Pioneer RT-1020L User manual

Walnut venoered side panels are used in the con
struction of this cabinet.
flfl PIONEER

Thi> operating instruction booklet is available in
common for the operation of both models
RT-1020L and RT-1020H, the only difference of
which is “'l ape running speeds/’ Please note that
“RT-1020L” and “RT-1020H” in the explanations
are referred to as “RT-1020L/H.”
RT-1020L HI: 19cm/s (7-'/2 ips)
LO: 9.5cm/s(3-3
/4 ips)
RT-1020H HI: 38cm/s (15 ips)
LO: 19cm/s (7- 1
/* ips)
WHERE TO PLACE YOUR DECK
Model RT-1020L/H can be operated in upright as
well as horizontal position. When selecting the
place for your deck, avoid the following conditions
as they would affect the machine’s performance
and lead to trouble:
•Direct sunlight and the vicinity of heaters, etc.
•High humidity, poor ventilation
•Dust and dirt
IMPORTANT PRECAUTIONS
Always Keep the Tape Heads Clean
Dirt and tape abrasions on the tape head surfaces can
deteriorate the sound quality and lead to other trouble.
Make it ahabit to always clean the tape heads with the
supplied cleaning bar before each use (Fig. 1). For
stubborn deposits that the cleaning bar cannot remove,
refer to “Care &Maintenance'* on page 21.
Always Use Two Reels of the Same Size
The use of different size reels can obstruct proper tape
transport, causing damage to the tape. Always use two
reels of the same diameter and, preferably, shape. If one
reel is thinner than the other, place the supplied sheet
on the reel base for the thinner reel.
Always Apply the Reel Clamper if the Deck is in Upright
Position
Reel clampers to hold the reels in place are built into
the tips of the center shafts. Refer to Fig. 2. Place the
reel on the shaft, then pull up and twist the tip of the
shaft so that its protrusions will hold down the reel.
CAUTION!
Polish heads
carefully Fig. 1
RKKLS FALLING OFF WIIILK IN MOTION CAN BE
DANGEROUS. Pull tip of shaft /\
towards you,
then twist.
Fig. 2
The vicinity of electrical appliances that gener-
ate magnetism, such as TV sets, motors, trans-
formers, etc.
NOTE:
This model is to work on 120V AC. However,
it can also be adjusted for use on other voltages
at Pioneer authorized Service Center. For fur-
ther information, contact Pioneer Electronic Corp.
CONTENTS
WHERE TO PLACE YOUR DECK 2
IMPORTANT PRECAUTIONS 2
FEATURES 3
PARTS AND CONTROL FACILITIES 4
ASSEMBLY OE ACOMPONENT
STEREO SYSTEM 7
TAPE DECK CONNECTIONS 7
BASIC OPERATING INSTRUCTIONS 9
PLAYBACK 11
RECORDING 13
LIVE RECORDING WITH
MICROPHONES 16
4-TRACK MONOPHONIC RECORDING .... 16
MIXING 17
SOUND-ON-SOUND RECORDING 17
ECHO RECORDING 18
WHEN EMPLOYING DIGITAL TIMER 19
MAGNETIC TAPE 20
CARE &MAINTENANCE 21
KEYS TO SUCCESSFUL RECORDING
TECHNIQUE 22
TROUBLE SHOOTING CHART .../. 23
SPECIFICATIONS AND SCHEMATIC
DIAGRAMS Enclosed herewith
2

PIONEER
FEATURES
Sturdy Construction to Professional Standards
All mechanical parts are assembled on achassis made of
5mm thick aluminum of high dimensional precision and
supported by aunified diccast frame. This heavy-duty
construction gives high accuracy and long durability.
Precision Tape Transport Can Accommodate
10-inch Reels
The capstan is driven by a4/8-polc hysteresis synchronous
motor with alarge 100mm flywheel to maintain superb
speed accuracy without wow and flutter. The capstan
itself is machined to extremely precise tolerances.
The reels are driven by apair of specially designed 6-pole
inner rotor induction motors which combine the ideal
torque characteristics of eddy current motors with the
high starting torque of induction motors. No excessive
stress is applied to the tapes, thanks to the low rotational
inertia of the motors and the solenoid controlled dif-
ferential band brakes.
Three Tape Heads Including 4/2-channel
Playback Head
The combined 4/2-channel playback head features highly
precise track alignment, intimate lape-to-head contact due
to its hyperbolic curvature, and gives excellent performance
in regard to phase accuracy, linear frequency response
and crosstalk. In the recording head only 2-channel
stereo recording is possible much attention has been
paid to obtain optimum bias, signalto-noise ratio and
frequency response characteristics. Ihe three-head system
of course permits professional after-tape monitoring ol
arecording in progress.
Direct Coupled Playback Amplifier of Wide
Dynamic Range
For each of the four channels, a3-stage direct coupled
amplifier with low-noise silicon transistors is provided.
Its dynamic range goes it) beyond 20dB above OVU level.
2-track prerecorded master tapes can be played, too.
Separate Recording Amplifiers for Line and Mic
Inputs
The 2-channel recording amplifier features an excellent
signal to-noise ratio and awide dynamic range of 50dB.
Ihe microphone inputs are sensitive enough to permit the
use of studio-quality 600-ohm condenser microphones.
To maintain stable recording conditions regardless of
AC line voltage fluctuations or temperature changes, a
stabilized voltage supply has been adopted, while abias
current limiter has been included in the bias supply
oscillator circuit.
Independent level controls for the LINt and MIC inputs
permit effective mixing of program sources, "sing-along"
recording, sound-on-sound recording and other professional
processing methods.
Click Noises Prevented by Electronic Switching
Solid state electronic not mechanical switches in the
recording and playback equalizer circuits and adynamic
relay in the recording bias circuit prevent those unpleasant
click noises caused by normal switches.
3-position Bias Selector, 2-position Equalizer
Selector
To make the best of the extra quality potential of low
noise, high output tape (L.H. tape), proper bias current
and equalization are of paramount importance. On model
RM020L/H, biascurrcnt and equalization selector switches
have been provided to establish optimum recording
conditions for all types of recording tape now on the
market.
Swift-action Electronic Pushbutton Control with
Perfect Tape Protection
All transport functions are switched by electronic solenoid
pushbuttons. You can switch from any mode directly to
any other mode without having to push the stop button
and without fear of undue stress on the tape.
Automatic Recording in Your Absence
Ihe tape deck can be preset lor recording and, with the
help of an optional timer, can be energized at a preselected
time, for example to record an IMprogram that you
do not wish to miss.
Auxiliary Controls Worthy of aStudio Machine
Iape tension can be changed according to reel size.
Other controls include separate record switches for both
channels, a"recording" indicator equipped with alight
emitting diode, 4-channel/2-channel playback selector,
tape/source monitor switches lor front and rear channels,
aheadphone jack, etc.
Function Begets Form
Outward appearance matches technical excellence the
impressive looking control panel, large-sized LEVEL meters
and handsome controls are visual expressions of the high
level of technical performance that you can expect from
this tape machine.
3

