Pioneer SA-420 User manual

o
o(D
rrloNeerl'
i".lil ORDERNO.
ART-
646-O
STEREO
AMPLIFIER
a
a
o
CONTENTS
SPECIFICATIONS
FRONTPANEL
FACILITIES
BLOCK
DIAGRAM
PARTSLOCATION
EXPLODED
VIEW
P.C.
BOARDSCONNECTION
DIAGRAM.
. . . .
SCHEMATICDIAGRAM
8. ELECTRICAL PARTS
LIST
. ....... 13
9. PACKING 14
10.ADJUSTMENT 15
nÉclace t6
AJUSTE 17
ADDITIONAL
SERVICEMANUALFORYP,
AND S TYPES 19
MODEL
SA-420
COMES
IN FIVE
VERSIONS
DISTINGUISHED
AS FOLLOWS:
Thisservice
manual
is applicable
to the KU type (pp. 1 - 17!
, YP andStypes (pp. 19 -211. When
repairing
the HE,
HBtypes,
please
seetheadditional
servicemanual
(ART-647).
Forthecircuit
description,
please
referto the supplement
of modef
SA-720
servicemanual
(ART-76S1.
Cemanuel
d'instruction
se
refère
aumode
derégtage,
enfrançais.
Este
manualde
servicio
trata
delmétodode
ajusteescrito
enespafiol.
1.
2.
3.
4.
5.
6.
7.
2
3
4
5
6
I
11
Type Voltage Remarks
KU 12OVonly U.S.A.
model
s110V,120V,22OV
and
2zl0V
(Switchabtel Generalexport model
YP 24OV only Australia model
HE 22OVand2r(lv (Snitchablel Europe model
HB 22OY and 240V (Switchablel United Kingdom model
o
o
oPIONEEFf ELECTFIEDNIC CCIFIPCIFIATICIN 4-1, 'v,esu.o 't-chome, Mesu.o-ku, Tokyo 1æ. J6pên
1J.3. FICINEEFI ELECTFIChfICB OCIFIPCIFIATICIÀ| 85 Oxfond Dniwe, Moonâchie. New Jensey O7O74, USA
FICINEEFI E|-ECTFICINIC (EIJCIC'PE! N.V. Luichagen-Haven g, 2O3O AnÈwe.p, E}elgium
PlCrf\fEÉEl ELECTFICINICÉi AIJEITEIALIA PTY. LTE. 178-184 Elounda.v F|oad. Elîaeside. Vctonia 3195. AusÈna,je
YL oAPR.1981 Printedin lapan

I
TAPE
/
AOAPTOR
II
o
38.5d8
(ot
llHr)
REC
+82-:
- 82+ AUX/
vroEo
TAPE
/
ADAPTOR
LOUONESS
TUNER
@
^ux/ r^
vtoÉo \Y/
_*_+È_+ + 82
T+
mm -82
+
Bl
-81 LRLR
A-SPEAKERS-8 LR
PHONES
3. BLOCK DIAGRAM
35.5
dB
- (ot
IIH:) -
tc (NJM4558DX)
R cH (SAME AS LcHl
PHONO
TUNER
AUX/VIDEO
EQUALIZER
AMP POWER
AMP
Top View
[** Fuse
(2.5A)
AEK-102
[* Potver
transformer
ATT.793
A** Push
switch
(POWER)
ASG-521
Push
switch (SPEAKERS)
ASG-266
Hr.
-*lr
OO' c
aa
t
Electrolytic
capacitor
(4700/35V1
ACH-217
AF assembly
GWK-174
** Push
svitch
(TAPE/ADAPTOR,
LOUDNESSI
ASG-285
** Rotaryslideswitch
(FUNCTIONI
ASE-I10 C
e
a

