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This servicemanual is intendedfor qualified servicetechnicians; is not
it
meant for the casualdo-it-yourselfer. Oualifiedtechnicians havethe neces-
sary test equipmentand tools, and have beentrainedto properly and safely
repaircomplexproductssuchasthosecovered this manual.
by
lmproperlyperformedrepairscan adversely affect the safetyand reliability
of the product and may void the warranty. lf you are not qualified to
perform the repairof this product properly and safely,you shouldnot risk
trying to do so and referthe repairto a qualifiedservicetechnician.
W A R NI N G
Lead in solder used in this product is listed by the California Health and Welfareagencyas
a known reproductivetoxicant which may causebirth defectsor other reproductiveharm
(CafiforniaHealth & Safety Code, Section 2S24g.Sl.
When servicingor handling circuit boardsand other componentswhich contain lead in
solder,avoid unprotected skin contact with the solder.Also, when solderingdo not inhale
any smoke or fumes produced.
1. SAFETY NFORMATION
I
( F O RU S AM O D E L N L Y )
O
1. SAFETYPRECAUTIONS ANY MEASUREMENTS NOT WITHIN THE LIMITS
The following check should be performed for the OUTLINED ABOVE ARE INDICATIVE OF A PO-
continued protection of the customer and service TENTIAL SHOCK HAZARD AND MUST BE COR-
technician. R E C T E D B E F O R ER E T U R N I N GT H E A P P L I A N C E T O
LEAKAGE CURRENTCHECK THE CUSTOMER.
M e a s u r e l e a k a g ec u r r e n t t o a k n o w n e a r t h g r o u n d
( w a t e r p i p e , c o n d u i t , e t c . ) b y c o n n e c t i n ga l e a k a g e 2. PRODUCT SAFETY NOTICE
current tester such as Simpson Model 229-2 or M a n y e l e c t r i c a la n d m e c h a n i c a lp a r t s i n t h e a p p l i -
e q u i v a l e n tb e t w e e n t h e e a r t h g r o u n d a n d a l l e x p o s e d ance have special safety related characteristics.These
metal parts of the appliance(input/output terminals, are often not evident from visual inspection nor the
s c r e w h e a d s , m e t a l o v e r l a y s ,c o n t r o l s h a f t , e t c . ) . P l u g protection afforded by them necessarilycan be ob-
t h e A C l i n e c o r d o f t h e a p p l i a n c ed i r e c t l y i n t o a 1 2 O V t a i n e d b y u s i n g r e p l a c e m e n tc o m p o n e n t s r a t e d f o r v o l -
AC 6OHz outlet and turn the AC power switch on. Any tage, wattage, etc. Replacement parts which have
current measured must not exceed O.SmA. t h e s e s p e c i a l s a f e t y c h a r a c t e r i s t i c sa r e i d e n t i f i e d i n
this ServiceManual.
Electrical components having such features are
i d e n t i f i e db y m a r k i n g w i t h a A o n t h e s c h e m a t i c sa n d
Readingshould
not be above on the parts list in this Service Manual.
O.5mA The use of a substitute replacement component which
d o s e n o t h a v e t h e s a m e s a f e t y c h a r a c t e r i s t i c sa s t h e
P I O N E E R e c o m m e n d e d r e p l a c e m e n to n e , s h o w n i n
r
Test all t h e p a r t s l i s t i n t h i s S e r v i c eM a n u a l , m a y c r e a t e s h o c k ,
exposed metal
surfaces fire, or other hazards.
Product Safety is continuously under review and
2-wire cord
new instructions are issued from time to time. For
Also test with the latest information, always consult the current
plug reversed Earth
(Using AC adapter ground
P I O N E E R e r v i c eM a n u a l . A s u b s c r i p t i o n o , o r a d -
S t
plug as required) d i t i o n a l c o p i e s o f , P I O N E E RS e r v i c e M a n u a l m a y b e
obtained at a nominal charge from PIONEER.
