Roland EXR-7 Service Notes

EXR-7
Apr.2004
33
32
CIRCUIT DIAGRAM (MAIN 2/7 - XP SECTION)
XP Writ e Circuit
Regulator
Strobe Patch
Master
4M-DRAM
40P-SOJ
(176P-QFP)
(3.3V/0.5A)
SDDA1
MUTE
OUTP1
256fs
BCKC
TC514260DJS
64Mb FLEX ROM sop44
128Mb FLEX ROM sop44
XRST
HD8
HA7
HD7
HA4
HD0
HD1
HD10
D10
D9
XRD
HD2
D13
HA5
HD1
HA2
D2
D15
HD7
HRAS
HA1
HA0
HWE
D14
D8
HD6
HD15
HD15
HD12 HD3
HA6
HRAS
D6
HD[0..15]
HA2
D12
XPCK
HD14
HD9
HD4
HCAS
D3
D5
D[0..15]
HA[0..8]
HA4
HD11
HD5
HD6
HA3
HCAS
HD9
HD5
HD4
D11
HD0 HA1
HD3
D4
HA7
HD12
HD14
HA0
HD2
D0
HWE
HD11
HD8
HA8
D1
D7
HA8
HD13
HD13
HD10
HA6
HA3
HA5
BCKC
SDDA1
OUTP1
256FS
LAVCC/2
LAVCC/2 RAVCC/2
RAVCC/2
A[0..13]
A8
A12
A7
A9
A11
A2
A3
A0
A10
A5
A13
A6
A4
A1
XWRL
WCS0
XWOE
WD9
WD15
WD10
WD4
WD5
WD1
WD13
WD8
WD13
WD6
WD13
WD15
WD9
WD10
WD10
WD12
WD7
WD12
WD12
WD14
WD2
WD8
WD1
WD5
WD7
WD15
WD14
WD6
WD14
WD2
WD4
WD4
WD8
WD2
WD9
WD5
W3CS1
XW3OE
WD15
WD10
WD13
WD12
WD2
WD8
WD1
WD7
WD6
WD14
WD4
WD9
WD5
WCS1
XW3OE
W3CS0
WCS0
WCS1
W3CS0
W3CS1
WD11
WD11
WD11
WD11
WD3
WD3
WD3
WD3
WD0
WD0
WD0
WD0W3A17
WA21
W3A4
W3A11
WA22
WA1
W3A7
WA7
W3A2
W3A4
WA17
XWOE
W3A[1..23]
W3A12
W3A16
W3A13
WA16
WA14
W3A20
W3A10
WA17
WA8
WA16
WA22
W3A13
W3A2
WA14
W3A23
W3A4
W3A6
W3A18
W3A3
W3A10
W3A20
WA18
WA10
W3A1
WA21
WA20
W3A14
WA10
W3A9
WA12
WA5
WA20
WA13
WA11
W3A21
W3A22
WA15
W3A6
W3A22
W3A20
W3A11
W3A23
W3A19
W3A17
W3A7
W3A21
WA23
WA8
WA2
W3A18
W3A18
W3A15
W3A5
WA18
W3A5
W3A15
W3A22
WA9
W3A12
WA19
WA5
XW3OE
W3A8
W3A8
W3A1
W3A15
W3A13
WA23
WA12
WA3
W3A10
W3A3
W3A8
W3A11
W3A16
WA6
W3A12
W3A14
W3A7
WA6
WA15
W3A3
W3A14
W3A6
W3A1
W3A19
WA9
WA7
WA4
W3A23
W3A9
W3A9
W3A21
WA2
WA4
WA19
WA11
WA3
W3A2
WA1
WA13
W3A5
W3A19
W3A16
W3A17
5VD
5VD
5VD
5VD
+
D3.3
5VD
5VD
5VD
+12V
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
A
A
A
A
A
D
5VD
D
A
+
D3.3
5VD
D
A
5VD 5VD
D
D
+
D3.3
D
D
D
+
D3.3
D
+
D3.3
D
+
D3.3
D
D
+
D3.3
D
D
D
D
+
D3.3
+
D3.3
D
A
A
+12V
A
A
+
D3.3
D
+
D3.3
D
D
DD
DD
+
D3.3
IC28
LC324260AJ-60
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
VCC
I/O0
I/O1
I/O2
I/O3
VCC
I/O4
I/O5
I/O6
I/O7
NC
NC
WE
RAS
NC
A0
A1
A2
A3
VCC
GND
A4
A5
A6
A7
A8
OE
UCAS
LCAS
NC
I/O8
I/O9
I/O10
I/O11
GND
I/O12
I/O13
