Pioneer SA-7800 User manual

STEREO AMPLIFIER W) PIONEER’
A=7800 _ =:
OPERATING INSTRUCTIONS
These operating instructions are based on the model HG,
and they can be used for the S, S/G models. The differences
between the models are given below.
Power requirements
SA-7800/HG: 220V/240V (switchable), 50Hz, 60Hz
SA-7800/S, S/G: 110V/120V/220V/240V (switchable),
50Hz, 60Hz
NOTE:
Read through the section on the LINE VOLTAGE SE-
LECTOR SWITCH on page 4 before using your amplifier
and check that the voltage selector switch is set correctly
for use in your area.
Power cords
SA-7800/HG: This is configured as an AC inlet type.
Use a separate power cord in order to
connect the power supply.
SA-7800/S, S/G: The power cord is mounted at the
rear.
Cabinet
SA-7800/HG, S: Black cabinet .
SA-7800/S/G: Walnut grained finished cabinet.
Others
SA-7800/HG: The DIN-type recording/playback
socket is provided on the rear panel.
SA-7800/S, S/G: The AC outlets are provided on the
rear panel.
IMPORTANT
To prevent electric shock, do not remove cover. No user FOR USE IN UNITED KINGDOM AND
serviceable parts inside, refer servicing to qualified serv- AUSTRALIA
ice personnel, ; : A
Always disconnect all the equipment from the mains CAUTION 240V: ue ee is facto-
ry adjusted a ‘
supply when disconnecting the signal leads. The power
cord should be connected last, make sure that the power FOR USE IN UNITED KINGDOM
switch is off. First, insert the female appliance connector Th Z in thi ‘ns lead ] di d
of the mains cord into the AC INLET, then plug the aes a ~ ae Oe cGy ween Henao eae
cord to the wall socket, Be sure that the appliance con- ile ese peri oe ee Yellow: Earth
nector is fully inserted into the AC INLET. ae Pee ee ae
Unplug the set from the wall socket when it is not to be Bes pm
d tended iod ime, Aah F : ;
used
for
an
extended
period
of
time
As
the
colours
of
the
wires
in
the
mains
lead
of
this
ap-
paratus
may
not
correspond
with
the
coloured
marking
WARNING identifying the terminals in your plug proceed as fol-
lows.
THIS APPARATUS MUST BE EARTHED. The wire which is coloured green-and-yellow must be
connected to the terminal which is marked with the let-
ter E or with the safety earth symbol -& or coloured
x OR YOUR SAFETY green or green-and-yellow.
1. Insert this plug only into effectively earthed three-pin The wire which is coloured blue must be connected to
plug-socket outlet. the terminal which is marked with the letter N or colour-
2. If any doubt exists regarding the earthing, consult a ed black,
qualified electrician. The wire which is coloured brown must be connected to
3, Extension cords, if used, must be three-core correctly the terminal which is marked with the letter L or colour-
wired. ed red.

CONTENTS
Features
Stereo System Composition
Installation Precautions
Rear Panel Facilities
Connections
FEATURES
Power Amp with Ultra-wide-frequency-range
Output and Low Distortion
This amplifier has the impressive feature which is the
NSA (Non-Switching-Amplifier), created specially by
Pioneer. This is a type of amplifier that adopts the merits of
both the class A and class B amplifiers, and it excels in
keeping down the heat loss and allows the transistors to
operate all the time in the active region. For this reason, a
high output power with a very low distortion factor is
yielded all the way up to the high frequencies.
Also it is designed to pack a punch at every stage — this
is evident in the first stage differential input, current mirror
load; the predriver stage Darlington, constant-current load;
and the output stage 2-stage Darlington, push-pull output
circuit configuration. All this adds up to a DC amp con-
figuration which uses SL RETs (Super Linear Ring Emitter
Transistors), which have an excellent switching response in
the high frequency range, for the power transistors.
