Pioneer SX-2300 User manual

@) PIONEER’
The future of sound and vision.
Service
ORDER NO.
ARP1477
STEREO RECEIVER
SX=-23500
SsX=-1300
MODEL SX-2300 and SX-1300 HAVE FIVE VERSIONS:
Applicable model!
Type /~sx-2300 | sx-1300_ Power reguirement Destination
AC120V only U.S.A. and Canada
AC110V, 120V-127V, 220V, 240V Kingdom of SaudiArabia and general
(switchable) market
a a SE
fo | 0 |
AC220V, 240V (switchabie) United Kingdom
¢This manual is applicable to the SX-2300/KUC, SD, SX-1300/KUC and SD types.
eFor the SX-2300/SD, SX-1300/KUC and SD types, refer to pages 30-31
*For the other types, refer to additional service manuals.
¢Ce manuel pour le service comprend les explications en frangais de réglage. (p27)
*Este manual de servicio trate del método ajuste escrito en espafiol. (P28)
CONTENTS
1. SAFETY INFORMATION <--eceeereeeeee eee 2 B. PACKING vecceecescceteeceeceeeeeeeeetens eeee sarees 25
2. SPECIFICATIONS <<tcrtccreecteeeee rer eee teen eees 3 D: ADJUSTMENT Qaieitemmcieteagguseutenny 25
3. PANEL FACILITIES «-1-s0-000-eserereeeeereeees 4 EECA CEs wits sndanateehovlarecacealiasteeeed 97
4, EXPLODED VIEWS AND PARTS LIST --: 6 AAUST Esai Aietieeinetens 28
5. SCHEMATIC DIAGRAM «+--+ ++ errs eee 9 10> IC INFORMATION <0:s20ts-¢-s-2e tents veenees 29
6. P.C. BOARDS CONNECTION 11, FOR SX-2300/SD, SX-1300/KUC
DIAGRAM cortccsecsteresesenesresteeessesonseens 13 AND SX-1300/SD MODELS «18-1 3}
7. ELECTRICAL PARTS LIST -----+----+++7+++ 22
PIONEER ELECTRONIC CORPORATION = 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan
PIONEER ELECTRONICS SERVICE INC. P.O. Box 1760, Long Beach, California 90801 U.S.A.
PIONEER ELECTRONICS OF CANADA, INC. 505 Cochrane Drive, Markham, Ontario L3R 8E3 Canada
PIONEER ELECTRONIC [EUROPE] N.V. Keetberglaan 1, 2740 Beveren, Belgium
PIONEER ELECTRONICS AUSTRALIA PTY. LTD. 178-184 Boundary Road, Braeside, Victoria 3195, Australia TEL: [03] 580-9911
YO © DEC. 1987 Frimted in Japan

> Gre iale ra 48 fe
1.
SAFETY
INFORMATION
1.
SAFETY
PRECAUTIONS
The
following
check
should
be
performed
for
the
continued
protection
of
the
customer
and
service
tech-
nician.
LEAKAGE
CURRENT
CHECK
Measure
leakage
current
to
a
known
earth
ground
(water
pipe,
conduit,
etc.)
by
connecting
a
leakage
current
tester
such
as
Simpson
Model
229-2
or
equivalent
between
the
earth
ground
and
all
exposed
metal
parts
of
the
appli-
ance
(input/output
terminals,
screwheads,
metal
overlays,
control
shaft,
etc.).
Plug
the
AC
line
cord
of
the
appliance
directly
into
a
120V
AC
60Hz
outlet
and
turn
the
AC
power
switch
on.
Any
current
measured
must
not
exceed
0.5mA.
Reading should
not be above
0.5mA
Test all
exposed metal
surfaces
eC 2-wire cord
SS
O Also test with
plug reversed Earth
(Using AC adapter ground
plug as required)
AC Leakage Test
ADVARSEL!
Lithiumbatteri. Eksplosionsfare. Udskift-
ning ma kun foretages af en sagkyndig,
og som beskrevet i servicemanuaien.
Denne advarsel or angivet pa produktet eller i
brugsvejledningen. Ved udskiftning af lithium
batterieme folges nedenstdende anveisning.
Batterierne ma kun udskiftes med batterier af
samme type og meerke.
ANY
MEASUREMENTS
NOT
WITHIN
THE
LIMITS
OUTLINED
ABOVE
ARE
INDICATIVE
OF
A
PO.
