Pioneer SX-3600 User manual

\
STEREORECEIVER
SX.\3E|CICI
KU
Walnutgrained
vinyl metattop and
walnutgrained vinyl
side
panels
areused
intheconstruction
ofthis cabinet.
IMPORTANT
NOTICE
The serial number
for this equipmentis locatedon the
rear
panel.
Pleabewritethisserial
number
onyour enclosed
warrantycardand
keep
inasecurearea.
This
is
foryour security.
WARNING:
T0 PREVENTFIRE
0RSHOCK
HAZARD,DONOT
EXPOSE
THIS
APPLI-
ANCE
TO RAIN
OR
MOISTURE.
()rrroNEER'

SAFETY
INSTRUCTIONS
READ INSTRUCTIONS - All the safety and operating instruc-
tions should be readbefore the applianceisoperated'
RETAIN INSTRUCTIONS - The operating
instructions
shouldbe
retainedfor future reference.
HEED WARNING - All warningson the applianceand in the
operating instructions should be adheredto.
FOLLOW INSTRUCTIONS -' All operating and use instructions
should be followed.
WATER AND MOISTURE - The applianceshould not be used
near water - for example, near a bathtub, washbowl, kitchen
sink, laundry tub, in a wet basement,
or near
a swimming pool'
etc.
LOCATION - The appliance should be installed in a stable loca-
tion.
WALL OR CEILING MOUNTING - The applianceshould not
bemountedto a wall or ceiling.
VENTILATION - The appliance
should be situated so that its
location or position does not interfere with its proper ventila-
tion. For example, the appliance should not be situated on a
bed, sofa, rug, or similar surface that may block the ventilation
openings;
or, placed in a built-in installation,
such as a book-
case or cabinet that may impede the flow of air through the
ventilation openings,
HEAT - The applianceshould be situated away from heat sources
such as radiators. heat registers.stoves. or other appliances (in-
cluding amplifiers)that produce heat.
POWER SOURCES - The appliance should be connected to a
Dower supply only of the type described in the operating in-
structions or asmarked on the appliance.
GROUNDING - The precautions that should be taken so that
the grounding of an applianceisnot defeated.
POWER-CORD PROTECTION - Power-supplv
cords should be
routed so that they are not likely to be walked on or pinched
by items placed upon or against them, paying particular atten-
tion to cords at plugs, convenience rreceptacles,
and the point
where they exit from the appliance.
CLEANING - The appliance
shouldbe cleaned
only with a polish-
ing cloth or a soft dry cloth. Never clean with furniture wax,
benzine, insecticides or other volatite liquids since they may
corrode the cabinet.
POWER LINES - An outdoor antenna.should be located
away
from power lines.
NONUSE PERIODS - The power cord of the appliance should
be unplugged from the outlet when left unused for a long period
of time.
OBJECT AND LIOUID ENTRY - Careshould be taken so that
objects do not fall and liquids are not spilled into the enclosure
through openings.
DAMAGE BEOUIRING SERVICE - The appliance should be
serviced by Pioneer authorized service
center or qualified service
personnelwhen:
r The power-supply cord or the ptug hasbeendameged;or
r Oblects have fallen, or liquid has been spilled into the appli-
ance;
or
o The appliancehasbeen
exposed
to rain; or
o The appliance does not appear to operate normally or ex'
hibits amarked change
in performance;or
r The appliancehas beendropped, or the enclosure
damaged'
c)
Antenna
discharge
\
unit
SERVICING - The user
should not attempt to service
the appli'
ance beyond that described in the operating instructions. All
other servicing
should be contactd nearestPioneerauthorized
servtcecenter.
OUTDOOR ANTENNA GROUNDING - lf an outside antenna
is connected to the antenna
terminal, be surethe antennasys-
tem is grounded so as to provide some protection against volt-
age surges and built up static charges.
Section 810 of the Natio-
naf ElectricalCode,ANSI/NEPA No. 70-1978,
provides
informa-
tion with respect to proper grounding of the mast and support-
ing structure, grounding of the lead'in wire to an antenna dis-
charge unit, size of grounding conductors. location of antenna-
discharge unit, connection to grounding electrodes, and require-
ments
for the grounding
electrode.
See
Fig.A.
EXAMPLE OF ANTENNA GROUNDING AS
PER NATIONAL ELECTRICAL CODE INSTRUCTIONS
Ground
clamo
a),b)
Mast
ground
wire To Antenna
terminal
Ground
clamPs
Grounding electrode
driven 8' into the earth
(2.44 metersl
Fig.
A
a) Use No. 10 AWG copper or No. 8 AWG aluminum or No.
17 AWG copper-cladsteel or bronze wire, or largeras ground
wiresfor both mastand lead-in,
b) Securelead-inwire from antenna to antennadischarge
unit and
mast ground wire to house with stancl-off insulators, spaced
from 4 feet (1.22 meters)to 6 feet (1.83 metersl apart'
c) Mount antenna discharge unit as closely aspossibleto where
lead-inenters house.
ll
2