PARTS AND CONTROL FACILITIES
PAUSE SWITCH
For short interruptions of tape travel. In position ON,
the tape is stopped while the unit remains in its previous
-recording or playback mode. At OFF, the tape
resumes travel at normal speed. Note, however, that the
PAUSE switch does not function during fast forward
or rewind.
LEVEL METERS
Indicate the recording and playback signal levels.
MIC INPUT JACKS
Iwo microphones lor stereo recording can be connected
here. Low-impedance (600oh ms) as well as high-impedance
(I Ok ohms to 50k ohms) can be used, but the cables
must have standard 60mm plugs.
POWER SWITCH
Push this button to turn the unit ON, push it again and
release it to turn the power OFF.
REEL SIZE SWITCH
Changes tape tension in accordance with reel size. For
7-inch (17cm) or smaller reels, push the button in.
When using 10-inch (26cm) reels, release the button.
IMPORTANT!
ALWAYS USE TWO REELS OF THE SAME SIZE.
TAPE SPEED SELECTOR
Pushbutton depressed: LO (low) tape speed.
Pushbutton released: HI (high) tape speed,
lo switch from LO to HI, push the button lightly
will return to released position.
RT-I020L HI: I9cm/s (7-1/2 ips) RT-I020H HI:
LO: 9,5cm/s (3-3/4 ips)
MIC RECORDING LEVEL CONTROL
Controls the recording level of live microphone recordings.
Clockwise rotation increases the recording level. This
control also governs the recording level when arecording
is made through the REC/PH connector (DIN- type) on
the rear panel.
LINE RECORDING LEVEL CONTROL
Controls the recording level that the signal is fed into
the INPUT (REC) jacks on the rear panel. Clockwise
rotation increases the recording level.
NOTE:
The MU' and LINE recording level controls both consist
of apair of friction coupled knobs; the inner knob
controls the left channel, the outer ring, the right
channel Usually, knob and ring rotate together, but
you can rotate one while holding the other in place
with your other hand
3Kcm/s (I5ips)
LO: l9cmM7-K.ps)
RECORDING INDICATORS
REC-L: Red light emitting diode lights up when the
lelt channel is in recording mode.
REC-R: Lights up when the right channel is in recording
mode.
For stereo recordings, confirm that both indicators are
lighted.

(TAPE COUNTER
Before starting a recording, reset the IAPt COUNfER to
"0000" by depressing the reset button. Use of the
IAPE COUNTER will make it easy to locate the starling
point of arecording.
“* TENSION ARM
Regulates tape tension, but also functions as an automatic
shut off sensor. If the tape is slack, breaks or runs out,
the automatic shut-off mechanism slops the tape transport
and returns all function buttons to neutral position.
—FUNCTION BUTTONS
STOP: Stops tape travel from any mode,
returns unit to neutral position.
PLAY: Makes tape travel at selected
speed. For playback, push this
button. For recording, push this
and the REC button.
REC: Activates recording circuits. To
start arecording, hold this
button down while pushing the
PLAY button.
*>> FAST FORWARD: Makes tape travel at high speed
from left to right.
<4 REWIND: Makes tape travel at high speed
from right to left.
NOTE
:
Unlike inconvenience of some kinds of tape machines on
the market, this model helps you switch from one mode of
operation to another without pushing the STOP button
That is. there is no need to push the STOP button when
switching from either FAST FORWARD or REWIND
mode to another, for instance, you can switch directly to
PLAY. Note, however, that such switching operation
always stops the tape travel once, momentarily, Afew
seconds more, and it will soon run at normal speed
•To go directly from FAST FORWARD or REWIND
to PLAY, refer to page I(I.
•For using thin tape in thickness, refer to NOTE on
page 12.
REC EQ SWITCH
Selects the recording equalization characteristics in ac-
cordance with the type of tape to be used.
STD: For recording on normal, conventional tape.
LH: For recording on low-noise high-output tape.
This switch has no function in playback.
REC BIAS SWITCH
Selects the proper bias current in accordance with the
type of tape to be used.
STD: For recording on normal tape. Smallest bias
current.
LH1, LH2: For recording on low-noise high output tape.
LH 2gives the strongest bias current.
Detailed instructions about the functions of the REC
BIAS and RLC LQ switches are given on page 14.
OUTPUT LEVEL CONTROL
Controls the output level that recorded tape is played
back. This is afriction-coupled type consisting of the
inner and outer knobs.
INNER KNOB: FRONT (CH.1, CH.3)
OUTER RING: REAR (CH.2, CH.4)
Usually, knob and ring rotate together, but you can
rotate one while holding the other in place with your
other hand.
PHONES JACK
Stereo headphones can be connected here for monitoring
or private listening. The METERS switch selects the
channels that you hear through the headphones.