o
o2,
FRONTPANELFACILITIES
o POWER
SWITCH
Depressthis switch to turn on or off power. When this switch is
depressed,
power is supplied. When this switch is released,
power
isturned OFF.
@ pHorues
JACK
Plug headphones
into rhis jack for private listening.
Set
the SPEAKERSselection
switchto OFF.
@ SPEATERS
SELECTOR
These two switches are used to switch the output signals
of the
stereo amplifier's speaker terminals. The switch on the left
switches the output signals on and off. When listening to the
sound through the speakers,setthis switch to the released
position
ON ( r l. No sound will be heard through the speakerswhen this
switch isset to the depressed position OFF ( ^ ).
The switch on the right selects
the A or B setsof speakertermi-
nals. Set to the released
position A { r } when listening to the
sound from the speaker
systemsconnected to the A speakertermi-
nals, and 10 the depressed
position B ( ^ ) when listening from
the speaker systems connected to the I speaker terminals.
@ EASS
ANDTREBLE
CONTROLS
Use these
controls to adjust the tone. The right one controls treble
and the left one controls bass.
FLAT is the neutral position. Turning knob clockwise acctntuates
the bass
or treble. and turning knob counter{lockwise attenuates
the bass
or treble.
€) BALANCECONTROL
This control should normally be set to center position. When the
output from the left and right speakers
or headphonesis not the
same,adiust by turning the control clockwise or counterclockwise.
@ rurucrtoN
sELEcroR
Use
this
salector
to select the
program
source.
Whenset,
the
func'
tion indicator
corresponding
to the position
of the
functionselec-
tor
willlight
up.
o The ( ^ J and ( t- J for the pushbutton switches on the panel indicate the depressed
and released position, respectively,
@ TAPE/ADAPTORSWITCH
Depress
this switch to ON when using a tape deck or a graphic
equalizer (or any equipmentl connected to the TAPE/AOAPTOR
terminal.
G) LOUDNESSSWTTCH
Depress
this switch to ON when listeningat low volume. Basswill
be emphasized to compensate for human listening characteristi6
and provide natural listeningcurve.
@ voluttrEcoNTRoL
Turn this control to adjust the output levelto the speakersand the
headphones.Output is minimum at 0 and increasesasthe control
isturned clockwise.
o
o
o
lDmEi

1.
SPECTFtCATIONS
Amplifier
Section
Continuous
power
outputof
2lwatts.
nel,
min.,at8ohmsfrom30Hertz
Hertz
with
nomore
than
0.I%
tolal
distortion.
per
chan-
to20,000
harmon
ic
TotalHarmonic Distortion
(30 Hertzto 20,000Hertz,
I ohms,fromAUX)
10 watts
per
channel
power
output
..... Nomorethan0.05%
Intermodulation
Distortion(50Hertz:7,O0O
Hertz
= 4 : 1
8 ohms,
fromAUX)
continuous
rated
power
output . . . No more
than0.2%
10watts
per
channel
power
output
..... Nomorethan0.OS%
Damping
Factorl2O
Hertz
to 20,000
Hertz,
g ohms)
. . 30
Input
(Sensitivity/l
mpedancel
PHONO .2.5mV/5Okilohms
TUNER 150mV/50kitohms
AUX . 150mV/50
kilohms
TAPEPLAY/ADAPTOR . . 150mV/50kilohms
Phono
Overload
Level
(T.H.D.
0.1%,
1,000H2)
PHONO ....120mV
Output
(Level)
TAPEREC/ADAPTOR ....150mV
Speaker A, B,
OFF
Frequency
Response
PHONO
(R
IAA Equalization)
. . 30Hz
to 15,000H210.5d8
TUNER,
AUX,TAPEPLAY/ADAPTOR
10Hz
to 60,000Hzt3dB
ToneControl
BASS. ... t9.5dB(100H2)
TREBLE È9.5d8
(10,000H2)
LoudnessContour(Volume
control
setat -40d8 position)
. . . . . +8dB
(100H2),
+OdB
(10,000H2)
Hum
andNoise
(lHF,
short-circuited,
A network)
PHONO .....72d8
TUNER,
AUX,TAPEPLAY/ADAPTOR .97d8
Miscellaneous
Power
Requirements AC 120V,60H2
Power
Consumption 60W
(UL)
Dimensions 420(Wl
x 94(H)x 267(D)mm
16-9/16(W)
x3-11116(H)x 10-112(D)
in
Weight
(without
package) . . . .4.6
kS
(10
lb2 oz)
NOTE:
Specifications and the design subject to posible modifications
without notice due to improvements.
t Measured purcuant to the Federa! Trade Commission's Trade
Regulation rule on Power Output Claims for Amplifierc.
o
a
o

