Pioneer SA-620 User manual

(DrqoNEEFl'
ORDER
NO.
ART-
640-O
MODEL
5A-620
COMES
IN SIXVERSIONS
DISTINGUISHED
AS FOLLOWS:
O
o
a
Thisservice
manual
isapplicable
to the KU type (pp.1 - 18),yp typg (pp.19.- 26)and
S'S/G
types
lpp.27 - g2l.Wtren
iËpairing
theHE, He ty'pes,'please
see
tlreadditional
service
manua!
(ART-641).
For
thecircuit
oescrùtlon,
pteàse
refer
io the -supplôment
of model
SA-720
service
manual
(ART'765)'
Cemanuel
d'instructionserefère
aumode
deréglage,
enfrançais.
Este
manual
de
servicio
trata
del
inétodo
de
aiuste
escrito
en
espaffol'
CONTENTS
SPECIFICATIONS
.
FRONT
PANEL
FACILITIES
BLOCK
DIAGRAM
PARTS
LOCATION
EXPLODED
VIEWS
P.C.BOARDS
CONNECTION
DIAGRAM
SCHEMATIC
DIAGRAM
1.
2.
3.
4.
5.
6.
7.
2
3
4
5
6
8
11
ELECTRICAL
PACKING
. .
PARTSLIST .
10.ADJUSTMENTS
nÉclncE
AJUSTE.....
ADD]TIONAL
SERVICE
MANUAL
FORYP,
S AND S/G
TYPES
13
15
16
17
18
19
ll
Type Voltage Remarks
KU 120V
only U.S.A. model
s110V,
120V,
220Vand
240V (Switchablel General
export model
S/G 110V,
120V,220V
and
240V
(Switchable) U.S. Military model
YP 24OV
onlY Australia model
HE 22OY
and
2ztOV
(Switchablel Europe
model
HB 22OV
urd 24Ov (Switchablel United Kingdom model
ploNEEFl ELECTFIG,NIG GoFIPG|FIATIGIN 4-1' Mesuno 1-Chome',Mesu'o-ku' Tokvo 153' Jêpan
lJ.6. FIONEEFI a-="-non'Og CG'GIFGIFATIGIN
AS-o^io"a Dniwe' Moonachie' New Je?sev O7O74' tJSA
FlGtl\lEEFl A-ECTFIGINIC (EUF|G!PE! N'\/' Luithêgen-Haven 9' 2O3O Anbwenp' E}elgium
pfcrNEEFl a-EcTFlcrNlca-ausrnaua PfY' LTE'' 'ie-'ao Boundanv Road Elnêeside' vicÙoniê 3195' auscnalra
Y L O APR.1981 Printed
in laPan

TAPE{
3. BLOCK DIAGRAM
** Relay
ASR-033
** Push
switcù'
(SUBSONIC,
MODE)
ASG-286
** Rotary
slide
(SPEAKERSI
ASE-003
A** Push sv\ritch
(POWERI
ASG-521
TAPE?/ AOAPTOR
REC PLAY
PROTECTION
CIRCUIT
læ
LR
PI{ONES
Electrolytic
capacitor
(8200/50vt
ACH-215
AF assembly
GWK.167
FL asæmbly
AWV{18
* Variable
resistor
(BALANCE,
VOLUMEI
ACV409
Ji
TUttER
i
I
TAPE
I
I
I
Plroio
e or l-i6o.ïl
----tl
|,.PoFF I
R CH (SAME AS
ÏO EOUALIZER
AiIP
AND FAST
STAGE
OF
POWERAMP
LRLR
LB J LAJ
LSPEAKERS J
TopViar
A** rr."
AEK-1(x)
[* Power
transformer
* Filament transformer
ATT.577
ATT-667
ÊEOEÊOCÈCÉE0
oÊocoooqEÈOË