PIONEER
-REC SWITCHES (L, R)
To make arecording, one or both of these switches
must be set at ON.
L: Recording on left channel
R:Recording on righ tchannel
For stereophonic recordings, set both switches at ON.
-PLAY SWITCH
Selects 4channel or 2-channel playback mode.
4CM: Playback of 4-channel recorded tapes
2CH: Playback ol 2-channel recorded tapes
-MONITOR SWITCHES (L, R)
Arecording in progress can be monitored (via speakers
or headphones) in either of two ways -the original
SOURCE sound, or the recorded TAPE sound as picked
up by the playback head. By switching back and forth
between positions SOURCE and TAPE/PLAY, you can
compare the original sound quality with that of the
recording and take corrective action if necessary.
Ihe left switch controls the left channel, the right
switch, the right channel.
-METERS SWITCH
Selects the channels to be displayed by the level meters
(and supplied to the headphone jack) when playing
4-channel recorded tapes.
FRONT: Front channels (CH. I*left, CH. 3cright)
supplied to level meters and headphones.
REAR: Rear channels (CH. 23left, CH.4 »right)
supplied to level meters and headphones.
AC POWER IN
Connect the AC power cord here.
—GROUND TERMINAL (GND)
Grounding is not necessarily required, but in the case
of hum or externally induced noise, the GND terminal
on the amplifier, or directly to earth.
—REC/PB CONNECTOR
Acombined input and output, for 2-channcl operation
only. If your stereo amplifier has an identical REC/PB
connector, you can establish all recording (INPUT), and
playback (OUTPUT) connections with asingle DIN cable
(optional) available from your Pioneer dealer.
Note that if connection is made to the REC/PB connector,
the recording level must be controlled with the MIC
level controls.
—INPUT (REC) TERMINALS
For recording, connect these inputs to the TAPE REC or
similar outputs of your stereo amplifier by means of the
supplied phono cables. Be sure to connect left channel
to LEFT, right to RIGHT.
—OUTPUT (MON) TERMINALS
For playback, connect these outputs to the TAPE
MONITOR, TAPE PLAYBACK or similar inputs on your
stereo or 4-channel amplifier.
With a4-channel amplifier:
FRONT LEFT to FRONT LEFT (CH. 1) of amplifier
FRONT RIGHT to FRONT RIGHT (CH. 3) of amplifier
REAR LEFT to REAR LEFT (CH. 2) of amplifier
REAR RIGHT to REAR RIGHT (CH. 4) of amplifier
With a2-channcl amplifier:
FRONT LEFT to LEFT CHANNEL of amplifier
FRONT RIGHT to RIGHT CHANNEL of amplifier
6

ASSEMBLY OF ACOMPONENT STEREO SYSTEM
Model RT-1020L/H is capable of 4-channel and 2-channel
playback as well as 2-channel recording but incapable of
4-channel recording. When combined with a4-channel
amplifier (such as Pioneer model QA-800A) and speakers,
it will give you superlative sound from 4-channel
prerecorded tapes. Instead oT a4-channel amplifier,
you can also use two 2-channel amplifiers. When con-
nected to only one stereo amplifier, model RT-1020L/H
functions as anormal stereo tape deck for recording and
playback, as shown in Figs. 3and 4.
4-CHANNEL
STEREO AMPLIFIER
(e.g. Pioneer QA-800A)
—I»ft oo••O O I
—It :oo••.ttt |
oo a
RT-1020L/H
FRONT
TAPE DECK CONNECTIONS
WITH A4-CHANNEL STEREO AMPLIFIER
Connections between tape deck and amplifier must be
made with the supplied phono cables as shown in Fig. 5.
Playback Connections
TAPE DECK AMPLIFIER
OUTPUT FRONT LEFT —TAPE INPUT
FRONT LEFT (CM. 1)
OUTPUT FRONT RIGHT TAPE INPUT
FRONT RIGHT (CH. 3)
OUTPUT REAR LEFT TAPE INPUT
REAR LEFT (CH. 2)
OUTPUT REAR RIGHT TAPE INPUT
REAR RIGHT (CI1. 4)
Recording Connections
Model KT-1020L/H cannot make 4-channel recordings.
For 2-channel stereo recording, connect the INPUT
(REC) terminals to the amplifier's TAPE REC or similar
tape outputs with tin* supplied phono cables, as shown
in Fig. 5. If the amplifier has front and rear channel
tape outputs, connect to the front channels unless you
specifically want to record the rear channel signals.
soTt:
Connections arc basically the same as in usmu hen -channel
amplifiers
wCH. 1CH. 3
LEFT ^RIGHT
.CH. 2CH. 4a
SPEAKER SYSTEMS Fig. 3
iTf
OO
2CHANNEL
STEREO AMPLIFIER
(e.g. Pioneer SA-9100)
I
OoOOo Oo|
w* 8v.vOvvOI
RT-1020L/H
SPEAKER
SYSTEMS LEFT RIGHT
INPUT OUTPUT
HfC.PB RPC MON
m0&
Fig. 4
LEFT
HIGH T
RT-1020L/H WHQNT
FURNISHED *
CORDS I•»
RECORDING PLAYBACK
OUTPUT INPUT
TAPE
REC MON L
<S—r-0 CM ’Q *
htj -H—
®
cm3 wi
R1I
II
•Il
FRONT
|LL0ch 2Qi>
l'r 0ih -*0 s:i>-
REAR
JACKS OF 4CHANNEL STEREO AMPLIFIER
Fig. 5

