A2File No.123 45678
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123 45678 91 0 11
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AKAI professional M. I. Corp.
PB1/AN1
1
PB0/AN0
2
AVss
3
TEST
4
X2
5
X1
6
Vss
7
OSC1
8
OSC2
9
RST
10
P90/FVPP
11
P91
12
P92
13
P93
14
P94
15
IRQ0
16
P60
17
P61
18
P62
19
P63
20
P64
21
P65
22
P66
23
P67
24
P50/INT0
25
P51/INT1
26
P52/INT2
27
P53/INT3
28
P54/INT4
29
P55/INT5
30
P56/INT6
31
P57/INT7
32
VCC
33
P73
34
P74/TMRIV
35
P75/TMCIV
36
P76/TMOV
37
P77
38
P80/FTCI
39
P81/FTOA
40
P82/FTOB
41
P83/FTIA
42
P84/FTIB
43
P85/FTIC
44
P86/FTID
45
P87
46
P20/SCK3
47
P21/RXD
48
P22/TXD
49
P32/SO1
50
P31/SI1
51
P30/SCK1
52
P10/TMOW
53
P14/PWM
54
P15/IRQ1
55
P16/IRQ2
56
P17/IRQ3/TRGV
57
AVcc
58
PB7/AN7
59
PB6/AN6
60
PB5/AN5
61
PB4/AN4
62
PB3/AN3
63
PB2/AN2
64
HD64F3644H
IC1
HD6433641RC21H
R2 330
C10 10/16
C11 0.1
TIME
GAP
FBACK
DAMP
LEVEL
RAITO
MODE-SW
R4
100K
R5
12K
DSP8
DSP7
DSP6
DSP5
DSP4
DSP3
DSP2
DSP1
TIME
GAP
FBACK
DAMP
LEVEL
RAITO
MODE-SW
ON/OFF
TAP
LED-GND
D+5V
D+5V
D+5V
C6
0.1
1
2
3
4
P4
B4B-PH-K
R7
47K
R6
47K
D+5V
C5
10/16
2
3
1
J1
HTJ-020-05A
D1
1N4002
C1 10/16
C2
0.1
Vin
1
GND
2
Vout
3
IC8
NJM78M05DL1A
C3 10/16
C4
0.1
D+5V+9V D+5V
TSTI1
1
OPCL
2
PDAD
3
PDDA
4
PD
5
RST
6
TSTIO1
7
TSTIO2
8
TSTIO3
9
DVB
10
DVB
11
SDIN2
12
SDAD
13
SDOUT2
14
SDDA
15
SDDA2
16
SDOUT3
17
SDOUT1
18
SDIN1
19
SMODE
20
BCLK
21
LRCK
22
CLKO
23
DVDD
24
DVSS
25
XTI
26
XTO
27
TSTI2
28
CS
29
WRQ
30
DVSS
31
IO0
61
DVDD
32
IO1
62
SCLK
33
IO2
63
SI
34
IO3
64
WRDY
35
IO4
65
DRDY
36
IO5
66
SO
37
IO6
67
CASRF
38
IO7
68
RASCE
39
DVSS
69
WE
40
DVDD
70
A16
41
DZFSET
71
A15
42
DVSS
72
A14
43
DVDD
73
A13
44
DVB
74
A12
45
DVB
75
A11
46
DZF2
76
A10
47
DZF1
77
A9
48
NC
78
DVSS
49
AVB
79
DVDD
50
AOUTR2
80
A8
51
AOUTL2
81
A7
52
NC
82
A6
53
AOUTR1
83
A5
54
AOUTL1
84
A4
55
VRDAL
85
A3
56
AVSS
86
A2
57
AVDD
87
A1
58
VRDAH
88
A0
59
NC
89
OE
60
AINR-
90
AINR+
91
AINL-
92
AINL+
93
VCOM
94
VRADL
95
AVSS
96
AVDD
97
VRADH
98
AVB
99
NC
100
DSP
AK7712A-VT
IC2
AK7712A-VT
R8
10K
C18
0.01
X1
16.9344MHz
D+5V
C20
20P
C19
20P
C27
0.1
DSP7
DSP6
DSP5
DSP4
DSP3
DSP1
DSP2
CASRF
RASCE
WE
A+5V
D+5V
C15 0.1
C14 220/10
C16
220/10
C17
0.1
C25
0.1
C12
0.1
C13
10/16
C26 0.1
D+5V
RA8
RA7
RA6
RA5
RA4
RA3
RA2
RA1
RA0
RD0
RD1
RD2
RD3
RD4
RD5
RD6
RD7
OE
DSP8
1
2
3