CONTENTS
Features
Rear
PanelFacilities
Connection
Diagram
Connections
Antenna
and
Ground
Connections
FEATURES
3
4
5
6
8
Front
PanelFacilities 10
Operations .'.." 12
TapeDeckOperations
Specifications
Troubleshooting
. . .
13
14
15
Low
Distortion
PowerAmplifier
The poweramplifier
employsa first-stagedifferential
amplifierwith current mirror load and all-stage
direct-
coupled
pure
complementary
OCL circuit.As a result,it
deliversa
Continuous
p0wer
0utput
of
30watts*
per
chan'
nel,min.,
atSohms
from
20Hertzto 20,000
Hertz
with
no
more
than0.05%
total
harmonic
distort
ion.
This is a poweramplifier
that packs an ample
power
punch.
Thetonecontrol
circuitsareconfigured
asCR-type
tone controls
andareinserted
in the NFB circuitof the
power
amplifier.
They varythefrequencyresponse
of the
power
amplifier's
NFB circuitandcontribute
to reducing
noise.
Phono
Equalizer
Amplifier
for Faithful
Sound
Reproduction
of Records
The low-noise
transistors
and low noise
elements
com-
bineto produce
a signal-to-noise
ratio (PHONO)
of 76dB
(lHF-A).
Asa result,theRIAAdeviation,
which
has
a
great
bearing
on thesound
quality,
isimprovedto t0.3dB(over
30 to15,000H2),
andthe phonooverload
levelis 140mV
(1kHz,T.H.D.
0.1%)with respect
to a 2.5mV
rating.
This
is,then,
a design
which
has
plenty
to spare
and
which
per-
mits the almost
distortion-free
play of records
on your
turntable
for the
best
inhigh-fidelity.
FMTuner
for Accurate andStableReception
The
front endemploys
a3-gangvariablecapacitor
andJ-
FET in order
to yield
a highlevelof sensitivityandeffec-
tiveinterference
rejection.Featuredintheintermediate
fre-
quency stage
is two ceramic
filters with an outstanding
group
delay
responseanda quadrature
detector.Thiscon-
figurationhelps
provide
anexcellentselectivityanddistor-
tion. The MPX sectionemploysan lC-based
phase-locked
loopcircuit
for separation
whichis
always
amazinglyclear,
and it is not affectedby variationsin theambient
condi-
tionsinany
way.
FluorescentDisplay
Tubesfor PowerMeter
Featured
for the power
meteris a fluorescent
display
tube
usingthe latest digital
technology,a
logarithmiccom-
pression
circuitanda peak
holdcircuit.This
combination
allowsa power outputleveldisplay
from 0.01
wattsup to
40wattswithoutrangeselectionona
bar
graph
display.
FullComplementof Accessory
Functions
r FUNCTION,
SPEAKERS
indicators:
You can find out exactly wherethe functionselector
and the speakerswitch are set sincethe corresponding
indicators
light up, telling
you at aglance
theprogram
source.
o TwoTAPE
MONITOR
switches:
Theseswitches
facilitatetapeoperation
when
you have
connectedtwo tape decksand you are playing back
tapesorduplicating
(dubbing).
o TwoSPEAKERS
terminals:
You can connect two sets of speaker
systems.
This
meansthat you can
listen
to the program
on one
set
in
anotherroom.
o LOUDNESS
switch:
This
gives
thereproducedsoundarichertoneeven
under
low-volumelisteningconditions.
o AM STEREOOUTPUT
jacks:
Connect
your stereoadaptor
to this
jack
whenlistening
to this
jack
whenlistening
to AM stereobroadcasts.
*Measured pursuant to the Federal Trade Commission's Trade
Regutation rule on Power Output.Claims for Amplifiers.
5

II
REAR
PANEL
FACILITIES
O AM STEREO
OUTPUT
JACK
This
jack
is
for AM stereo
broadcasts'
When
listening
the
AM stereobroadcasts,
connect the adaptor
component
to this jack. For further details,
refer
to the operating
instructions
of the
AM stereo
adaptor
component'
@ SPEAKERS
TERMINALS
A
Connect
yourfirst
pair
of speakers
to these
terminals'
@ SPEAKERS
TERMINALS
B
Connect
your
second
pair
ofspeakers
to these
terminals'
@ FM ANTENNA
INPUT
TERMINALS
FOR
3OO-OHM
TWIN-LEAD
FEEDER
Connect
a 300-ohm
twin-lead
feeder
to these
terminals
when using
it as
the feeder
from the FM antenna'
Use
these
terminals
when connecting
the accessory
T-type
FMantenna.
@ FM ANTENNA
INPUT
TERMINALS
FOR
75-OHM
COAXIAL
CABLE
Connect
a 75-ohm
coaxial
cable
to these
terminals
when
using
it as
the
feeder
from
theFMantenna'
G) GNDTERMINAL
This is
thegroundterminal.
From
aspects
of both safety
and
reduced
noise.
connect
a
groundlead
to this
terminal'
@ AM ANTENNA
INPUT
TERMINAL
when using
an external
AM antenna,
connect
it to this
terminal.
@ GNDTERMINAL
This isthe ground
terminal.
Connect
thegroundwire
of
the
turntable,
etc.
to this
terminal'
@ PHONO
JACKS
Connectthe
turntable
output
cords
to these
jacks'
@ AUX JACKS
Theseareauxiliary
inputjacks.
Connect
a TV tuneror
cartridge
taPe
PlaYer
to them'
C) rapr 1 JACKS
Connect
thetape
deck
cords
to these
jacks.
Connect
the REC
(recording)
jacks
to theINPUT
jacks
on
the tape deck,and the PLAY (playback)
jacks
to the
OUTPUT
jacks.
@ TAPE 2 JACKS
Connect
your
second
tape
deckcords
to these
jacks'
G) ACOUTLETS
These
are
spare
power
outlets'
Insertthe power
plug
on
the stereo
components
(turntable,
tape
deck,
etc') into
theseoutlets.
SWITCHED: The power
supplied
through
this
out-
let iscoupled
to theoperation
of the
receiver's
power
switch'
The
maximum
PowercapacitY
which maY be con-
nected
to thisoutlet
is50W.
UNSWITCHED: The power
isalways
supplied
through
thisoutlet
regardless
of the
positionof
the Power switch. The maximum
PowercapacitY
which maY be con-
nected
to thisoutlet
is
100W'
@ POWER
CORD
Plugthis
intoan
wallsocket.

