Both wells receive input from input A.
4. Press the CONT button to select the continuous mode. The
lighting of the CONT indicator indicates the "
the blinking indicates the " " mode.
5. Press one of PLAY buttons. Playback will start. When that
Well finishes playing , the second well will begin playing.
6. When the continuous mode is " ", the tape stops after the
" mode and
Tape Types and Length
Any type of tape (Normal, High, or Metal) can be used with the
PMD520. High or Metal tapes have superior performance com-
pared to Normal Tapes. The PMD520 can sense which kind of
tape is being used, and will automatically adjust bias, EQ, etc.
C-60 or C-90 length tapes are recommended, as C-120 tapes
are often too thin, and can become entangled in the transport
mechanism.
second well is finished or triggers another deck via the EXT
output.
7. When the continuous mode is "
" and the AUTO REW mode
is on, the tape in the first well that has been rewound is played
after the second well is finished.
Remote Operation
8. Press the STOP
to stop playback.
The period (00 . 0 0) of the time display will flash depending
on which Well is being addressed by a conected remote con-
trol.
9. Press CONT to cancel CONT mode.
Note:
During continuous playback, the signal from both wells goes
to line output A.
TIMER PLAYBACK (Same procedure for Wells A and B)
1. Connect the power cord of this unit to a timer.
2. Insert a prerecorded cassette in the cassette holder(s).
3. If you wish to use Dolby NR, set the DOLBY NR switches to
select B- or C-type noise reduction.
4. Set the POWER switch of this unit to ON.
5. Set the TIMER switch to the PLAY position.
6. Set the timer to the desired time.
7. When the set time comes and the timer turns on, power is
supplied to the unit and playback starts automatically.
Note:
Use a timer which can turn on at the desired time of the day.
10
TIMER RECORDING
(Same procedure for Wells A and B)
CONTINUOUS RECORDING
1. Insert blank cassettes into both Wells. Be sure that both decks
are rewound.
1. Connect the power cord of this unit to a timer.
2. Insert a blank cassette in the cassette holder(s).
3. Set the POWER button to on.
2. If you wish to use noise reduction, set the DOLBY NR switches
accordingly.
3. Reset the tape counters to "00.00" by pressing the RESET
4. If you wish to use Dolby NR in your recording, set the DOLBY
buttons.
NR switches to select B- or C-type noise reduction.
4. Press the CONT button. Pressing it once sets the "
in which the indicator lights up. Pressing it twice sets the
" mode, in which the indicator blinks.
" mode,
5. Press the REC
button to enter record-pause mode.
6. While observing the level meter, adjust the REC LEVEL Con-
"
trol.
5. Press the REC
buttons of both wells to enter REC-PAUSE
7. Set the TIMER switch to the REC position.
mode.
8. Set the timer to the desired time.
6. Adjust the record level using the REC LEVEL control.
7. Press the PLAY button on Well A to initiate RECORD.
8. When the tape in Well A is finished, recording starts auto-
matically in Well B. If the continuous mode is " ", recording
ends when tape in Well B is finished and another deck is
triggered with the EXT output. If the continuous mode is " ",
9. When the set time comes and the timer turns on, power is
supplied to the unit and recording starts automatically.
Note:
Use a timer which can turn on at the desired time of the day.
recording in Well A restarts at the moment recording in Well
B is finished. At this time, the tape in Well A should be re-
versed manually or replaced with a new tape.
OVERLAP SERIES RECORDING
1. Insert blank cassettes in the cassette holders of both wells.
9. Press STOP
button to end the Recording.
2. Press the CONT button. Pressing it once sets the "
in which the indicator lights up. Pressing it twice sets the
" mode, in which the indicator blinks.
" mode,
10. Press the CONT button to cancel continuous mode.
"
Note:
All input for continuous recording will come from Line In-
put A.
3. Press the OVERLAP REC button. The OVERLAP REC indi-
cator lights up to indicate the overlap series recording mode.
4. Press the REC
buttons of Wells A and B to enter record-
pause mode.
PARALLEL RECORDING
5. In record-pause mode, adjust the REC LEVEL controls of
both wells.
1. Insert blank cassettes into both Wells. Be sure that both decks
are rewound.
6. Press the PLAY
button of Well A or B to start recording.