4
5
6
7 10
11
12
13
14
15
VCC
16
D
Q
CK
CLK
D
QCK
CLK
D
Q
CK
CLK
D
Q
CK
CLK
D
QCK
CLK
D
Q
CK
CLK
8 9
IC4
HD74HC174FP
1
2
3
4
5
6
7 10
11
12
13
14
15
VCC
16
1B
1Y
2B
GND
8 9
2Y
1A
2A
4A
4B
3A
3B
G
4Y
3Y
S
IC5
HD74HC157FP
1
2
3
4
5
6
GND
7
8
9
10
11
12
13
VCC
14
CK
PR
Q
Q
D
CLR
CK
PR
Q
Q
D
CLR
IC6
HD74HC74FP
VCC
1
DQ1
2
DQ2
3
DQ3
4
DQ4
5
WE
6
RAS
7
A0
10
A1
11
A2
12
A3
13
VCC
14
DQ8
27
VSS
28
NC
8
A10R
9
VSS
15
A4
16
A5
17
A6
18
A7
19
A8
20
A9
21
OE
22
CAS
23
DQ5
24
DQ6
25
DQ7
26
IC3
MSM5117800D-60J
C28
0.1
D+5V D+5V
C30 0.1
RD7
RD6
RD5
RD4
RA7
RA6
RA5
RA4
RA8
RA4
RA1
RA2
RA3
D+5V
RD0
RD1
RD2
RD3
RA3
RA2
RA1
RA0
C29 0.1
D+5V
2
4
3
1
J301
HTJ-064-13H
2
4
3
1
J306
HTJ-064-13H
2
4
3
1
J305
HTJ-064-13H
2
4
3
1
J304
HTJ-064-13H
2
4
3
1
J303
HTJ-064-13H
2
4
3
1
J302
HTJ-064-13H
TR301
2SK930 D
R301
2.2M
C301
10/16
R302
22K
R303
680K
R304
2.2K
C302
10/16
+9V
R320
1K
R319
1K
R318
1K
R317
1K
R316
1K
R315
100K
VREF+9V
R308 10K
R309
100K
R313
10K
R312
10K
R311
10K
R310
10K
C305
47/16
VREF+9V
R314
10K
C306
100P
C308
10/16
R305
10K
R306
12K
C303
100P
C307
10/16
VREF+9V
+9V
C310
0.01
C309 10/16
C304
10/16
R307
470K
2
3
1
84
IC301A
NJM4558M
7
6
5
IC301B
NJM4558M
C151
10/16
R151
10K
7
6
5
IC102B
NJM2904M
R152
10K
C152
100P
VREF+5V
2
3
1
84
IC102A
NJM2904M
R153
10K
R157
4.7K
VREF+5V
A+5V
C156
0.01
C155 10/16
R154
10K
C153
100P
R155
330
R156
330
R158
4.7K
C154
1500P
3
2
1
84
IC101A
NJM2904M
R104
100K
R103
100K
7
5
6
IC101B
NJM2904M
R101
100K
R102
100K
+9V
C105
0.01
C104
10/16
+9V
A+5V
C102 10/16C101 10/16
VREF+9V
VREF+5V
3
2
1
84
IC103A
NJM4558M
R123
5.6K
C122
470P
R122
100K
C124
220P
R121
10K
C121
10/16
VREF+9V
+9V
C116
0.01
C115 10/16
C123
10/16
R124
100K
R113
5.6K
C112
470P
R112
100K
C114
220P
R111
10K
C111
10/16
VREF+9V
C113
10/16
R114
100K
7
5
6
IC103B
NJM4558M
3
2
1
84
IC104A
NJM4558M
R143
5.6K
C142
470P
R142
100K
C144
220P
R141
10K
C141
10/16
VREF+9V
+9V
C136
0.01
C135 10/16
C143
10/16
R144
100K
R133
5.6K
C132
470P
R132
100K
C134
220P
R131
10K
C131
10/16
VREF+9V
C133
10/16
R134
100K
7
5
6
IC104B
NJM4558M
13
54
2
VR201
RK09L1140 103B
13
54
2
VR202
RK09L1140 103B
13
54
2
VR203
RK09L1140 103B
13
54
2
VR204
RK09L1140 103B
13
54
2
VR205
RK09L1140 103B
13
54
2
VR206
RK09L1140 103B
R201
4.7K
R202
4.7K
R203
4.7K
R204
4.7K
R205
4.7K
R206
4.7K
TIME.
