Kenwood KTC-SR901 Service Manual page 5

A B
Q Q
PC BOARD (COMPONENT SIDE VIEW)
3 7 6 3 1 5 1 5 0
1
X14-6900-10 (J74-1312-12)
TO HEAD UNIT TO CHANGER
R211
R218
J2
13 R217 4
9 12
R216
5 8 12
R215
1
4
L44 L45
SO SI SCK GND
2
R140
D37 D38 R185 R141
Q15 D41
CP7 CP8
100 76
D21
EB EB 1
D22
C170 R82 R121 IC1
R70
C197
R75
D24
8 5
D25
EB
25
IC22
R90
26 50
VPP
RST C239
R89 X1
1 4
DAP
C171
RST
R72
C194
C196
GND
R73
C177 4.2V R133
DIS
C184
C181 MDI
C88
C87
3 MDO
SSN
R22
25
SCK
R23 26
C113 R24
C117
A2
44 1
176
45 IC7
R45
C240
R44
C126
50
L5 51
C99
L4
IC9 C98
R40
R31
R30
C105
C127
R46
88 133
C169
T E 89 132
L C116 1 3 9 4 2 2 9 6 5 1 3
C112
C124
C143
4
IC19
IC15 C168
C144
IC12
C140
L10 R60
S G
C142
2
CN1
1
D
CN4
J1
5
FUSE 3A
BATT GND
X14-6900-10
Ref. No IC1 IC2 IC3 IC4 IC6 IC7 IC9
address 2B 3E 2D 2C 3C 3B 4B
6
Ref. No Q3 Q10 Q14 Q15 Q17 Q18
address 5D 5B 3B 2B 2B 2A
w w w
.
7
Refer to the schematic diagram for the values of resistors and capacitors.
C D
D45
C225
1
8 5
C226
9
C65 C61 C60
13
C224
25 1
J3
26 100
37 36
D46
C55
C296
IC4 C57
C53
C52
50 76 C56
51 75
75 C62
C63
C64 72
1
C59
C214 C253 IC3
73 144
C81 C82 C83 C85
VDD 88 45
44 C54
51 89
C37
C50
C36
C38
C51
109 C40
108
A1
IC6
C86
12 17
1
100
132 1
133 176
C70 C71
C72
L12
76
75
C97
C96
11
C132
C159
C158
C156
C146
C162
1
C165 C149
C153
C164
IC14
L11
O G I E B
IC16 Q3
TERR
ANT
IC12 IC14 IC15 IC16 IC19 IC22
4A 4D 4B 5C 4B 3A
x a o
y
i
E F
PC BOARD (FOIL SIDE VIEW)
8
X14-6900-10 (J74-1312-12)
2
1
CN5
C35
C301
C34
100 76
1 75
R6
IC2
C14 C43
C15 C42
C45
C17
C11
C16 C44
25 51
C13
26 50 R1
C27 C24 R5
C30
C22
C29 C21
C26 C23
Q Q
3 7 6 3
SAT
u 1 6 3
.
5 6
G H
2 4
9 9 8
O I
R160
G
C231
R179
R11
R173 3 1
C251
R175
R176
4 5
C252 R187
C230 C218
R178
R186
R180
R171
1 5
3 4
IC34
Q51
D51 D50
Q50
C300
C41
R17
C39
C257
C209 C208
54 28
R21
IC5 C137
C95
22
1 27
C207
C206
IC8
R62
IC17
6 5 23
G C241
D 10 1 C136
S
C157
S D G
1 5 1 5 0 8 9 2 4
C298
IC18
D10 10 6
C130
1 5
C166
C152 C131
R52
IC13
O G I
X14-6900-10
Ref. No IC5 IC8 IC10 IC11 IC13 IC17 IC18 IC23 IC24
address 3H 3I 4J 3I 5G 4H 4H 3J
Ref. No Q1 Q2 Q11 Q12 Q13 Q19 Q21 Q50 Q51
address 4J 4J 4I 4H 4H 3I 2I 3I
m
c o
I J
2
9 9
C222
L46
L48
DGND
UART
+5V
L47
FRAME
C220
L42 RATE
RST
AGND BUSRST
MUTE
R181
Rch STBY
SDAT
LRCLK
R129 R183
Q21 SCLK
R100 MCLK
R184
R139
R182 C201
C200
R124
R119
7 1
R92 R87 R84 R81
IC30 C192 R88 C188 C186
R99
C211
4 1
8 14 C190
8 1
1 Q19/D19 IC25 IC24 C187 C185
2
C189 R83 R80
DAPRST
9 16
3 4 5 8
C182
C213 C191 R85
R95
4 1 R91 R86
R94 C180
16 9
IC32
IC23
MDI
5 8 DGND
MDO
1 8
SSN 4.2V
C122
DIS C120
C115
44 23
SCK
1
R43
IC11
R116 R42
R118 R41
1 22
C118
R49
C139 R39
C121
44
24 1
R33
R32
9 8 2 9 9
IC10
R58
R57
C178
R51
Q1
R50
25 48
S G
R38 C114
C138
R61 R188
D
D
G S
IC25 IC30 IC31 IC32 IC33 IC34 IC35
3J 3I 3I 3I 3I 2H 2H 2G
2I