7. When the remaining time on the tape in the first Well is ap-
proximately 3 minutes, the other well starts recording auto-
matically.
2. If you wish to use noise reduction, set the DOLBY NR switches
accordingly.
3. Reset the tape counters to “00.00” by pressing the RESET
8. If the auto rewind mode is switched on, the finished tape is
rewound automatically to the beginning. If the auto rewind
mode is off, reverse the finished tape manually to prepare
for the next recording.
buttons.
4. Press the A+B REC button. This will set both Wells for record,
and the REC lights will blink.
5. Adjust the record level using the REC LEVEL control.
9. To terminate the overlap series recording mode, press the
6. Press the A+B button again to start the recording.
OVERLAP REC button again.
7. Press both STOP
buttons to stop recording, or press the
Note:
A+B button to re-enter record-pause mode.
If AUTO REW is activated during the "
" mode or the con-
Note:
All input for parallel recording will come from Line Input A.
tinuous loop is fed back to the first deck, the information re-
corded will be erased and recorded over.
11
CASCADE OPERATION
SYNCHRONOUS RECORDING
Synchronous Recording is possible only when this unit is con-
nected with a Marantz Professional product equipped with the
Sync Recording function.
Refer to Fig. 5
CASCADE CONTINUOUS PLAYBACK
The Synchronous Recording connection consists of a single RCA
cable which runs to the RC-5 REMOTE input jack on the rear
panel of the PMD520, from the REMOTE output jack on the rear
panel of the Marantz source.
1. Set the POWER button to ON.
2. Connect the EXT output of the first unit into the EXT input of
the second unit.
Then connect the EXT output of the second deck into the
next unit in the chain or back into the first unit.
1. Set the POWER button to ON.
3. Insert recorded cassettes into all wells.
2. Insert blank cassettes into the appropriate Wells.
4. If the tape has been encoded with Dolby NR, set the DOLBY
3. If the tape has been encoded with Dolby NR, set the DOLBY
NR switches accordingly.
NR switches accordingly.
5. Press the CONT buttons on all units. The CONT Indicator will
4. press the REC
button on the appropriate Wells of the unit.
light.
Check to see that REC-PAUSE mode is indicated.
When recording two tapes in parallel, press the A+B button
6. Press the PLAY
button of Well A, of Unit #1.
instead the REC
5. Adjust the recording level with source playing.
6. Press the PLAY button of the source player.
button.
7. When Well A of Unit #1 finishes, Well B of Unit #1 will start
automatically.
8. When Well B of Unit #1 finishes, Well A of Unit #2 will start
automatically.
9. To stop playback, press the CONT button, and STOP
CASCADE OVERLAP SERIES RECORDING
buttons on all units.
Note:
1. Connect the units as shown in Figure 6.
Output from both Wells of each unit will be sent to LINE Out-
put A on each unit. Line output B is not used on any unit.
2. Insert blank cassettes in both Wells A and B of all the con-
nected units.
3. Press the CONT button of all the units so that their CONT
indicator light up (the continuous mode is "
").
CASCADE CONTINUOUS RECORDING
4. Press the OVERLAP REC buttons of the all the units.
The OVERLAP REC indicators light up to indicate the over-
lap series recording mode.
1. Set the POWER button to ON.
2. Connect the EXT output of the first unit into the EXT input of
the second unit.
5. Press the REC
buttons of both Wells A and B of all the
units to put all the wells in record-pause mode.
Then connect the EXT output of the second deck into the
next unit in the chain or back into the first unit.
6. Adjust the REC LEVEL controls of Wells A and B in record-
pause mode.
3. Insert recorded cassettes into all wells.
7. Press the PLAY
button of Well A or B of unit #1 to start
4. If the tape has been encoded with Dolby NR, set the DOLBY
recording.
NR switches accordingly.
8. When the remaining time on the tape in the first well becomes
about 3 minutes, the other well starts recording automati-
cally.
5. Press the CONT buttons on all units. The CONT Indicator will
light.
6. Press the REC
buttons on both Wells of each unit. Check
9. Similarly, when the remaining time on the tape in the second
well of unit #1 is approximately 3 minutes, Well A of unit #2
starts recording automatically.
to see that every Well indicates REC-PAUSE mode.