Continuous Power Output is 65watts” per chan-
nel, min., at 8 ohms or 4 ohms from 10 Hertz to
20,000Hertz with no more than 0.009% total
harmonic distortion.
T-shaped ‘‘skyve” heat sink is used because it is
lightweight and it dissipates the heat very effectively.
Even when the amplifier is operating continuously under
full power conditions, these heat sinks keep the rise in tem-
perature down, and they ensure that a high-quality power is
provided.
Flat Amplifier with High S/N Ratio and Low
Distortion
This model adopts an ICL DC amplifier which is com-
posed of a two-stage differential amplifier for the first stage
using ultra-low-noise dual FETs and an emitter follower for
the final stage. This construction is successful in achieving a
low distortion and a high signal-to-noise ratio, and in main-
taining an S/N ratio of 110dB (AUX).
Operations
Using the Tape Decks
Conditions Frequently Mistaken for
Malfunctions
Specifications Insertion
Schematic Diagram Insertion
Equalizer
Amplifier
for
Faithful
Reproduction
of
Sound
from
Records
A
low-distorsion,
low-noise
equalizer
amplifier
is
adopt-
ed.
It
is
configured
with
three
direct-coupled
stages
using
ultra-low-noise
transistors
for
the
first
stage,
and
an
emitter
follower
for
the
final
stage.
This
results
in
yielding
a
low
noise
and
low
distortion,
a
signal-to-noise
ratio
of
87dB
(PHONO)
and
an
RIAA
equalization
of
only
+0.2dB
across
a
frequency
spectrum
of
20Hz
to
20kHz.
The
maximum
rated
input
is
200mV
(at
1kHz,
0.003%
total
harmonic
distortion),
proving
that
there
is
more
than
enough
headroom
for
the
reproduction
of
sound
from
records.
Power
Output
Indication
on
Fluorescent
Display
Tubes
The
conventional
needle-type
of
power
output
meters
have
been
replaced
with
the
more
up-to-date
fluorescent
display
tubes
featuring
digital
technology.
They
employ
logarithmic
compression
circuits
and
a
peak
hold
circuit
to
indicate
the
power
output
over
a
0.3mW
to
80W
range
without
any
assisting
selection
on
the
attractive
fluorescent
display
tubes.
Highly Reliable Protection Circuits
There
are
protection
circuits
which
serve
to
detect
over-
load
and
the
mid-point
voltage
in
the
power
amplifier
stage.
When
the
speaker
terminals
are
shorted
or
something
unex-
pected
happens
that
causes
the
mid-point
voltage
to
under-
go
an
abnormal
change,
the
circuits
use
a
relay
to
immedi-
ately
cut
the
power
amplifier
off
from
the
speakers.
They
also
function
as
a
muting
circuit
when
the
power
switch
is
set
to
the
ON
and
OFF
positions
to
suppress
the
undesira-
ble
noise
which
is
generated
and
to
safeguard
the
speakers
from
damage.
Phono Interference Filter
Set this switch to the ON position when the radio-fre-
quency interference is adversely affecting the sound quality
during record play. This action serves to reduce the amount
of noise.
*Measured pursuant to the Federal Trade Commission’s Trade Regulation rule on Power Output Claims for Amplifiers,

PIONEER
STEREO SYSTEM COMPOSITION
Shelves
Make sure that the shelves are stable
and fully capable of supporting heavy
weights and resisting vibration.
fi 7a
o[——] s©@eo
B © BOO B00
Installing the stereo amplifier
eChoose a location where the heat
will be dissipated easily.
Turntable
eSet the turntable so that it is
Tuner
eDo not make the connecting
not affected by vibration. ==
eKeep
the
dust
cover
closed
as
a
oO
©s88s5
CRONIN
<j
cords
longer
than
necessary.
much
as
possible.
7a
M77al
e
Set
the
antenna
in
the
direction
i
i
in
‘S
best
suited
for
reception.