a
oNOTES:
c Parts
without part number cannot besupplied.
c The A marh found on some component pafts indicates the importance of the
safety factor of the part. Therefore, when replacing, be sure to use
)a'1o of identical
designation.
o For your PartsStoch Controt, the fast moving itemsare indicated with the marhs
** and *-
** GENERALLYMOVESFAS?ER THAN *.
This classification shallbe adjusted by each distributor because
it dependson model
number, temperature, humid ity, etc.
Parts
Listof Exploded
View
Mark No. Part No. Description Mark No. Part No. Description
a**
A*
A**
*t
1.
2.
3.
4.
5.
FBT4OPOSOFZK
ANE.289
AEK.102
Screw 4x8
Top cover
Fuse
(2.5A1
Power transformer
Foot assembly
Screw 3x12
Push
switch (POWER)
Screw 4x8
Knob (POWERI
Screw 3xG
Screw3x6
Nut M9
Screw3x8
Front panelæsembly
Knob (BASS,
TREBLE,
BALANCE}
Knob (VOLUME,
FUNCTION}
Lamp (Wireterm. 8V/SOmAl
AC socket
(AC OUTLETS)
Screw 3x8
21. GWK-I74
22. AAD-265 AF assembly
Knob (SPEAKERS.
LOUDNESS,
TAPE/
ATT-793
AEC-672
ABA.246
ASG-521
VXZ4OPOSOFMC
AAD-2EI
11. PMZ30PO60FMC
12. VCZ30P060FMC
13. ABN-024
14. VBZ30P080FMC
15. ANMOo8
16. AAB-250
17. AAB-251
18. AEL-075
19. AKP-041
20. BBT3OPOSOFZK
23.
24.
25.
ADAPTOR)
MTZ3OPIOOFZK Screw3xl0
VCT30P060FZK Screw 3x6
AEC-327 Strain retief
6.
7.
L
9.
10.
l\ 26. ADG-052
27. ABA-176
2A. wA35F100N080
101
.
102.
103.
104.
105.
106.
107.
t08.
109.
110.
111.
112.
AC power cord
Screw
Washer
Fuse
assembly
Bottom plate
Frame
Flexible
joint
Panel
stay
Lamp holder
Mountingplate
Rearpanel
Right frame
Terminal
{GND)
P.C.Eoard holder
Headphones
jackassembly
o
o
o

17l8
ACI
20v
60Hz
ExtcnalAppearance
ofTransistorc
andlGs
Type
Lot
2S4798
25A850
2SC1735
25B595P
2SD525P
HEADPHONES
JACK Ass'y
55 POWER
a
a

AF Ass'y(GWK-
174)

3
t-
lz
CONNECTION
6. P.C. 1
BOARDS DIAG
A
B

ffi-o sr
o
,\^ilA OlOOldX3 '9

I
z9ùcov
pros
.reMod
cv v
l?ûdrv
(sl3-llno cV)rarsos
cvV
olt-3sv
(NOrrcNnll
r.l]l!^ns
epllsÂretog aa
9Zt-tcv
(3uûnlo^l
.tolsrser
elqeue^
+
982-OSV
(ss3Nono'l
,UOIdVOV/3dVI}
qcllMsqsnd ++
tz0-rcv
(3CNV'lvsl rolsrser
etqeue^ +
t9z-8vv
qou)
800-t
lNV
^lqurecse
leued
luo.U
I
a
I
(3-18:tul_lrotsrsâr elqeileA I
^el^ leued
reeH
0e0-N)V
(SlNOHd) {cel euoqd
129-9SV
(U3MOdlqcrlMs
qsnd ++\p
992-9SV
)V3dSl r.lrll't^s
qsnd ++
LZJ-LCV
(ssvgl rorsrser
etqerreA
+
pa^ouau leued ql!Â^
Âe!^ luoJj
682-3NV
re^oc
dol
^e!^ FuBd
luorJ
tapou
uospuadap
1,asnocaq
rotnq,r'lp
,"r" ;;t3;f::i;i:: ,;;:;:i::r#il,;r:;îî:
'+ NVHJ AgJSVg sgAow ^I.MgNgc ++
'+ PUD
++
sqrDu aql qlrm papclput arDsraal, fulaour lsll aql ,IorluoJ qrols slrod .tnoi{,
tog
'uotlDuE
sap
pclluapt to slr,d asn ot atns aq ,Eutcoldat uaqm ,aroJaraqtr .1.todat11
lo 'o\co1 t(,|alos
aql Jo acuDvod,tt aq1 saloctpur s1,od Tuauodutoc autos uo puno! qtou \l itt,L
LZJ-LJV
)
NO|IVCO] SrUVd'?