TENTIAL
SHOCK
HAZARD
AND
MUST
BE
COR-
RECTED
BEFORE
RETURNING
THE
APPLIANCE
TO
THE
CUSTOMER.
2.PRODUCT SAFETY NOTICE
Many
electrical
and
mechanical
parts
in
the
appliance
have
special
safety
related
characteristics.
These
are
often
not
evident
from
visual
inspection
nor
the
protection
afforded
by
them
necessarily
can
be
obtained
by
using
replacement
components
rated
for
voltage,
wattage,
etc.
Replacement
parts
which
have
these
special
safety
charac-
teristics
are
identified
in
this
Service
Manual.
Electrical
components
having
such
features
are
identified
by
marking
with
aA
on
the
schematics
and
on
the
parts
list
in
this
Service
Manual.
The
use
of
a
substitute
replacement
component
which
dose
not
have
the
same
safety
characteristics
as
the
PIONEER
recommended
replacement
one,
shown
in
the
parts
list
in
this
Service
Manual,
may
create
shock,
fire,
or
other
hazards.
Product
Safety
is
continuously
under
review
and
new
instructions
are
issued
from
time
to
time.
For
the
latest
information,
always
consult
the
current
PIONEER
Service
Manual.
A
subscription
to,
or
additional
copies
of,
PIONEER
Service
Manual
may
be
obtained
at
a
nominal
charge
from
PIONEER.
WARNING!
Lithium batteries. Danger of explosion.
Repiacement must be done by qualified
personnel and only by following the
instructions given in the service manual.
This warning is stated on the product or in the
operating instructions. When replacing the
lithium batteries, follow the note below.
The batteries must be replaced only by batter-
ies of the same type and manufacture.
VAROITUS!
Litiumparistot. Rajahdysvaara.
Vaihdon saa suorittaa ainoastaan
asiantunteva huoltoteknikko noudat-
tamalla huolto-ohjeessa annettuja
ohjeita.
Tama varoitus sijaitsee laitteessa_ tai
kaytt6ohjeessa.
Noudata
litiumparistoja
vaihtaessasi
alla
olevaa
huomautusta.
Paristot
on
vaihdettava
samantyyppisiin
ja
saman
tehtaan
valmistamiin
paristoihin.

2. SPECIFICATIONS
[SX-2300}
Amplifier Section
Continuous Average Power Output is 60 watts* per channel,
min., at 8 ohms from 20 Hertz to 20,000 Hertz with no more than
0.07% total harmonic distortion.
Continuous Power Output (both channei driven)*
20 Hz - 20 kHz, T.H.D. 0.07%, 8 Qo... cece eee ete ee eee 60 W + 60 W
Dynamic power output {with EIA test signal)
PLA EONS ol cacaeis cr Greg coas sabre akon oaiedayer es 145 W/125 W/85 W
Total Harmonic Distortion*
TRHZ;.60.Wy8. vices ceciccncudnsedes topes bacsaeaecatnecuseduedeieseaseatenraes 0.01%
Input (Sensitivity/Impedance)
PHONG § ons ce cacesss scsachavustbonctuesede yy cadet eswauamookeosue sesame 2.5 mV/47 kQ
CD, VCR/LINE, TAPE 1/DAT, TAPE 2 ..........esceceseseee eer eree 150 mV/22 kQ
Phono Overload Level (T.H.D. 0.01%, 1,000 Hz)
PHONO sien ices wiscack Siedler sedans gabetaetna sai cerktedsteas hen teagecteee ned 130 mV
Output Level
TARE REG sos cocieixsd shaioate Sots ds epee tapes ane eee a PEORIA eRe 150 mV
Frequency Response
PHONO (RIAA Equalization) ..............:0eee eee 30 Hz to 20,000 Hz +0.5 dB
CD, VCR/LINE, TAPE 1/DAT, TAPE 2...........--5- 40 Hz to 70,000 Hz “$3 dB
Signal-to-Noise Ratio (IHF, short circuited, A network)
PHONG, sh nrroseutanw lexan einus Sin td cendoeunes adi eaginrgde aa tenses 72 dB/75 dB
CD, VCR/LINE, TAPE 1/0AT, TAPE Quins: ciscivecowss¥acidezsinsprccys 97 dB/80 dB
Graphic Equalizer frequency band
ssa Rigs ee aetaithaawinaueerhahvay 100 Hz, 330 Hz, 1 kHz, 3.3 kHz, 10 kHz, +8 dB
FM Tuner Section
FreQUeNCY FANE... 0. cececcee secs eceneeenaeneee saree ee eeeeeetes 87.5 MHz to 108 MHz
Usable Sensitivity 10.8 dBf, [HF (0.95 “V/75 Q)
50 dB Quieting Sensitivity
MONO...