1.
SPEC|FlcAtloNs
Amplifier Section
Continuous
power
output
of
45watts*
nel,
min.,
at
8ohms
from
20Hertz
Heitz
with
no
more
than
0.03%total
distort
ion.
per
chan'
to
20,000
harmon
ic
150mV
A,
B.
OFF
2OHzto
20,000H2l0.3dB
1,2/ADAPTOR
Specifications and the design subiect to
without notice due to imprcvements'
possible modifications
Miscellaneous
Power
Requirements AC 120V'
60H2
Power
ConsumPtion 100W
(UL)
Dimensions '. " ' 420(W)x94(H)
x349(D)mm
l6'9/16(W)
x 3-11/16(H)
x 13'3/4(D)
in
Total
Harmonic
Distortion
(20
Hertz
to 20'000
Hertz'
8ohms,
from
AUX)
22.5
watts
per
channel
poweroutput
. . . . Nomore
than
0'02%
lntermodulation
Distortion
(50
Hertz
:7'000
Hertz
=4 : 1
8 ohms,
fromAUX)
continuous
rated
power
output ' ' No more
than0'03o6
22.5
watts
perchannel
poweroutput
. . . . Nomore
than
0'02%
Damping
Factor
(20Hertz
to 20'000Hertz'8 ohms)
' ' 50
Input
(sensitivitY/l
mPedance)
PHONO " " 2'SmY
l5O
kilohms
TUNER 150mV/50
kilohms
AUX ' "' 150mV/50kilohms
TAPE
PLAY
1,2/ADAPTOR'' " 150mV/50
kilohms
Phone
overload
Level
(T'H'D' O'O3o/o'
1'000H2)
'HONO ...120mV
Output
(Level)
TAPE
REC
1,2/ADAPTOR
. .
Weight(withoutpackage) ' ' ' ' ' 6'7kg(14lb
12oz)
Furnished
Parts
Operating
I
nsturctions
NOTE:
Measured pursuant to the Federat Trade Commission's
ààrt"ii., rule on Power output Claims for Amplifiers'
I
Speaker
FrequencY
ResPonse
PHOfrfO
(RIAA Equalization)
TUNER.
AUX,
TAPE
;LAY 1gHz
to 60,000H2
!3dB
Hum
and
Noise
(lHF.short-circuited'
A networkl
ToneControl
BASS. ""i10dB(100H2)
TREBLE " t1OdB
(10'000H2)
Subsonic
Filter
' tSHzt-6dB/oct)
Loudness
Contour(Volume
controlset
at-40d8 position)
-. +6dB
(100H2),
+3dB
(10.0O0H2)
PHONO
TUTICN,
AUX,
TAPE
PLAY
1,
2/ADAPTOR 83dB
102d8
II

'l
2. FRONT
PANEL
FACILITIES
o PowER
sWlTcH
Depressthis switch to turn on or off power' When this switch is
depressed,power is supplied and POWER ON- in-dicator lights'
When this switch is released,
power is turned OFF and POWER
ON indicator
isextinguished'
@ PHONES
JACK
Plug headphones
into this iack for private listening' Set the
SPEAKERS
selection
switch
to OFF'
@ SPEAKERS
SELECTOR
Change
the setting
of this switchto listen
throughheadphones
or
in order to choose either of two pairs of connected speakers'
Normally,
the switch
should
bepositioned
at A'
OFF . . Use this setting when listening
through headphones
{nosound
comes
out of the speakers)'
A . . . . Sound is heard from speakersconnected to the A
speaker
terminals.
B . . . . Sound is heard from speakersconnected to the B
speaker
terminals'
@ BASS
ANDTREBLE
CONTROLS
Use these
controls to adiust the tone. The right one controls treble
and the left one controls bass.
FLAT isthe neutral
position.
Turningknob clockwise
accentuates
the bass
or treble,
and turning knob counter{lockwiseattenuates
the bass
or treble.
O LouDNEss
swlTcH
Depress
this switch to ON when listeningat low volume' Bass
and
treble wilt be emphasized to compensate for human listening
characteristics
and provide natural listeningcurve'
@ rape 2/ADAPTOR
SWITCH
Deoress this switch to ON when using a graphic equalizer or a
second tape deck (or any equipment) connected to the TAPE
2/ADAPTOR terminals.
O TUNER
SWITCH
Pushthis switch to listento an AM or FM broadcastor to record
a radio Program'
@ PHoNo
swlrcH
Pushthis switch to listen to records
or to recording from records
to tape.
@ TAPE
1 SWlrcH
Pushthis switch to listen to tape deck connected to TAPE 1 ler-
minals or when dubbing from one tape decktoanother'
@ AUX/vlDEo
swlrcH
Push this switch to listen to a program sourceconnected to the
AUX/VIDEO terminals
@ volutvtE
CoNTROL
Turn this control to adiust the output levelof the speakers
and
the headphones.
Output is minimum at 0 and increases
as the
control is
turned
clockwise.
C) BALANCE
CONTROL
This control shouldnormally be setto 5. When the output from
the left and right speakers
or headphones
is not the same,
adiust
by turningthe control clockwise
or counterclockwise'
GD
SUBSONIC
SWITCH
Set this switchto the "15 Hz" position
when listening
to records'
It serves
1o
attenuate
frequencieslornær
than 1
5 Hz and,therefore,
it can be used to suppress the ultra-low-range noise which is
generated by record warp and other factors. When listening to
program sources
other than records,
setthis switch to OFF'
@ MODE
SWITCH
This
switchshould
normally
besetto STE
REO.
STEREO. Set here lor ordinary stereo
listening
of a stereo-
phonicsource.
MONO. Set hereto listen to a monaural source.The left
and right channelinput signalswill be mixed and
heard in mono through both the left and right
sPeakers.
@ POWER
METER
The POWER meter shows the output level in walts when speaker
systems
with a nominal impedance
of 8 ohms havebeenconnected
to the SPEAKERS
terminals.
L . . . . Outputof leftsPeaker
R . . . . Outputof rightsPeaker
J
J
POWER
ON indicator Function indicator
I dF'l ' srH
-.*.tt-*