AC LeakageTest
2. SPEC|F|CAT|ONS
STEREO
REGEIVER:
SX-PS2O
Amplifier Section
C o n t i n u o uP o w e rO u t p u t( D l N ) . . . . . . . . . . . . . . . . . . . . . 3 03 0 W
s . W +
( 1 k H z ,T . H . D 5 7 o ,8 o h m s )
.
C o n t i n u o uP o w e rO u t p u t( R M S ) . . . , . . . . . . . . . . . . .W3+ 3 5 W
s . .. 5
(1 kHz,T.H.D.57o,8 ohms)
M u s i cP o w e r( D l N ). . . . . . . . . . . . . . .....48 + 48WW
( 1 k H z ,T . H . D . 0 7 o 8 o h m s )
1 ,
Total HarmonicDistortion
(1 kHz,2OW, 8 ohms) .O.2To*
Miscallanaous
PowerRequirements - 230
....................22O V AC, 50/60Hz
P o w e rC o n s u m p t i o.n . . . . . . . . . . . . .
. . . . . . . . . . .1.8 2W
. .
Dimensions .260 (W)x 180 (H)x 301 (D)mm
W e i g h t( w i t h o u p a c k a g e . . . . . . . .
t .l . . . . . . . . . . . . 4k g
.9
FM/AM Turier Section
FM Tuner Section
F r e q u e n cR a n g e . . . . . . . . . . . . . . . . . . . . . . . . . M8 7 .tS 1 0 8 . 0M H z
y . .. Hz o
U s a b l e e n s i t i v i t.y . . . . . . . . . . . . . . . . . . . . , .M . . n.o.:12 . 8 d B f . I H F
S . .. o . . .
(1.2 pV/75ohms)
Sensitivity (DlN).................. Mono S/N 26 dB: 1 pV/75ohms
StereoS/N 46 dB: 50 pV/7Sohms
Signal-to-Noise Ratio(lHF,85 dBf Input).......... Mono: 77 dB
Stereo:73 dB
Signal-to-Noise Ratio(DlN) ........ Mono:66 dB
Stereo:60 dB
Distortion . . . . . . . . . , . . . . . . . . . . . S t e r S9 o( 1k H z )
0.eo:
A n t e n n a n p u t. . . . . . . . . . . . . .
I . 7 5 o h m su n b a l a n c e d
AM (MW) Tuner Section
F r e q u e n cR a n g e . . . . . . . . . . . . . . . . . . . . . . 5.3.1 k.H.zt o 1 . 6 0 2k H z
y . . . .. .
Sensitivity (lHF,Loopanrenna) .......350 pV/m
Antenna Loop Antenna
LW Tuner Section (For LW aquipped models only)
F r e q u e n cR a n g e . . . . . . . . . . .
y . 1 5 3 k H zt o 2 8 1 k H z
Sensitivity (lHF,Loopantenna) .....1S00pV/m
Antenna ............
LoopAnrenna
Accessories
R e m o t e o n t r oU n i t. . . . . . . . . . . . . . . .
C l ....................1
D r y C e l lB a t t e r i e ( A A A / R O 3 - U M . .) . . . . . . . . . . . .............. . . . . .2. . .
s .4 . .
FMT-type ntennaA ...............1
A M L o o pA n t e n n a .................1
Operating Instructions ...........1
* Measuredby audio spectrum analyzer.
NOTE:
Specifications and design subject to possible modification
without notice due to improvements.
J
3 . E X P L O D E D I E W S ,P A C K I N G N D P A R T SL I S T
V A
NOTES:
o Theparts with an encirclednumber aregenerallyunavailablebecause they are not in our MasterSpare PartsList.
o The A, mark found on some componentparts indicatesthe importanceof the safety
factor of the part. Therefore,when replacing,
be sureto useparts of identical designation.
o Partsmarked by " A " are not alwayskept in stock. Their deliverytime may be longerthan usuol or they may be unavailable.