Rude tetarataad 15.3 dBf (1.6 uV/75 Q)
STEREO. iiieas cuts hacdssgguessunpianeonnieogeesnee edentess 37.1 dBF (19.5 uV/75 Q)
Signal-to-Noise Ratio
MOND leicasthvatsicbntiadecravanteateinlanvestesalalapiens cotedes’ 78 dB (at 85 dBf)
STEREO ... 75 dB (at 85 dBf)
Distortion
TERE ste5 sas chcseialdaprautiven nen coed erica ete rea nna laiay 0.3% {1 kHz}
Alternate Channel Selectivity .............cccecceeeee reenter eerie 55 dB (400 kHz)
Stereo Separation... cece cece cece tee ee eee e eee ee eset ener enon enes 35 dB (1 kHz)
Frequency ReESponse .........-ccceeeeeceeeenereneete en ern ens 30 Hz to 15 kHz (+1 dB}
Antenna INDUt. 0. cee ceeee ree eer ee eueeeeees 300 Q balanced. 75 2 unbalanced
AM Tuner Section
Frequency range, when 10 kHz step .... .. 530 kHz to 1,700 kHz
When 9 KHZ SCOP... cee ce cece cere ee ee reece nee te nee ee eee 531 kHz to 1,602 kHz
Sensitivity
VHF, LOOP ANTENNA... 2. cece cece eee e teeter teeter cere nena rene 300 nV/m
SeiGC HV, «css cccasr eens ante Hates hued comin rraedd lela serene ote 20 dB
Signal-to-Noise Ratio ..........cccceec eee e nec nec eee eeee eect eeeeeeeneennee eee eenes 50 dB
ANOATG cdi. cceantosuneeetedesedsseacdemesasideveadevacvasachecteeses AM Loop Antenna
Miscellaneous
Power Requirements
ULS., Camadian model.........cccc cece eeeee ee ee ee ereeen eens AC 120 Volts, 60 Hz
Other destination models
els ~AC 110 V, 120 V—127 V, 220 V, 240 V (switchable), 50/60 Hz
Power Consumption
U.S., Canadian models ...............0c cece eee ee ees 315 W (UL), 415 VA (CSA)
Other destination Models ...........0:.cscecseceseceeceeseeeeeeveneeeeeeees 495 W
DIMENSIONS. si csc. ceccsecaes satan ceeaced natelsnes 420 (W) X 120 (H) X 337 (D) mm
16-9/16 (W) X 4-3/4 (H) X 13-9/32 (D) in
Weight {without package) ............:6ecceeeeee nee tee cence eees 7.0 kg (15 Ib 7 02}
Furnished Parts
FM T-type Antenna .
AM Loop Antenna......
Operating Instructions
*Measured pursuant to the Federal Trade Commission's Trade Regulation rule
on Power Qutput Claims for Amplifier.
NOTE:
Specifications and design subject to possible modification without notice
due to improvements.
[SX-1300]
Amplifier Section
Continuous Average Power Output is 40 watts* per channel,
min., at 8 ohms from 20 Hertz to 20,000 Hertz with no more than
0.07% total harmonic distortion.