o
o
-
-
8. ELECTRICAL
PARTS LIST
NOTES:
o ltrlhen
ordering resisfors, first conuert resistance
ualues
into code form asshown in
the following examples.
Ex. 1 when there ore 2 effectiue digits (any digit apart from 0), such as s6o ohm
and 47h ohm (tolerance isshown by J = SVo,
and K = I|Vo).
560a 56 x 10t 561 . . RDY4PS
trEmJ
47kn 47 x 103 473 . . RD%PS @A@J
Ex. 2 When there are 3 effectiue digits (such as in high precision metal film resis-
tors).
5.62hn 562x lOO 5621.. .RNlrSB
EEIED r
c The /g marh 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
designation.
o For your PartsStock Control, the fast moving items are indicated with the marhs
** and *.
** GENERALLY MOVES FASTER THAN *.
This classification shall be adjusted by each distributor becauseit depends on model
number , temperature, humidity, etc.
o.5a
IO
Miscellaneous
Parts
Mark Patt No.
0R5.. .... RN2H
@BEx
010.. ..... RstP@Ul@x
Symbol & Dæcription Part No. Symbol& Dccrirtion
a*
A**
a**
A**
A
,A
ATT.793
AEK.102
AEL.O75
ASG-521
AKP.O41
ADG.O52
GWK.174
Tl Power
transformer A
FUl Fuse
(2.5A) A
PLl-PL3 Lamp
(Wire
ærm.8V/SOmA)
Sl Push s,witch
(POWER)
AC
socket
(AC OUTLETSI
ACpower
cord
AF assembly
ccDSL
150K
5(x)
ccDSL
151K500
ccDsL270J
50
ccDsL
680J
50
ccDsL
101J
50
CCDSL
221J
æ
c25,C26
c27-C30
c41,C42
cl9,C20
cl7,
C18
c3,c4
AFAssembly
(GWK-174)
CAPACITORS
Mark Part No. Symbol & Dercription
CKDYF
4732æ Cl3-C16,C45,
C46,C59
CKDYF1032
50 C60,
C61
RESISTORS
NOTE: When ordering reeiators, conuert the resistance ualue
into code form, and,then rewrtte the part no. asbefore.
Mark Part No. Symbol& D€rcriptbn
CEANL
2R2M
50
ACH-217
ACG-019
CEANLR22M
50
CEANL
OlOM50
CEA
O1OMsOL
CEA
22OM
25L
CEA4TOM
1OL
CEA
1O1M25L
CEA1O1MsOL
CEA
221M
lOL
CEA
47OM25L
CEA221M25L
CEA221M
35L
coMA 122K50
coMA 562K50
coMA 124K
50
coMA 242J50
coMA 822J50
coMA 303J50
c1,c2
C53,C54 Electrolyric
(470Ol35V)
C55 Ceramic
(0.01/AC1sOVl
u7,c48
c31,C32
cl1,C12
c21.C22,C50
c5,
c6
c57
c58
u3,c44
c52
c23,C24,C56
c49
c39,C40
c37,
C38
c3rif,c34
c7,c8
c9,cl0
c35,C36
* ACT-021
* ACT-î26
* ACT-127
* ACT-127
A AcNoTo
RDl/4PMtrtrtrJ
RS2PL271J
RDl/2PSEOOJ
A Roll4PuFtrr,trJ
SEMICONDUCTORS
Mark Pan No,
VRI Variable
(BALANCE)
VR2 Variable
(VOLUMEI
VR3 Variable
(BASSI
VR4 Variable
(TREBLEI
R71
.R72 Wirewound 1O.22+O.22l2Wl
R1-F18, R23-R68.
R80-R82,
R89
R19
R20,
R75-R78, R83,R84, R86,R87,
R94-R96
R6[r,R70,
R73,R74,R79,
R88,
F90-
Symbol& Dccription
-l
o
o
o
**
**
**
**
**
NJM4558DX
2SA798
2SC1
775A
2SC945A
2SC1735-D*
(2SC1
735-E*)
2SA85GD*
(2SA85O-Er)
o1
02.
03
04,05
06,07
08,09
o10,
o11
*hfe of O8-O1 I should ha\re
rhe samevalue.