Parts list of Exteriorand Packing
Mark No. Description PartsNo, Mark No. Description Parts No.
o 1 POWERASSEMBLY AWZ3944 4I SCREW cB230P080FMC
o 2 TRANSASSEMBLY AWZ3930 42 NUT NI{9OFUC
3 INSULATOR AEZTOO4 43 FOOT(RUBBER) REC-434
4 LOOPANTENNA (L) ATBlOO6 44 SCREW VBZ3OPl6OFMC
5 REMOTECONTROL UNIT AXDt267 A 45 FUSE(T800mA,
FUl) AEI{-507
(CU- SXO4O)
A 46 FFC(i) ADDllOO
o 6 FRONTASSEMBLY AWZ3950 A 47 POWER TRANSFORMER ATS1394
o 7 TUNERASSEMBLY AW23938 48 SPACER AEC1236
o 8 VOLUMEASSEMBLY AWZ394r 49 OPE.INSTRUCTIONS ARC1324
Ol 9 HEADPHONEASSEMBLY AW23942 (Dutch,Su'edish,
Spanish,
10 VOLUMEKNOB AAB125O Portuguese)
RECEMR
50 OPE.INSTRUCTIONS ARC1337
ll (Dutch,Swedish,
Spanish,
12 ROTARYI{NOB AABI273 Portuguese)
CASSBTTE, CD
13 BAND BUTTON AAD2177
L4 FUNCTIONBUTTON AAD2208 51 OPE.INSTRUCTIONS AREI223
I E
SFCBUTTON AAD2I79 (English,French,
Germant,
Italian)
RECEIVER
16 WAI{E UP BUTTON AAD2180 E9
OPE.INSTRUCTIONS ARE1233
17 TIMER BUTTON AAD21B1 (English,Freuch,
Germaru,
18 POWER BUTTON AAD2183 Italian)
CASSETTB, CD
19 AUDITIONBU'ITON AAD21B5 DRY CELL (R03,"AAA") AEX-021
20 BATTERYCOVER AZAI375 54 SHEET AHGlO4O
55 FRONTPAD AHA1476
2L TUNER DISPLAYPANEL AAK2260
22 REMOCON FILTER AAK226I 56 REAR PAD AHAI477
ZJ FUSECARD AAX-243 PACI(INGCASE AHD22T9
24 SCREW (STEEL) ABA1O95 58 FM ANTENNA ADHlOOS
A 25 AC POWER CORI) ADG1049 SCREW VBZ35POSOFMC
26 RUBBERSHEET AEB1111
A 27 STRAINRELIBF AEC_882
2B NYLONRIVET AEC1160
29 SPACER AEC135B
30 FRONTPANEL AMB1937
31 CHASSIS ANA1136
32 REARPANEL ANC1829
33 BONNET ANB1326
34 PACI(HOLDER ANG1434
35 HEAT SINI{ HOLDERA ANG1628
36 HEAT SINI{ I{OLDERB ANG1629
J I HEAT SINK ANH1361
38 SCREW BBZ3OPO60FMC
39 SCREW BBZ3OPOSOFZK
40 SCREW BPZ26POSOFMC
2 3
SD, YPW typos only
( ur cessy)
l-----t
Zo"
SD,YPW
types only f\
cANcEL)l \
t8
\
ffi
2
5 6
"=----
F,N
l-j \
2"'
1o'o
$
\ r
\\-
w,
i\
I
I
\ I
{'\ - l
6'
4{N
NOTE : Screws adiacentto V mark on the product
are used for disassemblY.