I/O14
I/O15
GND
C147
100nFs
C142
100nFs
C177
0.1
C132
100nFs
C151
100nFs
R184
10Ks
C320
220pFs
R187
10Ks
R195
6K8s
R183
10Ks
R193
15Ks
R186
10Ks
C136
100nFs
R197
6K8s
R194
10Ks
R196
10Ks
C179
100nFs
C322
220pFs
R106
68Ks
C321
220pFs
C134
100nFs
C135
100nFs
R84
10Ks
C324
100nFs
C325
100nFs
R109
68Ks
IC44
SN74LV245A-PW
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
B8
B7
B6
B5
B4
B3
B2
B1
OE
VCC
C308
100nFs
C374
0.1
RA32
4X22Ks
4 5
6
7
8
3
2
1
RA30
4X22Ks
4 5
6
7
8
3
2
1
C190
100nFs
C327
15pFs
C161
15pFs
C162
100nFs
C326
10uF16s
C277
10uF16s
R87
10Ks
IC31
AK4324
1 2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
DVSS DVDD
CKS
MCLK
PD
BICK
SDATA
LRCK
SMUTE
DFS
DEM0
DEM1
DIF0
DIF1
DIF2
AOUTR-
AOUTR+
AOUTL-
AOUTL+
AVSS
VREF
AVDD
DZFR
DZFL
C188
100nFs
R78
1Ms
C206
33uF16s
R83
100s
R82
NIU
C182
100nFs
IC23A
TC7WU04F
1 7
C152
100nFs
IC23B
TC7WU04F
3 5
IC23C
TC7WU04F
6 2
C149
100nFs
IC23D
TC7WU04F
84
R192
15Ks
R198
15Ks
RA33
4X100s
4 5
6
7
8
3
2
1
C139
10uF16s
IC29
TA7805F
1 2
3
IN OUT
COM
IC51
M27W064_100M
44
43
2
3
34
35
36
37
38
39
40
41
42
4
5
6
7
8
9
10
11
31
33
12
14
29
27
25
22
20
18
16
30
28
26
24
21
19
17
15
1
23
13
32
A20
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
*/D15
A22/VPP
CE
OE
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
A21
VCC
VSS
VSS
C172
0.1
R79
33s
C171
0.1
R80
470s
RA35
8X10Ks NIU
4
5
6
7
8
9
3
2
1
C173
10uF16s
IC21
PQ3DZ53U
1
2
3
4
5
IN
OFF
OUT
NC
GND
X3
MA_406_24M576Hz
24.576MHz
IC30B
TC7WH32FU
5
6
3
IC30A
TC7WH32FU
1
2
7
C148
10uF16s
R81
22Ks
C323
33uF16s
C315 10uF16s
C164
0.1
C317 10uF16s
C318 10uF16s
C319 10uF16s
C145
100nFs
C128
100nFs
C159
10nFs
C174
100nFs
IC26
M27W1282
44
43
2
3
34
35
36
37
38
39
40
41
42
4
5
6
7
8
9
10
11
31
33
12
14
29
27
25
22
20
18
16
30
28
26
24
21
19
17
15
1
23
13
32
A20
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
*/D15
A22/VPP
CE
OE
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
A21
VCC
VSS
VSS
C169
22pFs
IC30C
TC7WH32FU
84
C312
100nFs
IC46
SN74LV245A-PW
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
B8
B7
B6
B5
B4
B3
B2
B1
OE
VCC
C141
100nFs
C143
100nFs
C137
100nFs
C146
100nFs
R210
10s
C176
NIU
C178
100nFs
