Roland EXR-7 Service Notes

EXR-7
Apr.2004
35
34
CIRCUIT DIAGRAM (MAIN 3/7 - KEY SECTION)
To LEFT
KEYB. Pcb
To RIGHT
KEYB. Pcb
XKEYINT
A1
XRST
D0
XRD
D3
D7
D2
XKEY
A0
D1
D6
D5
D4
KSCLK
XWRL
BR10
BR10
MK10
MK10
MK3
MK1
BR3
MK2
MK1
BR2
BR1
MK2
MK3
BR0
MK0
BR3
BR2
BR1
MK0
BR0
BR8
T6
T0
T0
T7
BR7
T2
T5
T1
MK8
T3
MK6
T4
MK5
T7
T7
T5
T1
T5
MK8
T4
BR7
T1
BR9
MK9
BR5
T0
BR8
T6
BR5
T4
MK6
T7
BR9
MK9
MK5
BR9
T6
BR4
BR4
MK8
MK5
BR5
MK6
MK4
BR8
MK4
BR7
BR4
MK7MK7
MK7
BR6
BR6
BR6
MK4
MK9
MK1
BR1
MK2
BR2
MK3
BR3
BR0
MK0
T1
T0
T6
T5
T4
T3
T3
T3
T2
T2
T2
D
D
D
D
5VD
5VD
D
D
C83
15pFs
CN9
AMPC1_2720P
3
4
5
6
7
8
2
1
9
20
19
18
17
16
15
14
13
12
1110
C77
15pFs
C81
15pFs
C82
15pFs
C84
15pFs
C75
100nFs
C79
15pFs
C78
15pFs
C80
15pFs
IC9
SSC1080F0B
7 33
20 46
24
23
22
21
19
18
17
16
15
14
13
12
11
10
9
8
6
5
4
3
2
1
31
30
29
28
27
26
25
32
49
48
47
44
43
42
41
40
39
38
37
34
36
35
45
50
51
52
VDD VDD
VSS VSS
SC10
PR10
SC9
PR9
SC8
PR8
SC7
PR7
SC6
PR6
SC5
PR5
SC4
PR4
SC3
PR3
SC2
PR2
SC1
PR1
SC0
PR0
T7
T6
T5
T4
T3
T2
T1
T0
CLK
A1
A0
D7
D6
D5
D4
D3
D2
D1
D0
INT
RD
WR
CS
RESET
TEST1
TEST2
C74
33uF16s
RA27
EXB_A10E_103_J
4
5
6
7
8
9
3
2
1
RA26
EXB_A10E_103_J
4
5
6
7
8
9
3
2
1
RA28
EXB_A10E_103_J
4
5
6
7
8
9
3
2
1
RA29
EXB_A10E_103_J
4
5
6
7
8
9
3
2
1
C76
4n7s
C406
100nFs
R254 22s
C85
15pFs
C93
15pFs
C94
15pFs
C86
15pFs
C90
15pFs
C92
15pFs
C87
15pFs
C91
15pFs
RA49 22 EXBV8V_220_JV
18
27
36
45
RA52
EXB2HV_220_JV
22
1
2
3
4
5
6
7
89
10
11
12
13
14
15
16
C89
15pFs
C88
15pFs
C417
15pFs
C418
15pFs
C420
15pFs
C419
15pFs
RA51
EXB2HV_220_JV
22
1
2
3
4
5
6
7
89
10
11
12
13
14
15
16
RA50
EXB2HV_220_JV
22
1
2
3
4
5
6
7
89
10
11
12
13
14
15
16
FL3
ELKE471FA
2
13
R253 22s
CN8
AMPC1_2716P
3
4
5
6
7
8
2
1
9
10
11
12
13
14
15
16
C413
15pFs
C414
15pFs
C96
15pFs
C95
15pFs
C415
15pFs
C416
15pFs
A[0..1]
D[0..7]
XRD
XWRL
XRST
XKEYINT
KSCLK
XKEY
To page 32, A[0..1]
To page 40, A[0..1]
To page 36, A[0..21]
To page 41, A[0..21]
To page 32, D[0..15]
To page 40, D[0..7]
To page 36, D[0..15]
To page 41, D[0..15]
To page 32
To page 36
To page 40
To page 41
To page 32
To page 36
To page 40
To page 41
To page 32

Roland EXR-7 Specifications

General

Brand	Roland
Model	EXR-7
Category	Electronic Keyboard
Language	English