NOTES:
c Partswithout part number cannot besupplied,
o The $ mark found on some component parts indicates the importance of the
safety factor of the part. Therefore, when replacing, be sure to use pafts of identical
designation.
c For your PartsStock Control, the fast moving items are indicated with the marks
*,k and *.
** GENERALLY MOVES,FAS?EA THAN *.
This classification shall be adjusted by each distributor because
it depends on model
number, te
mperaturc, humid ity, etc.
Parts
Listof Exérior Gomponents
Mark No. Part No. Deædption Mark No. PartNo. Description
1. VBZ30P060FMC
2. ANM-011
3. AAB-250
4. AAB-2/E
5. AAB-2/|9
Parts
Last
of lnGrior Gomponents
PanNo.
Screw
3x6
Front
panel
æsembly
Knob(SPEAKERS,
BASS,
TREBLEI
Knob
(BALANCE)
Knob
(VOLUMEI
Dæcriptian
ANE-269 Top cover
FBT40P080FZK Screur4x8
AEG,672 Foot æembly
Leg
Bottom plate
No. Part No. Doscription
6.
7.
8.
101.
1o2.
No.Mark
a*
A** 1. ATT-667
2. ASG-521
3. ACG-OI7
4.
5. AAD-264
PMZ3OPO6OFMC
VBZ3OPO6OFMC
wA92F140U100
NKgOFUC
AEL-33É-
11. VBZ30Poff)FMC
12. NKXIFUC
13. WAXlFl60U050
14. VXZ40F080FMC
15. AAD-265
16. AWV-018
17. AEG-488
18.
19. 2SC2525.lA^B*
l2sc2525lAl-G*l
l2sc2525lAl-X*l
20. 2SA1075/A/-B*
l2sA1075lAl-G*l
(2SA107s/A/-X*)
Povrær
transformer(1
20Vl
Push
switch
(POWER)
Ceramiccapac,tor
(0.01
/
ACl25Vl
Knob
{POWER)
Scraru3x6
Screw3x6
Wæher
Nut
LED
Scral 3x8
Nut
Wæher
Screvv4x8
Knob
(FUNCTION,
SUB-
SONIC,MODE)
FL assembly
Insulator
water
Transistor
Transistor
Screw
3x16
ACsocket
(AC OUTLETS)
AF assembly
Fuse
(4A)
Knob(TAPE2lADAPTOR,
LOUDNESS)
BBT3OPOBOFZK
MTZ3OPlOOFZK
ADG.O52
AEC-327
AKE.O51
wA35F100N080
Screw 3xB
Screw3x1O
AC porær cord
Strain relief
Terminal (SPEAKERS)
Wæher
Flexible ring
LED sock€t
Frame
Panelstay
Mounting plæe
Stay mold
Heatsink
Wire holder
Bear panel
Right fram
Headphones jack æsembly
Speaker selectoræsembly
Switch æembly
Volumo assembly
Terminal (GNDI
26:
27.
A 2a.
29.
30.
6.
7.
8.
9.
* to.
31.
10r.
102.
103.
104.
105.
106.
107.
108.
109.
110.
111.
112.
113.
114.
115.
A**
21.
22.
23.
24.
25.
*hfe should havethe same
value.
ABA-258
AKP.041
GWK.'67
AEK.lOO
AAD-266
o
o

External
AppearanceofTransistorsandlCs
2SA1075lAl
2SC2525lAt Tvpe No
Lot No
2SA1015 2SC945A
ACl20V
60Hz
swrr^r_tED
TOTALI
O()WMAX
55 POWER
UNSWITCHED
2OOWMAX
2SC1384
25D880
2SD313
H412010
TA7318P
2SA979
2SA1
123
2SC2d|1
E
D1
POWER
a
a
al
o
ot/
actzsv

AF Ass'y(GWK-
167)
.9 qr? è13 qll q{5
Q1 25C2i
03 2SAl075/A
a4 2SAl075/A
6
5
4

O.P.C.
EOARDS
CONNECTION
DIAGRAM
SPEAKER
SELECT LCH
SPA
RCH
LCH
C,PR
Kçh
HEADPHONES
CK Ass'y
FL Ass'y
(Awv-O18
)
VOLUME
Ass'
3
2