Continuous Power Output (both channel driven) *
20 Hz - 20 kHz, T.H.D, 0.07%, 8 Qo... eee eens sete ee een ee 40 W + 40 W
Dynamic power output (with EIA test signal}
AIS OPIAS 8c 25.25.05 2) Ss55 5 pels emeeatacaicss fe tonw A Ges aes sates meena 80 W/65 W
Total Harmonic Distortion*
WKEZ 40: WB Q aesesSevectce tes ete teatiale ash ob agese de ahaa sagan ae oeeee 0.01%
Input (Sensitivity/Impedance)
PHONG 46s oss ites wdealedd cn Peden Gas ba eee en eR HEL ds 2.5 mV/47 kQ
CD, VCR/LINE, TAPE 1/DAT, TAPE 2 ...........cccssceceeeeee rene 150 mV/22 kQ
Phono Overload Level (T.H.D. 0.01%, 1,000 Hz)
PHONO ota te snnd bela eshte ced elev tad nigh aak len wecn ay eens 130 mV
Output Level
TAPE REG il epccchcwciicy a dectianaeeia unio tear emenns a eens beeteeaete 150 mV
Frequency Response
PHONO (RIAA Equalization) ............ .. 30 Hz to 20,000 Hz +0.5 dB
CD, VCR/LINE, TAPE 1/DAT, TAPE 2.............55 10 Hz to 70,000 Hz 733 dB
Signai-to-Noise Ratio (IHF, short circuited, A network)
PHONO Fives ticesiucant avavshenitn cciopale scare ageuitins tasdentu cede sees tebe 72 dB/75 dB
CD, VCR/LINE, TAPE 1/DAT, TAPE 2..... : .. 97 dB/80 dB
Graphic Equalizer frequency band
epee eutuaseie sea eantaeEe sues 100 Hz, 330 Hz, 1 kHz, 3.3 kHz, 10 kHz, +8 dB
FM Tuner Section
FrEQUONCY'TANGE cosas isencdissccaseadad eds aegentdatagedecdeey 87.5 MHz to 108 MHz
Usable Sensitivity ......0......c ccc ccec nena renee eee 10.8 dBF, IHF (0.95 uV/75 Q)
50 dB Quieting Sensitivity
WONG oo icencseatinsiteden cantons catbceers shngealeagSaekeines 15.3 dB (1.6 nV/75 Q)
STEREO i ahesidevaxreacdscsadpriqs dasaew an pheusadesnsbavety’s 37.1 dBf (19.5 uV/75 Q)
Signal-to-Noise Ratio
MONO ii6 ta tviecs Soca dectantan cad ananaedestaund sieveeasen ddadaasskae 78 dB (at 85 dBf)
STEREO we veuce tenants Segeaewiay actus duns eubietoacncaba se adveds 75 4B (at 85 dBf)
Distortion
STEREO siicceci eins etuas tees necioas Sensei etna etaeetas Seekers 0.3% (1 kHz)
Alternate Channel Selectivity ............:c0seceeee . 55 dB (400 kHz)
Stereo Separation.........cccceeseeeeeec eee ee sees eeeeeenensaeaenen eens 35 dB (1 kHz)
Frequency ReESpONse ............ecce cece cece eee ee eee ee ne en ee 30 Hz to 15 kHz {+1 dB)
Antenna Input ............ccececeseeeeecee eae eenee 300 Q balanced, 75 2 unbalanced
AM Tuner Section
Frequency range, when 10 kHz step 530 kHr to 1,700 kHz
When: 9’ KH2:St6p sn. cece. cecescaie sacra srncetsevedvesssee 531 kHz to 1602 kHz
Sensitivity
IHF, Loop Antenna soscsio suet ereciss Meas annetecoatedsases esas onessvets 300 unV/m
Selectivity. ciscseccdeckategecss tact bcl ib ceaaas ea hce cepeeerd oases yest et anya shee toe saeton 20 dB
Signal-to-Noise Ratio. ...ceivg.ccccpanaveanesderdeder dads dbvaecavawwenen did eedenee 50 dB
AMON A sists Saazs tes seccahateds oe ceitend ciaceatgnte ndaunninsernencsta AM Loop Antenna
Miscellaneous
Power Requirements
U.S., Canadian Model ...........cccce cece cece ree ee er ee eee AC 120 Volts, 60 Hz
Other destination models
..~AC 110 V, 120 V—127 V, 220 V, 240 V (switchable), 50/60 Hz
Power Consumption
ULS., Canadian models .............ccseceeeeeeeeeeeee
Other destination modeis..
DIMENSIONS aikind tabisariceves tex cceseaaes ag uets 420 (W) X 120 (H) X 337 (D) mm
16-9/16 (W) x 4-3/4 (H) X 13-9/32 (D) in
Weight (without package) ............60 cece e cee ee ec eee eee e eens 6.2 ky (13 Ib 11 oz)
Furnished Parts
FM T-typerAntenina)s:..ciscch bead esau vain bade eh nate oad aaa aurea scales va gels 1
AM: LGOD Antenne: 2c cr2cwseat rin Usak onthe Von aiedtelaaldede edlundt ta Sy whaeee heated 1
Operating INStrUChONS 2iccic ge aden esas Lacie nhiecd a etek nd ene bet elena wee Deed Ci cy 1
*Measured pursuant to the Federal Trade Commission's Trade Rr gulation rule
on Power Output Claims tor Amplifier.
