PIONEER SA-9800 circuit

()rrloNEErr"
STEREO AMPLIFIER
9BOOHG
The basic performance of the HG type is the same as the KU type. The KU type has a wooden cover, while
HG type employs metal. This additional service manual is applicable to the HG type, please refer to the KU type
service manual with the exception of this supplements.
SPECIFICATIONS
The specifications for HG type is the same as the KU
type except for following sections;
Semiconductors
Transistors ....15
Preamplifier Section
TAPE 2 (DlN connector)
REC(Level/lmpedance) .... 30mV/80kilohms
PLAY (Sensitivity/lmpedance) . . . 150mV/50 kilohms
Hum and Noise (DlN, Continuous Power/50mW)
PHONO1MM.
....72d8162d8
PHONO2MM.
....72dB 162d8
TUNER, AUX, TAPE pLAy 1 ,2 . . g0dBl62dB
Power Amplifier Section
Continuous Power Output at I kHz (both channel driven)
T.H.D. 0.002%,8 ohms . . 100 watts per channel
Micellaneous
Power Requirements
220V 1240V , 50l60Hz
PowerConsumption ..... 850W(max.)
Dimensions
. a20(W)x150(H)x425(D)mm
16-17 I 32(w ) x s -2s | 32 (H) x1 63 I a(D\in
Weight (Without Package) . . . 18.0kg (39 tb 11oz)
CONTRAST OF MISCELLANEOUS PARTS
P.C. BOARD ASSEMBLIES
Symbol
Description
KU type
Part No.
HG type
Remarks
PA-L assembly
PA-R assembly
Power supply assembly
EO assembly
Input terminal assembly
Tape terminal assembly
DIN connector assembly
Tape switch assembly
GWH-119
GWH-120
AWR.191
GWF.16
GWX.261
GWX-262
GWS-172
GWH-125
GWH-126
AWR-196
GWF-18
GWX-291
GWX.292
GWX-293
GWS-183
PIONEEFI ELECTFICINIC CCIFIPCIFIATICTN 4 1 Mesuno 1-chon,e, MesL,.o-ku, rokyo 1ss, Japan
U.B. FIONEEFI ELECTFICINICA QCIFTPOFIATION A5 Oxto.d Dl ve. Moonach,e, New Jensey A7O74. U.S A
PIONEEFI ELECTFIONIC (EIJFIOPE N.\,. L'rchagen-Hawen 9, 2O3O A,rcwe.p. E}etg,um
PfONEEFT ELECTFICINIC€i AU€lTFlALlA PYY. LTEI. 178 184 EloL,ndany Road. Elnaes,de. V,.ilon,a 3195, Arrstnat,a
y o FEB. -1979 printed in lapan

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SCHEMATIC DIAGRAM
I
EOUALIZER A!r'Y
GWF-t I I
o25
ozf
o29
o5l
rl\
IINPUT TERIIII{AL I
iarrt Cwx-zgr i
I sr fttE#EmrcE I
f2Jdl; __ e1-1 e-oc I
"*ol*o,',ffi5 oo" j
9
E :i)
PltOxO 2 i
(MMlMC).
r6ffi
rr.ilER (
llFmvl
AUX
I
R57-60 lrl5v)tFl
R6.64 (l/5W'rFJ
R67-76 il/5ftrF)
026
o2a
OT
Ole
Qz,a 2SC26O2
06,8 2SA | il4
0lo 2sa726P
or? 2sct919
0r 2SCl509
016 2SA777
l--ffir=effiiMl--1
arey Gwx-2s2
I
|
: l
ITAPE SWTC}I A...y
fGwS-t83 s5-r -
| $, r^E drra o H o A__l_
[-r*"fw]rffi
Itr I
I n:v P s7- | !a-l
I f-
q
I sr mc | [----f-
o F
f-w--n
?- | "'"'.TI:,,i""

| 2SA995
3 2SA726P
l-- -;- '
| 6FF ^orsr
l - L -
I sr! $SSONiC F|LTEF
^*-"2
|
I SWITCH /2 Ar.'y
J":
__l
I
t
l*#K'-, ^
I
I
AcP or5 (4
l
^CP- OO7
5
E
o aorr""-o
02, !
: xat2oto
oF4 2-rK26 |
I
^Or
fFl,,.^ I t;'
Y
i-
A] 07 2scter4a
09 2SC945A
J.!t3 oru3 2sD712 [#
r (9s
4f
. Dn n2't77 | -
iI