-Jr/
I
{-
I
-
slueuoduroC
rolælul
sluauoduroCroualx3
sMSlA OtCOldXt '9

I
290-cov
pJoS
rar\r\od
cv\7
[ù0-d)v
(sr3llno cvl_
relros
cv \y'
820-8)V
(t3dvll leuruilel
8ZO-8)V
(UOIdVOV/Z
3dVI}
leu!ulrel
6É0-8)v
(IndNll teulu.rrel
ZZOS)V
(sSNOHdl
leurullal
,u\a!^
leued
reeu
0tt-Icv
(3'l83Ur'SSV8l
lolslsel el(p!æA
|'
tæ-3sv
(sH3)V3dS)
Wrl,t^s 3p!ls Â:elog 11
oeo-N)v
(s3NOHd)
Ice! euoqd
tz9-9sv
(usMOdl
g3r!,r^s
qsnd
+f V
982-9SV
(300w'crNossnsl
qrllMs qsnd
++
pe^olueupuedqrlrn,le!^ luorl
tgz-cvv
o
a
jlr!È\\È\\\N\\\\\ut
z9z'9sv
(ss3
Nonol'z3dvuHordvov)
r{Jurr,rs
qsnd
+
totr9sv
(NOrrcNnJl
tlcllrr^sqsnd ++
60t-^cv
(tuûn]0^
'3cNv'lvs)
JOISTSaJelqeue^ +
91o-^vv
eqnlrolPclpu!'ll +
99z-ovv
qou)
8rz-8vv
qou)
6tz'8vv
liùtÙNv
^lqurosse
laued
luoll
692-3NV
Ja^oJ do
o
r-- ooul
- ;*ç lÈ'l
992-OVV
qou)
^^e!^puedluorJ
'c|a' î,\tp'unq'arnloradutal'r?qulnu
lapotuuospuadapïasnocaqrofiqt4s'Pt4coatqpa$nfpoaqlPqsuo'|ocltlssDlcstq'
'+ NVHJ AflISVi sgtow ITTVAqNq9 ++
'+ Puo
++
sq,out
aql qlm palDcrpu! arD su)alt Sulnotu lsz! aw'lorluoc ïcols sltod rnoî rol
'uo!tDuElsap
pctqapl lo slrDCIasn
oJ arns
aq 'Sutcoldar uaqm 'aroJaraql 'lrr,d artllo rolcol Ê'latDs
aql lo acuolrodul, aql tulo"tp"t iltod Tuauodutoc atttos uo punoJ +rDu V aqJ I
f
Nolrvco'l sruvd'?

Ma* PartNo. ùmbol & Dærbtion SWTICH
Assembly
Mark PartNo.
C
I
RStP152J
RSlPL471J
A RD1/2PsF12rJ
RDl/2PStrtrtrJ
RNl/4PO4872F
RNl/4POS)01F
A RDI14PMFDDDJ
SEMICONDUCTORS
Mart PartNo.
R98
R99
R108
R73-R80, R100-R102,R106,
Rl07
R19,
R20
R21
,R22
R55,R56,859-R70,8103
Symbol& Dæcription
Symbol& Do-ription
ff ASG-286
RD1/4PM332J
CEANL
R22M50
SPEAKER
SE
LECTOR
Assembly
Mark Pa?tNo. Symbol& Dercription
53 Push
sl,\ritch
(MODE/
suBsoNlcl
R115,
R116
c75,C76
** 25C2602
** 2SC1919
** 2SA1015
** 2SA979
** 2SC1775A
*r 2sA1123
ff 2SC2631
ff 25C22754*
(2sc2275-R*)
** 2SA985-O*
(25A9B5-R.)
tt 2sc945A
t* 2SC1384
** 2SD880
(2SD3131
1S1555
(1520761
GP-25D
10F-2
MZ-270
twz-2701
Mz-192
twz-1921
MZ-150
wz-150)
STV3H
ot, 02
03, 04
05, 06
07, 08
Q9,
010
011,
012
013,
014
015,
016
017,
018
o19,
O20
a21,02,
o23
D1,
D2.D5
Dg-D12
D7,
D8
D13
D14
D6
D3,
D4
Svmbol
& Deæriotion
** ASE-003
RDl/2PS181J
RDl/2PS151J
RDl/4PM563J
VOLUME
Assembly
Mark PartNo.
s4 Sliderotary switch
(SPEAKERSI
R111,
R112
R113,
Rî14
R109.
Rl10
Symbol& Dccription
*hfe of 015-018 should havethe same
valus.
** ACV409
CCDSL
221Jfi
FL Asembly (AWV-018)
CAPACITORS
Part No.
VRI Variable
(VOLUME/
BALANCE
(500k+500k+
1(rck+
lookl
c77,C78,C83,
C84
Symbol& Dercription
t
A*
A**
CKDYF103250
CKDYF
473250
CKDYB332K50
CEAR47MsOL
CEAlOlM25L
CEANLORlM50
RESISTORS
Mark PartNo. Symbd & Doæription
c1
c5,c6
c7,c8
c9
cl0
cll,C12
OTHERS
Mark PortNo.
ACP-078
RDl/4PM 563J VR1
,VRz Semifixed
|.2.2k'Bl
R1-R4
SYmbol& Oe$dption
** ASG-401
ff ASG-262
s1
s2
Pushswilch
(FUNCTIONI SEMICONDUCTORS
Push
switch (ADAPTOR/ Mrft parrNo.
TAPE2,
LOUDNESSI **
** TA7318P-A
HA12010
152076
(
1S1
555)
Part No.
o1
02,43
D1,
D2
Symbol& Deæription
**
tASR.O33
ATT.577
AKA-077
AKB-078
AKB.O79
RLI Relay
T2 Filament
transformer
Terminal
(PHONES) *
Terminal
(TAPE1,
ADAPTOR/
TAPE2)
Terminal
(lNPUTl OTHERS
HEADPHONES
JACK
Asembly
Mark PartNo. Symbol& Dæription
AKN-O3O Headphone
iack
AAV.O15 V1 FL indicator
tube

