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A B C D E
KDC-9023R
/PSW9524/X969
1
PC BOARD (COMPONENT SIDE VIEW)
ELECTRIC UNIT X25-964x-xx (J74-1473-12)
CN1
CN2 12 2 IC4
11 1
2
1
R263
2 24
R262
R264
C100
9 16 1 25
2
8 1 L1
R48
R46
R47
J1 D1 C277 C272 C274 C273
Q24 C215
Q13 C205 R29
E
Q12 Q11
BE R49
C275 C27
D14
R42
D15
C203
C204
B
BE 5 4
MUTE
C297
C298
IC18
W3
R14
Q8 R6 8 1 22 12
C250
BE
Q7
E
1 28 23 11
I GO
IC2
B
EB
Q6 C264 C265
R7 R244
IC3 8 5
C299 C259 CN3
3
BE BE
IC5 33 1
R34
C41
Q1 C3 D504
IC13 Q208 34 44
E
Q207 C269 C268
D17
C300 R508
C219
C8
C218
R33 1 4
R245 R503 16
B
R221 15 C234 15
C240
EB 14 R504
Q25
8 5
D16
C267 Q203 R219
BE BE
R609 24 13 C238
Q9 IC11
Q204
25 12
R32
E
C5 C201 C202
R608
C266 IC6 C233
C6 1 4 R220 R217
R218
B
R232 36 1 R205
Q26 8 5 CLK DATA
R624
37 48
R623
C229
EB C270
BE BE
C9 Q206 C241 C226 X25-964x-xx
IC12 C227
C228
C223
C222
IC20
C43
Q205 IC Q Address
R35
R625 R626
C42
C700 5 4
1 4 R233
1 5D
R170
4 8 1 TEST
C271 R164
C30 R184
R180
2 3D
R169
R167
C48
Q15 R183 R163
R162
R172
R171
E B 3 3A
R179
D7 C31 R101 R160
25 1 R159
26 100
4 2E
L102
X2
6 5 4 D8
R153
5 3D
R102
R152
X1
IC1
6 4D
C36 R186
C101 R148 11 3C
R144 R145
R106 R143
R108 50 76
12 4C
R107 R142 R146
R109 51 75 R136
R141 13 3C
R526
R119 R121 R123 R134
5V R525 R135
R120 R133 18 3B
R131
R127
R129
R122
5 CN4
20 4C
RST
1 3A
6 3B
24 1
7 3A
8 3A
1 2 3 9 3A
1 28
CN6 11 2A
A2
12 2A
C18 L2 C12 CN5
15 1 13 2A
6 15 4C
C16 C10 24 2B
P1
25 3B
L3 C23
26 4B
203 3C
204 3C
205 4C
206 4C
207 3C
208 3C
7
Refer to the schematic diagram for the values of resistors and capacitors. 305 4F
20
F G H I J
KDC-9023R
/PSW9524/X969
1
SUB-CIRCUIT UNIT SWITCH UNIT
X16-2100-10 (J74-1477-12) X16-2170-10 (J74-1482-12)
D12
S15
S14
24
D13
TUN
25 W2 2
C279
S9
R261
S10
6
A1
D6
C275 1
C278 C206 L7
S5
5
FM
S4
D5
CN3 3
S19
AM
CN7
S3
4
2 1
2
1 C314 L305
D4
RST
S20
L307
S8
R308
3
Q305
R307
D9
C311 BE
D3
SCRL
R306 R305
S12
L306
C502
X3
24
4
S13
D8
2
D14
D2
AUTO
S7
D7
S18
1
Q1
EB
D15
D1
Q3
D11
BE
SRC
S17
D20
MENU
Q2
S2
BE
5
D19
CONTROL
VOLUME
S21
D18
ATT
S1
ED1
D16
1
6
S11
3 4
D7
S6
IC9
D10
1 2
D17
X16-2100-10 X16-2170-10
IC Address Q Address
9 6H 1 5J
7
2 5I
3 5I
21
K L M N O
KDC-9023R
/PSW9524/X969
1
PC BOARD (FOIL SIDE VIEW)
ELECTRIC UNIT X25-964x-xx (J74-1473-12)
D211
D209
D210
D212
D214
D213
D215
D216
C2
BU
TH1
2 R260
R259
D301
D208
C276
GND
R31
D207
C214
R257
R256
L201
Q23
C209
R201
C210
C208
GND
R204 EB
D206 D205
FM+B Q202
C207
EB C217
D13
D12
D10
D501 BE C216
C303
8 5
Q201
AM+B C213
C211
R502