Roland AT-80SL - Page 75

90
Jun. 2005
CIRCUIT DIAGRAM (MAIN 9/13)
fig.main9-c
LOWER
UPPER
EXD0
EXD1
EXD2
EXD3
EXD4
EXD5
EXD6
EXD7
EXD[0..15]
EXA0
EXA1
EXA[0..21]
EXXRD
EXXWE
XKEY0
XKEYINT0
L_BR4
L_MK4
L_MK9
L_MK10
L_MK8
L_BR9
L_T4
L_T6
EXD0
EXD1
EXD2
EXD3
EXD4
EXD5
EXD6
EXD7
EXA0
EXA1
EXXRD
EXXWE
XKEY1
XKEYINT1 U_BR2
U_BR4
U_BR8
U_BR9
U_MK1
U_MK3
U_MK5
U_MK9
L_BR0
L_MK3
L_BR2
L_MK2
L_BR1
U_T4
U_T7
U_T1
U_T0
U_T3
U_T2
U_T5
U_T6
U_MK10
U_BR10
U_MK8
U_MK7
U_BR7
U_MK6
U_BR6
U_BR5
U_MK4
U_BR3
U_MK2
U_BR1
U_MK0
U_BR0
L_BR10
L_BR8
L_MK7
L_BR7
L_MK6
L_BR6
L_MK5
L_BR5
L_BR3
L_MK1
L_MK0
L_T7
L_T5
L_T3
L_T2
L_T1
L_T0
EXA[0..21]
EXD[0..15]
EXXRD
EXXWE
XKEY0
XKEY1
XKEYINT0
XKEYINT1
10M
EXXRES
D
D
+
5D
+
5D
DD
D
+
5D
+
5D
D
D
D
C419
GRM39@
0.1
RA92
EXBE10C@J
4.7k
12
3
4
5
6
7
8
9 10
C418
ECEV-A@WR
33/16
C420
GRM39@
0.1
RA95
EXBE10C@J
NIU
12
3
4
5
6
7
8
9 10
RA94
EXBE10C@J
4.7k
12
3
4
5
6
7
8
9 10
RA98
EXBE10C@J
4.7k
12
3
4
5
6
7
8
9 10
RA97
EXBE10C@J
4.7k
12
3
4
5
6
7
8
9 10
R255
RPC05T@J
0
C417
GRM39@
NIU
C421
GRM39@
NIU
C414
ECEV-A@WR
33/16
C416
GRM39@
0.1
RA99
EXBE10C@J
NIU
12
3
4
5
6
7
8
9 10
RA96
EXBE10C@J
4.7k
12
3
4
5
6
7
8
9 10
RA93
EXBE10C@J
4.7k
12
3
4
5
6
7
8
9 10
C415
GRM39@
0.1
IC103
SSC1080
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
IC102
SSC1080
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
R254
RPC05T@J
0