7. Adjust the recording level of each Well.
8. Press the PLAY
button on Well A of Unit #1.
10. If the auto rewind mode is switched on, the finished tape is
rewound automatically to the beginning. If the auto rewind
mode is off, reverse the finished tape manually to prepare for
the next recording.
9. When Well A of Unit #1 finishes, Well B of Unit #1 will start
automatically.
10. When Well B of Unit #1 finishes, Well A of Unit #2 will start
automatically.
11. To terminate the overlap series recording mode, press the
OVERLAP REC button again.
11. To stop Recording , press the CONT button, and STOP
buttons on all units.
12. To terminate the continuous mode, press the CONT button
twice.
Note:
Input to both Wells of each unit will be received from Line
Input A on each unit. Line Input B is not used on any unit.
Note:
If AUTO REW is activated during the "
" mode or the con-
tinuous loop is fed back to the first deck, the information re-
corded will be erased and recorded over.
12
Error Message
OTHER OPERATIONS
If a problem occurs during the AUTOMATIC BIAS routine,
an Error message will appear on the display. Please refer
to the following table.
Caution:
¡ If you must stop playback or recording in the middle of a tape,
be sure to press the STOP
button first, then turn the power
off. If the power is turned off in the middle of an operation, the
cassette tape remains loaded, and it may be impossible to
eject. In such a case, turn the power on, enter PLAY mode,
Err No.
Err 1
Err 2
Err 3
Err 4
Err 5
Meaning
Tape End Error
Internal Oscillator Error
Bias setting Error
REC EQ Adjust Error
Total Adjust Error
then press STOP
button, and then eject the tape.
¡ The same caution as above applies in cases of power failure.
To prevent damage, never attempt to force the removal of a
cassette while the power is off.
Errors 2-5 are probably the result of a bad tape. Please rerun
the AUTO BIAS program with a different tape.
ERASURE OF TAPE
When a program source is recorded onto a tape, the previously
recorded sound is erased automatically, and replaced with the
new recording. If you wish to erase a tape without recording,
set the REC LEVEL control to the minimum (0) position or re-
move the input source, and let the tape travel in the REC mode.
TAPE STOP ALARM
When either Well A or B reaches the end of a tape, the PMD520
generates a buzzer sound to indicate it.
AUTO TAPE SELECTOR
AUTO COUNTER RESET
This unit is equipped with auto tape selector which automati-
cally sets the bias and equalizer level using the detection holes
provided in the cassette shell. The bias and equalizer level is
automatically set according to the type of cassette as follows.
(See Figure 7)
When a cassette is removed from a cassette holder and an-
other tape is inserted, the tape counter is reset automatically to
"00:00".
¡ Normal tapes
¡ High tapes
¡ Metal tapes
EQ ; 120 µS , Bias ; Low
EQ ; 70 µS , Bias ; High
EQ ; 70 µS , Bias ; Metal
TO PROTECT VALUABLE RECORDINGS
In the record mode, information previously recorded on the tape
will automatically be erased. To prevent this from happening,
use a small screwdriver to break out one or both safety tabs
(See Figure 8). It is possible to restore the recording capability
of either side of the cassette by covering the opening with clear
adhesive tape (See Figure 9).
AUTOMATIC BIAS ADJUST
With this feature, the microcomputer built into the PMD520 ad-
justs the bias and record gain automatically so that the charac-
teristics of the tape in use can be exhibited fully. (Refer to page
15 for more information)
1. Insert the cassette in the cassette holder of the well to be
subjected to bias setting.
ENHANCED REMOTE CONTROL OPERATIONS
SIMULTANEOUS (PARALLEL) RECORDING
2. While holding down the REC
button Press the REC MUTE
button.
Check to insure that both wells are in REC PAUSE mode after
pressing the A+B REC button on the front of the unit. The unit
will start recording when either a PLAY or A+B command from
the remote controller has been received. During the REC mode,
the unit can be placed into a REC PAUSE mode by sending a
PAUSE, A+B, or REC command from the remote controller and
started again by a PLAY or A+B command from the remote
3. Ab will appear on the display followed by a number that will
count down until the adjustment is complete.
4. If an Error occurs during this process, please refer to the
next section.