C156
100nFs
RA34
8X10Ks
4
5
6
7
8
9
3
2
1
C168
22pFs
R89
10s
C306
100nFs
C129
100nFs
C167
22pFs
C166
22pFs
R148
100s
C140
10uF16s
C329
33uF16s
IC40
SN74LV245A-PW
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
B8
B7
B6
B5
B4
B3
B2
B1
OE
VCC
C127
10uF16s
C160
12pFs
TP
TP10
TP
C138
100nFs
C130
100nFs
+
-
IC47B
M5218AFP
6
5
7
+
-
IC47A
M5218AFP
2
3
1
+
-
IC47C
M5218AFP
84
C313
220pFs
C175
100nFs
R189
6K8s
C328
10uF16s
R206
10Ks
NIU
C330
10uF16s
C210
10uF16s
R185
15Ks
R191
6K8s
R190
10Ks
C150
100nFs
C131
100nFs
IC27
TC7S32F
1
2
4
53
R188
10Ks
R85
2K2s
NIU
C316
220pFs
RA31
4X22Ks
4 5
6
7
8
3
2
1
C314
220pFs
IC24
TC203C180AF(XP6)
1
2
3
4
5
6
7
8
9
10
11 12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44 45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88 89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132 133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
VDD5
SDIB
BCKB
WCKB
SDOC
VSS
SDOD
BCKC
WCKC
OUTP1
VDD5 VDD3
OUTP2
OUTP0
VSS
SYO
VSS
SYI
RW
DS
CA10
CA9
CA11
CA8
CA12
CA7
CA13
CA6
CA5
CA4
CA3
CA2
VDD5
CA1
CA0
CD15
CD0
CD7
VSS
CD8
CD14
CD1
CD6
VDD5 VDD5
CD9
CD13
CD2
CD5
CD10
VSS
CD12
CD3
CD4
CD11
VDD3
WAIT
CS
RESET
AS
VSS
INT
VSS
CK
TEST
VDD5
WA23
WA22
WA20
WA21
WA19
VSS
WA18
WA9
WA8
WA10
VDD5
WA7
WA11
WA6
WA12
WA5
VSS
WA13
WA4
WA14
WA3
VDD5 VDD5
WA15
WA2
WA16
WA0
WA1
WA17
VSS
WOE1
WOE0
WD15
VDD3
WD0
WD7
WD8
WD14
VSS
WD1
WD6
WD9
WD13
WD2
WD5
WD10
WD12
WD3
WD4
WD11
VSS
WCS0
WCS1
WCS2
VDD5
WCS3
WCS4
WCS5
WCS6
WCS7
VSS
WREQ
WACK
ED7
VSS
VDD5 VDD5
VSS
ED6
ED5
ED4
ED3
ED2
VSS
ED1
ED0
EWE
VDD3
RAS
CAS
EA8
EA0
VSS
EA7
EA1
EA6
EA2
EA5
EA3
EA4
VSS
SDOA5
SDOA4
SDOA3
SDOA2
SDOA1
SDOA0
VSS
VDD5
SDIA5
SDIA4
SDIA3
SDIA2
SDIA1
VSS
SDIA0
BCKA
WCKA
SDOB
VDD5
XPCS
XPINT
XWRL
A[0..13]
XPWAIT
XRST
XRD
D[0..15]
MUTE
SENDL
SENDR
To page 34, A[0..1]
To page 40, A[0..1]
To page 36, A[0..21]
To page 41, A[0..21]
To page 34, D[0..7]
To page 40, D[0..7]
To page 36, D[0..15]
To page 41, D[0..15]
To page 34
To page 36
To page 40
To page 41
To page 34
To page 36
To page 40
To page 41
To page 34
To page 30

Roland EXR-7 Specifications

General

Brand	Roland
Model	EXR-7
Category	Electronic Keyboard
Language	English