Roland V-Drums TD-20 - Playing Methods; Pad Playing Techniques (PD-125;105); Hi-Hat Playing Techniques (VH-12)

26
Feb.2004
BLOCK DIAGRAM
fig.block
5V
FLASH
PROG
32Mbit
DRAM
EFX
ESP4
8 to 2
MPX
SRAM
USER
4Mbit
4Mbit
A1DU2L3B034
ANn
V850E MA1
MAIN CPU
TRIG CPU
V850E MA1
3.3V
16Mbit
WORK
3.3V
3.3
SDRAM
8
TRIG_IN x16
23
VR x8
SLIDE VR
SLIDE_VR
240 x 64 dot
LCD UNIT
SDO/SDI
CPLD
2
ANn
ANn
14
8 to 2
MPX
8
SDRAM
WORK
64Mbit
ANn
3.3V
5V
ANn
PREVIEW
PREVIEW
PREVIEW
POWER UNIT
D+5V D+3.3V
A+15V
A-15V A-5V
A+5V
IC201
IC29
IC31
REG
REG
REG
IC2
IC1IC3 IC4IC6
BT2
IC10
IC11
IC207
IC202
REG
CF+3.3V
X
X1
IC57
IC55
IC36
IC2
OTHER
D+5V
RESET FLOW
CPU
MAIN
DEVICES
LCD CN
BOARD
IC18,19,20
FOOT SW
MIDI
2
ENCORDER 7SEG LED
PANEL-U
BOARD
BOARD
PANEL-L
TRIG BOARD
D
+
+
-
+
+
-
D
+
+
1
1
AB
EN
1 4 2
1
2
3
12
1 4
1
1
1