n/!ark Part No. Svmbol
& Dæcription
012,
O13
o14,
015
o16
t)l, D2
D4
D3.
D5
D6-D9
Symbol & DercriPtion
9. PACKING
ff
[*
*
*
A*
*hfe of 012-O15 should have
the same value'
2SD525P-O)*
(2SD525P-Y*)
25B595P-O'
(2S8595P-Y"l
2SC1815-GR
10E2
(srB01-o2l
MZ-197
(wz-1971
MZ-157
lwz-157l.
GP.2OD
stvtTcHES
Mark Part No.
ASE-110
ASG-285
ASG-266
s2
s3
Rotary
slideswitch
(FUNCTION}
Push
witch (TAPE/
ADAPTOB.
LOUDNESSI
Pushswitch
(SPEAKERS)
OTHERS
Mark Part No. Svmbol & DeccriPtion
VBZ3OPO8OFMC Screw
3x8
AKB.O77
AKB.O78
AKBO79
AKE.O47
AEC-078
AKH-q)5
ABA.257
l'leadphones
Jack
Assembly
Terminal
(PHONES)
Terminal
(TAPE/ADAPTOR
)
Terminal
(lNPUT}
Terminal
(SPEAKERS)
lnsulator
wafer
lnsulator
spacer
Screw
2.5x16
Symbol& Dercription
Mark No.
1.
2.
3.
Part No. Description
AHA.29O
ARB4O5
AHD-gO1
Side pad
Operatinginstructions
(Englishl
Packing
case
Mark Part No.
AKNO3O
RD1/2PS331J
Fuse
Asembly
Mark PartNo.
Phones
jack (PHONESI
R86, R87
$mbol & DeccriPtion
ACG-017 ClOO Ceramic
(0.01
/AC125V)
a
Ia

l1
LCH
IAPE /
ADAPTOR
llSOnVl
REC
rilrffi9I
AUX/VIDEO
llSOpVl
TUNER
ll3Onvl
PHONO
tzfiïl
QI NJM4ssEDX
EOUALIZERAIVIP
3
2
7. SCHEMATIC DIAGRAM
o
ol*t..
-, o45 2l
Q6,7
o8,9
olorfi
or2.r3
Qt4,t5
POWER
VR2: VOUJME
ac1 -la6
\R2{
æl o22!,sn
RCH
PHONO
TUNER
AUX/VIOEO
REC
ÎAPE/
AOAPTOR
o
o
oThis is the basic $hematic diagram, but the ætual cir@it mây vary
due to improrr€mentsin d6ign.
or-
PL2
TUI{ER
st
-l
Sr: FUt{CÎtOil
asE-ilo
TUNER
/\
a(rxlvrDEo Pfot{o
s2: 1^PElLq,Da{ESS
ÀsG - 28!'
o3,5
t|u.-137
A
croo
o.or
/^c|Ê5
I
iA
I
t
AC POWERCORI'
AttG-o32
FUSE Ass'y
: Furasa I
AEK- IO? TI ATT-?93
f ---- ---r
ua{swrlct{ED
200W
MAX. swrlclrÊo
toowMo(.
PL3
PHOf{O
eY 5OmÂ
AEL-O75 8v SODA tv
AEL-O73 AE