5. When the bias has been set, the BIAS RESET indicator lights
up.
controller. Pressing the STOP
button on the front of the unit
6. To reset the bias to the factory setting, press the BIAS RE-
SET button. The indicator is extinguished and the factory-
set bias is recalled.
or sending a STOP command from the remote controller will
cancel this operation.
7. To return to the set bias, press the BIAS RESET button so the
indicator lights up.
8. To change the bias setting, start the adjustment from the be-
ginning.
13
HIGH SPEED DUPLICATION
DUPLICATION SYNCHRONIZATION
1. Insert the master tape in Well A of unit #1.
Refer to Fig. 6
CONNECTION
2. Insert the blank cassettes in both Wells A and B of units #2
and after.
1. Connect the WRC220 * to the RC-5 IN jack of unit #1.
3. Press the TAPE SPEED HIGH buttons of all the units so that
2. Connect the RC-5 OUT jack of unit #1 with the RC-5 IN jack
of unit #2.
the HIGH indicators of all the units light up.
4. DOLBY NR is automatically switched off for high speed du-
plication. See Note 1 below.
3. Connect the RC-5 OUT jack of unit #2 with the RC-5 IN jack
of unit #3.
5. Press the A+B button of the WRC220. All the slave units en-
4. Up to 100 units can be connected in the same way as de-
scribed above.
ter record-pause mode.
6. Set the REC LEVEL controls of the slave units to the center
click positions. See Note 2 below.
5. Connect the DECK A OUTPUT jacks of unit #1 with the DECK
A INPUT jacks of unit #2.
7. Press the TAPE A button of the WRC220. This button should
be pressed only once and need not be pressed even when
duplication is performed later.
6. Connect the LOOP THROUGH A OUT jacks of unit #2 with
the DECK A INPUT jacks of unit #3.
Press the PLAY
button of the WRC220. The master tape
7. Similarly, connect the LOOP THROUGH OUT and DECK A
INPUT jacks of other units up to unit #100.
in Well A of unit #1 starts to be played and both Wells A and
B of the units #2 and after start recording.
8. Set the INPUT SELECT switches of units #2 and after to A.
* WRC220 is sold separately.
8. To stop duplication, press the STOP button of the WRC220.
Notes
Observe the following notes when dubbing a Dolby NR encoded
master tape at high speed.
NORMAL SPEED DUPLICATION
1) Dolby NR has a special dynamic characteristic (with respect
to the time axis) by responding to the frequency and level
and can process signals correctly only in real time. However,
as the high speed duplication alters the relationship between
the audio signals and time considerably, the Dolby NR is
switched automatically off in the high speed duplication mode.
If the source was recorded with Dolby NR, the copies will be
recorded with the same Dolby NR.
1. Insert the blank cassettes in both Wells A and B of all units.
2. Press the TAPE SPEED NORM buttons of all the units so
that the NORMAL indicators of all the units light up.
3. Set the DOLBY NR switches to the desired setting on all the
units to record the tapes with noise reduction.
4. Press the A+B button on the WRC220. All the slave units en-
ter record-pause mode.
2) The difference in signal levels between the duplicated tape
and source master tape should be no more than 1 dB ; if the
PMD520 is used as the source. The PMD520 has been de-
signed so that the difference in level between these tapes is
within the standard when the REC LEVEL control is set to
the center click position.
5. Play the source adjust the REC LEVEL controls of the slave
units so that the red segments of their level meters light only
at peaks in the music.
6. Press the A+B button on the WRC220. All units will start re-
cording.
7. To stop duplication, press the A+B button on the WRC220.
3) Do not connect a tone control or equalizer components for
these components may affect the duplication characteristics.
Note:
4) During High Speed Operation the factory bias setting is used.
Observe the following notes when dubbing a Dolby NR encoded
master tape at normal speed.
QMS (QUICK MUSIC SEARCH)
1) The difference in signal levels between the duplicated tape
and source master tape should be no more than 1 dB ; if the
PMD520 is used as the source. The PMD520 has been de-
signed so that the difference in level between these tapes is
within the standard when the REC LEVEL control is set to
the center click position.
The QMS is available only via a remote control when the well is
in stop or play mode.
1. From the remote control unit, select the well (Well A or B).
2. Using the numeric keys of the remote control unit, input the
number of music programs to be skipped (up to 15).