SA.9Elclcl,HGi
NOTE:
The indicated semiconductors are representatiue ones
only. Other alternatiue semiconductors may be used and
are listed in the parts list.
I R€SISTOR,
Indrcatd rn Q, l/4W, !5% lolaranc€ unl6soth.rwrg
!$os zsrszs
d r07 2sa9r2
09 23A7265
qr 2scr885
Q13 25Cr400
0r5,r7 2SA750
;+ors 2scr4oo
0r, 3
05
07
09
o2t 2SA904A
o25 2SA733A
o27 2SC945A
o33 2SCt9r3
o23 025
Dil,t3,t3,17 rst555
ot9,?t,23,25 tsz4fl
o27,8 ts247l
nord k, kO, M. MO. (F). rl%. (G). 12%. lKl. !1096
2 CAPACITORS,
Indrc.td ro c.p-riy {!F)/volt+(V) unl.s oth.rwe
IndcarDn *rrh@r voltry rs 5OV erc.pt 11610lytrc
3 VOLTAGE, CUBRENT,
f! Srgnat volt# .t lOOfl +lOOt/ 8O ouput
El . OC voh4 (Vl at no input sqn.l
V.lue rn ( I tr OC volt# at raid pomr
. OC current ar no Inpur ngnal
€mA
4 OTHERS,
r> . SEn.t rtut€
Oo.Adru:tngPo'nt
Th. A m.tk lound on Fm. componcnl p.rl3 Ind,
c.tes tha rmFri.nca ol lha gfcty l*ror of rh. parr
Th.r.lor!. S.n rcpl-'ng, h $r. to u! p..tr ol
rdcnrral dGn9naton
Lch -.l
SPEAX€R (A)
I
pq6 --l
SP_B
05. 2SC229l
027 029
- o23 2scraeoA F -
rE"e-l
; O29 25A733A
o3r 2sce45A
FnR
A
A
Lcn-_l
RchJ
SPEAXER (8)
I
A ;
o24 2SCr890A
o30 2sA733A
o32 2sca45A f
_rl,
036 2SA9r3 l r ,-l
)l
I
[e'!iY/qd
AT SP IW
ot2, t4, t6, t8
D2O,22,21
026,26, 30
ts247l
rs247l
l-l
I
or,2 2sc945A
Q3 zscrg€5
Dr,2,3 rS247l
04 MZ-r50
D5 MZ - OAI
SXITCHES:
Sl: PHONO INTERFERENCE FILLDR OFF-ON
Sl3: SUBSONIC FILTEn 9II- I 5nz
2ao
A
5r7
5I7 LINE VOLIAGE SEI€CIOR
zry- 2.oy
^xx-o57
s2: FUNCTIoN SII: HIGI FILTER
pHoNo 2(Mc)-pHoNo 2(w)-pHoNo I(W)-TUNiF-AUX sl5: METER
sl: cARTRrocE LoaD (c) s16: SPEMER
m-8kHz
!!JSE!-DrH
qEE- A- B- A+B
!l!!-200p-
l00p-4 0 0p- 500p
22 0V-:40v
gEE-ON
lm-l0k-25k-50k-f00k The underli,ned indicat€E the suitch position.
r -9!r-2
55: TAPE DUPLICATE
57: MODE
I'2-9II-2'r This is the'basic schematic diagram, but the actual
crrcuit may vary due to improvements in disign.
ac220l
9AON'
58: TUTING
ruv-sTEmo- L+ R- l- R
m- -20d8
9Ir-on
l00k-20082
qII-ON
2 .skHz-skaz
5

P.C. BOARD ASSEMBLIES
Input Te
Power Supply Assembly (AWR-I961
EO Assembly (GWF-I18)

sA-9BOO/HG'
Input Terminal Assembly
(GWX-2911
Tape Terminal Assembly
(GWX-292)
DIN Connector Assembly
(cwx-293)

PA-L Assembly (GWH-I 25)
PA-R Assembly (GWH-I 26)