WITH A2-CHANNEL STEREO AMPLIFIER
Playback Connections
Connect the OUTPUT (MON) FRONT terminals of the
tape deck to the TAPE MON or similar tape inputs of the
amplifier, as shown in Fig. 6. Use the supplied phono
cables.
OUTPUT FRONT LEFT —TAPE INPUT
(MONITOR)
LEFT CHANNEL
OUTPUT FRONT RIGHT— TAPE INPUT
(MONITOR)
RIGHT CHANNEL
Recording Connections
Connect the INPUT (REC) terminals of the tape deck
to the TAPE REC or similar tape outputs of the
amplifier, as shown in Fig. 6.
INPUT (REC) LEFT —TAPE REC LEFT
CHANNEL
INPUT (REC) RIGHT TAPE REC RIGHT
CHANNEL
Connection Through DIN-type REC/PB Connector
If your stereo amplifier is equipped with aDIN-type
REC/PB connector (as most modern amplifiers and
receivers are), all playback and recording connections
can be made by linking this to the REC/PB connector of
the RT-1020L/H with asingle DIN cable (Fig. 7). Such
acable is available from your Pioneer dealer.
INPUT OUTPUT
REC MON
I I ®&
RT-1020L/H III!
FM>N
FURNISHED 111
CORDS hA1. A
JT-
RECORDING PLAYBACK
OUTPUT INPUT
\1
9
TAPE
REC MON L
00*>
<1 S>-
V
JACKS OF 2CHANNEL STEREO AMPLIFIER
Fig. 6
RT-1020L/H
REC PI
REC/P.B.
CABLE
(eg Pioneer
PP 101
)
ill
Connection to these
lacks not required
TAPE REC/P.B.
CONNECTOR (DIN)
ii «i
TAPE
REC PB
2CHANNEL STEREO AMPLIFIER Fig. 7

PIONEER
BASIC OPERATING INSTRUCTIONS
TAPE THREADING
As described in the foregoing, always use two reels of the
same size. You will find it practical to use chiefly 10-inch
or 7-inch reels rather than the very small ones.
1. Place the full reel on the left reel base, the empty reel
on the right base. When using the supplied or similar
10-inch reels, you also need the supplied reel adaptors.
See Fig. 8. These adaptors are not needed with 7-inch
or smellier reels.
Differences in reel thickness can be compensated by
placing the supplied sheet under the thinner reel as
shown in Fig. 9.
2. Secure the reels in place by pulling up the tips of
the center shafts and twisting them about 3to 4mm
to the left or right so that their protrusions will hold
the reels down. Make it ahabit to always secure the
reels in this way —unsecured reels could fall off and
cause damage (Fig. 10).
3. When using 7-inch or smaller reels, push down the
REEL SIZE switch. With 10-inch reels, no need to
push it down (Fig. 11).
4. Before threading the tape, lock the guide roller arm,
as shown in Fig. 12. This locking mechanism is
provided for convenience in threading the tape. Then
thread the tape as shown in Fig. 13. Be sure to insert
the leading end of the tape correctly into the take-up
reel slot, since if it is not properly secured, slippage
may occur when the tape is running. Turn the reel 3
or Irevolutions to take up any tape slack.
Do not forget to release the guide roller arm lock
lx* fore running the tape.
REEL ADAPTOR
Fig. 10 Fig. 11
TAKE UP
REEL
PINCH
ROLLER
GU IDE —
ROLLER
4TENSION
ARM
GUIDE ROLLER
•Above numbers indicate tape threading Sequence
9

TAPE TRAVEL (Fig. 14)
1. First, confirm that all function buttons are in neutral
position. Otherwise, push the STOP button once.
2. Push the POWER switch. The LEVEL meters will
light up and the capstan will begin to rotate.
3. Push the PLAY button. The tape now travels from
left to right.
4. Push the STOP button. The tape stops.
TAPE SPEED SELECTION (Fig. 15)
As long as the SPEED selector is released, the speed
remains set at III. For 1.0 speed, push the selector. To
release it again, push it once more.
RT-1020L HI: 19cm/s (7-V& ips)
LO: 9.5cm/s (3-% ips)
RT-1020H III: 38cm /s (15 ips)
LO: 19cm/s(7-'/jips)
THE PAUSE SWITCH (Fig. 16)
The tape traveling at normal speed can be stopped by
setting the PAUSE switch at ON. Return it to OFF,
and the tape will resume travel. Note, however, that the
PAUSE switch does not function during fast forward
or fast rewind.
FAST FORWARD, REWIND (Fig. 17)
1. For fast winding from the left to the right, push the
FAST FORWARD button. For fast rewinding, push
the i* REWIND button.
2. To stop the tape, push the STOP button.
3. If the tape runs out or breaks, it will stop automatic-
ally.
Bv employing the PAUSE switch, tape motion can be
immediately changed from FAST FORWARD or REWIND
to PLAY (see Fig. 18).
When the PLAY button is depressed while the tape is in
FAST FORWARD or REWIND, afew seconds will elapse
before normal speed is attained. This is to protect the
tape. In situations such as looking for the start of a
recorded passage, cueing, etc., where it is desired to set
the machine immediately to PLAY, perform the following
steps.
1. Set the tape motion to 8> FAST FORWARD or
<3 REWIND.
2. Depress the PLAY button.
3. After the tape has come to a complete stop, operate
the PAUSE switch ON-OFF. By doing this, the tape
will begin to move at normal speed.
It is important to wait until the tape has stopped
completely before operating the PAUSE switch to
avoid possible damage to the tape or mechanism.
3Fig. 14
sniro
i©
Push Fig. 15
>wuW
Fig. 17
/
/
Fig. 18
Above numbers indicate operating sequence.