Audio
rack
WITHA
(avayii(ars
e@
Stack
the
records
up
for
storage
JN
tt
We
vay)
eee
BEY
e
Use
an
external
antenna
for
FM
a
ae
aero
.
—
do
not
lay
them
flat.
ii
oot
it
@o
reception.
@eDo not expose pre-recorded - cute ve
tapes
near
the
stereo
system
for
,
a
be
a
)
ee
Tape
deck
long-periods
of
time.
Seiten
:
ome’
(
@
Make
sure
you
clamp
the
reels
e
Do
not
store
the
tapes
anywhere
7
eee
oY
se
when
using
the
tape
deck.
Loven w eX
near a magnetic field. ee
The sound quality some-
times changes depending
on the position and the
material of the funiture.
Carpet
Carpets on the floor
help to absorb the
sound.
Connecting the speakers
Use high current capacity con-
necting cords and do not make
them longer than necessary.
INSTALLATION PRECAUTIONS
Listening position is slight-
ly to the apex of an equi-
lateral triangle formed with
left and right speakers.
Thick curtains
e Use curtains to shade the stereo
system from the direct rays of
the sun.
eCurtains also help to reduce
resonance and reverberation in
the listening room.
Speaker system
e@ install the speakers to the left and right so
that they are subject to the same conditions
both to the side and at the back. (The bass
is more pronounced if you set them up
against a wall.)
e Install the speakers so that they are not
affected by vibration transmitted through
the floor.
To
ensure
the
best
sound
quality
and
trouble-free
operation,
avoid
setting
up
the
amplifier
in
any
of
the
locations described below:
Locations liable to downgrade performance
and result in breakdowns
. Locations exposed to direct sunlight, or near heaters.
. Locations with poor ventilation, with high humidity or mois-
ture contents, or dusty locations.
. Locations susceptible to vibration.
Resulting trouble
. External heat causes the performance of the electronic parts to
deteriorate, and operation becomes unstable.
. Cause of faulty contact in input-output terminals, and rust.
High humidity and a high moisture content cause deterioration
in insulation. There is also the danger of current leakage and
heat generation in the circuit parts. Dust or grease in the rotat-
ing parts causes them to deteriorate.
. These locations affect the precision parts adversely.

REAR PANEL FACILITIES
A Tscioe
| oS
B BOG
i) =
i]
SA-7800/S, S/G model
@ PHONO INTERFERENCE FILTER SWITCH
This is used to attenuate radio-frequency inter-
ference from external electronic or electrical
appliances or products during record play.
@ PHONO JACKS
Connect the turntable output cords to these
jacks.
@® GND TERMINAL
This is the ground terminal. Connect the ground
wire of the turntable, etc. to this terminal.
@ TUNER JACKS
Connect the tuner cords to these jacks.
() AUX JACKS
These are auxiliary input jacks. Connect a TV
tuner or cartridge tape player to them.
© SPEAKERS TERMINALS A
Connect your first pair of speakers to these ter-
minals.
@ SPEAKERS TERMINALS B
Connect your second pair of speakers to these
terminals.
TAPE 1 JACKS
Connect the tape deck cords to these jacks.
Connect the REC (recording) jacks to the INPUT
jacks on the tape deck, and the PLAY (playback)
jacks to the OUTPUT jacks.
@) TAPE 2 JACKS
Connect your second tape deck cords to these
jacks. Connect the REC (recording) jacks to the
INPUT jacks on the tape deck, and the PLAY
(playback) jacks to the OUTPUT jacks.
4
@ 9 9 @
B Bolas
ae ee |]
SA-7800/HG model
AC OUTLETS (S, S/G models only)
These are spare power outlets. Insert the power
plug on the stereo components (turntable, tuner,
tape deck, etc.) into these outlets.
SWITCHED: The power supplied through these
outlets is coupled to the operation of the
amplifier’s power switch. The maximum
power capacity which may be connected to
the two SWITCHED outlets is 200W.