2) If the master tape was recorded with Dolby NR and the slaves
are to have the same Dolby NR, set Dolby NR off for both the
master and the slave.
3. The input number is shown as "P-
4. Press the FF or REW button of the remote control
unit to start the QMS operation.
" on the display.
5. The unit winds tape at a high speed while detecting blanks
between music programs, and enters pause mode when the
set number of blank space have been detected.
6. Press the PLAY
button to start playback.
14
Medium-frequency gain
The internal oscillator outputs a 3 kHz signal in the range of
AUTO BIAS & EQ SYSTEM
4
dB. This signal is recorded and played to adjust the recording
gain at around 3 kHz so that the playback output becomes the
standard level as shown by B in Figure 3.
System Operation Description
This system sets the recording bias, recording gain, medium-
frequency gain, high-frequency gain and high-frequency peak
automatically so that the characteristics of the tape in use can
be exhibited fully.
Figure 3
C
30
D/A output from the microcomputer
A
B
20
10
0
As shown in Figure 1, the microcomputer adjusts each of the
bias, gain, medium-frequency gain, high-frequency gain and
high-frequency peak levels to one of 64 steps every 100 msec.
by using a 6-bit digital-to-analog converter.
-10
400Hz
3kHz
12.5kHz
20 30 50
100
200 300 500
1k
2k 3k 5k
10k
20k
Frequency (Hz)
Figure 1
High-frequency gain
The internal oscillator outputs a 12.5 kHz signal in the range of
3 dB. This signal is recorded and played to adjust the record-
ing gain at around 12.5 kHz so that the playback output be-
comes the standard level as shown by C in Figure 3.
The following conditions should be met so that the adjustment
can be started.
64 Step
¡ A cassette tape with unbroken erasure protect tabs should
100msec
be loaded.
¡ The mechanism should be in stop mode.
¡ The tape speed should be set to normal. (The adjustment is
Time
not available with the high speed.)
Bias setting
To start the adjustment, press the REC MUTE while pressing
The recording bias is set as shown below according to the char-
acteristics of the record head.
Set frequency: 6.3 kHz
Set bias point: As shown in Figure 2, the bias point is set so that
the output level is lower by -5 dB (Normal or High tape) or -2.5
dB (Metal tape) than the peak point. This setting is the optimum
point for utilizing the tape performance (MOL, third-order dis-
tortion) available from the record head in use.
the REC
button.
Ab will appear on the display followed by a number that will
count down until the adjustment is complete.
Pressing the STOP
If an Error occurs please refer to page 13.
After the adjustment, the tape is rewind automatically to the point
where the adjustment was started.
button during adjustment cancels it.
The AUTO BIAS indicator lights up after the adjustment.
– The AUTO BIAS and EQ system uses 3 memory areas for
the normal, High and Metal tapes.
– The BIAS RESET buttons will return to the standard charac-
Figure 2
teristics for the normal, High and Metal tapes.
Peak point
– The data obtained by the adjustment is held in the EEPROM
even after the unit is turned off.
-5dB (NORMAL)
– In case the adjustment fails, "Err" (error) is displayed on the
counter for 15 seconds, then the factory-set data is recalled.
– In case the adjustment is canceled in the middle or the unit
is turned off during the adjustment, all data adjusted until
then are invalidated.
– The tape is not rewound in case an adjustment error occurs
BIAS level
BIAS point
or the adjustment is canceled in the middle.
– When the data obtained by the adjustment is held in memory
and the BIAS RESET indicator is lit, the adjusted setting is
recalled at the moment a tape is loaded.
Recording gain setting
An internal oscillator outputs a 400 Hz signal in the range of
5
dB. This signal is recorded and played to adjust the recording
gain so that the output level becomes the standard level. This
adjustment is not performed at a specific frequency but varies
only the gain, regardless of the frequency, as shown by A in
Figure 3.
– To use the factory-set data, press the BIAS RESET button
so that the indicator is off.
– Performing this adjustment overwrites the previously stored
adjustment data.
15
CARE AND MAINTENANCE
REPAIRS
Only the most competent and qualified technicians should be
allowed to service your unit. Marantz and its factory trained
warranty station personnel have the knowledge and special
equipment needed for repair and calibration of this precision
instrument.