CONNECTION
DIAGRAM
FM outdoor antenna AM outdoor antenna
OUTPUT
(PLAY)
Ground lead
TVtuner
sx-3600
l;lHii'
--i- I r*in
I tead
I feeder
I
TI
n
I
I
I
rll
ICoaxial
cable
r!ll
I L-----+l----l
--<---'l !
Ground lead
OUTPUT
(P.LAY} INPUT
{REC)
Left Right
Speaker
systemALeft Right Speaker
system B
tl
10-----------6-.1
F*l-F*:;
I A, /a\l/a\ A
l-ffi|@o
lst-
E -eeeE
o ffa .. '
F
Tapedeck 1Tape
deck
2@
Wall
socket

CONNECTIONS
PRECAUTIONS
. Set the POWERswitchto ON only whenyou have
completed
all the connections
of the stereo
system'
Always
set
this
switch
to OF
F position
if you
want
to
change
the
connections.
e All the receiver's
jacksarealigned for easy
connec-
tion in two rows:the upperrow for L (leftchannel)
and the lower row for R (rightchannel)'
Always
connected
L to L and R to R with the audio
com-
ponentoutput
and
input
jacks'
o Make
sure
that the connections
are
secure'
lmproper
connections
can generate
noiseor cause
the sound
to be
cut off.
SPEAKER
SYSTEM
CONNECTIONS
(Fig'
1)
The receiver
is providedwith two sets
of SPEAKERS
output terminals'
Use the A set when connecting
only
one set of speakers.
Viewedfrom the front, the R (right
channell
SPEAKERS
terminals
areon the right andthe
L (left channel)
SPEAKERS
terminals
are on the left'
Connectthe left channel
speaker
to the L terminals
and
the
right
channel
speaker
to theRterminals'
Gautions
when
connecting
thespeakers
1. Do not plug the receiver's
powercord into ah wall
socket beforethe speakers
arefully connected
to the
SPEAKERS
terminals.
2. The speaker
output terminals
havepolarities:minus
(black)
andplus(red).
Theinput
iacks
on thespeakers
alsohave
plus
andminus
polarities'When
connecting'
make
sure
thatthese
polarities
are
aligned:
plus
to plus
and minus to minus' lf the left and right speaker
polarities
are
misaligned,
thereproduced
sound
will not
display
anatural
stereo
effect.
3. Usespeakers
with a nominal impedance
of 4 ohmsor
more.
lf youwantto use
two sets
of speaker
system,
make
sure
that the impedance
of each
system
is8 ohms
or more'
4. Never
use
the
speakers
withthe
speaker
output
terminals
shorted
(minus
and
plus
jacks
connected)
since
this
may
be
damaged
the
power
transistors
inthe
receiver'
5. This receiver
delivers
a high
outputpower
and
so
make
sure
that you use
speakers
with a high
allowable
input'
6. The high output powerof this receiver
requires
that
the speaker
lead
wires
havean ample
current
carrying
capacity.
Use
wires
with a high
capacity
and
connect
themsecurely.
lf you use
lowcapacity
wires
and
donot
connect
them properly,
the reproduced
sound
will be
adversely
affected
and heat
generationor short
circuits
maybe
caused.
Speaker
lead
wirePreParation
and
connection
A\-.-
q2-\ sPeaker
cord
-ll
rl
1Omm
o
SPEAKERS terminals
Connect You'r
second
Pair
-rk
Twist the strands
0
Fig.1
Processingandconnecting
thespeaker
cords
1. Cut off the covering of the speakercordsasshown in
Fig. l.
2. tf'the strandsat the tip of the cord arepointing in
all directions, twist them with your thumb and fore-
finger. Otherwise some of the strandsmay come into
contact with other terminals and cords, and causea
short.
3. Push the minus (btack) lever of the speakerterminals
with your thumb and insert the minus speakerlead
into thehole.
The tead is locked into position when the lever is re
leased.
Checkthat theled is connected
firmly.
4. tn the sameway, connect theplus speakerlead to the
plus terminal (red).
5. Check that the core wiresof the speakerleadsare not
projecting from the terminals. lf they should come
into contact, this will give rise to a short circuit.

CONNECTIONS
TURNTABLE
GONNECTIONS
(Fig.
2)
Connect
the output cords
of a turntable
to the PHONO
inputjacks.
Besure
to connect
left (L) channel
and
right
(R) channel
correctly.
Connect
the groundleadof the
turntable
to the
GNDterminal
on
thereceiver.
NOTE:
The way in which the output cords are attached will depend on
the rype of cartridge used. lf you intend to use a low'output
moving coil (Md cartridge, always provide a special MC trcns'
former or a head amqlifier.
AUXJACK
GONNECTIONS
(Fig.3)
These
jacks
can be connectedto the OUTPUT(PLAY)
jacks
on a TV tuner,
cartridge
tape
player
or tape
deck.
Use
connecting
cords
with pin plugs
to connect
theOUT-
PUT
jacks
on the
component
withtheAUX iacks'
Connect
theleftchannel
and
right
channel
properly.
TAPEDECK
CONNECTIONS
(Fis.4)
The receiver
isprovided
with two setsof recording
(TAPE
REC)outputjacks
andtwosets
of playback
(TAPE
PLAYI
input
jacks.
Connect
eachofthe
jacks
in
the
followingway
using
theconnecting
cords
whichcome
withthe
tape
deck.
The upper
rowof jacks
is
for theleftchannel
(L) andthe
lower
row
fortheright
channel
(R).
Connections
for recording
Connect
the recording
input jacks
(INPUT REC)on the
tape
deck
to the
TAPE1 REC
jacks
onthe
receiver.
Connections
for playback
Connect
the playback
outputjacks(OUTPUT
PLAY) on
the tapedeck
to theTAPE 1 PLAY jacks
on the receiver'
TAPE
2 JACK
GONNEGTIONS
(Fig.5)
A second tapedeck or other adaptorcomponent
can be
connected
to these
terminals.
sx-3600
o.00ooo!ooooo
TVtuner
sx-3600
o.rrooo00oooo
AUX input
jacks
sx-3600
o.roooooooooo
sx-3600
o.rrooooroooo
Fig.
3
Tape deck 1
Reverberationamplif ier
Fis.4
Fis.5
7
Turntable
+@)@
i@r@
Recording connections