UNSWITCHED: The power is always supplied
through these two outlets regardless of the
position of the power switch. The maximum
power capacity which may be connected to
these two outlets is 200W.
NOTES:
e Never connect an iron or a toaster to these outlets.
e Do not get the power outlets and the power plugs
wet or touch them with wet hands, since you may get
an electric shock.
() TAPE 2 JACK (HG model only)
Connect the tape deck to this jack with DIN-type
(recording/playback) cord.
(2 LINE VOLTAGE SELECTOR SWITCH
Check that the indication of the switch is same as
your residence before plugging the power cord
into the outlet. If it isn’t or if you move to an
area where the voltage requirements differ,
change the switch setting as follows.
Before adjusting, disconnect the power cord.
ee model (220V/240V switchable)
1. Loosen the screw on the plug with a Phillips
screwdriver, then take out the plug.
2. Re-install the plug with its cutaway section
exposing the correct voltage indication as
shown in Fig. A.
3. Tighten the mounting screw.

|
A PIONEER
{
| S, S/G model (110V/120V/220V/240V
switchable)
1. Unscrew the fuse cap with a Phillips screw-
driver, then take out the fuse and plug.
2. Re-install the plug with its cutaway section
exposing the correct voltage indication as
shown in Fig. B.
VOLTAGE SELECTOR plug
we
Phillips screwdriver A
ay )
=
”
Mounting screw
Fig. A
CONNECTIONS
CONNECTION DIAGRAM
Turntable
3. Refer to the table and install a replacement
fuse (provided as an accessory).
4. Insert the fuse in the fuse cap, then fit the cap
to the plug and tighten.
3 AC INLET (HG model only)
Plug the power cord into this socket.
Socket
VOLTAGE SELECTOR
CoN
Ue
I plug
Fuse
Fuse cap _&»
Phillips screwdriver —R
Table
110V, 120V
220V, 240V
Fig. B
Cartridge tape
Connect to Seemeenensnnmmatsceetacto: rm sf aie TAPES
ground terminal [ nec ruay | REC PLAY REC/PLAY
I g.
of turntable, i bs L.
(tuner, tape deck,
etc.)
eck 1 Tape d
ae
Oi
OS
VaW/=\9e)
(==
eo
mokr—ah
oe
d
OUTPUT
Grounding
een
to
earth
= SH OY GARD GEM RAD SU RR SRR
a PLAN
0 0245 O08
SA-7800/HG
L R L R
Speaker system A Speaker system B

SPEAKER SYSTEM CONNECTIONS (Fig. 1)
The amplifier is provided with two sets of SPEAK-
ERS output terminals. Use the A set when con-
necting only one set of speakers. Viewed from the
front, the R (right channel) SPEAKERS terminals
are on the right and the L (left channel) SPEAK-
ERS terminals are on the left. Connect the left
channel speaker to the L terminals and the right
channel speaker to the R terminals. The red L and
R SPEAKERS terminals have a plus polarity and
the black terminals have a minus polarity and the
speaker systems have also the same dual polarities.
When connecting, always connect minus to minus
and plus to plus.
Cautions when connecting the speakers
1. The speaker output terminals have polarities:
minus (black) and plus (red). The input jacks on
the speakers also have plus and minus polarities.
When connecting, make sure that these polarities
are aligned: plus to plus and minus to minus. If
the left and right speaker polarities are mis-
aligned, the reproduced sound will not display a
natural stereo effect. |
2. Use speakers with a nominal impedance ranging
from 4 ohms to 16 ohms.
3. Never use the speakers with the speaker output
terminals shorted (minus and plus jacks con-
nected) since this may damage the power transis-
tors in the amplifier.
Processing and connecting the speaker cords
(Fig. 2)
1. Cut off the covering of the speaker cords as
shown in Fig. 2-@.
2. If the strands at the tip of the cord are pointing
in all directions, twist them with your thumb
and forefinger. Otherwise some of the strands
may come into-contact with other terminals and
cords, and cause a short.