a
\-@
49.50,5r.52
D
I 8 I
I
4 . S C H E M A T I C I A G R A M S N D P C BC O N N E C T I O N I A G R A M S
D A D
4 . 1 CON N EC T I ON IA GR A M
D
FRONT assembly
( A W Z 3 9 5 O H E ,H B )
:
(AW23951 HEWZI)
:
( > P33-35)
CN3
z
v < z u
' o < < o - = o : u c 6 6
' l - l a
-) a ' - + O
. ) r d
L r G =q o q a oa
: , : y -d d d
r r
- ' c o F -
: -
o
l o @o o o o o o o @ o @@@@ @ @ @
@ @
CNlO CN3
TUNER assembly
( A W 2 3 9 3 8 H E ,H B )( + P 1 5 - 1 7 )
:
( A W 2 3 9 3 9 : H E W Z It ) P 4 9 , 5 0 )
( } POV
=- (A\
z- (A\
a )
(+
t 2 ( N )
3 4
-rooooo
I-
l - z
AC POWER CORD - l < < O o -
ADGlO49 ( H E: A C 2 2 0 - 2 3 o l 2 4 O V o / 6 O H z l
5 Hzl
- - i
I - I
---") l J J z z <
lu [ =
A D G 1 o 8 7H Br A C 2 2 O - 2 3 O 1 2 3 o - 2 4 O V l
t 5O
5O/6OHz) lo
ADG1Ol 2 IHEWZI AC22o- 23ol23o- 24OV
t '0V 50/60Hzl F) /6) (6)
'l-tr' A t\l
A
POWER
TRANSFORMER (AWZ
T ATSI394 (AWZz
(> P
2
I I
3 4 5
\GRAMS
Jb
L
CND VOLUME assembly
l) e'
V O LU P tJ
(AW23941: HE,HB)
t) Vt)L DOWN (AW23963: HEWZI)
NC
( > P33)
@@@o@@a] I
| ( a re.,rn ri\ ril rn rn ri\ ri)
\ Y Y Y Y Y Y Y Y Y
z
v < z g
o N _ F ^ = i = > v { t 5 ; } _ - _ * = 3 1 - =
q o >
z o o u l - " o G J ] o - t o u - - = - N t u . _ . . 2 @ > > a
j = ^
o < < o . - : u - - A q q o
j i ; H = = ? 7 Z ; :" . o o=- p u ; 5 = = -; - o fv is3 3
- - = a
-l
= = a + n @ E z )
. r + t O
l - r J - - - = =
. o o o u < = s
oo@o o@@ @ @ @
CN3 CN5 DISP.CLK o
DI S P D A T A N
AC ro
GND
o-
AC
I
P OWE R sse mb l y
a CDREO/EN O
(A W2 3 9 4 4 : H E , H B ) q nt (
o
L
(A W2 3 9 4 5 : H E WZ I) r-- S.DATA L
z. T A P ER E O / E No
( + P18-20) a ) CENTERNO F
G
CDR o
N
CND LO
507 CDL o-
PB L I
PB R O
R E CL o
o-
a\ [tr) R E CR
ut\c t-
o o o o o o o o o o o o o o o
I
- l -: l)?>-Z- o=o -a a ==o = = = ^?= = ? e
= A t l - z ^ z -
- \ v l J -
l i = ^ = _ l o z o
- l
- - ) l u * = = - - = = - - ; - ; - ' ) |
t-
I
, a n
I
c l 6 ) o o o o o o o o o o o o o o o Jnd,anlnln
flER
TRANS assembly HEADPHONE assem bly
\NSFORMER (AWZ393O HE,HB)
: ( AW 23942 : HE, HB)
ATS I 394
|AWZ4239 : HEWZI) ( AW 23943 : HEW ZI)
( > P20) ( > P20)
I I 5
_t 6
1. RESISTORS:
t/ew,!'Yo toleranceunlessothemis noted k :k(t,
f ndicated in (), %W,
M:Mo. (Fl:t1/o, lGl:t2%, (K) :t10% (M); t20% tolerance
A 2. CAPACIToRS:
I n d i c a t e di n c a p a c i t y( u F l / v o l t a g e V ) u n l e s s o t h e r w i sn o t e d p : p F
( e
I n d i c a t i o n w i t h o u t v o l t a g e i s 5 O V e x c e p t e l e c t r o l y t i cc a p a c i t o r '
3 . V O L T A G E ,C U R R E N T :
l - * - l : S i g n a l v o l t a g ea t ( 3 O W + 3OW 8(l)output.(1kHzl
[ : D C v o l t a g e V ) a t n o i n P u ts i g n a l
(
Value in ( ) is DC voltageat rated power'
4 - m A : D C c u r r e n ta t n o i n P u t s i g n a l
m V : S i g n a lv o l t a g e a t F M l k H z t 7 5 k H z
-
4,OTHERS:
{: Signal oute.