ANTENNA
AND GROUND
CONNECTIONS
FMANTENNAS
Therearetwo methods
you canuse
whenconnecting
the
FM antenna
to the antenna
input terminals:
you can
use
a300-ohm
twin-lead
feederora75-ohm
coaxial
cable.
Pioneerrecommends
the 75-ohmcoaxial
cable
(RG59U,
etc.) if you want your receiverto display
its capabilities
to the full. The coaxial
cable
ismoreeffective
than the
twin-lead
feeder in safeguarding
against
external
inter-
ference
noise
from impairing
the sound
quality.
In other
words,
twin-lead
feedersare
liable
to pick up
external
noise,
and
this
iswhytheyare
notrecommended.
CONNECTIONS
USING
A 75.OHM
COAXIAL
CABLE
Referto Fig.6 andfollow the procedure.
Preparethetip
of the coaxialcable
andconnect
it to the antenna
input
terminals
(75O-UNBAL).
3fi)ohm feeder preparation
1. Cut out the center
portion.
2. Twist the leadwire.
3. Unscrewthe terminal capand wind the
wire around the stud, between the
toothed washer
and the base.
4. Tighten the terminal
cap.
CONNECTIONSUSING
A 3OO-OHM
TWIN-LEADFEEDER
In caseswhere
it isonly possible
to useatwin-lead
feeder
with a community receiving
system
antenna,
refer to
Fig.6 andfollow the procedure.
Preparethe ends
of the
twin-lead
feederandattach
them
to the
300O-BAL
antenna
input
terminals.
Then
makethe
twin-lead
feeder
as
shortas
possible
butdo not bundle
thewiresor runthem
loose
on
the
floor.
ACCESSORY
T.TYPE
ANTENNA
This antenna is designed
to allow you to receive
FM
programs
in areas
where strongsignals
are beamed
by
broadcasting
stations
until you install
your FM ant€nna'
As shown in Fig.6, attach
theantenna
to the300O-BAL
antenna
inputterminals
andthen
tuneinto an FM
station,
followingthe instructions
listed
under
"FM RECEPTION"
on page
12.Extendbothendsof the
antenna
horizontally,
locatethe optimum receiving
location by movingthe
antenna
to the leftor right,or upordown.and
then
secure
ittotheceilingor
wall.
Station
direction
75-ohm coaxial cablepreparation
1. Strip the end of the cable as shown in
step O .
2. Prepare the end as shown in steps @ .
3. Unscrewthe terminal cap and wind the
wire around the stud, between the
toothed washerand the base.
4. Tightenthe terminal
cap.
-
T-type antenna
connection
T.lype FM antenna
t
Fig.6

ANTENNA
ANDGROUND
CONNECTIONS
AM ANTENNA
This receivercontainsan AM bar antenna.
When
you are
listeningto an
AM broadcastandthe receptionis
poor,
try
changingthe
directionofthe
unit itself
(Fig.
7).
The barantenna
which is secured
inside
theunit features
directionality,and
soinstallthe
unit inthe
position
which
provides
optimum
reception.
o ln caseswhen the barantenna
is insufficient
for ade-
' quatereception,
an indoorAM antenna
canbe made
from a length
(5 to 6 meters)of vinyl insulated
wire
as
shown
in Fig. 8, connectone
endofthewireto the
AM
antenna
terminal
andsuspend
thefreeend
froman wall
orceiling
atas
highalocationas
possible.
o lf reception
is
still
difficult
with an indoor
antenna,
use
vinyl insulatedwire to erectan outdoor
AM antenna
between
two supports
as'shown
in Fig. 8.
GROUNDING
From the viewpoint of both safety and reduced
noise,
Pioneerrecommends
that you employa ground
asshown
in Fig. 8. Connect
the ground
lead
to the GND terminal
of the receiver.
Never
connect
it to a gas
pipe
or other
dangerous
location.
Fis.7
Fis.8
Indoor AM antenna
(vinyl insulatedwire)
FM
ANTENNA
LOCATION
The signals transmitted
by an FM broadcasting
station
inevitablybecome
weakwhen receivedbehind
moun-
tains,
between
buildingsand inside
reinforcedconcrete
structures.
In weak-signalareas,signals
which are
reflected
off mountains
andotherobstacles
intheir
path
may be picked up by the antenna,
which causes
a
-(\
' \\\ station direction
--\.i
More
aoove
multipath effect. This adverselyaffects the sound
received.Thisiswhy it isnecessarytochoosean
antenna
and installationlocationwhich arebestsuitedto cope
with the ambientconditions
and the strength
of the
signals.
Bearin mind the followingpoints
anddeterminethe
optimumlocation
(height
anddirection).
a Fsederor cable
should
not directly
contact other structures.
r Keep cabling
asshort as
possible
Fig.9
than 4 n
ground
I
I
I
-L
Select location away
from traffic noiseand
with clear
line
of sight
s