This section describes the care and maintenance tasks that
must be performed to optimize the operation of your Marantz
equipment.
In the event of difficulty, call the toll-free telephone number listed
on the face of the warranty to obtain the name address of the
Marantz Authorized Service Center nearest you. In many cases,
the dealer where you purchased your Marantz unit may be
equipped to provide service. Please include the model, serial
number of your unit together with a copy of your purchase re-
ceipt and a full description of what you feel is abnormal in its
behavior.
MAINTENANCE
HEAD CLEANING
If the heads are not cleaned for a long period, dirt or dust may
be deposited on the heads and capstans, causing degraded
high-frequency characteristics, volume drop, or degraded re-
cording and erasure performances.
To prevent this, clean the heads, etc., periodically as follows.
1. Turn the power off.
TROUBLESHOOTING
2. As shown in Figure 10, clean the parts which come in con-
tact with tape, including the heads, capstans, tape guides,
pinch wheels, etc., with a cotton swab soaked in head clean-
ing solution or denatured alchohol.
Should faults occur, it is in many cases not necessary to consult
your dealer or technical service department. On the basis of
the following checks you will be able to rectify a number of faults
yourself without difficulty.
If the fault cannot be remedied after the following check, please
consult your dealer or nearest Marantz service agent.
HEAD DEMAGNETIZATION
The tape does not travel.
When a magnetized metallic objects (such as a screwdriver tip,
etc.) comes in contact with a head or capstan, or when the deck
has been used for a long period of time, the head may be
magnetized and noise may be generated. If the head is extremely
magnetized, the high frequencies in recorded tapes could even
be erased due to it. To prevent this, demagnetize the heads and
capstans periodically (every 20 hours of use) using a
commercially-available head demagnetizer. (For the operation,
please refer to the instruction manual supplied with your head
demagnetizer.)
1. Check that the power cord is plugged properly.
2. Check that the POWER switch is set to ON.
3. Check that the tape is rewound.
The tape travels, but no sound is output.
1. Check that the cassette tape is recorded.
2. Check that the mixer, amplifiers and speakers are connected
and functioning properly.
Tape will not record.
1. Check that the protection tabs of cassette tape are not broken.
2. Check that the recording level is set properly.
Caution:
Be sure to turn the power of the cassette deck off before
using a head demagnetizer.
Sound is distorted.
1. Check that the recording level is not too high.
2. Check that the head is not dirty.
CLEANING OF EQUIPMENT EXTERNAL SURFACES
Sound is unstable.
The exterior finish of your unit will last indefinitely with proper
care and cleaning. Never use scouring pads, steel wool, scour-
ing powders or harsh chemical agents (e.g., lye solution), al-
cohol, thinners, benzine, insecticide or other volatile substances
as these will mar the finish of the equipment. Likewise, never
use cloths containing chemical substances. If the equipment
gets dirty, wipe the external surfaces with a soft, lint -free cloth.
If the equipment becomes heavily soiled:
1. Check that the head is not dirty.
2. Check that the pinch wheels (capstans) are not dirty.
3. Check that the tape is wound regularly.
Noise is noticeable.
1. Check that the head is not dirty.
2. Check that the head is not magnetized.
3. Check that the DOLBY NR switch is set properly according
– dilute some washing up liquid in water, in a ratio of one part
to the tape.
detergent to six parts water
Hum interferes with the sound.
– dip a soft, lint free cloth in the solution and wring the cloth
1. Check that cords are connected properly.
out until it is damp
2. Check that there is not any source of magnetism (TV, motor,
transformer, etc.) placed near the unit ?
– wipe the equipment with the damp cloth
3. When this unit and amplifier are stacked, hum noise is some-
times generated depending on the amplifier model. In such
a case, place the components in positions where interfer-
ence does not occur.
– dry the equipment by wiping it with a dry cloth
NOTICE
The tape counters are only approximate measurements of
minutes and seconds and are not intended for timing-critical
applications.