3. Push down on the buttons under the terminals
with the tip of your finger, and slip the tip of
the cord into the hole in the center of the
terminal. Make sure that the lead wire in the
cord does not protrude.
4, Remove your fingertip from the button. The
terminal will snap back into position and so
check that the cord is securely connected. You
may not hear any sound if the cords are not
connected properly.
Right channel
speaker system
SPEAKERS
terminals
Connect your second pair
of speaker system.
Left channel
speaker system
Fig. 1
Speaker lead wire preparation
and connection
Speaker cord
10mm
Twist the strands
Fig. 2 |

TURNTABLE CONNECTIONS (Fig. 3)
Connect the output cords of a turntable to the
PHONO input jacks. Connect the groundlead of
the turntable to the GND terminal on the ampli-
fier.
NOTE:
The way in which the output cords are attached will
depend on the type of cartridge used. If you intend to use
a low-output moving coil (MC) cartridge, always provide a
special MC transformer or a head amplifier.
TUNER CONNECTIONS (Fig. 4)
Connect the output jacks of a stereo tuner to the
TUNER input jacks with the connecting cords.
AUX JACKS CONNECTIONS (Fig. 5)
These jacks can be connected to the OUTPUT
(PLAY) jacks on a TV tuner, cartridge tape player
or tape deck. Use connecting cords with pin plugs
to connect the OUTPUT jacks on the component
with the AUX jacks.
TAPE DECK CONNECTIONS (Fig. 6)
This amplifier is provided with two sets of record-
ing (TAPE REC) output jacks and two sets of
playback (TAPE PLAY) input jacks. Connect each
of the jacks in the following way using the con-
necting cords which come with the tape deck.
Connections for recording
Connect the recording input jacks (INPUT) on the
tape deck to the TAPE REC jacks on the amplifier.
Connections for playback
Connect the playback output jacks (OUTPUT) on
the tape deck to the TAPE PLAY jacks on the
amplifier.
NOTE:
Connect your second tape deck to the TAPE 2 jacks
(REC, PLAY).
Connections using the recording/playback
connector (Applicable to HG model only)
If your tape deck is equipped with a recording/
playback connector (DIN-type), use the optional
recording/playback cord to connect this connector
with the TAPE 2 REC/PLAY jack on the amplifier.
In such cases, do not connect pin cords (ordinary
pin plug cords) to the TAPE 2 REC and PLAY
jacks.
PIONEER
Turntable
Ground lead
SA-7800
oF] s©)s0
Be 8800800
Fig. 3
Tuner OUTPUT jacks
=| aey,_t channel
8 O OCseee }
SA-7800
fo) (eso 3 »Ou0 |
Be a 100
R channel
TUNER input jacks
Fig. 4
Cartridge tape player § OUTPUT jacks
L channel
R channel
AUX input jacks
Fig. 5
‘SA-7800 Tape deck 1
oF «Ono
Be 880 0 800 | Play-
: back
Fig. 6

FRONT PANEL FACILITIES
@ POWER SWITCH
Set this switch to ON to supply power to the
amplifier. There will be a short delay when it is
set to ON, because the muting circuit has been
actuated to suppress the unpleasant noise that is
sometimes generated when the power is on and
off.
.
@ POWER INDICATOR
When the power switch is set to ON this lamp
lights up, indicating the amplifier is turned on.
@) SPEAKER SELECTOR
Use this selector to select the speaker systems.
OFF: Sound not obtained from speakers.
A: Sound obtained from speakers connected
to the A speaker terminals.
B: Sound obtained from speakers connected
to the B speaker terminals.
A+B: Sound obtained from speakers connected
to both A and B speaker terminals.
@ TAPE MONITOR INDICATOR
The TAPE lamp lights up when the tape monitor
switch is set to either position ‘‘1” or “‘2’’.