r
FRONTPANELFACILITIES
O POWER
SWITCH
Set this switch
to ON to supply
power
to the receiver.
@ SPEAKER
INDICATORS
Theselampslight according
to the depressed
speaker
switch.
@ POWER
METER
This meter
allows
you to readout the rated
power
level
on the fluorescent
display
tube when speakers
with a
nominal impedance
of 8 ohms are connected
to the
speaker
terminals.
@ DIAL POINTER
This
pointer
indicates
the
broadcasting
stations.
@ AM/FMTUNING
METER
Whenan
AM program
is
received,
themeter
functions
as
a
signal
meter.
Adjustthetuning
knobso
thatthepointer
deflects
asfar
to the
rightas
possible'
Whenan FM program
isreceived,
themeter
functions
as
a
tuning
meter.
Adjust
thetuning
knobsothatthe
pointer
is
positioned
inthecenter.
@ FM STEREOINDICATOR
This indicatorlightsup when receivingan FM stereo
program.
O TUNING
KNOB
Usethis knob to select
thestation.
Observethe AM/FM
tuning meter,andsetthe tuningknob to the optimum
tuning
point
whenaligning
thetargetbroadcast
station.
@ FUNCTION
INDICATORS
Theselampsindicatethe
position
of the
function
selector.
@ HEADPHoNE
JAcK
Plug
the headphones
into this jack when you want to
listen
through
your
stereoheadphones.
Release
both speakerswitchesif youwantto listento the
sound
through
your
headphones
only.
@ SPEAKERSWITCHES
Depress
the switchcorrespondingto the speakerscon-
nected
to theSPEAKERSterminals
(A or B)ontherear
panel.
You can depressboth of thesebuttons to listento the
soundfrom two pairs
of speaker
systems
at the same
time.

FRONTPANEL FACILITIES
@ enssANDTREBLE
coNTRoLS
Usethesecontrols
to adjust thebassandthe
treble.
lf you
turn thebass
control
to therightfromits
center
{0)
posi-
tion,you will beable
to emphasizethesound inthelow-
frequency
range.
Conversely.
turningthis controlto the
left from thecenter
(0)
position
will attenuate the
sound.
You canuse
thetreble
controlto adjustthesound
inthe
high-frequencyrange.
@ BALANcEcoNTRoL
Usethis control to balancethe volumeof the left and
rightchannels.
First,
however,setthe mode/FMmuting
switchto MONO/OFF.
lf thesound
appears
to belouder
on theright,it means
that
thevolumeof therightchannel
ishigher.
Turnthe balancecontrolto the leftandadjust.
Conversely,
if thesoundappearsto be louderon theleft.
it meansthat the volumeof the left channel
is higher.
Therefore,
turn the balance
control to the right and
adjust. After adjusting,return the mode/FM muting
switchto STEREO/ON.
@ TAPEMONITOR
SWITCHES
Depresstheswitch
1with atapedeck
whichisconnected
to theTAPE 1jacks
(REC
and
PLAY)
when
youwantto
monitor
theplayback or recordingof atape.
Thetapeon
a deckwhichisconnectedto the
TAPE2jacks(REC
and
PLAY) can be similarlymonitored
by depressing
the
switch2.
For further details, refer to "TAPE DECK OPERA-
TIONS"
on
page
13.
NOTE:
Sef these switches to the released (OFF) position when you
listening to records or a broadcasting.
@
rurucrtoN
sELEcroR
Usethis
selector
to selectthe
program
source.
AM: Set
here
whenreceivingan
AM broadcast.
FM: Sethere
whenreceivingan
FMbroadcast.
PHONO: Set herewhenplaying
recordson a turntable
connected
to the
PHONO
jacks.
AUX: Set herewhen listeningto a program
source
whichisconnectedto the
AUX jacks.
@ MoDE/FMMUTTNG swrrcH
This
switchis
acombinationof the FM mutingswitchand
the modeselector
switch.Whenthe switch isleft unde-
pressed
(STE
REO/ON) the reproductionis in stereo
mode,while
the FM mutingfunction
actsto suppress
un-
pleasant
interstation
noise
while listeningto FM broad-
casting.
When the switch is depressed
(MONO/OFFposition),
however,reproduction
is in monomode, whilethe FM
muting function doesnot act, thus enabling
suitable
reception
ofweakradiostationswhen
tuning
in
to theFM
broadcasting
station.
NOTE:
Recording stereophonically with the mode/FM muting switch in
the MONO/OFF position may cause deterioration in channel se-
pantion.
@ louolrrEss
swtrcH
Whenlistening
to a performance
with the volume
con-
trol turned
down,
depress
this
switch
andthebasswill be
accentuated.
When
thevolume
islow,
thehuman
ear
finds
it harder
to
hear
thebassthan
when
thevolume
ishigh.
Theloudness
switch
isthus
designed
to compensate
forthisdeficiency.
By depressing
thisswitch,
the basscome
throughmuch
more
strongly
and
thesound
takes
ona
punch
evenwhen
thevolume
control
is
turneddown.
@ volulrE coNTRoL
Use
thiscontrol
to adjust
theoutputlevel
tothespeakers
and
headphones.
Turn it clockwise
to increase
theoutput
level.
No
sound
will be heard
if yousetit to "0".