PIOINJEER
PLAYBACK
TAPE THREADING
Thread the tape to be played on the tape deck, as
explained on page 9. lie sure to use two reels of the same
size and to secure the reels with the reel clampers.
PLAYBACK PROCEDURE
1. Push the POWER switch to turn the unit on.
(Fig. 19). The level meters light up and the capstan
begins to rotate. Note, however, that the tape must
be taut —with slack tape, the capstan will not rotate.
2. Confirm that the REEL SIZE switch is properly
Set (Fig. 19). When using 7-inch or smaller reels,
push the REEL SIZE switch in. For 10-inch reels,
do not push it in. To release this switch when it’s
locked, push it once again.
Make it ahabit to check the REEL SIZE switch
position whenever you operate the unit. Wrong
reel size setting can cause malfunctions in the tape
transport; too tight winding of the tape and, if the
condition is permitted to persist, even damage to
your tapes.
3. Set the 'PAPE SPEED selector to the speed at which
the tape was recorded (Fig. 19).
RT-1020L HI: 19cm/s (7-1/2 ips)
LO: 9.5cm/s (3-3/4 ips)
RT-1020H HI: 38cm/s (15 ips)
LO: 9.5cm/s (7-1/2 ips)
4. Set the PLAY switch to 4-channel or 2-channel
operation (Fig. 20). If the tape contains a4-channel
recording, set the switch at 4CH; if it contains
a2-channel stereo recording, at 2CH. If a2-channel
recorded tape is played over a4-channel amplifier/
speaker system with the PLAY switch set at 4CH,
the reverse side of the tape (i.e. the other two tracks)
will be heard in reverse from the rear speakers.
5. Set the METERS switch at FRONT (Fig. 20). In
position REAR, the LEVEL meters indicate the
signal level of the rear channels.
6. Set both MONITOR switches at position TAPE/
PLAY. Playback of the signal from recorded tape is
not possible if these switches are at SOURCE.
See Fig. 20.
7. Push the PLAY button (Fig. 21). The tape begins
to travel from left to right.
8. Control the output level of the signal from the
recorded tape by rotating the OUTPUT LEVEL
CONTROL (Fig. 22), with care taken not to make
the needles of the LEVEL METERS swing over OdB.
If the input level of the stereo amplifier is low, the
sound being played back may be distorted. In such a
case, try to make the output level lower by rotating
the OUTPUT LEVEL CONTROL to the left
(Continued on the Next Page)
EliWJdzl REEL SPEED
OFF ON OOHl LO
Push
Fig. 19
PLAY METERS MONITOR
Fig. 20
NOTE:
In -1 channel play bach, the METEUS awitch
controls the signals supplied to the LEVEL meters
and the headphone jach. Switch position FRONT:
Meters indicate signal levels and headphones
reproduce front channels (CII. IiV 67/ 3). Switch
position REAR Meters and headphones mve rear
channel signals (CII 2and CH. I).
Fig. 21
OUTPUT
FRONT—S)— REAR
MIN MAX
OUTPUT LEVEL CONTROL Fig. 22

(counterclockwise). If the output levels of other
stereo components such asastereo tuner, turntables,
etc. are also low, in the same manner, try to make
those levels match the same as the RT-1020L/H’s by
controlling the OUTPUT LEVEL CONTROL of
this tape deck.
9. Set all controls on your 4-channel or 2-channel
amplifier for tape playback. Volume and tone must
be adjusted with the controls on the amplifier.
10. To interrupt playback momentarily, set the PAUSK
switch to position ON (Fig. 23).
11.To stop playback, push the STOP button (Fig. 23).
When the tape runs out, however, the unit will be
stopped automatically by the auto-stop switch
which is linked to the tension arm.
FAST FORWARD
1. Push the FAST FORWARD button IFig. 24).
The tape will be wound from left to right at fast
speed.
•To switch from fast forward directly to playback,
simply push the PLAY button. The tape will
stop for afew seconds and then resume travel at
rated speed.
•If you have List-forwarded the tape too far, simply
push the «REWIND button. The tape will be
stopped and then rewound.
2. To stop the tape in fast forward mode, push the
STOP button.
REWINDING
1. Push the iREWIND button. The tape will be rewound
from right to left at fast speed. See Fig. 25.
•To switch from rewind mode to playback, simply
push the PLAY button. No need to push the
STOP button.
•If you have rewound the tape too far, simply push
the FAST FORWARD button.
2. To stop the tape in fast rewind mode, push the STOP
button. When the tape runs out, the unit will stop
automatically.
NOTE:
The advanced design of model RT-1020L/H permits it to be
switched directly from any operation mode to any other
operation mode (for example from fast forward to play bach).
To save time, it is designed to be unnecessary to push the STOT
button between different modes of transport
Of avariety of magnetic tapes available on the market, thin tape
in thickness.used for long hours of continuous playing, must be
taken of care not to change the TLA Yor STOP mode directly
from the FAST FORWARD mode, for example
Push the PLAY or STOP button only when reel rotation becomes
slow shortly after switching the REWIND mode from the
EAST FORWARD mode or vice versa
PAUSE
Fig. 23
Fig. 24
pZ>
r
l
Fig. 25
With the help of an optional timer (available at
electrical appliances stores
)
%you can use your tape
deck to lullaby you to sleep or to wake you up
with music (refer to page 19).
12

PIONEER
RECORDING
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Thread the tape as described on page 9.
Push the POWER switch to turn the unit on
(Fig. 26).
Confirm that the REEL SIZE switch is set correctly.
When using 7-inch or smaller reels, push the switch
down. For 10-inch reels, do not push it down. When
locked, the switch can be released by pushing it once
again. Always confirm that the REEL SIZE switch is
in the correct position. Wrong setting can impair
the tape transport or cause the tape to be wound
too tightly or even damaged. Refer to Fig. 26.
With the TAPE SPEED selector select the desired
tape speed (Fig. 26).
RT-1020L HI: 19cm/s (7-1/2 ips)
LO: 9.5cm/s (3-3/4 ips)
RT-1020H HI: 38cm/s (15 ips)
LO: 19cm/s (7-1/2 ips)
38cm/sand 19cm/s are most suitable for recording
music. 9.5cm/s, suitable for recording conversation,
gives longer recording time and greater tape econom-
y. albeit ataslight loss in sound quality.
Set the REC BIAS and REC EQ switches in
accordance with the type of tape to be used. Refer
to Fig. 27. Agreat variety of normal and “low
noise high output” (LH) tapes are now on the
market. For details, refer to paragraph “The REC
BIAS and REC EQ switches” on the next page.
Set both REC switches (L and R) to position ON
(Fig. 28).
Set the PLAY switch at position 2CH (Fig. 28).
Set the METERS switch at position FRONT
(Fig. 28).
Set both MONITOR switches at position SOURCE .
The level meters now indicate the level of the
incoming signal so that you can adjust the LINE
recording level control for optimum recording
quality. If the deck is connected to the amplifier
via its DIN-type REC/PB connector, the recording
level must be adjusted with the MIC recording level
control. Refer to Fig. 29. For details, refer to
paragraph "Proper Recording Level Adjustment”
on page 15.
Push the REC and PLAY buttons simultaneously
(Fig. 30). The recording indicators light up, the tape
begins to travel, and recording starts.
To ascertain the quality of the recording being made,
set the MONITOR switches at position TAPE/PLAY
(Fig. 31). You now hear the taped sound, as picked
up by the playback head, through headphones or
speakers. If this check reveals poor sound quality,
check the possible sources of trouble such as
recording level adjustment, wrong REC BIAS or
IsMVldzl REEL
OFF ON OOSPEED
HI LO
Fig. 26
Fig. 27
HtC Pi A* MITFHS MOMTUH
O0-~ O^Q &
Fig. 28
MIC L»Nf
l|M §> »*«*••'
INPUT
MIC RECORDING LINE RECORDING
LEVEL CONTROL LEVEL CONTROL
Fig. 29
Fig. 30
(Continued on the Next Page)