O
e8.ELECTRICAL
PARTSLIST
NO?ES;
o When ordering resisfors, first conuert resistanceualuesinto code form asshown in
the following examples.
Ex. I When there are 2 effectiue digits (any dEit apart from 0), such as 560 ohm
and 47h ohm (tolerance isshown by J = SVo,and K = 10Vo).
560e 56 x 10t 56L . RD%PS t56l[t"l
47htt 47 x 103 473 . . RDt/tPS@A@J
0.5a 0R5.. ..... RN2r{@B6r
Ia 0r0.. FS/PODOK
Ex. 2 When there are 3 effective digits (such as in high precision metal film resis-
tors).
5.62ha 562 x IO0 562L . RN/rSR EElECI F
o 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 Ports Stoch Control, the fast moving items are indicated with the marhs
** and *.
** GENERALLY MOVES FASTERTHAN *.
This classification shall be adjusted by each distributor becauseit depends on model
number , temperature,
humidity, etc.
Miscellaneous
Parts Part No.
-
ùmbol & Dæriptbn
Part No, Symbol & Dæcription CEAîOlMsOL
CEA221M
35L
CEA
221M
sOL
CEA471M
6L
coMA 122K50
coMA 562K50
coMA 473K50
coMA 563K50
c!.5,c46,C72
c69
c82
c59
cl 5,Cl6,C55.C56
c57,C58
c47,CÆ
cl9,C20
c41-U4
c31,C32
c53,C54
c27,C2A
c23,C24
c5,
c6,c25,C26,
C37,C38
c7,c8
c71
c62-C65,C73
*
1\
*r
A**
A
A* ATT.667
AEL.334
AEK-1OO
ASG-521
ACG-01
7
** 2s'C25.25lAl-B*
** esc2525lAl-G'l
** (2SC2525/A/-X')
** 2SA1075lAl-B*
ff (2SA1075/A/-G*)
** (2SA1075/A/-X*)
^AKP.O41
,a ADG-052
GWK.167
AWV.OI8
AF Assembly
(GWK-167)
CAPACITORS
Mark PartNo.
*hfe of O1-O4 should havethe same
value.
T1
D1
FUl
s5
c1
01,02
03,04
Symbol& Dercription
Power
transformer
(120V)
LED
Fuse
(4A)
Push
switch
(POWERI
Capæitor
(0.1/AC125Vl
AC socket
(AC OUTLETS}
AC por rer cord
AF assembly
FL assembly
coMA124K 50 C51,C52
coMA 183J50 C13,C14
coMA303J50 c49,Cso
coMA683J50 Cî1,C12
ccDsL050D500 c39,c40
ccDsL151K500
ccDsLo30c50
ccDsL
270J50
ccDsL
470J50
ccDsL101J50
ccDsL151J50
CKDYB
391
K
50
CKDYF10:]Z
50
CKDYF47325,0
A
ccDsL 221J50
ACH-215
ACG-O19
ACG-o17
CEANL
OlOM
50
CEANL
2R2M
50
CEANLlOOM16
CEAR47MsOL
CEA4TOMlOL
CEA47OMsOL
CEAlO1M
lOL
CEA
1O1M
25L
c1,c2
C67,C68 Electrolytic
(8200/5OV)
C66 Ceramic
(0.01/AC150)
C74 Ceramic
lO.O1lAC125l
c17.C18,C33.CU
c21,C22
c3.c4
c61
c29,C30
c70
c9,
c10,
c35,c36
c60
RESISTORS
NOTE: When ordering resistors, conuert the resistance value
into code form, and then rewrite the part no. osbefore.
Mark Part
No. Symbol& Dccrigtion
I
oA
* ACT-140
t Acr-140
RDl/4PMtrtrOJ
ACN-114
VR2 Variable
(100k-8,
BASSI
VR3 Variable
(10Ok-8,
TREBLEI
R1-R18,R23-R54,
R57,R58,
R81-R97,
R104,
R105
R71,R72 Wirewound10.47
+O.47
,
5Wl
-