NOTE:
Specifications and design subject to possible modification wthout notice
due to improvements.
g
=> Cr—tc fale 7a <8} a

> Gi—ic [eles (ula
3. PANEL FACILITIES
The illustration shows model SX-2300.
WM PIONEER sxevo wecevin SX-2B3B00
SX-1300 only
@) POWER switch
When this switch is pressed, power is supplied to the unit.
Press the switch again to turn power off.
(2) SPEAKERS switches (MLOFF, mON)
These are used to select the speaker through which you wish
to listen.
A: When the speakers connected to A terminals are in use.
B:
When
the
speakers
connected
to
B
terminals
are
in
use.
© Tur both A and B speakers to OFF position when only the
HEADPHONES are inuse.
NOTE: (SX-1300 only)
No sound will be heard through the speakers when both A
and B switches are depressed if only one set of speakers has
been connected to either A or B SPEAKERS terminals.
@) SURROUND selector switch (SX-2300 only)
By pressing the A and B SPEAKERS switches, then pressing
this switch ON, you can obtain surround reproduction. If you
Press this switch OFF again, normal reproduction from both
speakers A and B will be obtained.
(@) PHONES jack
Connect the plug on your headphones to this jack. To listen
to a program through the headphones, set both SPEAKERS
A and B switches to the OFF position.
©)
SIMULATED
STEREO
switch
(SX-2300
only}
This
tums
monaural
signals
into
simulated
stereo
sound.
Use
this
when
you
wish
to
experience
the
sense
of
stereo
pres-
ence
with
AM
broadcasts,
VCR
or
other
monaural
signal
sources.
NOTE:
This function can also be used with stereo sources, but it will
result in a different sound from the normal stereo sound.
© MEMORY SCAN switch
Press this switch to scan the stations in the memory.
9
tt. BEES TS,
: '88:88 a
@) FM MODE AUTO/MONO selector switch
Use to select the auto stereo mode or monaural mode when
listening to FM broadcasts. The monaural mode has been
selected when the FM MONDO indicator is lighted.
Auto stereo mode:
Normally leave in this mode for reception. When a stereo FM
broadcast is received, it will be automatically reproduced in
stereo sound.
Monaural mode:
When receiving distant stations or stations with weak broad-
Cast signals, the input signal may be weak, thus resulting in
increased noise during FM stereo broadcasts. In this event,
setting the receiver to the monaural mode will reduce the
noise. In this case, however, FM stereo broadcasts will be
reproduced in monaural sound.
NOTE:
This switch has no effect on reception of AM broadcasts.
TUNING AUTO/MANUAL switch
Works during FM reception.
Use
this
switch
to
select
either
the
AUTO
mode
or
the
MANUAL
mode.
When
the
‘’AUTO”’
indicator
is
lit,
the
receiver
is
in
the
AUTO
mode.
(@) MEMORY switch
This is used to memorize stations. When the switch is
pressed, the frequency indicator will flash. To memoize the
frequency of any station, press the STATION CALLs witch
while the frequency indicator is flashing.
STATION CALL switches
These switches are used to preset and recall desiredb road-
casting stations.

@) TUNING switches (DOWN, UP)
UP: The FM or AM band is scanned in the direction of increas-
ing frequency.
DOWN: The opposite operation to that of the UP switch
takes place.
(2 Tape monitor switch
{TAPE 2] — Press when listening to tape playback with a
tapedeck.
(3 FUNCTION switches
Use to select playback source.
(TAPE 1/DAT] — Press when listening to tape playback with
a cassette tape deck or digital audio tape deck.
[VCR/LINE] — Press when listening to programs from a com-
ponent connected to the VCR/LINE terminals.
[CD] — Press when listening to compact disc playback with
aCD player.
[TUNER] — Press when listening to AM or FM broadcasts
with a tuner.
[PHONO] — Press when listening to record playback on a
turntable.
@ VOLUME control
Use to adjust volume level.