©) POWER METER
This meter allows you to read out the rated
power level on the fluorescent display tube when
speakers with a nominal impedance of 8 ohms are
connected to the amplifier’s speaker terminals.
© FUNCTION INDICATORS
The PHONO, TUNER, AUX function indicators
light up in accordance with the position of the
function selector.
NOTES:
The function indicator will not go off when the tape
monitor switch is set to position ‘1’ or ‘2”’,
8
@: LOUDNESS SWITCH
When listening to a performance with the volume
control turned down, set this switch to ON and
the bass and treble will be accentuated.
When the volume is low, the human ear finds it
harder to hear the bass and treble than when the
volume is high. The lotidness switch is thus
designed to compensate for this deficiency. By
setting it to ON, the bass and treble come through
much more strongly and the sound takes on a
punch even when the volume control is turned
down.
VOLUME CONTROL
Use this control to adjust the output level to the
speakers and headphones. Turn it clockwise to
increase the output level. No sound will be heard
if you set it to oo. The scale is graduated in dB
which indicate the attenuation when the max-
imum output level is OdB.
@ TAPE DUPLICATE SWITCH
Use this switch when employing two tape decks
to duplicate recorded tapes or edit tapes. This
switch is otherwise kept at the OFF position.
1» 2: When playing back the tape on a deck con-
nected to the TAPE 1 jacks and recording
(duplicating) on a deck connected to the
TAPE 2 jacks.
OFF: Set to this position when not duplicating.
21: When playing back the tape on a deck
connected to the TAPE 2 jacks and record-
ing (duplicating) on a deck connected to
the TAPE 1 jacks.

a PIONEER
TAPE MONITOR SWITCH
Use this to select the program source which is
being reproduced.
1: Set here to monitor a recording or a tape
being played back on a tape deck which is
connected to the TAPE 1 jacks.
OFF: Set here whenever you are not playing back
a tape or monitoring a recording (i.e. when
you have set the function selector to
PHONO or TUNER, or AUX for an alter-
native program source).
2: Set here to monitor a recording or a tape
being played back on a tape deck which is
connected to the TAPE 2 jacks.
(@ FUNCTION SELECTOR
Use this selector to select the program source.
When set, the function indicator above the meter
panel corresponding to the position of the func-
tion selector will light up.
PHONO: Set here when playing records on a
turntable connected to the PHONO jacks.
(The PHONO function indicator lights up.)
TUNER: Set here when listening to broadcasts
on a tuner connected to the TUNER jacks.
(The TUNER function indicator lights up.)
AUX: Set here when listening to a program
source which is connected to the AUX
jacks.
(The AUX function indicator lights up.)
(2 HEADPHONE JACK
Plug the headphones into this jack when you
want to listen through your stereo headphones.
NOTE:
Set the speaker selector to OFF when listening only with
headphones.
(3) SUBSONIC FILTER SWITCH
When this switch is set to the 15Hz position, the
subsonic filter with a cut-off frequency of 15Hz is
actuated. The subsonic filter serves to attenuate
frequencies lower than 15Hz in a 6dB/oct slope.
It is therefore effective in suppressing ultra-low-
frequency noise which is generated by record
warp and other causes. You cannot actually hear
this noise but it is a factor in the generation of
intermodulation distortion and it may damage
your speaker system. Set this switch to the 15Hz
position during record play for the best effect.
TONE SWITCH
Set this switch to ON when adjusting the bass and
treble controls. When set to OFF, the tone
control circuits are disengaged and frequency
. response is flat. This function is convenient. for
checking phono cartridge and speaker tone
quality and listening room acoustics.
(5 BASS AND TREBLE CONTROLS
Use these controls to adjust the bass and the
tréble. If you set the tone switch to ON and turn
the bass control to right from its center position,
you will be able to emphasize the sound in the
low-frequency range. Conversely, turning the
bass control to the left from the center position,
you will attenuate the sound.
You can use the treble control to adjust the
sound in the high-frequency range.