r
@ : Adiusting oint. p
ffre m a r k f o u n d o n s o m e c o m p o n e n tp a r t s i n d i c a t e s h e i m -
t
I
p o r t a n c eo f t h e s a f e t y f a c t o r o f t h e p a r t . T h e r e l o r e w h e n r e p l a c i n g ,
,
b e s u r et o u s ep a r t s o f i d e n t i c a d e s i g n a t i b n .
l
X m a r k e d c a p a c i t o r s n d r e s i s t o r s a v ep a r t s n u m b e r s .
a h
V ( R E D ): M e a s u r e m e n p o i n t
t
T h i s i s t h e b a s i cs c h e m a t i c i a g r a m ,b u t t h e a c t u a lc i r c u i t m a y v a r y
d
B d u e l o i m p r o v e m e n tis d e s i g n .
n
5 . S W I T C H E S T h eu n d e r l i n en d i c a t e s h e s w i t c h p o s i t i o n }
{ i t
F R O N Ta s s e m b l y
S3OOl POWER
S 3 O O 2 T I M E RS E T
S3OO3 WAKE UP / -
S3OO4 FM MONO
S 3 O O 5 T U N E R_
53006 SFCBGM
_ s3oo7 S M A R TM E M O R Y
S3OO8 SFCCLEAR
S3OO9 S. STEREO IDE W
S3011 DISPLAY
53012 R E CT I M E R/ +
S3OI3 FREO ST /
S3OI4 T U N E R+
s3015 sFc Dtsco
S3016 S M A R T S T A R T/ S E T
S3017 FUNCTION D C
S3OI8 FUNCTIONUNER T
C s3o2o clocK ADJUST
S3O21 MEMORY
S3O22 BAND
S3023 SFCHALL
53024 FUNCTION HONO P
S3025 FUNCTION APE T
D
l-
J I
.0S epsq ol rslsr .eqyt l\W3H roi ms
4,2 TUNER SSEMBLY
A
{88SWA)vl
-
HEWZIOI\LY
-o ltlur u7" \ ," \
r^) /al
:''ef
} I E ,I I 8 O N L Y
i".-.NVZ NV
::i: *;
o o
M A tlx/
\ (et
!#Ft't*Jl$kffi
ilr:,lil
-\
hHLX.*
l.-
o; ^ :
i"i
i*, e,;;;*
Su++'"ft{-ili1tffiH
-.=' "
i*..u'lo W --o=^. \: ;" *:i1V'EIY.Io'qt
i?.1 ,-- ,.
)'
i'..$1",.
'^ o
^o
I ] E ,H B
osi
r J
:i"19,,fl resnrem@ | :":- ;
tHEWlt,^
' nNll \'
,^ |
I o- n-
ro o'o 3
nor.0
2lrBtal
br aE ./
P-*3438
I qfel9.
I.TTTTTTTTF|T'N
toeFV so9
ere0
areoEoeoloeo soell Ireooreo
eoeo \oeoroeJr
eoeo aoeo roeo
-l I
T
I
I I
r l e
ler .eqyt ISW3H rol msrgeib cifemedcZ
This P, C. B. connectiondiagramis viewsd from the foil side.
