Circuit Diagram (Main Board: 3/4) - Roland HandSonic HPD-20 Service Notes

Sep. 2013

Circuit Diagram (Main Board: 3/4)

fig.d-main3.eps@L
MAIN BOARD (DSP/Memory, D/A,Interface)
D+3.3V
IC21
C383 TC7WU04FU(TE12L.F)
0.1uF
6
IC21
DGND TC7WU04FU(TE12L.F)
R360
C72 10pF
1
2
4
C53 10pF
X3
DSX321G 16.9344MHZ
DGND
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
10uF
2012
DGND
<B2> EA(13:0)
EA(11)
EA(10)
EA(9)
R167
EA(8)
150
EA(7)
EA(6)
EA(5)
C78
56pF EA(4)
EA(3)
EA(2)
EA(1)
EA(0)
D+3.3V
DGND EA(13)
EA(12)
R164
DCK-CLK
0
<D3>
<D2> XEUDQM
XELDQM
<D2>
D+3.3V <C2> XERAS
XECAS
<C2>
<C2> XEWE
<C2> XECS
R128
10k
32
<4B1>
2
(Wave FLASH)
<B6>
<4B1>
<4A1>
<4A1>
<4A1>
<4D1>
<4B1>
1M
<4B1>
IC21
7
TC7WU04FU(TE12L.F)
R292
R413 820
100
3 5
IC21 DGND
C479
TC7WU04FU(TE12L.F)
EA(13:0)
<D1;D4>
ED(7:0)
<D3>
<E1>
<E1>
<E1>
D+3.3V <E1>
C124
<E1>
C90
<E1>
C79
C110
C107
<E1>
C270
C80
C271
53
DQ15
40 51
NC DQ14
36 50
NC DQ13
35 48
A11 DQ12
22 47
A10/AP DQ11
34 45
A9 DQ10
33 44
A8 DQ9
32 42
A7 DQ8
31 13
A6 DQ7
30 11
A5 DQ6
29 10
A4 DQ5
26 8
A3 DQ4
25 7
A2 DQ3
24 5
A1 DQ2
23 4
A0 DQ1
21 2
BA1 DQ0
20
BA0
38
CLK
37
CKE
39
UDQM
15
LDQM
18
_RAS
17
_CAS
16
_WE
19
_CS
IC22
M12L64164A-7TG2Y(60NM)
DGND
ERAM
SCAN4 R368
XWCS0 R317
R168
SCAN3
R169
SCAN2
R122
SCAN1
R119
SCAN0
R118
LCD-XRST
R137
LEDO1
R116
LEDO0
D+1.2V
C427
10uF
2012
22pF UnPop
R106 220
EA(13)
R102 220
EA(12)
1 8
EA(11)
RA21 2 7
EA(9)
3 6
EA(8) EXB28V221JX
4 5
EA(10)
4 5
EA(7)
RA46
EA(6) 3 6
2 7
EA(5) EXB28V221JX
1 8
EA(4)
1 8
EA(3)
RA20 2 7
EA(2)
EXB28V221JX 3 6
EA(1)
4 5
EA(0)
ED(7)
ED(6)
ED(5)
ED(4)
ED(3)
ED(2)
ED(1)
ED(0)
1 8
XECS
2 7
XERAS
3 6
XECAS
4 5
XEWE
RA23 EXB28V221JX
XELDQM
R90 220
XEUDQM
R107 220
DCK-CLK
DCK_41-CLK
R126
L13
22
BLM15BB121SN1D
ED(7:0)
1 8
ED(7)
2 7 ED(6)
RA58
3 6
ED(5)
EXB28V221JX
4 5
ED(4)
1 8 ED(3)
2 7
RA57 ED(2)
3 6
ED(1)
EXB28V221JX
4 5
ED(0)
1 8
ED(0)
2 7
RA56 ED(1)
3 6
ED(2)
EXB28V221JX
4 5 ED(3)
1 8
ED(4)
2 7
RA53 ED(5)
3 6 ED(6)
EXB28V221JX
4 5
ED(7)
F3
33
R3
68
E3
33
F2
33
E2
33
E1
33
D1
33
C1
33
D2
33
AE4
C365
0.1uF
AE3
DGND
V1
R2
P2
N1
T1
P1
R1
L4
L3
N3
P3
K3
J3
H3
G3
F1
G2
G1
H2
H1
J2
J1
K2
N2
M1
M2
L1
K1
L2
AD1
DCK_42-CLK
IC5
<C2> R8A02021ABG (SSC7)
SSC
EA(13:0)
<B2>
EA(7)
EA(6)
EA(5)
EA(4)
EA(3)
EA(2)
EA(1)
EA(0)
HPD-20
D+3.3V
RA61
EXB28V103JX
1 8
2 7
3 6
4 5
4 5
3 6
2 7
1 8
EXB28V103JX
RA62
DGND