MUTING SWITCH
Set this switch to —20dB to attenuate the audio
output indicated by the volume control by 20dB.
There is no need to adjust the volume control if
you use this switch when turning down the audio
output temporarily and when changing over
records or tapes.
() BALANCE CONTROL
Use this control to balance the volume of the left
and right channels. First, however, set the mode
selector to mono (L+R, L, or R), and adjust so
that the sound appears to come from somewhere
exactly between the two speakers. If the sound
appears to be louder on the right, it means that
the volume of the right channel is higher. Turn
the balance control to the left and adjust.
Conversely, if the sound appears to be louder on
the left, it means that the volume of the left
channel is higher. Therefore, turn the balance
control to the right and adjust. After adjusting,
return the mode selector to STEREO.
MODE SELECTOR
Use this selector for selecting the performances.
REV: Reverses left and right channel stereo
signals and reproduces them stereophon-
ically.
STEREO: Set to this position for normal stereo
reproduction.
L+R: Mixes left and right channel signals and
reproduces them monophonically.
L: Left channels signal is reproduced mono-
phonically, from both speakers.
R: Right channel signal is reproduced. mono-
phonically from both speakers.
9

OPERATIONS
Volume control
Loudness switch
Speaker selector
Subsonic filter switch
Tone switch
PRIOR TO SWITCHING POWER ON
Before switching the power on, set the various
controls as follows:
. Set the subsonic filter switch to OFF.
. Set the volume control to ©.
. Set the tape duplicate switch to OFF.
. Set the tape monitor switch to OFF.
. Set the tone switch to OFF.
Set the balance control to the center position.
. Set the loudness switch to OFF.
. Set the muting switch to OFF.
. Set the mode selector to STEREO.
. Set the tone controls to the center positions.
.Set the speaker selector to the appropriate
position according to the employed terminals.
PLAYING RECORDS
1. Set the function selector to PHONO.
2. Operate the turntable to play the record.
3. Adjust the volume with the volume control.
4. Set the tone switch to ON in line with your
preference and adjust the tone with the tone
controls.
FOOD ANOahWNH ee
Precautions when playing records.
e Lower the stylus gently on to the surface of the
record. It is a good idea to set the muting switch
to —20dB or to turn the volume down when
lowering the stylus onto the record.
10
Tone controls
Tape duplicate switch
‘Tape monitor switch
Function selector
Mode selector
Balance control
Muting switch
e Set the subsonic filter switch to 15Hz when
there is a great deal of noise in the low-
frequency region or when the bass speaker’s
diaphragm moves even though no sound can be
heard during a performance.
e Do not cause the turntable to vibrate while a
record is being played since this will cause the
stylus to jump and scratch the record. Do not
turn off the power if the stylus is still tracing
grooves on the record.
LISTENING TO THE BROADCAST
1. Set the function selector to TUNER.
2. Operate the tuner and tune in to the desired
station.
3. Adjust the volume with the volume control.
4. Set the tone switch to ON in line with your
preference and adjust the tone with the tone
controls.
USING THE AUX JACKS
1. Set the function selector to AUX.
2. Operate the audio component which you have
connected to the AUX jacks.
3. Adjust the volume with the volume control.
4. Set the tone switch to ON in line with your
preference and adjust the tone with the tone
controls.

USING THE TAPE DECKS
PLAYBACK
1. As shown in Fig. 7, set the tape monitor switch
to 1 if the tape deck is connected to the TAPE 1
jacks. Set the tape monitor switch to 2 if it is
connected to the TAPE 2 jacks.
2. Operate the tape deck controls for playback.
3. Adjust the volume with the volume control.
4, Set the tone switch to ON in line with your
preference and adjust the tone with the tone
controls.
NOTE:
Always set the tape monitor switch to the OFF position
when you are not playing back a tape.
RECORDING
1. Set the function selector to the program source
to be recorded.
2. Set the tape duplicate switch to the OFF posi-
tion.
