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SCHEMATIC DIAGRAM - 7
MAIN CIRCUIT
MCLK
81
RESTSW
82
CHG_HLF
83
CHG_CW
84
CHG_CCW
85
CHG_SW1
86
CHG_SW2
87
CHG_PLR
88
CHG_AD2
R2856
100
89
CHG_AD1
R2857
100
90
DECK2
91
KEY3
R2858
100
92
100
R2859
KEY2
93
R2860
100
KEY1
94
PHOTO_2
R2861
95
100
96
R2862
PHOTO_1
97
100
VREF+
98
VCC
99
100
R2867
100K
C2821
C2820
C2819
C2818
C2831
0.022
C2832
330P
R2876
22K
R2877
22K
4
3
IC2802
C3EBDG000052
E-EPROM IC
(NOT SUPPLIED)
5
6
R2878
C2833
4.7K
330P
: +B SIGNAL LINE
80
79
76
75
74
73
72
71
70
78
77
MCLK
/RESTSW
CHG_HLF
CHG_CW
CHG_CCW
CHG_SW1
CHG_SW2
CHG_PLR
CHG_AD2
CHG_AD1
DECK2
KEY3
KEY2
KEY1
PHOTO_2
AVSS
PHOTO_1
VREF
AVCC
DEMO SELECTOR
1
2
3
4
6
9
5
7
8
10
11
R2801
100P
10K
100P
100P
100P
2
1
7
8
66
69
68
67
65
64 63
62
61
60
59
58
57
56
IC2801
C2CBJG000572
MICROPROCESSOR
12
13
14
16
18
19
20
21
22
23
24
25
15
17
R2881
220
R2886
1M
R2883
330K
IN
OUT
C2840
R2882
18P
10M X2801
GND
H0A327200073
X2802
H2B100500004
C2841
18P
54
55
53
52
51
R2828
10K
NC
50
NC
49
NC
48
47
DCDET
46
PCONT/EFP_/CE
45
NC
44
NC
43
EE_DAT
42
EE_CLK
EE_CS/EFP_/EPM
41
MUTE_A
40
MUTE_H
39
38
REG1
REG2
37
REG3
36
REG4
35
REG5
34
REG6
33
REG7
32
REG8
31
26
27
28
29
30
R2804
47K
R2805
47K
R2807
10K
R2806
10K
C2851
0.1
R2891
47K
R2810
22K
R2892
C2853
C2852
0.1
16V100
C2854
16V100
Q2806
C2857
50V2.2
C2856
1
D2804
B0ACCK000005
VREF+
R2832
10K
DCDET
R2834
1K
PCONT
EE_DAT
EE_CLK
EE_CS
MUTE_A
MUTE_H
BUSY
CLK
RXD
TXD
SW5V
D2802
B0ADCJ000020
SYS6V
0
R2811
0
VREF+
Q2806
B1GBCFJJ0051
POWER RESET
CONTROL SWITCH
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