(SeeeSWAI
yldmeeae 3l/lUT
f,
_YJr/O_1SW3H
e@@l loo@ool l@@o@
S3;\-/E:r:3\-/r3:8
ml
@el ro@@o@ll@eo@
SS;\-lJE=r-,S\JrE:3
{SOOIOXAIyldmsaaeoluboM .f .1 lcirae S
0
( r s q ) $11c
+ yldmsaasH]WOq oT
roetv s@fv
I teooreo Treo (seq
{ yld
) O T L msaasT M O F ] oT
I I
" l
Schematicdiagram{or HEWZItype, r
T h i s P . C . B c o n n e c t i o n i a g r a mi s v i e w e df r o m t h e p a r t s m o u n t e ds i d e .
d
TUNERassembly(AWZ3938)
rgr'rgr = "'"-rA\/-A\'*
r9rOr
"!";"iNV'\Y/;_
6'"'+ " "
o, - . ? ""
osrz - s!. _-o o1o,_oto: :':' ^ '@^ | @. O b
da' ! fr.'Fdndnilr'fror- "i":';":"* l, r-.*-' "
@"",':I "i"i i ":
) !
; l o o o oo o oo o ,o i o l
t o o o
I
o
oY,o.t
l
|
I
|
|
_..^
d 3z
6 ^^ - , s
S
"iF ' I | | - i ^
^ 5 : .. / 4 . | |
> lr n
h ",A .L
/ +, i/ HtVA"to ,o
t y '1' tn\ u !Y o o :
"
N | \J /-,o, o ,o
v :! , l-o" v!
"
;i.'
"jl
( o.o
,69
l R e T o o :: fY t t ^aI
9 ^_A
-
j : 3 : l I 6 - o o o o -o o -o l o '.. 3
i 'o o o - L^
:
106r _ ^ . O -- | ' O'' o
O I O o (O )
O
or o(9: oi O'""b i"
oo {O o,
. : : : |-' "
i^^i "i : ? s-.8"',';. l*^'1' -. "
^
!.
{ O lo ,
H E Z IO N L Y
W
,o
s: L.t .t ; i'*'9-'X;3:*-;'
{o} o' I
T O O\O
"8., oo'u'o o- - -o - ; 8",:
B I ^
;r /-r----,,\ "-" o.-- o "31' p
t.![,U J " .,l^;i'] ;v,,,.@o')
lr o ' r ) - o r o ! ; l;
"l ""0I
c'...
I , oo o
Fi I
-.
1"
o ",r._p.J
;"'"o e.,",o ^
F
.o l vi % r
v . \\
I oo9lo
o o
ol o'!" o? l.e}
' 'l',1-rJ
_.,."_ I L
a l" l_
I S e r i a l F . E . M o d u l e a s s e m b l y { A X O 10 O 4 , 3
Ct:tgig! O
Ae+
(-J]]
86t
2 s e r i a lF . E . M o d u l ea s s e m b l y{ A X O 1 O 0 2 )
A N P 5 1 2 -C
I
lFT.T;FFFT;TTTTT;
T o P O W E Ra s s e rb l y c N 4 ( . } P 2 1 )
n
VR9O2 VR9OI
T , , r q o N T . r : . : - r , r l J ll y t
, r +P32\ 09r7 0 9 r o0 9 r l
I I
I
a 4
ramfor HEWZItype, re{erto page 49.
bly (AWZ3938)
"oi
..* " 'f5*'" I
\-4fO:"*' [,q,_-1i 3,,Xo'"
fO vj j"::":';t I iI ^
h;AH,.[/; l/L",*l-*#jlqi,.,, i
? !, :,
-ig;
" #c.: ffi#, ii--
"'#'m, l*",' ;Fi[.f
[u[ ui:i4il' 11 ]":_
"$lh
o
o o o
t5w l
o
o o o
o
",.%,l 9:r:i-i'lffiff"1'#''ad"*-*,#1" jffij
i"t,
o o o
j{.,,,,b
o o
-.
,-8-:,"i, . i'i'iE3.u:.r=l*i;i$;
*"i
:;:..;.:*-o-;''o'"'iinoo--;o
i3, :,"*:*'l l=jl
"" :y "i",:il,i
-u . ffi':tffi# *ii:,;A""*r'
.ffint, f ",i
i:;,1":1t :i'.".',L_-, dl
":;##''_Fi
Ii+;i}'i.i
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