16
RC-5 Command Table
TECHNICAL SPECIFICATIONS
Command
RC-5 Code
1800
0
Track System........................................... 4 Track, 2 Channel
Head System
1
1801
2
1802
Rec Play Head ........................................Hard Permalloy
Erase Head ........................................... Dual Gap Ferrite
Approx Head Life .................................................. 1000H
Recording/Erasure System ........................ AC 105 kHz Bias
Motor System
3
1803
4
1804
5
1805
6
1806
7
1807
Capstan ................................ DC Servo Controlled Motor
Reel .................................................................. DC Motor
Overall S/N, NR off, ”A” weighted
8
1808
9
1809
Next
1832
Normal ..................................................................... 57dB
High ......................................................................... 58dB
Metal........................................................................ 58dB
Overall S/N, Dolby C NR, ”A” weighted
Previous
1833
Monitor Select
Recording Pause
Record Blank
Mechanism A
Mechanism B
Pause
1838
1840
1842
Normal ..................................................................... 74dB
High ......................................................................... 75dB
Metal........................................................................ 75dB
Frequency Response, Rec/Play, NR off
1844
1846
1848
Auto Rewind
Play
185000
1853
Normal ......................................................... 40Hz–16kHz
High ............................................................. 40Hz–17kHz
Metal............................................................ 40Hz–18kHz
Dolby NR effect, B/C , S/N improvement,
Normal Speed
High Speed
Stop
185311
185312
1854
CCIR/ARM weighted .................................. B 8dB, C 17dB
Output
Wind
1852
Rewind
1850
Line....................................................................... 540mV
Phone ..................................................................... 50mV
Output Impedance
Record
1855
Auto Bias
A+B Synchronous Recording
Connect
185509
185510
1856
Line............................................................................47Ω
Phone ...................................................................... 120Ω
Input Sensitivity
Disconnect
1857
Line....................................................................... 100mV
Input Impedance
Line........................................................................ 100kΩ
Fine Speed Control ........................................................ 3%
Wow & Flutter
W RMS................................................... 0.07% (Jis WTD)
Power Supply
Power Requirement .................................. 120V AC 60Hz
Power Consumption ............................................... 0.25A
Dimensions
Width ................................................ 19 inches (483mm)
Height .......................................... 5 3/16 inches (132mm)
Depth........................................... 13 3/8 inches (340mm)
Net Weight ..................................................... 15.4 lbs. (7kg)
Specifications subject to change without prior notice.
53
Figure 4
～
R
MODEL NO. PMD520
AC120V 60Hz 0.25A
LOOP
MADE IN JAPAN
THROUGH
DECK
LINE
B
DECK
LINE
A
REMOTE
RC-5 EXT
A
OUT
IN
OUT
IN
OUT
L
L
L
IN
CONTROL
I
/
O
INPUT
MPX
FILTER
ON OFF
SELECT
A.
B
A
R
R
R
OUT
A
D B
C
G E F
H
I
q
w
FULLY INDEPENDENT DOUBLE CASETTE DECK PMD520
DOLBY B–C NR HX PRO
L
L
-∞ 20 15 10
6
3
0
3
+6dB
-∞ 20 15 10
6
3
0
3
+6dB
R
R
POWER
DOLBY NR
OFF・B・C
DOLBY NR
OFF・B・C
TAPE TIME
CONT
RESET
A+B
RESET
TAPE TIME
AUTO
REW
TAPE SPEED
HIGH
OVERLAP
REC
A+B
NORM
A
B
OFF
REC・PLAY
OFF
REC・PLAY
BIAS
RESET
BIAS
RESET
MONITOR
MONITOR
HP SELECT
3HEAD
3HEAD
DC SERVO CONTROLLED MOTOR AUTO TAPE SELECTOR
DC SERVO CONTROLLED MOTOR
/
AUTO TAPE SELECTOR
/
TIMER
TIMER
5
5
4
0
6
4
0
6
STOP
PLAY
REC MUTE
REC
STOP
PLAY
REC MUTE
REC
3
1
7
3
1
7
9
FINE SPEED
BALANCE
HP LEVEL
PHONES
2
8
2
8
9
10
10
AUTO BIAS
AUTO BIAS
REC LEVEL
REC/PLAY
REC/PLAY
! ! !
e
!
!
!
e
a
b
L
L
-∞ 20 15 10
6
3
0
3
+6dB
-∞ 20 15 10
6
3
0
3
+6dB
R
R
r !
