Kenwood KOS-A200 Service Manual page 16

K
KOS-A200
CN1
3 1 2
TP7
TP9
TP10
TP11
TP405
TUNGND
K1
Q407
L401 L402
R422
0.22uH 0.22uH
220
TP614
0V
3.3V
0V
75
3.3V PDL4
0 or 3.3V 74
0V
TP609
PDL3
73
V
PDL2
3.3V
72
0V PDL1
71
TP610
PDL0
70 3.3V
BVDD
69 0V
BVSS
68
TP632
PCT6
67
TP633
PCT4
66
TP634
PCT1
65
PCT0 TP635
3.3V
0V
64
PCM3
3.3V
63
0V PCM2
62
PCM1
3.3V
61
PCM0
0V
60
CP601
PDH3
100
59
PDH2
58 0V
ACC DET P915
TP601
4.2V
57 0V
0V P914
56
POWER ON DET P913
55
TP636
P912
54
TP603
P911
53
TP604
P910
4.2V
0V
0V
52
P99
3.3V 51
3.3V P98
0V 3.3V
CP602
0V
100
0V
R622
47K
R612
22K
2 58
BU3.3V
16
X14-9790-10/2-71 (3/6)
L
5.1/25mV
6
USB 3.3V
R912
8.2K
TP61
C913
1 6 220u16
73
D902
72
13.6V
0V
0V
C908
0.1
IC901
64
63
1.2/0.7V
62
61
0.6/0.1V
0V
SW REG.
CONT
6
TP57
BU
Q908
TP56
Q907
M
USB I/F
J6
1 2 3 4
TP6
EGND2
TP3 TP2
TP4
TP1
C952
220u16
+
C954
8
1000P
C951 C953
0.1 0.1
D951
5.0/0.4V
IC951
4
0V USB
POWER
CONT
3.3/0V
R954
3.3/0V
15K
29
R951
25
15K
4
USB 5V
USB5V
R911 R910 R913 R914
82K 20K 10K 75K
TP60
C911
220u16
+
C910
+
220u16
C914
+
D901
1
SW20V
C907
0.1
18.3V
0V
4.3V
13.6V
0V
0V
0V
R916 C905
150K 6800P
Q902 Q901
6
C915
100u25
+
6
TP50
Q906
SW20V
SURGE
PROTECTION
10
Q905
N
7
CS 1.8V REG.
41
43
IC20
3.1V
4 3
7
ON/OFF NC
2
R372
4.8V VSS
2.2
5 1
VIN VOUT
1.8V
NOT USED
C28 0.01
E2PROM
IC27
TP128
TP134
1 8
A0 VCC
CP51
2 7
A1 WP 100
3 6
A2 SCL
4 5
GND SDA
TP129
TP135
8
9
6
7
9
TP100
6
CP2
26
100 NC
27
36 SCL
28
6 35 SDA
9
TP27
TP153
TXD1
29
29 DSP TXD
TP26
TP154
RXD1
30
30 DSP RXD
TP130
TP155
CLK
31
31 DSP CLK
TP131
TP156
BUSY 32
32 DSP STB (BUSY)
R151 1K
33
33 CS SDATA
R19
3.3V SEARCH ONLY
4.7K
0V
R152 220
34
34 CS BDATA
R20 1K
3.3V 35
10 35 CS CLK
36
NC
37
NC
38
TP157
NC
7
EPM
39
CP50 1K
EPM
TP132
40
PON D3.3
41
41 PON A5
42
PON CS1
43
43 PON CS2
TP133
R4 CE
44
CE
47K TP158
45
DRV MUTE
Q16
46
NC
47
NC (RZM)
0V 48
ZERO (LZM)
48
3.3V 49
49 DE-EMPHASIS
50
NC
10
O
R144
22K
TP101
0V
C88
0.047
4
SCL
SDA
CP52
4.7K
3.3
3.3V
0V
3.3V
0V
3.3V
0V
3.3V