Roland EP-70 User Manual

ep-70/90 Feb. 2000
21
CIRCUIT DIAGRAM (SWITCH, B&T)
AD-BEAT
VREF
AD TEMPO
GREEN LED-0
RED LED-2
RED LED-0
RED LED-3
RED LED-1
+
5D
D
D
+
5D
+
5D
D
D D
D
D D D
D
+
5D
D
+
5D
+
5D
DD
+
5D
+
5D
D
CN101
51048-1000
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
IC102B
TC74HC08P
4
5
6
IC102A
TC74HC08P
1
2
3
IC102C
TC74HC08P
9
10
8
R102
1K
R103
1K
R104
1K
R105
1K
LED103
SL R-325VC
12
R106
100
R107
100
R108
100
IC102D
TC74HC08P
12
13
11
C104
DD@
0.1
R110
1.5K
R111
1.5K
R112
1.5K
R109
1.5K
VR101A
RK11 K111@
1
2
3
4
R101
1.8K
C110
DD@
0.1
R115
1K
R113
100
C109
DD@
0.1
R114
68K
Q105
RN2227
3
2 1
IC102E
TC74HC08P
147
SW111
1 2
SW108
1 2
SW109
1 2
SW102
1 2
SW113
1 2
SW115
1 2
SW101
1 2
SW112
1 2
SW106
1 2
SW114
1 2
SW104
1 2
D105
1SS133
12
D104
1SS133
12
D113
1SS133
12
D112
1SS133
12
D106
1SS133
12
D114
1SS133
1 2
D115
1SS133
12
SW103
1 2
SW105
1 2
LED107
SPR-325MVW
12
3
SW116A
SRBV15
1
2 3 410 5 6
SW116B
SRBV15
20
30
LED105
SL R-325VC
12
C108
ECQV@
0.33
D101
1SS133
12
D103
1SS133
12
LED102
SL R-325VC
12
D102
1SS133
12
D109
1SS133
12
D108
1SS133
12
D111
1SS133
12
C102
ECEA-KA@
100/6.3
C101
DD@
0.1
IC101
TC74HC138P
C
3
B
2
A
1
G2B
5
G2A
4
G1
6
Y7
7
Y6
9
Y5
10
Y4
11
Y3
12
Y2
13
Y1
14
Y0
15
VCC
16
GND
8
C103
DD@
0.1
Q107
DT C114ES
3
1 2
Q103
RN2227
3
2 1
Q104
RN2227
3
2 1
Q101
RN2227
3
2 1
Q108
DT C114ES
3
1 2
Q102
RN2227
3
2 1
Q106
DT C114ES
3
1 2
C105
DD@
0.1
C107
DD@
68P
C106
DD@
68P
VR102A
RK14K123@
00459901
11
12
13
VR102B
RK14 K123@
00459901
21
22
23
VR102C
RK14 K123@
00459901
10
20
LED106
SLR-325MC
12
VR101B
RK11K111@
10
20
LED104
SL R-325VC
12
SW110
1 2
D110
1SS133
12
D107
1SS133
12
SW107
1 2
CN102
6P-SAN
1
1
2
2
3
3
4
4
5
5
6
6
CN103
4P-SAN
1
1
2
2
3
3
4
4
LED101
LNJ282RKRXE
1 2
To MAIN BOARD
CN4
To JACK BOARD
CN6
To MAIN BOARD
CN3
B&T BOARD ASSY
SWITCH BOARD ASSY
POWER
Volume
TEMPO BEAT
Reverb Organ Strings
Chorus Harpsichord Choir Sound
Reverb
Chorus
Piano1 Vibraphone Demo Rec Demo Rec
Piano2 E.Piano Play on/off Play
on/off
／回路図 (SWITCH, B&T)

Roland EP-70 Specifications

General

Brand	Roland
Model	EP-70
Category	Musical Instrument
Language	English