3. Set recording level by means of the controls on
the tape deck.
4, Operate the tape deck controls and start record-
ing.
NOTE:
The volume, tone controls, balance control and loudness
switch have no effect at all on signals from the REC jacks
of the stereo amplifier.
Tape Monitoring
If a recording is being made on a 3-head tape deck,
the recorded sound can be monitored through the
speaker system if the tape monitor switch is set
to 1 or 2. In this case, both recording and playback
connections must be made.
NOTE:
If you have a 2-head open-reel deck or cassette deck, you
will not be able to monitor the recorded sound even if
you set the tape monitor switch to 1 or 2. However, you
will be able to hear the sound at the playback end
(program source).
DUPLICATING AND EDITING RECORDED
TAPES
1. Connect the two tape decks as shown in Fig. 9.
2. When duplicating the contents of a recorded
tape in tape deck 1 onto a blank tape in tape
deck 2, set the tape duplicate switch to 1 P 2.
When duplicating from deck 2 to deck 1, set this
switch to 2 P 1.
38. When you want to monitor the quality of the
sound being recorded, set the tape monitor
switch to 1 or 2.
PIONEER
Tape deck 1
rTAP
DUPLICATE MONITOR
Tape deck 2
“sor
Fig. 7
Tape deck 1
rTAPE
OUPLICATE MONITOR
Tape deck 2
FUNCTION
SOURC
PHONO
Sg
TUNER}
AUX
Fig. 8
Tape deck
(for
playback)
ny
ot
Lalrl-=
its
aati
ee or recording
Set the tape duplicate switch to 1» 2 when recording from tape
deck 1 to tape deck 2.
Fig. 9
NOTE:
Do not record programs simultaneously on both tape deck
1 and tape deck 2.
11

PIONEER
CONDITIONS FREQUENTLY MISTAKEN FOR MALFUNCTIONS
In event. of suspected malfunction, check the unit according to the following table and confirm proper
operation of other connected equipment. If the difficulty cannot be corrected, turn off the power and
contact a Pioneer authorized service center.
@ Is power indicator light on? e Plug power cord securely into power outlet.
@ Set power switch to ON.
@ Connect properly.
(If all components are connected properly,
check the components themselves).
e Are speakers, tuner, tape deck and other com-
ponents connected properly?
e Set so that the switch corresponds to the
source,
e ls function selector set to correspond to
program source?
e@ Set to OFF except for tape playback. Refer to
page 11.
Check tape monitor switch position.
e@ Select in accordance with the speaker terminals
to which speakers are connected..
Check speaker selector position.
e Set muting switch to OFF, and rotate volume
control clockwise.
Check positions of muting switch and volume
control.
Sound not heard immediately even though e@ Sound will not be heard for several seconds due
power switch is set to ON. to actuation of the muting circuit. See page 8.
e Connect to as to eliminate faulty contacts.
(Noise may decrease when ground wire is con-
nected.)
e Any problem with connected components? e Correct fault.
@ Set tone switch to ON and muting switch to
OFF.
Occasional noise heard.
Are components connected properly?
Sound quality remains @ Check positions of tone and muting switches.
unaltered.
e@ Try changing the installation locdtions of the
turntable and speakers.
@ Turntable and speakers are too close to one
another.
Howl caused
when volume is raised.
e Installation locations of turntable and speakers
e Do not turn up the bass.controls excessively.
are not stable.
PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan
U.S. PIONEER ELECTRONICS CORPORATION 8&5 Oxford Drive, Moonachie, New Jersey 07074, U.S.A.
PIONEER ELECTRONIC (EUROPE) N.V. Luithagen-Haven 9, 2030 Antwerp, Belgium
PIONEER ELECTRONICS AUSTRALIA PTY. LTD. 178-184 Boundary Road, Braeside, Victoria 3195, Australia
<78LO03M2E01> Printed in Japan ¢ARB-302-0 )