PAUSE
REC EQ setting, dirty tape heads, inferior tape
quality, etc., and start anew.
12. To interrupt the recording momentarily, set the
PAUSE switch at ON. See Fig. 32.
13. Whenever you want to stop the recording, push the
STOP button (Fig. 33).
THE REC BIAS AND REC EQ SWITCHES (Fig. 34)
The REC BIAS Switch
Aproper amount of bias current must be applied to the
tape in order to obtain proper frequency response and
distortion- free recordings. This bias current varies with
the type of tape to be used.
Actually, almost all brands of tapes not otherwise marked
can be considered “normal” and recorded with the
REC BIAS switch set at STD. So-called "low-noise
high-output” tapes, on the other hand, require more
bias current —the REC BIAS switch should be set at
LIT 1or LH 2.
•If arecording is made on low-noise high-output tape
with the REC BIAS switch at STD, insufficient bias
current will cause an unnatural boost in the high sound
range, leading to distortions.
•Conversely, arecording made on normal tape with the
switch at LH 1or LH 2will suffer from poor high
frequency response.
The REC EQ Switch
The amount of high frequency boost that must be applied
to the signal in the recording process differs for normal
and low-noise high-output tapes and must be selected
along with the bias current. This is done by the REC EQ
(recording equalization) switch, set it at STD for normal
tapes, at LH for low-noise high-output tapes.
•Recording on LH tape with the switch at STD will
cause an unnatural boost in the high range.
•Conversely, recording on normal tape with the switch
at LH will cause inferior response in the high frequency
range.
Switch Settings for Common Brands of Tape
The right-side table gives recommended bias and equali-
zation switch settings for anumber of common brands of
tape. These settings have been found optimum in actual
recording tests with model RT-1020L/H and therefore
are not necessarily identical with the tape manufacturers'
specifications.
If you want your favorite tone quality, select BIAS and
EQ switch setting by switching TAPE MONITOR.
OF F
ON Fig. 32
REC <4^
1%
i
Push
Fig. 33
REC
BIAS —EQ
Fig. 34
\LQ[ SID
BIAS _:
LH
—
STD
100, 150,
other
normal tape
Some long-play-
ing tapes give
good results at
this selling.
——4
LH 1
Some long-
playing (ISO)
tapes
SCOTCH 203,
206
SONY SLH
BASF 35LH
MLMOREX
LH 2
SCOTCH 203, 206
(Causes lower re-
cording level bui
gives correct freq.
response.
1DK SD
MAXELL LNL
AGFA PE36
HIIACHI UO D
Table 1

PIONEER
PROPER RECORDING LEVEL ADJUSTMENT
When the unit is in recording mode and the METERS
switch at FRONT position, the LEVEL meters indicate
the recording level. Adjust the LINE or MIC recording
level controls in such away that the meters deflect as
far as OdB at peak volume. Refer to Figs. 35. and 36.
If the meters are allowed to peak out —i.e. hit the
end of the scale at +3dB —the recording will sound
distorted.
Use of the PAUSE Switch for Level Adjustment
Put the unit in recording mode and set the PAUSE switch
at ON. The tape don't run, but you can adjust the
recording level. Then, to start recording, return the
PAUSE switch to OFF. The PAUSE switch is also
practical for avoiding the recording of announcements
and commercials in FM programs.
Monitoring of aRecording in Progress (Fig. 37)
Model RT-1020L/H is athree-head tape deck with in-
dependent erase, recording and playback head. The erase
head automatically erases any previous recording on the
tape so that tapes can be used over and over again. The
recording head “inscribes” the singal on the tape, while
the playback head retrieves it. In amethod called “tape
monitoring," it is thus possible to hear the playback
signal while the recording is being made, and to compare
the original “source” sound with the recorded “tape”
sound. This is done by alternately setting the MONITOR
switches (there is one for each channel) at SOURCE and
at TAPE/PLAY. In this way you can ascertain the
recording quality and take corrective action if required.
NOTE
While monitoring recording now in progress by switching the
stereo amplifier's MONITOR switch ON/OFF (or TAPE/SOURCE).
you may sometimes feel sound volume differ when comparing the
volume at ON (or TAPE) with the volume at OFF (or SOURCE).
In this case, control the OUTPUT LEVEL CONTROL of the
RT- 10201.Ill to adjust the volume at ON to that at OFF.
FOLLOW-UP RECORDING
This is aconvenient method for re-recording certain
portions of an already recorded tape.
1. Set the unit in playback mode by pushing the PLAY
button. Set the REC switches at position ON(Fig.38)
Listen to the tape as in usual playback.
2. At the point from which you want to re-record, push
down the REC and PLAY buttons simultaneously
(Fig. 39). The unit will switch to recording mode
without the tape being stopped.
You must push down both the REC and PLAY
buttons simultaneously. Pushing the REC button alone
will stop the tape.
LEFT CHANNEL RIGHT CHANNEL
LEVEL METER LEVEL METER
Fig. 35
V*C UNI
,i*» •>
INPUT Fig. 36
Fig. 38
Fig. 39