OPERATIONS
PRIOR
TO SWITCHING
POWERON
Beforeswitching
thepower on,setthe various
controls
as
follows;
1. Depressthe speaker
switch that corresponds
to the
speaker
system
which isconnectedto the SPEAKERS
terminals
onthe
rear
panel.
2. Setthebassand
treblecontrols
to 0 position.
3. Set
thebalancecontrol
to thecenter
position.
4. Release the
tapemonitor
switches.
5. Release
the
mode/FM
mutingswitch.
6. Releasetheloudnessswitch.
7. Setthevolume
control
to 0position.
FM RECEPTION
1. Setthefunction
selectorto FM.
2. Slightlyturn the volumecontrolclockwise
direction
to
obtain
thesound.
3. Rotatethe tuningknob andtune in thestation
whose
programyou wantto listen
to. Adjust theknobsothat
the AM/FM tuning meter
pointer
ispositioned
in the
center.
When
tuningin a station,
thepointer deflects
to
theleftor right,and
perfect
tuning
isindicated
whenthe
pointer
is
positioned
inthecenter.
FM TUNING
r- l--f
tl, ll--
4
Fig.
10
The FM stereo
indicatorlightswith an FM stereo
broadcast.
In order to listento weak-signal
FM stations, setthe
mode/FM
muting
switchto MONO/OFF
position
and
re-
tune.
Adjustthevolume
withthevolumecontrol.
Set the tone controlsfor the preferred
bassandtreble
levels.
AM RECEPTION
1. Set
the
function
selectorto AM.
2. Slightly
turn thevolumecontrolclockwisedirectionto
obtainthesound.
3. Rotate the tuningknob andtune in the stationwhose
program
you wantto listen
to. Adjust the knobsothat
the AM/FM tuningmeter
pointer
deflects
asfarto the
right
as
possible.
FM TUNING
-\l
AM
Fis.
11
4. Adjust
thevolumewiththevolume
control.
5. Setthe tone controls for the preferred bass
and
treble
levels.
PLAYING
RECORDS
1.Set the
function
selectorto PHONO.
2. Operatetheturntableto play
therecord.
3. Adjust the
volumewith thevolumecontrol.
4. Setthe tonecontrols for the preferred bassand
treble
levels.
Precautions
when
playing
records
o Lower the stylus
gentlyonto the surfaceof the record.
It is
a
good
ideato turnthevolumedown
whenlowering
the
stylusonto
therecord.
r Do not causethe turntableto vibratewhilea recordis
being
played
sincethiswill causethestylus
tojump and
scratch
the record. Do not turn off the power if the
stylusisstilltracing
grooves
onthe
record.
PLAYING
A STEREO
COMPONENT
CONNECTEDTO THE AUX JACKS
1. Set thefunctionselector
to AUX.
2. Operate theaudio componentwhich
you have
connect-
edto theAUX jacks,
3. Adjustthevolume with thevolumecontrol.
4. Setthe tone controls for the preferred
bass
andtreble
levels.
4.
5.

TAPE
DECK
OPERATIONS
PLAY BACK (Fig. 12)
1.Setthetapemonitor
switch1 to ON if thetape
deck
is
connected
to the TAPE 1 jacks.
Setthe tape
monitor
switch
2 to ON if it is
connected
to theTAPE2jacks.
2. Operate
thetape
deckcontrols
for playback.
3. Adjustthe
volume
withthe
volumecontrol.
4. Set the tone controlsfor the preferred
bass
andtreble
levels.
NOTES:
1. Always reteaseboth of the tape monitor switches (OFF) when
you are not PlaYing back a taPe.
2. As tong as the tape monitor switch I or 2 is at ON' you will be
abte to ptay back a tape regardless of the setting of the func'
tion selector.
3. tf you set both tape monitor switches to ON, you will hear the
ptayback sound of the tape deck connected to the TAPE 2
iacks.
REGORDING
(Fig.
13)
1. Setthe functionselector
to the program
source
to be
recorded.
2. Plavthe
program
source
(record,
FMbroadcast,
etc.).
3. Set
therecording
levelon
the
tape
deck.
4. Startthe recording
by followingthe tape
deckt record-
ing
procedure.
NOTES:
l. When recording, keep the mode/FM mute switch atSTEREO/
oN.
2. The receiver's volume, bassand treble controls have no effect
on the recorded sound when a recording is being made.
Tapemonitoring
lf a recording
is being made
on a 3-head
tape
deck,the
recordedsound can be monitored through the speaker
sistems
if the tapemonitoi switch1 or 2 is set
to ON,
depending
on which
TAPE
jacks
thetape
deckisconnected
to. In thiscase,both recordingand
playback
connections
must
be
made.
NOTE:
lf you have a 2-head open-reel deck or ca&tte d*k, you will not
be abte to monitor the recorded sound even if you set the tape
monitor switch to ON. However, you will be able to hear the
sound at the playback end (program sourcd.
Duplicating
andediting
recordedtapes
1.As shown in Fig.
14,connectthe tapedecks
to the
receiver's
TAPE 1and
TAPE2jacks.
2. Placethe previously
recorded
tape on the deck con'
nectedto TAPE 1 jacks,
while
placing
a blank
tape
on
the
other
unit.
3. Setthe
tape
monitor
switch
'lto ON'
4. Play back the recorded
tape on the tape deck 1 and
recordit on
tape
deck
2.
5. Set
thetape
monitor
switch
2 to ONwhen
youwant
to
monitor
the
recordedsound.
Fis.12
NOTE:
When recording with two tape decks simultaneously, do not
operate the tape monitor I switch as this will interrupt the signal
to the TAPE 2 deck.
Tapedeck 1
(Playback) Tape
deck
2
NOTE:
It is impossible to duplicate from the tape deck connected to the
TAPE
2jacksto the tapedeckconneted to the TAPE I jacks.
Tapedeck 1
Tapedeck 1
t-a