6
4
V
a
o
v
NOTE:
The indicated semiconductors are rcpresentatiue ones
only. Other alternatiue semiconductor€ may be usedand
are listed in the parts list.
-t
AF Asdy GWK
-t74
53: SPEAKERS
ÂsG-266
s3-r s3-3 HEADPHONES
El
JACK Asdy
lizSi%irl
LCH 1I
sP-8
RCHJ
-
R39 R4l
6lr oor
LcH -.1
I sP-A
RCH
J
R40 R42
6.Ar lOOt
-o
-
la
tr
| 1.RESTSTORS:
I Indicated in n, 7.W, 15% tol€rance unlæ otheilis nored k : kQ,
I M :Ma, (F) : r1%,
(G)
: t2%,
{K) : !10?6,(M):12O7" tolerance
I
I
z.ceeactrons,
I Indicatedin capacity(sF)/voltage(V) unls othemis noted
p : pF
I tndication without voltage is sOV except elætrolytic capacitor.
I
J3. VOLTAGE,CURRENT:
l----l :
Signalvoltage
at 20 W + 20 W 8$ oulwt (lkHz)
U :DCvoltage
(V) at no input signal
Value in ( ) is DCvoltageat rated power.
.fr mA : DCcurrent at no input signal
4.OTHERS:
A :Adiustinq point.
The f1 mark fænd on some æmpon€nt pans indicat6 the im'
ponarc-ô of the sfay fâctor of the pan. Thecforc, when .@læing,
be$rc to uæ partsol identical dBignation.
SWITCHES:
SI: FUNCTION AUXIVIOEO-TUNER-PHONO
S2-I.2 : TAPE/ ADAPTOR
S2-3,4 : LOUONESS
53-1,2 : SPEAKERS
53-3,4 : SPEAKERS
55; POWER
ON-oEE
ON
-OFF
ON
- OFF
A-B
ON
-OFF a
a
a
R75 |
rol
(/21tt Lc45
To.o47
vR3: AASS
vR4-f ACt -tZ?
loox vR4: TRBLÊ
The underlined indicotes lhê 3wilch 9o3ilion.

o
o1O.
ADJUSTMENT
ldle Current Adjustment
1.Tum the VOLUME control down to minimum
level, turn the power on, and wait about 10
minutes.
2. Connect a DC voltmeter to the TP terminals
(R ch; TP1Oand TP2 @ , L ch; TP4 O and
TP3 G) ) of the AF assembly.
3. Check that ttre voltage between TP1 and TP2
(R ch) lies within the DC 2mV-110mV range.
Then make a similar check for the L ch (be-
tween TP3 and TP4). If the voltage is lessthan
2mV, cut jumper A (L ch), and jumper B
(R ch). If the voltageexceeds
110mV, checkfor
circuit failure.
o Bemovethetop cover
AF Assembly
Æ
Jumper
A+-,
Jumper
o
o
o
t',-----e P(Êit i
-{^È-/:--- ---J

10.
AJUSTE
ItAiuste dela corrientedevatiada
1.Poner el control de volumen (VOLUME) en su
posiciôn de nivel mfnimo, conectar la alimenta-
ciôn y espemrunos 10 minutos.
2. Conectar un voltfmetro de CC a los terminales
similar para el canal Izq. (entre TPB y TP4)'
Si la tensiôn es menor de 2 mV, cortar la cone'
xiôn provisional A (canal lzq.), y conectal
provisionalmente B (canal Der.). Si la tensiôn
àxcede de 110 mV, comprobar que no haya
ninguna averfaen el circuito.
Extraer
lataPa
Conjunto
A.F.
Conexiôn
Provisional
A
o
o
o
'r----e e-P @______-/

10.
REGLAGE
Réglaç du courant déwatté
1.Tourner la commande de volume zur la posi-
tion minimum, mettre I'appareil soustension et
attendre environ 10 minutes.
2. Connecter un voltmètre CC aux bomes TP (voie
droite: TPl e et TP2@,voie gauche:
TP4Q et
TP3 @ )d'ensembleAF.
3. Vérifier que Ia tension entre TPl et TP2 (voie
droite) soit entre 2 mV et 110 mV CC.Vérifier
de la même manière la voie gauche (entre TpB
et TP4). Couper I'interconnexion A (voie
gauche)
et I'interconnexion B (voie droite) si la
tension est inférieurea 2 mV. Lorsquela tension
est supérieure a 110 mV, s'assurerde I'ab-
sence
depanne decircuit.
Enleverle
couvercle
I
I
Ensemble
AF
l
TP2 .{.
t l*(
nterconnex
Interconnexion
A