UVE RECORDING WITH MICROPHONES
1. For stereophonic recordings, use two identical micro-
phones and connect them to the MIC input jacks
(Fig. 40).
2. Set the REEL SIZE switch and TAPE SPEED selector
in accordance with the reel size used and the desired
tape speed (Fig. 41).
3. Set both REC switches at ON. Set the PLAY switch
at position 2CH (Fig. 42).
4. METERS switch: position FRONT. Both MONITOR
switches: position SOURCE.
5. Adjust the recording level with the MIC level controls
(Fig. 43).
6. Push down the REC and PLAY buttons at the same
time (Fig. 44). Recording begins. For monitoring live
recordings, we recommend the use of headphones
rather than loudspeakers.
NOTE:
000 ohm low impedance as well as 10 -50k ohm high impedance
microphones may he used with equally Hood results High quality
microphones are available from Pioneer.
MICROPHONE JACKS
Fig. 40
nici spfto
Oo**. 40
Fig. 41
ncc PV AY MFTfOH MONITOR
9.9C*9MC*9#
?A»*f l>i Aw
ttCJtjMC.t
Fig. 12
4-TRACK MONOPHONIC RE-
CORDING
By using only one microphone or one channel (L Cl I. or
RCILlREC terminals, the four tracks of the tape can be
used for four separate monophonic recordings (Fig. 45).
This method gives greatest tape economy.
1. Make 1st recording on track 1.
REC switches: 1. ON. ROFF. Use LEFT channel MIC
jack or INPUT (REC) terminal (Fig. 46).
2. Turn tape over, re-load. Make 2nd recording on track
4. Controls and inputs as before.
3. 'rum tape over again. Make 3rd recording on track 3.
REC switches: LOFF, RON. Use RIGHT channel
MIC jack or INPUT (REC) terminal (Fig. 47).
4. Turn tape over again. Make 4th recording on track 2.
Controls and inputs as above.
The tape now contains four monophonic recordings on
tracks 1, 4, 3and 2, in that order.
NOTE:
For playing bach the monophonic tape recorded in the order of
tracks I. IiL channels) and L\ 3(Rchannels), use the following
procedure
ISet the PI.AY switch of model RT 10201.Hto position 2CH.
2. For playback of tracks I
.
•/: set the amplifier's MODE switch
to position MONO LEFT
3. For playback of tracks 2. 3: set the MODE switch to
position MONO RIGHT.
MIC tlMf
inpu tFig. 13
MC
Push Push
Fig. 44
Track 1L^/0) Input to left channel, tape side I
Track 2Rjl <4) Input to right channel, tape side 2
Track 3Rj |(3) Input to right channel, tape side 1
Track 4L2J(21 Input to let tchannel, tape side 2
(1) (4) is the recommended order of
ma- mg four monophonic recordings
Fig. 45
Fig. 46 Fig. 47
16

MIXING
Input signals supplied to the MIC and INPUT (KKC)
terminals, or to the REC/PB connector and INPUT
(REC) terminals can he mixed on arecording.
Microphone Signal +INPUT (REC) Signal
1. Connect microphones to MIC jacks, supply signal from
Stereo amplifier to INPUT (REC) terminals (Fig. 18).
2. Adjust MIC and LINE recording level controls to
obtain proper balance and total recording level.
3. Make recording as described on page 13.
REC/PB Signal +INPUT (REC) Signal
1. Connect two signal sources to REC/PB connector and
INPUT (REC) terminals.
2. Adjust level of REC/PB signal with MIC recording level
controls. Adjust level of INPUT (REC) signal with
LINE recording level controls.
3. Make recording as described on page 13.
RT-1020L/H
MICROPHONES
RT-1020L/H
INPUT
HfC
STEREO
AMPLIFIER
QoOOo O
.•9•v v O. J
Fig. 48
NOTE:
In MIC +LINE mixing, it is advisable to use a
somewhat lower LINE recording level than in
single source recordings
SOUND-ON-SOUND RECORDING
Sound-on-sound is amethod in which two (or more)
consecutive monophonic recordings can be mixed onto
one tape track. Common applications of this technique
include dual or triple recordings of asinger to obtain
achorus effect, or consecutive recordings of various
instruments adding up to the sound of aband. The
process is quite simple -the first recording is made on
one tape track as usual. Then, the tape is rewound to the
start. The second recording is made on the other tape
track while the first recording is monitored and copied
onto the other track. This process can lx> repeated several
times, but each time the total mix of all previous
recordings must be transferred to the other tape track
Refer to Fig. -19. Step-by-step procedure is as follows:
FIRST RECORDING ALREADY MADE ON
LEFT CHANNEL
1. Connect FRONT LEFT OUTPUT (MON) terminal to
RIGHT INPUT REC terminal (Fig. 50). Connect
microphone to RIGHT MIC input jack.
2. Set REC switch Lat OFF, REC switch Rat ON.
3. Adjust recording levels with MIC and LINE recording
level controls to obtain proper sound balance.
Table 2shows the influence of the MONITOR switches
upon LEVEL meter indication and output signals in
sound-on-sound recording mode.
4. Make recording, then rewind tape and confirm record-
ing quality. If unsatisfactory, repeat procedure. The
original recording is still there on the left channel.
Track 1Lj
Track 2R2
Track 3Rj
Track 4l_2
Example of sound on sound recording
duet accompaniment
111 First record accompaniment
-(21 Add voice to accompaniment
recorded in step (1).
*(3) Add voice to recording made in
step (2)
Follow steps (1). (2). (3) in that order
Y•
Fig. 49
\OU TPi# 1
MON
Connect to
RIGHT MIC jack.
MICROPHONE
Connect to
amplifier for
monitoring.
Fig. 50
MONITOR
SWI TCHES CMANNLLS LEVEL
!
METERS SIGNAL A! OUT- PUT IACKS
1APE/ LEFT INDICAT ES ORIGINAL
RLCORDING
PLAY RIGHT INDICATES RECORDING
IUS TMADE
LEFT
SOURCE
'——'4
RIGHT INDICATES SIGNAL
NOW BEING
RECORDED
Table 2

