Roland EXR-5 Service Note

EXR-5
Oct.2003
33
32
CIRCUIT DIAGRAM (MAIN 3/6 - KEY SECTION)
MK0_K
MK0 T0
BR0_K
BR0 T1
MK1_K
MK1 T2
BR1_K
BR1 T3
MK2_K
MK2 T4
BR2_K
BR2 T5
MK3_K
MK3 T6
BR3_K
BR3 T7
KSCLK MK10 MK4_K
BR10 BR4_K
MK9 MK5_K
A1 BR9 BR5_K
A0 MK8 MK6_K
BR8 BR6_K
MK7_K MK7_K
D7 BR7_K BR7_K
D6 MK6_K
D5 BR6_K
D4 MK5_K
MK4 T0
D3 BR5_K MK8
BR4 T1
D2 MK4_K BR8
MK5 T2
D1 BR4_K MK9
BR5 T3
D0 MK3_K BR9
MK6 T4
BR3_K MK10
BR6 T5
MK2_K BR10
MK7 T6
XKEYINT BR2_K
BR7 T7
MK1_K
MK8 MK9
XRD BR1_K
BR8 BR9
XWRL MK0_K
XKEY BR0_K
XRST
BR0 MK0
BR1 MK1
BR2 MK2
BR3 MK3
BR4 MK4
BR5 MK5
BR6 MK6
BR7 MK7
BR8 MK8
BR9 MK9
SC0
SC1
SC2
BR0_M BR1_M BR3_M BR4_M BR5_M BR6_M BR7_M MK0_M MK1_M MK2_M MK3_M MK4_M MK5_M MK6_M MK7_M
SC3
SSD6
SSD1
SSD0
SSD3
SSD7
SSD2
SSD5
SSD4
SC4
T0
T1
T2
T3
T4
T5
T6
T7
T0_K
T1_K
T2_K
T3_K
T4_K
T5_K
T6_K
T7_K
T0
T1
T2
T3
T4
T6
T5
T7
MK2_M
MK0_M
MK6_M
MK4_M
MK5_M
MK1_M
MK7_M
MK3_M
MK0
MK1
MK2
MK3
MK4
MK5
MK6
MK7
MK4
MK5
MK6
MK7
MK0
MK1
MK2
MK3
BR4
BR5
BR6
BR7
BR0
BR1
BR2
BR3
BR0
BR1
BR2
BR3
BR4
BR5
BR6
BR7
MK7_K
MK6_K
MK5_K
MK4_K
MK3_K
MK2_K
MK1_K
MK0_K
BR4_M
BR3_M
BR7_M
BR0_M
BR5_M
BR6_M
BR2_M
BR2_M
BR1_M
T6_K
T3_K
T0_K
T2_K
T7_K
T5_K
T6_K
T4_K
T5_K
T7_K
T1_K
T1_K
T3_K
T2_K
T4_K
T0_K
BR0_K
BR1_K
BR2_K
BR3_K
BR4_K
BR5_K
BR6_K
BR7_K
SSD[0..7]
A[0..1]
D[0..7]
XRD
XWRL
XKEY
XRST
XKEYINT
KSCLK
SC[0..4]
SSD[0..7]
D
D
D
D D
D
5VD
5VD
D D
D
5VD
5VD
D
To RIGHT CONTACT PCB Assy
FL3
ELKE471FA
2
13
C94
100pFs
C89 100pFs
C91 100pFs
C7
100nFs NIU
C359
100nFs NIU
C82
100pFs
C353
22pFs NIU
C84 100pFs
C356
22pFs NIU
C354
22pFs NIU
RA53
4X0s NIU
4 5
6
7
8
3
2
1
C78 100pFs
C357
22pFs NIU
C355
22pFs NIU
RA54
4X0s NIU
4 5
6
7
8
3
2
1
RA49
4X0s NIU
4 5
6
7
8
3
2
1
C90 100pFs
C92 100pFs
CN8
AMPC1_2716P
3
4
5
6
7
8
2
1
9
10
11
12
13
14
15
16
RA50
4X0s NIU
4 5
6
7
8
3
2
1
RA51
4X0s NIU
4 5
6
7
8
3
2
1
C81 100pFs
C83 100pFs
RA52
4X0s NIU
4 5
6
7
8
3
2
1
C77 100pFs
C86 100pFs
C88 100pFs
C95 100pFs
C93 100pFs
C358
33uF25s NIU
IC32
74HC238F NIU
A
1
B
2
C
3
G1
6
G2A
4
G2B
5
Y0
15
Y1
14
Y2
13
Y3
12
Y4
11
Y5
10
Y6
9
Y7
7
VCC
16
GND
8
CN9
AMPC1_2716P
3
4
5
6
7
8
2
1
9
20
19
18
17
16
15
14
13
12
1110
RA58
4X0s
4 5
6
7
8
3
2
1
RA56
4X0s
4 5
6
7
8
3
2
1
C75
100nFs
C96 100pFs
RA57
4X0s
4 5
6
7
8
3
2
1
C85 100pFs
C79 100pFs
RA55
4X0s
4 5
6
7
8
3
2
1
C87 100pFs
RA60
4X0s
4 5
6
7
8
3
2
1
C74
33uF25s
RA27
EXB_A10E_103_J
4
5
6
7
8
9
3
2
1
RA59
4X0s
4 5
6
7
8
3
2
1
RA26
EXB_A10E_103_J
4
5
6
7
8
9
3
2
1
IC50
74HC238F NIU
A
1
B
2
C
3
G1
6
G2A
4
G2B
5
Y0
15
Y1
14
Y2
13
Y3
12
Y4
11
Y5
10
Y6
9
Y7
7
VCC
16
GND
8
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
C80 100pFs
IC9
SSC1080F0B
VDD
7
VDD
33
VSS
20
VSS
46
SC10
24
PR10
23
SC9
22
PR9
21
SC8
19
PR8
18
SC7
17
PR7
16
SC6
15
PR6
14
SC5
13
PR5
12
SC4
11
PR4
10
SC3
9
PR3
8
SC2
6
PR2
5
SC1
4
PR1
3
SC0
2
PR0
1
T7
31
T6
30
T5
29
T4
28
T3
27
T2
26
T1
25
T0
32
CLK
49
A1
48
A0
47
D7
44
D6
43
D5
42
D4
41
D3
40
D2
39
D1
38
D0
37
INT
34
RD
36
WR
35
CS
45
RESET
50
TEST1
51
TEST2
52
C76
4n7s
To LEFT CONTACT PCB Assy

Roland EXR-5 Specifications

General

Polyphony	64 voices
Speakers	12 cm x 2
Keyboard	61 keys (with velocity)
Drum Kits	20 drum kits
Effects	Reverb, Chorus
Connectors	MIDI In/Out
Power Supply	AC Adaptor