(D
rrloNeefl'
STEREO
AMPLIFIER
This additionalservice manual
is applicableto the YP type (Australia
model),
S tyæ (General
export
model).Thebasic
performance
of the YPandStypesisthe sameas
the KU type (U.S.A. model),
please
refer
to theKUtypeservicemanual
(pp.1- 171with
theexception
of this supplements.
SPECIFICATIONS
The specifications
for YP and S types arethe sameasthe KU type exceptfor
followingsections:
Miscellaneous
PowerRequirements
YPtype .... AC24OV,5O/6OHZ
Stype ..... AC11O/12O/22O/240V(Switchable),50/60H2
PowerConsumption
YPtype 150W
Stype ......60W
o
o
o

CONTRAST
OF MISCELLANEOUS
PARTS
. Partswithout part number cannot be supplied.
c The $ marh 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
designation.
o For your Parts Stoch Control, the fast moving items are indicated with the marhs
** and *.
** GENERALLYMOVES FASTERTHAN *.
This classification shcll be adjusted by each distributor becauseit depends on model
number, temperature, humidity, etc.
P.C.
BOARDASSEMBLY
Mark Symbol & Dæription Part No. Remark3
KU typ€ YP type S type
AF assembly GWK.174 GWK-176 GWK.177
ELECTRICAL
PARTS
Mark Symbol & Description Part No. Remarks
KU type YP type S typo
A*
A*
A*
A**
A**
A**
A**
A,
Â
T1
T1
T1
FUl
FU1
s1
S2
c1
Power
transformer
(
1
2OV)
Power
transformer
(24OV)
Power
transformer
(1
10V,120V,220V,240V1
Fuse
(2.5A1
Fuse
(1A)
Push
switch
(POWER)
LinevoltagÊ
selector
Ceramiccapacitor
(0.01/Ac
2s0v)
AC socket (AC OUTLETS)
AC power cord
Screw 3 x 8
(for line voltagpselector)
:":::.
::::'i
ASG-521
AKP.O41
ADG.O52
ATT-794
ïË'i.rbo
ASG-522
ADG.O43
ATT_795
AEK.106
ASG.52O
AKR.O31
ACG-001
AKP-O41
ADG-046
BMZ3OPOSOFZK
Mark Symbol & Dæcription Part No. Remarks
KU type YP type S type
a**
A** Fuse
(1A)
Fuse
(2A)
Operating instructions (
English
!
Packing
case
AEK.106
AEK-l03
AR8406
AHD.9O2
PACKING FURNISHED
PARTS
a
a
I

3
2
ForSType
o
o
D6a9
GP-200
06,7 2SC
oE,g 2SC
oro,fi 2s!
ot2,r3 23[
Qt4,15
zSE
POWER AM
È-
or NJM45580X
EOUALIZER
AMP
LCH
1AÆ./
ADAPTOR
liltoûv-l
REC
nr6ôT|
arJX/vlæo
fis-fi|
TUNER
llSOnvl
PHONO
t-;ïl
RCH
PHOTTO
TUNER
AUX/VIDEO
REC
TAPE/
AOAPTOR
ac ilo,rzov
2æ,24Ot
3ol6oflt
AC PO$GR COFD
ÂDG-046
LII{E VOLIAC SELECÎOF
a(R- o3l
220v t20v
21o^t llov
93: PO*ti
asc
- 320
ra ac220.2.tov
mx-rôe I
2A: ACilO,t2OV
AEK
- I03
L- -____J
1r all-793
A
lA'
Als,.'.t
lroEz
u
This isthe basic $hematic diagram,but the ætual ciroil may vary
due to improvements in d6ign, PL!
PHor{O
9v sODA
AEL-O75
o
o
AF Assry
s,il-
|
-l
sr: FultcYroil
^sE-ilo
lUTER
a(Â/vroEo Pt|oiro
o4,5
inz-137
lUNÊR
eV 3ODA
AEL-O75