SPECIFICATIONS
Amplifier
Section
Continuous
p0wer
0utput
of30watts*
per
chan'
nel,min.,
at
8
ohms
from
20Hertzto 20,000
Hertz
with
n0
more
ihan0.05%
total
harmonic
distortion.
Total Harmonic
Distortionl2O
Hertz
to 20,000
Hertz,
8ohms,
from
AUX)
continuous
rated
Power
output . '
15
watts
per
channel
Power
output
fntermodulation
Distortion
(50
Hertz:7,000
Hertz
=4 "1,
8 ohms,
fromAUX)
Distortion
(at
65dBf)
MONO 100H2.
lkHz .
6kHz .
STEREO
100H2.
lkHz .
6kHz .
Captureratio . .
Alternate
ChannelSelectivity
400kHz
Stereo
Separation
0.1o/o
o.1%
o.15%
o.2%
0.15o/o
o.25%
1.0dB
60dB
Damping
Factor
(20
Hertz
to 20,000
Hertz.8 ohms)
lkHz . . 40dB
30Hzto 15kHz 35dB
FrequencyResponse 2OHzto
Spurious
ResponseRatio .
lmageResponse
Ratio
lF Response
Ratio .
AM Suppression Ratio
Subcarrier
Product
Ratio .
SCARejectionRatio
Muting
Threshold
AntennaInput .
Nomorethan
0.05%
Nomore
than0.03%
35
2.5mV/50
kilohms
150mV/50
kilohms
1,000H2)
140mV
150mV
A, B,A+B
30Hz
to 15,000H2
t0.3dB
lOHz
toso,oooHz]!'!aa
Nomore
than
0.05%
Nomore
than
0.03%
16.1dBf
(3.spv)
37.0dBf
(39pV)
78dB
(at
65dBf)
72dB
(at
85dBf)
rsrcnzi!'!aa
continuous
rated
Power
output . .
'
u
::i'
:':
::"::l
::T'
::11'
I
nput(Sensitivity/l
mpedance)
PHONO
AUX,TAPE
PLAY
1,2 . . . . . . .
PhonoOverload
Level
(T.H.D.0.i%,
PHONO
Output
TAPE
REC'1,2 ..
Speaker
Frequency
Response
PHONO
(RIAA
Equalization)
65dB
65dB
90dB
55dB
40dB
60dB
19.2dBf
(SpV)
300
ohms
balanced,
75ohmsunbalanced.
AUX,
TAPE
PLAY
1,2
ToneControl
BASS. tgdB (100H2)
TREBLE tBdB
(10,000H2)
Loudness
Contour
(Volume
controlset
at-40dB position)
+6dB
(100H2)
Hum
and
Noise
(lHF,
short-circuited,
A network)
PHONO .. .. . 76dB
AUX,TAPEPLAY 1,2 . . .. . . . 96dB
FMTunerSection
Usabfesensitivity
(lHF) . . . 11.2dB',t
(2.0ttVl
50dB
Ouieting
Sensitivity
AMTuner
Section
Sensitivity
(lHF,FerriteAntenna). 3OOpV/m
(lHF,Ext.antenna)
. . . 1SpV
Selectivity . 27dB
Signal-to-NoiseRatio .... 52dB
lmageResponseRatio ... 32dB
lFResponseRatio
. ..... 40dB
Antenna .... Ferriteloopstickantenna
Miscellaneous
PowerRequirements .... AC120V,60Hz
PowerConsumption ....200W
Dimensions .... 450(Wlxla2Hlx306(D)mm
1
7-11/16(W)x 5-9/16(H) x 12'1
/16lDlin
Weight
(withoutpackage)
Modelfor U.S. 8.2ks
(181b
loz)
ModelforCanada .. . .. 8.5kg
l18lb12ozl
FurnishedParts
Operatinginstructions
. . . . . . . . . 1
FMT-typeantenna ..... 1
*Measured pursuant to the Federal Trade commission's Trade
Regulationruleon PowerOutput Claimsfor Amplifiers.
NOTE:
Specificationsand the designsubject to possiblemodifications
without noticedue to improvements.
MONO
STEREO
Signal-to-Noise
Ratio
MONO
STEREO

