Kenwood TKR-740 Service Manual page 81

A B C D
TKR-740
PC BOARD
1
2
CONTROL UNIT (X53-3882-71) (A/ 4) Foil Side View (J72-0668-11)
3
4
C6
R6 R5 C3
R4 IC38
4 3
R3 C14
5 5 1
R2
IC1
1 5
4
3
C2
6
7
8
C61
R38
9
10
11
Component side
Layer 1
12
Layer 2
Layer 3
Layer 4
Foil side
13
83
14
E F G H
R164
C154
C184
R165 C107
R166
C161
C162
C206
C106
100
C158 R168
1
C170
C135
C169
R161
R110
R262
IC18
R182
C179 R159
R214
R185
R218
R215
R186
R157
25
C176 R226 R216
C178 R184 R266
R225
26
R250
R221
R106
R222
C134
R223
C193
R174
C174
R177
R178 C173 R173
C18
C28
C27
DTC363EK NJM4558E
5
B
E
8
C
DTC114EUA
DTC144EUA
ADM232LAR
9
OUT
16
IN
1
GND
I J K L
C213
11 10
IC15
76
20 1
C209
C203
75 C208
C194
11 10 IC10
O
C187
G
IC16
I
IC46
1
5
20 1
R158
3 4
R237
CP10 IC48
IC47
1 5
51
1 5
3 4
3 4
50
CP11
CP15
CP14
C214
R27
C30 C24
C31
C21
C29
DA204U 30622M4-103GP BU4053BCF
51 50
2
1 75 26
16
4 76 25
3
100
1
TC7S00FU
1
TC7S32FU
AT29C020-90TI RH5VL42C
TC7S66FU
32
17
1
2
3
8
1
5
4
16
84
M N O
X53-3882-71 A/4
J72-0668-11
R73
R72
R74
C212
D21
D18
C153
R138
R140
1 24
1
IC33 R146
R145
12 13
R147 8
C140
C177
R148
D3
D34
C138
R130
D30
5
R129 1
3
D25
4
D17
9 8
IC42
16 1
BU4094BCFV ADM202EARW
9
9
16 16
8
8
1
1
M62364FP TC74VHC245FT
13
20
3 24
12
1
1
P Q R S
CONTROL UNIT
(X53-3882-71) (A/4)
R e . f N O . A d d e r s s
C I 1 6 C
C I 7 7 K
C I 1 0 6 L
C I 1 4 5 N
C I 1 5 5 J
C I 1 6 6 J
D27
Q10
C I 1 8 6 H
R307
C I 2 2 5 E
D26
C I 3 1 7 E
D31 C I 3 3 8 N
C I 3 4 8 E
R125
D35
C I 3 5 8 J
D39
C I 3 8 5 D
C I 3 9 8 P
Q12
C I 4 2 9 O
C I 4 6 7 K
C I 4 7 7 K
C I 4 8 7 L
C I 4 9 9 P
Q 2 5 D
D24
Q 8 9 P
D14
Q 9 9 P
D19 Q 1 0 3 P
Q 1 1 5 C
D37
Q 1 2 5 Q
D13
D 1 5 L
D28 D 3 8 N
D 4 9 N
D32
D 5 7 O
D36
D 6 7 Q
D6
D 7 7 O
D38
D 8 7 Q
D8
16
D 9 8 Q
D9
D 1 0 8 Q
IC39
D 1 1 9 Q
9
D10 D 1 2 8 Q
D 1 3 6 P
D12
D 1 4 6 P
D16
D 1 5 9 Q
D11 D 1 6 9 Q
D 1 7 9 P
D20
D 1 8 6 O
D15 D 1 9 6 P
D 2 0 9 Q
D 2 1 5 O
D 2 2 9 P
D 2 4 6 P
D 2 5 9 O
D 2 6 4 Q
D 2 7 3 Q
D 2 8 7 P
D 3 0 9 O
D 3 1 4 Q
9
D 3 2 7 P
D 3 4 8 O
D 3 5 4 Q
8 D 3 6 7 P
D 3 7 6 P
1
D 3 8 7 P
D 3 9 4 Q
11
10
1