Kenwood KRC-597 Service Manual page 17

F
R252
47K
C255
0.47u50
+
POWER
5.0V
IC
R314
∗
100K
IC4
D303
R315
8.8V
100K
C304
0.01
∗
C260 C262
B
0.047 0.047
D258 D256
0V
IC8
5.0V 1
VOUT
4
5V
VSS
0V
3
2
NC
VDD
5.0V
RESET IC
25
5V
0V 26
26 REMO
27
27 R-CLK
28
28 LX-REQS
5V
29
BU-DET 0V
30
30 EJECT
31
31 KEY-REQ
5.0V 32
VDD
33
RESET
34
33 34 EQMUTE
35
35 DOLBY
36
36 MUSIC
37
5V
NC
0V
38
NC
39
NC
40
NC
5.0V
41
NC
42
42 L-DATAS
43
43 L-DATAL
44
44 L-CLK
45
45 PLL DATA
46
NC
47
47 PLL CLK
48
NC
49
NC
50
NC
5V 5V
0V 0V
G
87
R254
1.5K
C256
22u16
+
1.4V
8.8V 8.8V
C264 C266 C259 C261
0.047 0.047 0.047 0.047
D254 D252 D251 D253
X2
5V
0V
0-5.0V
5V
0V
5V
5.0V
0V
5V
0V
5V
0V
5V
0V
5V
0V
IC1
SYSTEM u-COM
5V
0V
5V
0V
5V 5V
0V 0V 0-5.0V
∗ ∗
R412 R411
100K 100K
R417
100K
∗ ∗
R421 R420
100K 100K
H
J1
TH1
470
C258
TEL MUTE
D270
1u50
+
D269
R255
100
8.8V
∗
C263 C265
B
0.047 0.047
D255 D257
29
24
C409
47u6.3
+
C410
0.01
5V
100 5.0V
2.5V
DAVDD
5V
0V 5V
99 0V
SW5V 99
5V
98
5V
0V EN1 98
2.5V
97
0V EN3 97
96
EN2 96
5V
95 0V
0V DAVSS
5V
94
0V METAL 94
93
F/R 93
5V
92
0V MS MODE 92
91
PANT-DET 91
90
PCON-DET 90
5V
89
0V ACC DET
88
5V
NC
5V
87 0V
0V P-STBY 87
5V
86
0V P-MUTE 86
85
IC2 SCL 85
5V
84
0V IC2 SDA 84
5V
83
0V AFS 83
82
MUTE 82
5V
81
0V LX-RST 81
80
LX-REQM 80
5V
79
0V LX-CON 79
78
LX-MUTE 78
5V
77
0V 5V
R DATA 77
0V 76
R QUAL 76
5V
0V
5V
0V
I
KRC-597/597Y
DC-IN SP OUT
9 10 11 12 13 14 15 16
8 7 6 5 4 3 2 1
3300u16
∗
R31
10K
7
∗
R33 47K Q3
ACC DETECTION
D4
R9 33K
89
Q3
C5
0.01
Q1
D2
R5 R4
D3
10K 20K
29
Q2
Q1 Q2
SERGE BACK-UP
DETECTION DETECTION
L
89
R62 C56
2.7K 0.47
4.1V 11
G2FB
R63 C57
4.1V 12
G1FB
33K 4700P
0.3V
13
MSTC
R61 47K
R78 4.7K
14
36 MSOUT
C58
10u10
15
+
NC15
R79 10K
16
35 NRSW
R80 4.7K
17
34 MUTESW
C54 10u10
+ R64
R81 4.7K 1K
18
94 TAPESW
R82 1K 19
93 DRSW
R83 1K
20
92 MSMODE
5V
0V
C59
0.47
Q54
22K
MSTC SW
22K
Q51
Q51
MAIN MOTOR
SW
1 D51
10K
MAIN MOTOR
SW
2
10K
Q52
1 2
CN6
X14-9182-71 (2/3)
J
F1 10A
FUSE
Q5 Q6
POWER P-CO
ANTENNA DETE
DETECTION
C1
+
D22 D23
C2
D24
0.01
R22 R23
D1
4.7K 4.7K
D25
C7 C8
0.1 0.1
R15 R18
39K 39K
Q5 Q6
R16 R19
100K 100K
∗
A
C60
47u16
+
C76
0.01
5V
Lch
0V
IC9
5V
0V
EQUALIZER
AMPLIFIER
Rch
SUB MOTOR DRIVE
0V
IC11
C75
0.22
6 5
PGND SGND
4.0V 7 4
1 OUT2 IN2
8 3
NC8 IN1
0V 9 2
2 OUT1 NC2
10 1
NC10 VCC
3 4 5
17