PIONEER
PLAYBACK OF RIGHT CHANNEL, RECORDING ON
LEFT CHANNEL
1. Connect FRONT RIGHT OUTPUT (MON) terminal to
LEFT INPUT (RFC) terminal. Connect microphone
to LEFT MIC jack.
2. Set REC button Lat ON. REC button Rat OFF.
ECHO RECORDING
Interesting ambience effects can Ik* obtained by employ-
ing echo recording for live material (especially vocal).
CONNECTING METHOD
1. Connect microphones to MIC jacks.
2. Connect connecting cords from LEFT &RIGHT
OUTPUT (MON) terminals to the LEFT &RIGHT
INPUT (REC) terminals and stereo amplifier LEFT AL-
RIGHT playback (TAPE MONITOR) terminals (see
Fig. 51).
LEFT OUTPUT
(MON)Terminal LEFT INPUT (REC) Terminal
LEFT Playback (TAPE NOMITOR)
Terminal of Stereo Amplifier
RT 1020L/H
\TAPE
\^REC
j$ <* ®i
TAPE /
MON
1LEFT 1
RIGHT \
Input terminals ol 2ch stereo amplifier
NOTE:
For echo recording, you need special connect mg
cords like those which arc shown in the Figure.
For details, consult your audio dealer.
Fig. 51
RIGHT OU TPUT
(MON) Terminal RIGHT INPUT (RFC) Terminal
RIGH TPlayback (TAPE MONITOR)
'Terminal of Stereo Amplifier
RECORDING &PLAYBACK PROCEDURE
1. Set LINE recording level control to MIN (minimum).
2. Position MONITOR switch to SOURCE and adjust
MIC recording level for optimum level meter deflection.
3. With the LINE recording level control at MIN, set the
MONITOR switch to TAPE/PLAY and begin recording.
•L Set the stereo amplifier monitor switch to ON. While
slowly turning the LINE recording level control, listen
to echo condition. Stop rotating at the best position.
NorF:
I. If the IIN't. recording level amtrot is increased excessively, howling
will he produced, therefore use caution
.
Heho condition effects differ at different tape speeds. Change the
TAPE SPEED selector setting to determine the most desirable effect.

WHEN EMPLOYING DIGITAL TIMER
By using aseparately sold digital timer, or time switch,
unattended recording, programmed start and stop opera-
tion, such as when using BGM at astore can be performed.
UNATTENDED RECORDING
1. Connect the power cords of the RT-1020L/H, ampli-
fier, tuner, etc. to digital- timer (see Fig. 52).
2. Turn on the power switches of the RT-1020L/H,
amplifier and tuner.
3. Operate amplifier and tuner, select station to be
recorded, and adjust RT-1020L/H recording levels.
4. Set digital timer so that power will be supplied to the
equipment at the desired time. Since power will be
interrupted while the timer is being set, the operating
buttons of the RT-1020L/H will be released. Therefore,
again simultaneously depress the REC and PLAY
buttons. By this setup, when the desired time arrives,
power will automatically be supplied to the equipment
and recording will start.
If the timer is set so that the power will again be cut
after the desired interval has elapsed, unattended
recording can be confidently performed.
SLEEP AND WAKEUP OPERATION
1. Connect the power cords of the RT-1020L/H, ampli-
fier, tuner etc. to digital timer.
2. By setting the timer so that power will l>e cut off after
30 to (50 minutes, the listener can fall asleep to music
and let the timer automatically turn off the equipment
(sleep operation).
3. For wakeup operation, set the timer so that power will
be supplied to the equipment at the desired time and
operate the RT-1020L/H according to the
“PLAYBACK” section on page 11. If the POWER
switch is then set to ON, playback will automatically
start at the desired time (wakeup operation).
D—
Digital timer
Tuner
fOoOOo 0-0
V•0?9 VOwvO
Stereo amplifier
1
kI
<? ••
oo QQoo •
RT 1020L/H
Fig. 52

PIONEER
CARE &MAINTENANCE
Model RT-1020L/H is asophisticated precision instru-
ment. Careful treatment and meticulous maintenance will
pay off in superb performance time after time.
CLEANING OK HEADS AND TAPE PATH
•
The parts shown in Fig. 55 —tape guide, heads, pinch
roller, capstan and tension arm —easily become dirty.
They should be kept scrupulously clean because dirt or
oil on these parts can cause inferior sound quality and
stereo balance, unstable tape transport and other troubles.
At the first sign of dirt, clean these parts with the
supplied cleaning ribbon as shown in Fig. 56. Before
using the ribbon, push down the pinch roller in the
arrow-indicated direction and pull at both ends of the
ribbon by hand to bring it into direct contact with
the capstans. Then try cleaning. Stubborn dirt and
deposits can be removed with the supplied cleaning bar
or apiece of cloth moistened with the supplied cleaning
fluid.
HEAD DEMAGNETIZING
As some static magnetism builds up in the tape heads
after long-term use, these should be demagnetized with
ademagnetizer about once amonth. Refer to Fig. 57
and observe the instructions supplied with the
demagnetizer.
LUBRICATION
Model RT-1020L /II uses oilless metal in most of its mo-
ving parts. Only the following three parts should be lubri-
cat'd with top quality machine oil once ayear (Fig. 5S).
Flywheel bearing 1—2drops After lubrication,
Pinch roller shaft 1drop Icarefully wipe off ex-
cess oil.
Be especially careful not to put any oil on the capstan
and rubber pinch roller. If this should happen, clean the
capstan and pinch roller thoroughly with the supplied
cleaning fluid.
TAPE GUIDE TAPE RECORDING HEAD GUIDE
HEAD HOUSING
TAPE
UIDE
Depress
PINCH
ROLLER
apstAn
CLEANING
RIBBON
NOTE.
Hold cleaning ribbon hiul, depress pinch roller
downwards;ribbon will then contact heads.
HEAD DEMAGNETIZER
FLYWHEEL
BEARING
REMOVE
THE SCREW
PINCH ROLLER
COVER
FELT WASHER
NYLON WASHER
PINCH ROLLER
Fig. 58
21