Kenwood KDC-MP628 Service Manual page 32

AE
KDC-MP628/MP7028/MP728
MP8029/W7031/W7031Y
1
SWITCH UNIT (X16-xxxx-xx)
SW5V
SW
2
∗
IC2
A
R15 270K
1
R02
R16 270K 2
R01
R9 R12
3
LNNF
4
33K 22K
LNIN
5
RENF
6
REIN
7
RSTC
8
BISC
9
0V
GND
SPECTRUM
3
ANALYZER
Q3
R1 C1 0.01
BLUE
750
D4
LED SW
R2 C2 0.01 C6 0.01 Q4
GREEN
360
D5 D13
LED SW
R3 C3 0.01 C7 0.01
Q5
RED
360
D6 D14
LED SW
R4 C4 0.01 C8 0.01
360
D7 D15
D1 D9 D16
R5
470
Q5
4
D2 D10 D17
R6
470
D3 D11 D18
R7
470
D12
∗
R66
∗
B
Q2
TRIANGLE
R8
RED LED SW
270
ROM IC
∗
5 FLASH ROM IC
IC1
1
A16 A15 3.3V
2
0V
A15 A14
3
A14 A13
4
A13 A12
5
3.3V
A12 A11
6 0V
A11 A10
7
A10 A9
8
A9 A8 3.3V
9
0V
A20 A19
10
A21 A20
3.3V
0V
∗
CP1 3.3V
11
22K 0V
94 WE (NC)
3.3V
12
RESET (NC) 0V
3.3V
13
0V NC13 (NC)
14
WP/ACC (NC)
6 15
3.3V
RY/BY (NC)
0V
16
A19 A18
17
A18 A17
18
3.3V
A8 A7
0V
19
A7 A6
20
3.3V
A6 A5
0V
21
A5 A4
22 3.3V
A4 A3
0V
23
A3 A2
3.3V
24
A2 A1 0V
7
32
X16-2950-1x / X16-3122-72 (1/2)
AF
ED1
REMOTE
CONTROL
R36
100
5V
Q7
IC6
0V
R28
VCC 3
R38
10K
5V 1K
2
VO
0V
Q8 1 0V
4.7K
GND
47K
73
CP7
1.35V 3.3V
18 47K
RST 111
0V 0V
17
F01 79
16
F02 78
15
F03 77
14
2.4V
F04 76
0V
CP6
13
F05 75
3.3V
12
F06 74
0V
47K
2.4V
0V
11
R19
RELV
5V 10
10
VCC
0V
3.3V
Q3
0V
Q4
3.3V
0V
CP2 22K
R20 3.3K
CP8 330
CP4 4.7K
A21
A20
CP9 330
A19
A18
TRIANGLE
A17
GREEN LED SW
A16
D8
∗
Q1
0V
CP10 330
Q2
A15
A14
A13
Q6
A12
SW3.3V
3.3V
CP11 330
0V SW
A11
48
A16 A17
A10
47
BYTE
A9
A8
46 0V
GND2
45
Q15 D15
0V
44
Q7 D7
CP12 330
43
Q14 D14
A7
42
Q6 D6
A6
41
Q13 D13
A5
40
Q5 D5
A4
39
Q12 D12
CP13 330
38
Q4 D4
A3
A2
37
VCC A1
36
Q11 D11
35
Q3 D3
34
Q10 D10
33
Q2 D2
32
3.3V
Q9 D9
0V
31
Q1 D1
30
Q8 D8
29
Q0 D0
0V
28
OE 95
CP3 22K
27
GND1
26
CE
101
25
A0 A1
CAUTION : For continued safety, replace safety critical components only with
manufacturer's recommended parts (refer to parts list).
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.
AG
G1 G2 G3 G4 G5 G6 G7 G8 G9 G10
C21
0.01
3.3V
0V
R17
4.7K
109
PON TRI RED
110
PON LED
BLUE
111
SA RST
3.3V / 0V
3.3V
112
3.3V
3.3VDD
0V
0V
113
EVSS
114 3.3V
PON GREEN
0V
115
PON RED
3.3V
116
PON SW3.3V 0V
117
NC
118
A21
119
A20
3.3V
120
0V
A19
121
A18
122
A17
123
A16
124
2.5VDD
2.5V
125
VSS
126
A15
127
A14
128
A13
129
A12
3.3V
0V
130
A11
131
A10
132
A9
133
A8
134
3.3V
3.3VDD
135
EVSS
136
A7
137
A6
138
A5
139
A4
3.3V
140
0V
A3
141
A2
142
A1
3.3V
143
0V
A0
144
D15
C20
0.01
Indicates safety critical components. To reduce the risk of electric shock,
AH
G11 G12 G13 G14 G15 G16 G17 G18 G19 G20
C23
3.3V / 0V
3.3V
0V
3.3V
0V
3.3V
0V
IC4
PANEL
u-COM
3.3V
0V
3.3V
0V
3.3V
0V
3.3V
0V
C22
0.01
AI
G21 G22 G23 G24 G25 G26 G
0.01
0V
3.3V
0V P
0V
FL
3.3V
F
0V
F
3.3V
0V
PA
SY
3.3V
P
0V
F
3.3V
0V
3.3V
0V
3.3V 3.3V
0V 0V
3.