ATIC DIAGRAM 3
2
LCH
- PLA}
TÀPE2/AMPlOR
L R€C
AF As)
TAPE I
L REC
vroEo
LrilSlU
TUNER
ulglJl
PHOrc
lliw-l
-__l [";;
swtTcHA$'y: I a$'y
-:-----.l;Ir---
RCH
Prcrc
ràfifl
lUNER
liT6-û
aux/vro
t!&!l
_ REC
T@EI
|APE2/AMPfæ
I
q,2 2Se602
o3,4 2SCB|9
05,6 2SArOtg
EO!ALIZEÊ
ÂW o?t8 tæ.2
D9{2 GP-2S
tl
ll
li-e-
Â
1 FESISTOFS
Indic.td in !, ZW, 15%tolerame unl6 oterEie ætd k r ko,
M Mo, (F) :'l%, (G) : -2%,{() :'lq.(M);ræ4 loltæ.
2 CAPACTIOflS
Indicârd in c@ty {!F)/voll+ (V} unlæotheeie nord p;DF
Indicaùon wilhout volre 6 SV exc€pr êlærolvric capâclb.
3 VOLTAGE
f] sign.r volt+ âr € W | € w 8r) oùirr (1ru)
\f oC toh+ f
vl at no i@r renar
Value in ( I ii OC
vorrç at rôrd ærcr
4 0rÉÊ rs
A rAdjuning
Fint
The ,C\ m.û tod on bm. cmæ6t Fn! idicd6 thê 'm'
æna,iôi ot uo stav tæto' ol ù. o!ft Th.'elor. whcn rælæ'4
h are to uc Fm ot id.nth6l d6i9aion
Thir ir rhe h3h *hæ.ric di4..m, &r rh. ærs.r cndit mây vâ.v
ds. ro iftp.@menÙ iÊd6i$
SWITCHES:
sr-| :
FuNnoN (ruNERl ON
-9Ef
si-2 ruNcTroN
(PHoNo, oN-oF
St.3:FUNCTION
(TÀæi) ON-QÊf
Sl-4 :TNCT|ON (ÂUx/vlæo) ON
- 9EE
sz-r i TAPE2 / AOAPTOR ON
--ofE
S?-2:LOUONESS d-gff
s3- r MooE STEREO
- mO
s3-2 suæoNrc ----d- ar
s sÆuERs QE!-a-8
55 : rcÆR oN- oFF
ThesnderlindidicàrGth€ $tch Pirion
I
o3
2
rll'-_
I i--_

4T 5NOTE:
The indicated semiconductors are representative ones
only. Other alternatiue semiconductors may be usedand
are listed in the parts list.
;1
h3: tt@
-l
HEADP}IO{€S
JACK Aôs,y
LCH -
SPA
RCH J
rî'7-ô-l
LCH -
s.B
Rcn
J
o
a
o7,8 zSAm
o9,ro zscnsa
arl2 â !23
ot3,É 2sc263|
0i3,16 æC2273
Q[7,r8 23A960
or9,20 2sc9a6a
o2r 2s344
FLAs! awv-o'ra

9. PACKI
NG
x.-..
-No. Part No.
1. AHA-281
2. ARB-411
3. AHD-923
Sicb pad
Operating instructions
{English}
Packing case
o
o

