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SA-AK220E / SA-AK220EB
SCHEMATIC DIAGRAM - 6
MAIN CIRCUIT
Q312
Q316
B1GBCFJJ0039
B1ACCF000063
PCONT SWITCH
SWITCH
Q312
R338
R805
1K
4.7K
R367
10K
Q316
R815
470K
D313
Q317
B0ACCE000003
B1ACCF000063
DECK SUPPLY SWITCH
MCLK
RESTSW
CHG_HLF
CHG_CW
CHG_CCW
CHG_SW1
CHG_SW2
CHG_PLR
CHG_AD2
CHG_AD1
DECK2
KEY3
R884
100
100
R885
KEY2
R886
100
KEY1
REG_2
REG_1
VREF+
VCC
R315
8.2K
R312
100K
C332
100P
C331
100P
C330
100P
C329 100P
C328
100P
: +B SIGNAL LINE
Q317
R816
470K
80
79
76
75
74
73
78
77
81
MCLK
82
/RESTSW
83
CHG_HLF
84
CHG_CW
85
CHG_CCW
CHG_SW1
86
87
CHG_SW2
88
CHG_PLR
89
CHG_AD2
CHG_AD1
90
91
DECK2
92
KEY3
KEY2
93
KEY1
94
REG_2
95
AVSS
96
97
REG_1
VREF
98
99
AVCC
100
DEMO SELECTOR
1
2
3
4
6
5
7
8
R392
10K
C353
100P
C354
100P
72
71
70
69
68
67
66
65
64 63
62
61
60
59
58
57
IC305
C2CBJF000017
MICROPROCESSOR
9
12
13
14
16
18
19
20
21
22
23
24
10
11
15
17
C387
68P
X303
H2A100500006
R804
Q313
C388
330K
68P
C369
C361
56P
R801
18P
10M
X301
1000P
H0A327200073
C362
18P
56
C352
100P
C351
100P
C350
100P
R383
10K
56
55
54
53
52
51
SP_C
50
49
SP_B
R337
SP_A
48
1K
47
DCDET
46
PCONT/EFP_/CE
45
NC
44
NC
EE_DAT
43
42
EE_CLK
EE_CS/EFP_/EPM
41
MUTE_A
40
MUTE_H
39
38
NC
NC
37
NC
36
NC
35
NC
34
NC
33
NC
32
NC
31
25
26
27
28
29
30
C324
0.1
47K
R808
R446
22K
L304
R817
C323
C389
680
0.1
6.3V100
L304
10V1000P
RLQB3R3KT-1Y
Q315
C325
C392
100P
50V1
D310
B0ACCK000005
R811
R810
B1GACFLL0007
4.7K
4.7K
POWER RESET
C374
CONTROL SWITCH
56P
Q314
B1ABCF000131
C359
C357
1000P
/DCDET
PCONT
EE_DAT
EE_CLK
EE_CS
MUTE_A
MUTE_H
SW_LV2
SW_LV1
D312
B0ACCE000003
SYS6V
D314
MA2J72900L
C397
C396
50V2.2
VREF+
R809
100K
/DCDET
Q315
Q313, Q314
SWITCH
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