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F
QQ
3 7 63 1515 0
R314
100K
R313
04
D308
D303
100K
R315
07
100K
C304
0.01
C6
0.01
D403
1
TE
L 13942296513
NOISE
BUFFER
R205
2.2K
6
www
.
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
+
POWER
5.0V
IC
∗
IC4
8.8V
8.8V
∗
C260
C262
C264
C266
B
0.047
0.047
0.047
0.047
D258
D256
D254
D252
0V
IC8
5.0V
1
VOUT
5V
4
5V
0V
VSS
0V
3
2
NC
VDD
5.0V
RESET IC
25
5V
5V
0V
26
26
REMO
0V
27
27
R-CLK
28
28
LX-REQS
5V
29
BU-DET
0V
5V
30
30
EJECT
0V
31
31
KEY-REQ
5.0V
32
VDD
5V
33
RESET
0V
34
33
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
42
L-DATAS
43
43
L-DATAL
5V
44
44
L-CLK
0V
45
45
PLL DATA
46
NC
47
47
PLL CLK
48
NC
49
NC
5V
50
NC
0V
5V
5V
0V
0V
x
ao
u163
y
i
H
2 9
8
87
R254
1.5K
D270
+
1.4V
8.8V
8.8V
C259
C261
C263
0.047
0.047
0.047
D251
D253
D255
29
X2
Q Q
3
6 7
1 3
0-5.0V
5V
2.5V
5V
5.0V
5V
0V
0V
5V
2.5V
5V
0V
0V
5V
0V
5V
0V
IC1
SYSTEM u-COM
5V
0V
5V
0V
5V
0V
5V
0V
5V
0V
5V
0V
5V
0V
5V
5V
0V
0-5.0V
0V
5V
0V
5V
0V
∗
∗
R412
R411
100K
100K
∗
∗
R417
R416
100K
100K
∗
∗
R421
R420
100K
100K
.
I
KRC-666/G/R
9 4
2 8
DC-IN SP OUT
J1
9
10
11
12
8
7
6
5
TH1
470
C258
TEL MUTE
1u50
+
7
D269
R255
∗
R33 47K
Q3
ACC DETECTION
100
89
Q3
C5
0.01
Q1
29
Q2
∗
C265
0.047
B
Q1
D257
SERGE
DETECTION
L
89
24
C409
47u6.3
+
C410
1 5
0 5
8
2 9
9 4
0.01
5.0V
100
DAVDD
5V
99
0V
SW5V
99
5V
98
0V
EN1
98
97
EN3
97
96
EN2
96
5V
95
0V
0V
DAVSS
94
METAL
94
93
F/R
93
92
MS MODE
92
91
PANT-DET
91
90
PCON-DET
90
89
ACC DET
88
5V
NC
87
0V
P-STBY
87
86
P-MUTE
86
85
IC2 SCL
85
84
IC2 SDA
84
83
AFS
83
82
MUTE
82
81
LX-RST
81
80
LX-REQM
80
79
LX-CON
79
78
Q51
LX-MUTE
78
77
MAIN MOTOR
R DATA
77
76
SW
1
R QUAL
76
MAIN MOTOR
SW
2
5V
0V
m
co
X14-9180-2x (2/3)
J
9 9
F1 10A
13
14
15
16
FUSE
4
3
2
1
Q5
POWER
ANTENN
DETECT
C1
3300u16
∗
R31
+
3
10K
C2
0.01
D1
R22
4.7K
D4
R9 33K
C7
D2
0.1
R15
R5
R4
39K
D3
10K
20K
Q5
R16
Q2
100K
BACK-UP
DETECTION
2 8
9 9
R62
C56
2.7K
0.47
4.1V
11
G2FB
R63
C57
4.1V
12
G1FB
33K
4700P
0.3V
13
MSTC
R61 47K
5V
0V
R78 4.7K
14
36
MSOUT
C58
10u10
5V
15
+
NC15
0V
EQ
R79 10K
16
AM
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
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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