@ BALANCE control
Should normally be left in the center position. Adjust balance
if the sound is louder from one of the speakers. If the right
side is louder, turn toward the LEFT position and if the left
side is louder, turn toward the RIGHT position.
GRAPHIC EQUALIZER controls
The equalizer is divided into five frequency ranges (100 Hz,
330 Hz, 1 kHz, 3.3 kHz, 10 kHz) to tailor music to the in-
dividual taste of the listener.
@) Band Selector switches
These switches are used to select either AM or FM reception.
AM: Push this switch for AM reception.
FM: Push this switch for FM reception.
OPERATION DISPLAY panel
{a) Indicates the function selected (f) FM STEREO indicator
by the function switches. =
(g) AUTO tuning indicator
(b) Indicates frequency or channel
(STATION CALL number).
(c) SURROUND indicator
(h) FM MONO indicator
(i) TUNED indicator
(d) SIMULATED STEREO indicator
(e) TAPE monitor indicates
4. EXPLODED VIEWS AND PARTS LIST
NOTES:
Parts without part number cannot be supplied.
The {\ mark found on some component parts indicates the importance of the safety
factor of the part. Therefore, when replacing, be sure to use parts of identical designa-
tion.
For your parts Stock Control, the fast moving items are indicated with the marks * *
and *.
* * GENERALLY MOVES FASTER THAN
This classification shall be adjusted by each distributor because it depends on model
number, temperature, humidity, etc.
Parts marked by “®” are not always kept in stock. Their delivery time may be longer
than usual or they may be unavailable.
Parts List
(a)
eae
Pouaron
or
Case"
i
ee
(CEaBES)
—e)
ao
DE
eg
PS.
ES
wens
Te
TUNES: (i)
31 BBT3OPO80FZK
32 BBZ26PO80FMC
33 BPZ30PO80FZK
34 NK7OFUC
35 VMZ30PO60FMC
Screw
Screw
Screw
Nut
Screw
101
102
103
104
105
106
107
108
109
Parts No.
AWZ1492
VMZ26P040FZK
AKX-507
ASH-004
AKR-038
AEK-122
Mark No. Parts No. Description
1 AWZ1491 Complex assembly
Aww 2 2SA1264N a3,04
Ak*k 3 2SC3181N Q1,02
A 4 ATS1116 Power Transformer T1
A 5 AKP1015 AC Socket 1P
Akwe 6 AEK—100 Fuse (FU1 4A)
A 7 AEX—008 Lithium battery
8 AEC—784 Leg assembly
9 AAB1010 Rotary Knob (BALANCE)
10 AAB1058 Rotary Knob (VOLUME)
11 AAD1152 Knob(POWER)
12 AAD1162 Knob(SURROUND)
13. AAD1295 Knob (SPEAKERS)
14 AAD1296 Knob Array (TAPE2,
TAPE1/DAT,VCR/LINE,CD,TU-
NER,PHONO)
15 AAK1400 FL Filter
16 AAK1401 Sheet Panel
17 AAM-—030 Friction Plate
18 AMB1283 Panel base
19 ANB1166 Front Panel
20 AZN1466 Bonnet case
21 ABH1034 Coil spring
22 AEP-—313 Mica sheet
23 ABA-—297 Screw
24 ABA-298 Screw(3 x 8)
25 ABA1009 Screw(3 x 6)
26 ABA1011 Screw(3 x 6)
27 ABA1021 Screw(3 X 10)
28 ABA1052 Screw(3 x 12)
29 ABN-—O65 Nut
A 30 ADG1031 AC Power cord
Description
Control assembly
Screw
$2 Voltage selector switch
S3 Slide switch
Fuse Holder
Fuse (FU2 2A)
SP switch assembly
SP Terminal assembly
Power SW assembly
Terminal (GND)
Chassis
Rear Panel
Bottom Plate
Heat sink Holder
Heat sink

SD MODEL ONLY
L—--—
SD MODEL ONLY
2300 ONLY
Sx-
SX—2300 ONLY
SX—2300 ONLY

> Gr—tc [a] a 78 eS | ow | y) 3 A 5 6
5. SCHEMATIC DIAGRAM
ry 2 SS Ee oy ee 2 EEE 2 eee ie nd , 401 1c402 . GRAPHIC EQUA
| . Q102 : MIXER > % COMPLEX Ass'y AWZ1491 % CONTROL Ass'y AWZ1492 weed
i Q101: RF AMP (awz1497 ) ( Awzlo66)
eno O° yos__us
16403 (1/2):
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ATS1118 components.
