Circuit Diagram(Main(Sh2Ga, Panel I/F, Controller I/F)) - Roland RS-70 Service Notes

May 2003

CIRCUIT DIAGRAM(MAIN(SH2GA, Panel I/F, Controller I/F))

fig.CircuitMain2
SH2GA,
Panel I/F
VRSCAN1
VRSCAN0
XDBPLS
XLCDDREQ
XLCDDACK
+ 5
D
XKSCS
1 8
XUSBS1
2 7
XUSBS0
3 6
XFDCCS
4 5
RA22 10K EXBV8V@JV
RA24 10K EXBV8V@JV
1 8
UOBF1
2 7
UIBF0
3 6
FDCINT
4 5
D
+ 5
D
TESTLED1 R82
1
Q8 [NIU]
[NIU]
LED2
[NIU]
34
VRSCAN1
VRSCAN0
XDBPLS
C43
RV2-V@M-R
10/16
C44 0.1
C46 0.1
C48 0.1
C50 0.1
C52 0.1
D
A[0..21]
A21
21
A19
22
A18
23
A6
25
A5
26
A4
27
A3
28
A2
30
A1
31
A0
32
D[0..7]
D7
14
D6
13
D5
12
D4
11
D3
9
D2
8
D1
7
D0
6
XRD5V
46
XRD5V
XWR5V
47
XWR5V
XLCDDREQ
43
XLCDDACK
45
XGAWAIT
49
XGAWAIT
+ 5
D
19
XGACS
17
XGACS
16
XGAINT
48
XGAINT
68
67
66
65
1 8 63
XKSCS
2 7 62
XUSBS1
3 6 61
XUSBS0
4 5 59
XFDCCS
10
58
RA23 EXBV8V@JV
57
56
54
53
52
51
80
D 79
78
UOBF1
77
UIBF0
76
FDCINT
141
GACLK
R75 47
40
KSCLK
42
XRST5V
R76 100
144
C105
109
100P
108
73
72
D 38
37
D
+ 5
D
C45 0.1
C47 0.1
C49 0.1
C51 0.1
C53 0.1
D
4
93
125
+ 5
D
124 D
123
122
R52 [NIU]
89
88
87
86
85
84
R54 100
83
R56 100
82
5
69
+ 5
D
92
91
98
L20 N1608Z@T01 1000
97
L21 N1608Z@T01 1000
96
L22 N1608Z@T01 1000
95
L23 N1608Z@T01 1000
103
L24 N1608Z@T01 1000
102
L25 N1608Z@T01 1000
101
L26 N1608Z@T01 1000
100
L27 N1608Z@T01 1000
99
L28 N1608Z@T01 1000
105
L29 N1608Z@T01 1000
120
L30 N1608Z@T01 1000
119
L31 N1608Z@T01 1000
118
L32 N1608Z@T01 1000
117
L33 N1608Z@T01 1000
115
L35 N1608Z@T01 1000
114
L37 N1608Z@T01 1000
113
L38 N1608Z@T01 1000
112
L40 N1608Z@T01 1000
126
L41 N1608Z@T01 1000
127
L43 N1608Z@T01 1000
128
L44 N1608Z@T01 1000
138
L45 N1608Z@T01 1000
137
L46 N1608Z@T01 1000
135
L47 N1608Z@T01 1000
134
L48 N1608Z@T01 1000
133
L49 N1608Z@T01 1000
132
L50 N1608Z@T01 1000
131
L51 N1608Z@T01 1000
130
1
35
36
3
15
20
29
D
IC18 TC160G22AF-1253
D
MIDIIN
MIDIIN
TESTLED1
D
R53
LCDPWM
1
BEATG 1K
BEATR
C60 R58
LCDPWM 1 3.3K
D D
SSCAN2 SSCAN2
SSCAN1 SSCAN1
SSCAN0 SSCAN0
LSCAN3 LSCAN3
LSCAN2 LSCAN2
LSCAN1 LSCAN1
LSCAN0 LSCAN0
SSEN SSEN
LLCK LLCK
+ 5
D
LSD7 LSD7 LSD7
9 10
LSD6 LSD6 LSD6
8
LSD5 LSD5 LSD5
7
LSD4 LSD4 RA21 LSD4
6
LSD3 LSD3 LSD3
5
LSD2 LSD2 10K LSD2
4
LSD1 LSD1 LSD1
3
LSD0 LSD0 LSD0
2 1
LCDRS LCDRS
LCDRXW LCDRXW
LCDE LCDE
+ 5
D
R72
LCDDB7 LCDDB7 10K LCDDB7
LCDDB6 LCDDB6
LCDDB5 LCDDB5
LCDDB4 LCDDB4
LCDDB3 LCDDB3
LCDDB2 LCDDB2
LCDDB1 LCDDB1
LCDDB0 LCDDB0
+ 5
Q5
2SC3052
L19
LCDV5
N1608Z@T01
600 C61
R59 0.1
100
D D
C67 1000P
C68 1000P
C69 1000P
C70 1000P
C71 1000P
C72 1000P
C75 1000P
C76 1000P
C78 1000P
C80 1000P
C81 1000P
C82 1000P
C83 1000P
C86 1000P
C87 1000P
C88 1000P
C89 1000P
C90 15P
D
C91 15P
C92 15P
C93 15P
C94 15P
C95 15P
C99 15P
C100 15P
C102 15P
C103 15P
C104 15P
D