o
10.AJUSTE
Aiuste de la corriente devatiada
1. Poner el control de volumen (VOLUME) en su
posiciôn de nivel minimo, conectar la alimenta-
ciôn y esperarunos 10 minutos.
2. Conectar un voltfmetro de CC a los terminales
TP (canallzq.; TPl @ y TP2 O ,canal
Der.;
TP4 @ yTPS O )delconjuntoA.F.
3. Comprobar que la tensiôn entre TPl y TP2
(canal Izq.) esté dentro del margen de 4,5 mV
- 100 mV CC. Luego rcalizaruna comprobaciôn
similar para el canal i)er. (entre TP3 y TP4).
Si la tensiôn es menor de 4,5 mV, cortar la
conexiôn provisional A (canal Lzq.\, y conectar
provisionalmente B (canal Der.). Si la tensiôn
excede de 100 mV, comprobar que no haya
ninguna averfaen el circuito.
Extraerla
tapa
TPl TP2
fn-6
Ajusæ del indicadordesalida
1. Ajustar el control de tono a la posiciôn de
respuesta
plana.
2. Poner el selector de altavoces (SPEAKERS) en
la posiciôn A y conectar un resistor de 8 ohmios
y el voltfmetro de CA a los terminales de salida
de altavos.
3. Poner el selector de funciôn (FUNCTION) en
la posiciôn AUX, y aplicar una sefralde 1 kHz,
150 mV a los terminales de entrada AUX.
4. Ajustar el control de volumen (VOLLIME) de
modo que la tensiôn en los terminales de salida
(SPEAKERS)
indique9 V (CA).
5. Ajustar la VRl (canallzq.) y VR2 (canalDer.)
del conjunto F.L. de modo que el indicador de
potencia de salidaindique 10 vatios.
Coniunto
A.F.
TP3 TP4
[-=J
I
o
o
F--
Conex
iôn
provisional
AF.-
' Conexiôn
provisional
B
d/vR2 "î:
Conjunto
F.L.
II

L'
I
t
-'lJ
elquasu3
e.,
lUA _O
zaA'
1-i
vdJ- tdl
lv elqurasuf
'qîeltÀ0I aqcrJr?ellJosap acu?s
-smdap rnel"crpu!.I anb ug? TJ alquesuEl ap
(atlorp alon)7gn 1a(aqcne8
a1o,r)
1gn rapgg'9
'(VC) n 6e epfg lros (sanbrlsnoce
selulac
-ua) algos ap sauroq sal rns agnbrpur uorsual
ei anb ugr" aumlo^ ep epu"ruruoc e1 lapgg'7
'xnv agr?uqpsauoq xnB^tu 0gI
'zH{ T ap ptrEls un er?+etusu?r+
1a XnV uoll
-rsod
e1rns suorlcuoJep Jnelsîntutuoc eI Jaæld'g
'anblpnoce olulec
-uqt ap elîros ap sauJoq )m" vc arîatullo^ un
îe I ap meprsgr un relcerruor le V uorlFod e1
rns sanbrpnoc" salulacuasaprnalcelgs
aI racsld'Z
'auârp1ca.r
uorlsod BIrns gilteuol ap apuerurrocu1ra189g
'1
elyosep tne1ec!pu!,;ap
eôepô9g
v uo!xeuuocJalul
1-l
zdJ- tdl
alcro^noc
elJo^elu3
eprarnss?.s
'^* 0;1i"":f"i,tH: "t:""ffi;'i:'j
e1 anbs.rol '^ur g'7 B arnelreJur 1se uorsuel
e1
-rs
(a11o.rp
eron)g uorxauuocralul.l la (aqcnu8
aroa) y uorxauuoaralur,l.radnoC
.(tdl la gdJ
arlua) slTorp aroÀ €I araruutu aruoru EI ap rarJ
-Ir9^'CC ^ur 00T 1o^tu g'7 a.4ue
lros (aqcne8
alon) 641 1a IdI erlua uorsual e1anb raIJIrg^ .g
'JVelqwesua,p( O gal,
te@7dI :a?lorp
aror 'Q961 1a@
IdI :aqcneF
arol) 61 seuJoq)rne.
CC erlatullo^ un ralceuuoC.Z
sdlnullu 0I uoil^ua arpua+æ
1auorsuel snos garudde(Ia4laru ,urntururtu uorl
-1sod
e1rns arunlo^ ap epueruruoc
BI Jerlrno; .I
flrem9Pluernoc nPa6e169g
xeuuosJalul
TI
o
o
o
Ç
Sgvlgfu'0t