AWZ1496
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| ADGIONS |
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12
1, RESISTORS:
Indicated in 2, %W, /eW,+5% tolerance unless otherwise noted k :kQ,
M : MQ, (F) : £1%, (G) : £2%, (K) :+10% (M); £20% tolerance
2. CAPACITORS:
Indicated in capacity (uF)/voltage (V) unless otherwise noted p : pF
Indication without voltage is 50V except electrolytic capacitor.
3. VOLTAGE, CURRENT:
S_] : OC voltage (V) at no input signal
Value in( —_) is OC voltage at rated power.
<5 mA: DC current at no input signal
4. OTHERS:
mp : Signal route.
@ : Adjusting point.
The mark found on some component parts indicates the im-
portance of the safety factor of the part. Therefore, when replacing,
be sure to use parts of identical designation.
> marked capacitors and resistors have parts numbers.
This is the basic schematic diagram, but the actual circuit may vary
due to improvements in design.
5, SWITCHES
S701: TUNING DOWN
$702: TUNING UP
S703 FM
S704: AM
S705: 6/18
S706: 5/17
S707: 4/16
S708: 3/15
S709: 2/14
S710: 1/13
S711::12/24
$712: 11/23
$713: 10/22
S$714:9/21
$715: 8/20
s716:7/19
$717:SS (SD MODEL ONLY)
S718:MEMORY
S$719:MEMORY SCAN
$720: FM AUTO/ MONO
$721: TUNING AUTO/MANU
S722:TAPE 2
S723:TAPE1
S724:VCR
$725:CD
$726 :TUNER
$727 :PHONO
st : POWER
S851-1 : SP—A ON-OFF
$ 851-2 : SP—B ON-OFF
$852 :SURROUND ON-OFF (SX-—23000NLY)
$854 : SURROUND LEVEL L/M/H
s3 : (SD MODEL ONLY)
Note : This general circuit diagram is based on SX-
—2300/KUC.
© Components marked with * for SX—2300 differ
from those for SX— 1300. Figures enclosedin({ )
are for SX— 1300.
¢ Figures enclosed in __] indicate DC voltage
values when SX— 1300 has received no signal.
¢ Figures enclosed in ( ) indicate DC voltage
values when SX— 1300 yields rated output.
* Circuits enclosed in’ ~"} are necessary for the
specified models.
¢ Assembly Nos. in red are for SX— 1300.
12

1
2
3
4
S
6
6.
P.C.
BOARDS
CONNECTION
DIAGRAM
NOTE
1. This P.C.B connection diagram is viewed from the parts mounted side.
}
2.
The
parts
which
have
been
mounted
on
the
board
can
be
replaced
with
those
shown
with the corresponding wiring symbols listed in the following Table.
Part Name
A
or
Transistor
€
|
Y
|
Y
|
Radiator
type
ae
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0203
Diode
Ds
eal
per
|
Capacitor
(Polarity)
Capacitor
{Non-polarity)
Power SW
| | assembly
SP switch assembly
3.
The
capactor
terminal
marked
with
©(double
circles)
shows
negatine
termianl,
ES
4.
The
diode
terminal
marked
with
©
(double
circles)
shows
cathode
side.
|
5.
The
transistor
terminal
to
which
E
is
affixed
shows
the
emitter.
Q701
x701
9704
Q706
705
AS
4
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;
708
1C701
1¢402
1c401

=> Gr—tc {alee 48 io
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8 Q
10
4
1c601
Q601
Q602
Q604
Q20i
1c301
Q102
Q101
Q605
Q516
=
1c802
Q502
1cso1
Q202
1¢201
Q105
Q104
Q506
Q510
Q504
Q508
Q512
Q515
Q501
Q505
Q503
Q507
1c
102
Q110
1c101
Q107
Q106
Q523
Q524
Q509
Q511
Q517
Q518
Q108
1C103
Q109
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eee
ee
Se
Se
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Se
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nB agrinds only.
Power SW POWER TRANSFORMER
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assembly
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POWER CORD
AC 120V
60 Hz
Complex assembly (AWZ 1491)
AC OUTLET
UNSWITCHED
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