Pioneer KEX-900 Service Manual page 50

Centrate component car stereo equalizer/cassette deck
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G.EP.C.BOARD
1C861,852 : KHA207
7.5V
TCS187AF
1c851
R673
RE72
RE71
RETO
(1)
R674
C853
=
EEilae
at
REAR L-ch
REAR R-ch
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ro an:
+
|
@)
VOLUME UNIT (CWMI181)
ILLUMI +B
ILLUMI 68
as
14.4V
~"T
us1040M, 188176 ie
_ _ |
or 188133
1
|
:
ET ll
717
pre
0.A.BAL
BALANCE
1
17:
7
wu y] Q720
9721
|usto4om,
=
5.6V
Q727 :
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a719
ts
eis
188176 of [————<*
2SC2458 or 2SC1740S
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1%
18S133
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ayg2
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18133
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R793
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47
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ugh
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c739
0724
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2SC2634NC
100/16
:
:
0707 : HZ6LC1 or HZ6LCZ
0723 :
0724 ;
ESSE
IR
1
eae
44215
aa
at
ERAIS-O2VH
MTZIWWA or HZ51181
|
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0714 : HZ91.81,HZ9L82 of MTZ9R1VAB
|
J
|
5
25C2458 or 2SC1740S
t
:
'ST
'ST
>
ba
DA
DA
:
cK ——
cK
:
:
-————<POWER AMP MUTE
$$
—$_——_—_—___—__—_———4POWER AMP MUTE
z
«BEEP )—
EP
aaa
aoa
709,710 ; US1040M, 1S5176 or 185133
:
=
0709
D710
:
:
:
2
IC706 : KHA703
IC707 : TC40518F
1C708 : HA17358
7
.
D703, 704 ¢
US1040M, 1SS176
or 1881
€720
0.001
| IC705 : M51304L
Level Shifter
c72s
100/16
Ic708
Ic708
a
Comparator|
Gi)
>
4
| ~————_-»
R764
L_@)
(]
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eee
he
ry
Ea
SIDES (OES NE) Cay ROD AR ERS CE
aa (LO
Multiplexer
LOGIC
UNIT
CHD sack uP +B
:
ae
mH
14.4V
'
0.022
|1000/16
O
1C
cNp
a
IC711: pPD453886
Q732 : DTC1I24ES or UN4212
{-——}—-<wec
————<MPB
——-—_uqu—-
ex"
—r
KS
rs
|
————{MPA
=
Aa
——{K4
EAT
el
ee
|
| nr2g
22k | |
——<KST2
443
pe
eae
——— AK 2
a
Pe
ee
ee eee
oe
a
eee
(SO
Sea
ae
a
2802486 or
aes
a
2sci740s
cI
10/16
K)
*,
(Py ivew
S
aren
SS
Q724
R782
33k
ae
o719
0726 : ERA1S-O2VH
REMOTE CONTROL UNIT
(SOLD SEPARATELY)
SWITCHES
© SWITCH P.C. BOARD
S1: CST SET SWITCH ou... .cccceseesesseeeee ON — OFF
D
$2: CST IN SWITCH.
... ON — OFF
SB: 70uS SWITCH oo... ccecccscecsesesssssesceeeeeee ON (1200S) — OFF (70uS)
O711, 712 ; US1040M,
1$S176 oF
3
188 133
5.6V
Qe
J J
he
fo
'SOLENOIDIDOOR)
;
Con 07e
XP 1003
BAND DIR/REL
EQ SET
$954~956 : CSG-253
$951~953 : CSG-255
REMOTE CONTROL
ra
J
VOLUME UP/DOWN
aig yp
R.SWITCH
UNIT
L.SWITCH
UNIT
C.SWITCH P.C.BOARD
Fig. 14

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