D201
L-934SGD GREEN
D205
L-934SRD-G RED
TR201
DTC114EKA
TR205
DTC114EKA
R208
47K
R219 47K
R213
1.5K
R209
680
C205
10/16(MS5)
R218
10K
C201
10/16(MS5)
R214
1K
TAPE ECHO/
D+5V.
D+5V.
TIME.
GAP.
FBACK.
DAMP.
LEVEL.
RATIO.
MODE-SW.
LED-ON/OFF.
LED-TAP.
D+5V.
TIME GAP FEED BACK HF DAMP LEVEL RAITO
SW901
SB-285
SW902
SB-285
ON/OFF
PLAY/STOP
TAP TEMPO
REC/OVER DUB
FOOT SW
GAP.
FBACK.
DAMP.
LEVEL.
RATIO.
LED-TAP.
MODE-SW.
LED-ON/OFF.
C22
0.1
C21
220/10
INPUT
HD4 OUT
HD3 OUT
HD2 OUT
HD1 OUT
MIX OUT
DC IN 9V UNLESS OTHERWISE SPECIFIED
ALL RESISTORS IN OHMS 1/6W
ALL CAPACITORS IN uF,P=PF
ALL ERECTROLYIC CAPACITORS IN uF/WV
NOTE:
C103 10/16
C316
1000P
C315
1000P
C314
1000P
C313
1000P
C312
2200P
W901
WIRE ASSY L8024(2) PH 4P
R9
12K
JW51
D-GNDA-GND
D202
L-934SGD GREEN
TR202
DTC114EKA
R210
680
C202
10/16(MS5)
R215
1K
D203
L-934SYD YELLOW
TR203
DTC114EKA
R211
1.8K
C203
10/16(MS5)
R216
1K
D204
L-934SRD-G RED
TR204
DTC114EKA
R212
1.5K
C204
10/16(MS5)
R217
1K
SW201
SKHHAM004A (SKHHAMA010)
3
2
1
4 5
SW202
SSSU011700
3
2
1
4 5
SW203
SSSU011700
R207
47K
NORMAL DELAY/
LOOPING REC
LED-REC.
LED-DELAY.
LED-ECHO.
L-LEVEL.
L-TIME.
L-TIME
L-LEVEL
TAP
LED-REC
ON/OFF
LED-DELAY
LED-ECHO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
P2
B16-PH-K 16P
LED-REC
LED-DELAY
LED-ECHO
L-LEVEL
L-TIME
LED-REC.
LED-DELAY.
LED-ECHO.
L-LEVEL.
L-TIME.
JW52
A+5V
VCC
2
RST
1
GND
3
IC7
DS1811R-10
R145
10K
R135
10K
R125
10K
R115
10K
C137
10/16
C147
10/16
C127
10/16
C117
10/16
LED-GND.
C33 0.1
C32 0.1
C31
0.1
C24
0.1
JW53
LED-GND
R220
680
R221
680
10K
TR320
DTC114TKA
10K
TR321
DTC114TKA
10K
TR322
DTC114TKA
R321
22K
47K
47K
TR323
DTA144EKA
TR325
DTC114EKA
TR324
DTC114EKA
D+5V
1
2
3
4
5
6
7
8
W201-1
WIRE ASSY L8024(1) SAN-PH 16P(1)
1
2
3
4
5
6
7
8
W201-2
WIRE ASSY L8024(1) SAN-PH 16P(2)
JW50
JW1
SCHEMATIC DIAGRAM
L8024A5010
E2
C34
220/10
R10
4.7K
C23
20P
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