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SCHEMATIC DIAGRAM-11
C
CPC 1/2 CIRCUIT
CN2
DE
1
X1
EFOEC4004T3
CM3
2
CM3
CM2
3
CM2
SEG10
SEG10
4
CPRST
SEG11
5
SEG11
SEG9
6
SEG9
SW3
SW3
7
SW2
8
SW2
SW1
9
SW1
CM0
10
CM0
CM1
CM1
+5P
11
R6
SW0
12
SW0
100
SEG8
13
SEG8
DE
14
PSW
R9
CN1
10K
SCK
DATA
1
DE
2
+5P
DATA
3
SCK
4
5
CPRST
PSW
6
7
DE
L1
UNLESS OTHERWISE SPECIFIED:
SWITCHES ARE EVQ21507K,
DIODES ARE RVD1SS133TA.
IC1
SW0
C2BBDB000023
(8BIT MICROCOMPUTER)
R16
SW0
23
SW1
R17
SW1
24
SW2
+5P
R18
22
VDD
SW2
42
SW3
C3
R19
0.047
21
VSS
SW3
1
SW4
R20
19
XIN
SW4
26
SW5
R8
R21
33K
20
XOUT
SW5
27
SW6
R22
R5 100
25
RST
SW6
28
C4
SW7
0.047
R23
18
VREF
SW7
2
C2
6V47
10
ID
R11
CM0
9
R7
10K
5
SIN
R12
SOUT
CM1
4
8
3
CLK
R13
CM2
7
29
CNTR1
R14
CM3
6
R15
CM4
17
CM5
16
11 ADD
SEG0
34
A
SEG1
35
B
SEG2
36
C
SEG3
37
D
SEG4
38
E
SEG5
39
F
SEG6
40
G
SEG7
41
H
SEG8
15
I
SEG9
14
J
SEG10
13
12
L
+5P
10K
D1
10K
D2
10K
D3
10K
D4
10K
D5
10K
10K
10K
Q1
2SA830STPB
10K
Q2
2SA830STPB
10K
Q3
2SA830STPB
10K
Q4
2SA830STPB
10K
Q5
2SA830STPB
10K
R27
R28
+5P
68
68
C5
0.047
14
12
10
VCC
GND
7
13
11
E
D
K
D9
SW9
SW1
PIANO
SUSTAIN
SW2
SW10
D10
DIGTAL
STRINGS
EFFECT
VOCAL
SW11
SW3
D11
GUITAR&
CHORUS
HARPSI
SW12
SW4
D12
ORGANE
MULTI
ACCORDION
EFFECT
D13
SW5
SW13
REVERB
BRASS
SW14
D14
SAX&
WOODWIND
D15
SW15
SYNTH
SW16
D16
MALLET&
ORCH PERC
D101
D102
LN282RPXVTX3
LN282RPXVTX3
DIGTAL
SUSTAIN
EFFECT
D109
D110
LN282RPXVTX3
LN282RPXVTX3
STRINGS
PIANO
VOCAL
D117
D118
LN282RPXVTX3
LN282RPXVTX3
DRAM
BASS
KITS
D125
D126
LN282RPXVTX3
LN282RPXVTX3
PART SELECT
PART SELECT
RIGHT 1
LEFT
D133
D134
LN282RPXVTX3
LN282RPXVTX3
INTRO&
INTRO&
ENDING1
ENDING2
R29
R24
R25
68
68
68
R26
68
8
6
4
2
IC2
C0JACB000006
(HEX B UFFERS)
9
5
3
1
F
C
A
B
D17
D18
D19
D20
D21
D22
D23
D24
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