Circuit Diagram (Panel Board) - Roland A-49-BK Service Notes

Sep. 2012

Circuit Diagram (Panel Board)

fig.d-panel.eps@L
18
2
PD+3.3V
XDB_BOOT
C50 0.1uF
PD+3.3V
PD+3.3V
PDGND
IC10
RA19
R30
1 8
100k 15
UnPop
2 7
Q11
14
3 6
Q10
2 13
LDB
EXB28V103JX
4 5
DATA Q9 12
1 8
Q8 RA18 UnPop
LCLK 3 11
2 7
CLOCK Q7
10
3 6
Q6 EXB28V103JX
9
R31 4 5
Q5 8 1 8
LQB4
Q4
7 2 7
100k LQB3
Q3
6 3 6
LQB2
Q2
5 4 5
LQB1
Q1
PDGND 4 LQB0
Q0
RA17 EXB28V471JX
BU2090F-E2 R32 1k
PDGND
(Red) VF=1.9Vtyp.
(Blue) VF=2.9Vtyp.
PD+3.3V
C51 0.1uF
PD+3.3V
PDGND
IC9
EXB28V471JX
R33
RA16
15 1 8
LQA11
100k
Q11
14 2 7
LQA10
2 Q10 13 3 6
LDA LQA9
DATA Q9
12 4 5
LQA8
Q8
3 11 1 8
LCLK LQA7
CLOCK Q7
10 2 7
LQA6
Q6
9 3 6 LQA5
Q5
8 4 5
LQA4
Q4
7 1 8
VIL<0.3VDD LQA3
Q3 6 2 7
LQA2
VIH>0.7VDD
Q2
5 3 6 LQA1
Q1
4 4 5
LQA0
Q0
EXB28V471JX
BU2090F-E2
RA15
EXB28V471JX
RA14
PDGND
Qn:OpenDrain 25mAmax.
ON:L(Sink 3.0mA/port)
OFF:HiZ
C75
PD+3.3V PD+3.3V PD+3.3V
0.1uF
DBGND
C69 C70 C71
0.1uF 0.1uF 0.1uF
PDGND PDGND PDGND
A-49-BK, A-49-WH
R34
100k C53
PD+5V
L9
1uF 25V
CDRH104RNP-101NC-R
IC8
PQ1CZ41H2ZPH
1 2
D14
VIN VOUT
5 4
ON/OFF OADJ
RB160L-40 TE25(PB FREE)
C54
0.1uF
PDGND
TP96
PD+3.3V
1
2 1
KP-1608SURC [SupNat.]
LED6
1
2 1
KP-1608SURC [S2]
LED2
2 1
KP-1608SURC [S1]
LED1
2 1
KP-1608SURC [FUNC.]
LED5
CD+5V
2 1
[POWER]
LED11 L-C192TBCT-IA
IF=2.1[mA](Blue)
PD+3.3V
2 1
KP-1608SURC [OCT_6]
LED17
2 1
KP-1608SURC [OCT_5]
LED16
2 1
KP-1608SURC [OCT_4]
LED15
2 1
KP-1608SURC [OCT_3]
LED14
2 1
KP-1608SURC [OCT_2]
LED13
2 1
KP-1608SURC [OCT_1]
LED12
2 1
KP-1608SURC [OCT+]
LED4
2 1
KP-1608SURC [OCT-]
LED3
2 1
KP-1608SURC [TRANSPOSE]
LED7
2 1
KP-1608SURC [PITCH]
LED8
2 1
KP-1608SURC [VOLUME]
LED9
2 1
KP-1608SURC [ASGN.]
LED10
C72
0.1uF
PDGND
PDGND DBGND
C73
0.1uF
PDGND
DBGND
100uH (1.0Amax)
220uF
C55
16V
PDGND
Vref=1.26V
R35
f=300kHz
2.2k F (1%)
A-4.5V
(OPAMP-)
R2
PD+5V CD+5V
220
Q1
SSM3J108TU (TE85L)
2 3
C1
0.1uF
R3
XDB_BOOT
R1 100k 100k
1
SSM3J108TU (TE85L)
2
Q3
R49
PN01
UnPop
2 3
10 1/2W
C77 C76
R48 R50
220uF 220uF
16V 16V
100k 10 1/2W
LED20
1
DB_PLS
Q4 TLN233 (F)
DTC114EUAT106(PB FREE)
DBGND
I
T
2