2
DOLBY NR
OFF・B・C
DOLBY NR
OFF・B・C
DOLBY NR
OFF・B・C
DOLBY NR
OFF・B・C
TAPE TIME
CONT
RESET
A+B
RESET
TAPE TIME
TAPE TIME
CONT
RESET
A+B
RESET
TAPE TIME
e
c
d
AUTO
REW
TAPE SPEED
HIGH
OVERLAP
REC
i
o
AUTO
REW
TAPE SPEED
HIGH
g
f
OVERLAP
REC
y
NORM
NORM
t
u
OFF
REC・PLAY
OFF
REC・PLAY
BIAS
RESET
BIAS
RESET
OFF
REC・PLAY
OFF
REC・PLAY
BIAS
RESET
BIAS
RESET
MONITOR
MONITOR
MONITOR
MONITOR
TIMER
TIMER
TIMER
TIMER
! ! !
h i
54
CASCADE OPERATION
Figure 5
IN 1
IN 2
IN 3
OUT
MIC
MIXER
～
R
MODEL NO. PMD520
AC120V 60Hz 0.25A
LOOP
MADE IN JAPAN
THROUGH
DECK
LINE
IN
B
DECK
LINE
IN
A
REMOTE
RC-5
A
OUT
OUT
OUT
EXT
EXT
EXT
L
L
L
IN
CONTROL
I
I
I
/
/
/
O
INPUT
MPX
SELECT
FILTER
ON OFF
A.
B
A
R
R
R
OUT
～
R
MODEL NO. PMD520
AC120V 60Hz 0.25A
LOOP
THROUGH
OUT
MADE IN JAPAN
DECK
LINE
IN
B
DECK
LINE
IN
A
REMOTE
RC-5
A
OUT
OUT
L
L
L
IN
CONTROL
O
INPUT
MPX
FILTER
ON OFF
SELECT
A.
B
A
R
R
R
OUT
～
R
MODEL NO. PMD520
AC120V 60Hz 0.25A
LOOP
THROUGH
OUT
MADE IN JAPAN
DECK
LINE
IN
B
DECK
LINE
IN
A
REMOTE
RC-5
A
OUT
OUT
L
L
L
IN
CONTROL
O
INPUT
MPX
FILTER
ON OFF
SELECT
A.
B
A
R
R
R
OUT
55
DUPLICATION SYNCHRONIZATION
WRC220
Figure 6
TAPE A
TAPE B
CD
AUTO
CD
A
B
TAPE A
TAPE B
CD
AUTO
REW
PREV
REW
FF
NEXT
BIAS
1×
2×
PLAY
STOP
NORMAL
SPEED
HIGH
SPEED
RECORD
A+B
RECORD
RECORD
MUTE
AUTO
BIAS
UNIT #1
UNIT #2
UNIT #3
～
R
MODEL NO. PMD520
AC120V 60Hz 0.25A
LOOP
MADE IN JAPAN
THROUGH
DECK
LINE
IN
B
DECK
LINE
IN
A
REMOTE
RC-5
A
OUT
OUT
OUT
EXT
EXT
EXT
L
L
L
IN
CONTROL
I
I
I
/
/
/
O
INPUT
MPX
SELECT
FILTER
ON OFF
A.
B
A
R
R
R
OUT
～
R
MODEL NO. PMD520
AC120V 60Hz 0.25A
LOOP
THROUGH
OUT
MADE IN JAPAN
DECK
LINE
IN
B
DECK
LINE
IN
A
REMOTE
RC-5
A
OUT
OUT
L
L
L
IN
CONTROL
O
INPUT
MPX
FILTER
ON OFF
SELECT
A.
B
A
R
R
R
OUT
～
R
MODEL NO. PMD520
AC120V 60Hz 0.25A
MADE IN JAPAN
DECK
LINE
IN
B
DECK
LINE
IN
A
REMOTE
RC-5
OUT
OUT
L
L
L
IN
CONTROL
O
INPUT
MPX
FILTER
ON OFF
SELECT
A.
B
A
R
R
R
OUT
56
Metal tape
detection hole
High tape
detection hole
Figure 7
Figure 8
Figure 9
Be sure to close the casette holder cover when the
unit is not to be used for a long period of time.
Figure 10
57
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