TROUBLESHOOTING
lf your stereo
appears
to malfunction,
firstchecksuch
things
asthecontrols
(power
switch,
functionswitch,
tape
monitor
switch,
etc.)and
connecting
cords
(components
connected
correctly).
Noise:
Thereare
avarietyof noises
relatingto theoperation
of ahi-fiunit.Thereare
generally
dividedinto
twotypes:
(1)
the
unitis
faulty
(a
transistor
orpart
hasdeteriorated),
and
(2)
anexternal
sourceisinterfering
withthe
unit.
Whena hi-fiunit produces
anunpleasant
noise,
it isoften
assumed
thattheunitis
faulty;however,statistical
records
indicate
that the maiority
of noise
produced
in hi-fiacoustic
unitsresults
from externalsources
of noise:
Dueto the inherent
high-
sensitivity
andthehigh-fidelity
reproduction,
theunit amplifies
and
reproduces
extraneousnoise,
however
small,
into
audible
output noise.
lf your receiver
produces
a noise,
checkaccording
to the following tableand
trace
the source
of noise
for the
appropriate
corrective
action.
Symptom Surpected source of noile Diagonosis
and remedy
o
o
o
o
=
Continuous
or intermittent
buzzingnoise. . Static (
lightingl
oA f
luorescentlamp, motor, or thermostat may be
in use
in the houseor in the vicinity.
ln many cases,
it is very difficult.to remove the
source of noise. ln order to make the radio input
larger than the noise level,set up a good outdoor
antennaand make a complete grounding.
When a station istuned in
hum is mixed in the pro-
gram.
oA poor f
luorescent lamp, motor, or electric
heatermay be in use
in the houseor nearby. Reversingthe power plug may occasionally allevi. ate this noise problem. Usuallyit isvery difficult
to eliminatethe noise.
Hissing
noisean
AM (medi-
um wavel reception. oThe frequency of an adjacent station is interfer-
ing with that of the station being tuned in to
( beat interference).
.TV set is on in the same
housewith the receiver.
lmpossible to remove such interference. lf the
cause of such noise is the TV set, increase the
distancebetween the TV setand receiver.
Static noise (in particular,
when automobiles run
close
to the house).
.White noise
generated
from automobileengines.
. High-frequency sewing machine or welding
machine being used
nearyour house.
In an areasurrounded
by hills or high buildings,
the FM input signals
areveryweak.
Thus
the noise
limiter in the circuit losesits function. Set up an
FM outdoor antenna having many director el€-
ments.
Reception of FM stereo
program contains more
noise than FM mono Pro-
gram.
oNote that the service area covered by an FM
stereobroadcast is
about 50%of that of a regular
mono broadcast.
Increasing
the FM input signal
may alleviate
this
problem. Use an exclusiw FM outdoor antenna
instead
of the indoor T-type antenna.
o
o
3
Hum or buzz. When
switched to radio recep-
tion. the noisedisaPPears.
oPoorconnection
shielded
wire. (al
. Jack connection is loose, (b)
o Power lead of fluorescent lamp passes
near the
shielded
wire. (c)
oPoor
grounding. (d)
oHam transmitting station or TV transmitting
station
isnear
your house. (e)
Correctthe conditions
stated
in (al, (bl, (c),
or (dl
In caseof (e).
report it to anofficial authority.
Output tone quality is
Door
and mixedwith noise.
Trebleisnot clear.
. Stylusis
worn. (a)
. Recordisworn. (b)
. Dustadhering
to stylus. (cl
.Stylus isimproperly mounted. (d)
.Stylus pressure
(tracking force) isnot correct. (e)
o The treble levelistoo high.
Check(a)
through (e)
and correct
the condition.
Turn the treblecontrol to O,
In playing a record, in-
creasingthe volume causes
howling.
o Distancebetween the turntable and the speakers
istoo short.
oThe turntable or speakers supports are unstable.
Increase
the distance or rearrange
the installation
of the unit and speakers.
(lnstalling
the turntable
on a f irm, solid standmay alleviate
this problem.)
Do not enhance the basssound level excessively.
15

PI(INEEFI ELECTFI(INIC CCTF|PQIFIATI(IN 4-'1
,Mesurc 1-chorne, Mesuno-ku, Tokyo 153, Japan
lJ.g. PfctNEEFI ELECTFTCINICEiCctFtttC,RATtC'N 85 Oxford Dnive, Moonachie, New Jersey O7O74, U.S.A.
PToNEEFI ELEC;TFICINIC tEUFTC'PE' N.\/. Luithegen-Haven g,2O3O Antwenp, E}elgium
ptONEEFt ELECITFTCI\IICS
AlJC|TtlALtA PTY. LTE.178-184 Boundany Fload, Elnaeside. Victonia 395, Austnalia
<8OC14F9EO2; Printedin
Japan <ARB-361
-0)
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1. RESISTORS:
lndicatd in o, 7.W, !5% roleraoce
unl6s oth€rwise noted k r kA
M: Mtr, {F) : r1%,lG) i !2%, {K) 1l*rolerance
2. CAPACITOFS:
indicatd in cap.cfty (lF)/voltase (V) unle$ otherwis noredp , pF
ndication wthout voltaF is SV excepr elelrotvtic capachor
The!ndeilind indicai6 the swhch pGiiion.
Thh b the basicschehatic di4r.m, blt rhe actuarcrrcurrmay vary
d!e to nrprovemenrs in dsign.
3. VOLTAGE,
CUFR€NT
E :Signalvoha$ at 30 W + 30 W 80 ouipul ilkHz)
E rDCvoltase (V) at no inpur signal
Vllue in { ) b DCvolt4e at ratd power.
€ mA: Oc cufenr.i no input sisnal
4. OTHERS]
@ :Adj!sins rint.
The A mark tolnd on $me componeil pads indicaiA rhe im.
@narce ot the safety letor ol the pan. Theretore,
whenreptacing,
besre to uw padsof identic.t d6iqnalion.
SWITCHES'
SI I FUNCTION AM_FM-PHONO-AUX
S2I,2 : FM MUTING/MG ON/STEREO-OFF/MONO
s2-3,4: LOUDNESS ON- gEl
s31 : TA% MONITORj ON-ffi
S3-2 : TAPE MONITOR
2 oN - ffi
s4-1t2; SPEAXERS A 9!- OFF
g 3,4. SPilKERS B ON - ffi
SlOl : rcWER ON- OFF
I
I
l- .uo
o""',
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A I --f-V)I XR
2SC96A O34 2SOa80
033,34
REGULATOR
m!9
GP-50 __i
SITCHED UNSW]TCHS
$w Mrx. t@w MA.
o2,3 HArzqO
FL DRIVE
or4.5 AEL-324 _l
03,4 152473 o$ zsm
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Ass'y I
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