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F
POWER
IC
R314
∗
100K
IC4
R313
04
D308
D303
100K
R315
07
100K
C304
0.01
C6
0.01
D403
5.0V
1
NOISE
BUFFER
5.0V
R205
25
2.2K
6
26
27
28
30
31
33
42
43
44
CAUTION : For continued safety, replace safety critical components only with manufacturer's recommended parts
(refer to parts list).
Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance
!
measurements shall be carried out (exposed parts are acceptably insulated from the supply circuit) before the
appliance is returned to the customer.
• DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations
between individual instruments or/and units.
G
R252
47K
C256
C255
22u16
0.47u50
+
+
5.0V
8.8V
8.8V
∗
C260
C262
C264
C266
B
0.047
0.047
0.047
0.047
D258
D256
D254
D252
0V
IC8
1
VOUT
5V
4
5V
0V
VSS
0V
3
2
NC
VDD
RESET IC
5V
5V
0V
26
REMO
0V
5V
27
R-CLK
0V
28
LX-REQS
5V
29
BU-DET
0V
5V
30
EJECT
0V
5V
31
KEY-REQ
0V
5.0V
32
VDD
5V
33
RESET
0V
34
34
EQMUTE
5V
35
35
DOLBY
0V
36
36
MUSIC
37
5V
NC
0V
38
NC
39
NC
40
NC
5V
5.0V
41
NC
0V
42
L-DATAS
43
L-DATAL
5V
44
L-CLK
0V
45
45
PLL DATA
46
NC
47
47
PLL CLK
48
NC
49
NC
5V
5V
50
NC
0V
0V
∗
R412
100K
5V
5V
∗
0V
0V
R417
100K
∗
R421
100K
H
87
TH1
470
R254
1.5K
C258
D270
1u50
+
D269
1.4V
8.8V
8.8V
C259
C261
C263
C265
0.047
0.047
0.047
0.047
D251
D253
D255
D257
29
X2
0-5.0V
5V
2.5V
DAVDD
5.0V
5V
0V
SW5V
5V
5V
0V
2.5V
0V
5V
0V
DAVSS
5V
0V
METAL
5V
0V
MS MODE
PANT-DET
IC1
PCON-DET
SYSTEM u-COM
5V
0V
ACC DET
5V
0V
P-STBY
5V
0V
P-MUTE
IC2 SCL
5V
0V
IC2 SDA
5V
0V
MUTE
5V
0V
LX-RST
LX-REQM
5V
0V
LX-CON
LX-MUTE
5V
0-5.0V
0V
5V
R DATA
0V
R QUAL
5V
0V
∗
R411
100K
∗
R416
100K
∗
R420
100K
I
KRC-594/V/Y/YV
DC-IN SP OUT
J1
9
10
11
12
13
8
7
6
5
4
∗
TEL MUTE
7
R255
∗
R33 47K
Q3
ACC DETECTION
100
D4
89
Q3
C5
0.01
Q1
R5
10K
29
Q2
∗
B
Q1
Q2
SERGE
BACK-UP
DETECTION
DETECTION
L
89
24
C409
47u6.3
+
C410
0.01
R62
2.7K
R63
33K
R61 47K
5.0V
100
36
5V
C58
10u10
99
0V
99
98
EN1
98
97
35
EN3
97
96
EN2
96
34
95
0V
C54 10u10
94
94
93
F/R
93
94
92
92
93
91
91
90
92
90
89
C59
88
5V
0.47
NC
87
0V
87
86
86
85
85
84
84
83
AFS
83
82
82
81
81
80
80
79
79
78
Q51
78
77
MAIN MOTOR
77
76
SW
1
76
MAIN MOTOR
SW
2
5V
0V
X14-9182-71 (2/3)
J
F1 10A
14
15
16
FUSE
3
2
1
Q5
POWER
ANTENN
DETECT
C1
3300u16
R31
+
3
10K
C2
0.01
D1
R22
4.7K
R9 33K
C7
D2
0.1
R15
R4
39K
D3
20K
Q5
R16
100K
C56
0.47
4.1V
11
G2FB
C57
4.1V
12
G1FB
4700P
0.3V
13
MSTC
5V
0V
R78 4.7K
14
MSOUT
5V
15
+
NC15
0V
EQ
R79 10K
16
AM
NRSW
R80 4.7K
17
MUTESW
+
R64
R81 4.7K
1K
18
TAPESW
R82 1K
19
DRSW
R83 1K
20
MSMODE
5V
0V
Q54
22K
MSTC SW
22K
SUB M
Q51
0V
IC1
C75
D51
0.22
6
PG
4.0V
7
1
OU
8
10K
NC
0V
9
2
OU
10K
10
NC
Q52
1 2
3
4
CN6
15
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