13
Feb.2004
TD-3
BLOCK DIAGRAM
fig.block
MIX IN
HH CTRL
EEPROM
(mini jack)
OUTPUT
(L)/MONO
OUTPUT
(R)
PHONES
DC IN
POWER
CRASH1
HIHAT
TOM3
TOM1
TOM2
SNARE
RIDE
RIPPLE
FILTER
H H C T R L
KICK
CPU
SRAM
8bit
ROM
16bit
8bit
DSP
PANEL BOARD
PANEL BOARD
PANEL BOARD
REGULATOR
INVERT
CONVERTER
STEP-DOWN
CONVERTER
DAC
Lout
Rout
PANEL BOARD
EEPSDA
EEPSCK
A D
A D
JK3
JK4
JK5
JK6
JK7
JK5
JK6
JK7
JK8
JK9
CRASH2
IC23 - IC25
IC18, IC27
MIDI IN
MIDI OUT
JK300
JK301
IC1
IC8
IC6
IC7
IC3
IC12
IC19
IC16
IC22
JK3
S W 3
JK1
JK400
JK1
JK2
Q15
IC11
IC13
IC14
VR1
D
A
A
D
A
A
A
+
A
9
-9
A
A
A
A
A
A
A
A
A
A
A
A
A
+5
D
+
D
3.3
+5
D
8.25MHz
1
4
a
b
c
d
e
f
g
dp
1
2
1
2
1
2
2
1
3
1
2
4
1
2
3
1
2
1
2
1
2
1
2
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
7.2MHz
1
4
1
2
3
11
12
13
21
22
23
1
2
4
1
2
1
2
3
1
2
3
1
2
1
4
2
5
3
1
2
3
4
5
10
9
1
4
2
5
3
1
2
3
4
5
10
9