^lqLuassv
-l
J
e-tuA zuA----o
o
o
I raounf
r+ lad|'r|nls
'T
T_T
vdt tdj.
Âlquassy
3y
'slî"Â{0Tsp"ar
rolscrptll ra^rod lndlno aq? 1"q1 os l(IqtuessB
'T'.{ eqt Jo (qc U) ZU^ prrB
(r{c
T) IU^ lsnfpv .9
'(cv)
no
spear (gggyvgds) spurrrrra?1nd1no aqt uo
a8ellor aql luql oslorluoc gNnTO^ aql +snfpv .7
'spuruual lndur
XnV aq+o1 1euEF
^ur 0gI .zHrl T u dlddu pue
'uorlrsod XnV aq+o+
qclrirs NOIJCNq.{ aqî las .g
'sIerrrrrrJal
1nd1no
ra4eads
aql ol
ralatullo^ cv prrBrolsrsal ?JgrrB +cauuoc pr,rB
'uorlrsod V eql o1 rolralas SUgTVgdS aql îaS.Z
'uorlrsod
+eU
eql o?
Iorluoc auol aq?
las .I
lueuænlpv rolPctpul lndlno
rdI
'amlIBJ1!nr4c
roJ{aaqc'^ut 00I spoacxa
a8eqoa
aWJI .(qcU)
g radurnf
puu'(qc 1) y radurnl1nc 'nur 9.7 uurll
ssal s! a8ellor orll JI '(tal pue gd1 uaernleq)
qc U aqî roJ >lceqcrBIlurF B a{Btu uaq;, .a8ue.r
Aur 00I - ^ut 9'7 CCIaq? qqt!.À{ saq (qc 1)
ZdJ prre IdJ uaa^qaq a8ellor aq? ?BrI?
{caqC .g
flquesse dV aql Jo (() gd;
pu€
O?dJ:qc U ' e ZdI pue
@
faliq" r)
sl"rnrural dI aql o1 ralalullo^ cc 3 lcauuoc'z
0ï rnoq' rr"Àr
pu* 'uo raarod
"ut #t*i:ii
(un(ulu-Iuol u/r4,op
lo4uoc gWnTO^ aql l.rlnl'T
lueulpnfpy luorrnC alpl
o
a
'lourqec aLllla^ocdol.
stNlnrsnlcv 'o
!

(/) rrloNEEFl'
o
STEREO
AMPLIFIER
This additional
service
manualis applicable to the YPtype (Australia
model),Stype (General
export
modellandS/Gtype (U.S.
Militarymodel). Thebasic
performance
of theYP,
SandS/G
types
isthesame
asthe KU type (U.S.A. model),
please
refer
to the KUtypeservice
manual
(pp.1- 181with theexception
of this supplements.
SPECIFICATIONS
The specifications
for YP, S and S/G types arethe sameas
the KU type exoept
forf
ollowing
sections:
Miscellaneous
Power
Requirements
YPtype ... AC24OY,5O|6OHz
SandS/G
type. . . . ACl1Ol12Ol22Ol240V
(Switchable),50/60H2
PowerConsumption
YP type . 240Ml
SandS/G
type . . 110W
I
a

CONTRASTOF MISCELLANEOUS
PARTS
NO?ES:
c The I marh found on some component parts indicates the importance of the
safety factor of the part. Therefore, when replacing, be sure to useparts of identical
designation.
o For your PartsStoch Control, the fast mouing items are indicated with the marhs
** and *-
** CENERALLY MOVES FASTER'THAN *.
This classification shall beadjusted by eachdistributor because
it depend.son model
number, temperature, humidity, etc.
I
a
I
Ia
P.C.
BOARDASSEMBLY
Mark Symbol& Description Part No.
KUtypa Stype S/G typo YP type
AF æsembly GWK.167 GWK.169 GWK.169 GWK.168
ELECTRICALPARTS
Marlr SYmbol & Dercription Part No.
KU type S
type, S/G type YP type
a*
[*
[*
A**
A**
A**
A**
À**
,{\
Â
T1
T1
T1
FUl
FUl
FUl
s5
s6
c1
Power
transformer
(120V)
Power
transformer
(1
10,12O,
22O,24OV
I
Power
transformer
(2zlOV)
Fuse
(4Al
Fuse
(2Al
Fuse
(T1
.25Al250V)
Pushswitch
(POWERI
Line
voltage
selector
Ceramiccapacitor
(0.01
)
ACsocket
(AC OUTLETSI
AC powercord
:"::1
AEK-1OO
::::::::
:*::l
ACG-o17
AKP.O41
ADG.O52
:::::
AEK.103
ASG-520
AKR.O31
ACG-001
AKP.O41
ADG.O46
ATT-711
AEK.lOO
.:::::::
ASG-520
AKR.O31
ACG-001
AKP.O41
ADG.046
ATT.7O4
ïËr.drï
ASG-522
ADG-043
PACKING
AND FURNISHEDPARTS
Mark Symbol & Dercription Part No.
KUtype S type S/G type YP type
Ar*
A** Fuse
(4A)
(for
11OV,
120V1
Fuse
(2A) ltor 22OV,24eVl
Operating
instructions
(English
I
Packing
case ARB4î2
AHD-923
AEK.l(x)
AEK.103
ARB"413
AHD.924
AEK-1æ
AEK-103
ARB.413
AHD.924