Service Manuals, User Guides, Schematic Diagrams or docs for : Pioneer Audio SX-900 pioneer_sx-900_990_sch
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sx-s|90
AM /FM STEREO RECEIVER
sx-990
ROUND LABEL
FSAW FWl/ FVZW KCW KUW NBW
UNIT
TUNERUNIT
FM FRONTEND W1-030 W l-028 AWB- 1 W r - 0 2 8 W 1 - 0 2 8
OO Wi-028
FM IF UNIT W2-03i W2-032 wr2-032 W 2 - 0 3 2 W 2 - 0 3 2 W 2-032
M P XU N I T W 3- 026 W 3 - 0 2 6 W J - U Z O W 3-026 W 3-026 W 3-026
AM TUNERUNIT W4 - 0 0 8 W 4 - 0 0 8 w14-- 008 W4 - 0 0 8 W 4 - 0 0 8 Vv - 0 r 5
4
MUTING NIT
U w l8 - 0 2 6 W 8 - 0 2 6 W8- 026 W8-026 W8- 026 W 8-026
H E A D M PU N I T
A w 5 - 0 4 9 W5 - 0 4 9 W5 - 0 4 9 W 5 - 0 4 9 W 5 - 0 4 9 W5-049
C O N T R O L PU N I T W5 - 0 7 9 W 5 - 0 7 9
AM W5- 079 W5 - 0 7 9 W5-079 W5-079
M A I NA M P U N I T Vll15-060 W5 - 0 6 0 W5-060 W5-060 W5-060 w23- 06
0
POWER SUPPLY UNIT l'ilt6-022 W o - u t l Wo-vll W 6-022 W 6 - 0 2 2 iv16- 065
SWITCH UNIT w l 5 - 0 8 1W 5 - 0 8 1 w l5 - 0 8 1 W 5 - 0 8 1 W 5 - 0 8 1 wl5-081
SWITCH UNIT w l5 - 0 8 2 W 5 - 0 8 2 w l 5 - 0 8 2 W 5-082 W 5 - 0 8 2 wl5-082
SWITCH
UNIT
TONECOLOR
UNIT
CONTROL UNIT V v l 5 - 0 8 0w l5 - 0 8 0 l l l 1 5 - 0 8 0 w l 5 - 0 8 0w l5 - 0 8 0 w i5 - 0 8 0
M I C A M PU N I T
REVERBE AMP UNIT
REVERBE
UNIT
INDICATORUNIT w l 8 - 0 1 2w t 8 - 0 1 2w l 8 - 0 1 2wl8- 012 I i \ l l 8 - 0 1 2 w l 8 0 1 2
-
37
Model SX-990
oa
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38
sx-990
SX-990 FVW model
for
c.G
l-l
I
oX a .'1 \9
4 u Y +
r
i r
| (el _{-;/ i.-
; : c d E d
r :tr o
,/:
lEl
d d d = = Y i u < 4 < <
EEEe9- 56;;il
-
. : - -
J
' '
EI 3 .S;\
- -
+ R||
ed_B
0 9 0 - s l M LINN dhV N1VI.I
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t -
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= ==
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dB
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=? (aY^u==
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] INN
* oo e
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o o =
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39
sx-990for KCW model
' ut|
Mz/e z b
ldl
Itl -; t8l vl=
l" = l>l 3E6
6- tIt
o2^"o --. *@"12'@
3
l;l
til
{ilsffi:;'gF
EI : 9el0.00r
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;
< i-- = o9o-srM llNn d!'lv Nlvll
5 R
s i
- : _ - t
o ii< 6
VUOI NI-NIVH
b E ' E =
z ^^ ^
090-9rM !Nn 10urN03
? 6LO-slM llNn dlv 10urN03
o :- 9oe (s)voos =
++
d oYl
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r E
! d
z =
x$
J ; =
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5 6
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0V3H
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=
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e 9 S ? E T 3
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O - ) E e o
- < < o < s
_ ! r o F r g
't3N I ] N N V H JI H 5 I T p : c c o o -
NVHl -Li3-l b F - > - = '
40
sx-s|90
SX-990for KUW model
aq
* - i , , < 5 o <
\ n = : r \ 8 6 - n t n
- i i o o o
E S J j : t @,trl-o tl3; 6@-"u^@
E F f r Z = E2 * * * i i
. : TJ
7--5tLt
-:e030;3e030
3a;;;;
t;|
E
t
^ . t-l
25K1sYGR O OPO 1 7 ,
2SK33DE 0 0 0P I
3 S K 2 2 G R 2 0 Qt 0 0 0 P
1 I
Cre I
1000P I
Dr I
I 1s351 I
I -J
;MIF UNIT
FH IF UNIT
i, TA?060P 0, TA'060P a" TA?060P 04TA'I060P
.t+
t2 Tt3 041
.T
ot t5v
R 6220K
9x 9 t
E )
l
a+
3 O
@' OUT E
4s
F M l F U N I T f o r F V W ,F V Z W , K C W ,K U W ,N B Wm o d e l
FM IF UNIT
w 1 2 -0 3 2
a, TA?060P o, TA?060P 03TA.l06oP 04TA106OP
j1r_^ T3 TqJ-041 ls|8s :U[sg-!1,0
:"-!_I:! J
2
I
l+
3 O
OUI E
MPXUNIT
M P XU N I T
w 1 3 -0 2 6
t/iilI iI
t
ttltrl fl
'I
-rto O
46
sx-s|9cl
T U N E RU N I I
012sc461 0425C460
D?'1N60
032SC450
for NBW model
$,14-015
P
--t--- 14V
.-
t
o
"^T
.'l
o s2 5 0 4 6 0
47
M U T I N GU N I T H E A DA M P U N I T
HEADAMP UNIT
MUTING NIT
U
- 026 -
$r15 049
wt8
0r 2sc458LG 03 2SC458LG - - - - - - - - - ' i
- - 2SC458LG
as
r--------
t l
I
I
I i, Jl;
c,'.$oP - / > |
^ | i
I
I I
Cr c ,sl0lr5
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r
t
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x
5 E
s -l-
Rr 330K
*
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+ et F
I
I
f- I
. - o l e
ro-dP d+ | ,! ; - l I
R r 210k R r22K I
I
I 001K, 0003 I
I I
I Rz s 2 2 \
I
I I
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