Roland ep-97 Service Notes

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12
11
EP-77
Dec, 1999
CONTROL PCB ASSY & CIRCUIT DIAGRAM ASSY 7711502000
View from component side
SW 111
EVQPAE05R
12
SW108
EVQPAE05R
12
SW109
EVQPAE05R
12
SW102
EVQPAE05R
12
SW113
EVQPAE05R
12
SW115
EVQPAE05R
12
SW101
EVQPAE05R
12
SW112
EVQPAE05R
12
SW106
EVQPAE05R
12
SW104
EVQPAE05R
12
SW103
EVQPAE05R
12
SW105
EVQPAE05R
12
Q108
DTC114ES
3
12
SW110
EVQPAE05R
12
SW107
EVQPAE05R
12
LED101
TLHR-4401
12
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
Q106
DTC114ES
3
12
Q107
DTC114ES
3
12
C101
100nF
C103
100nF
R101
1K8
R102
1K
R103
1K
R106
100
R107
100
R108
100
C102
100/16
Q101
RN2227
3
21
Q102
RN2227
3
21
Q103
RN2227
3
21
Q104
RN2227
3
21
Q105
RN2227
3
21
D101
1N4148
12
D102
1N4148
12
D103
1N4148
12
D104
1N4148
12
D105
1N4148
12
D106
1N4148
12
D110
1N4148
12
D108
1N4148
12
D109
1N4148
12
D107
1N4148
12
D111
1N4148
1
2
D112
1N4148
12
D113
1N4148
12
D114
1N4148
1
2
R105
1K
R104
1K
D115
1N4148
12
LED106
12
LED107
SPR-325MVW
12
3
LED105
12
LED104
12
LED103
12
LED102
12
C106
68pF
VR1B
4
6
5
C107
68pF
C105
100nF
VR1A
RK14K1230
1
3
2
CN102
53014-0610
3 4 2 1 5 6
CN101
53014-1010
3
4
5
6
7
8
2
1
9
10
SW114
EVQPAE05R
12
IC102B
74HC08
4
5
6
IC102D
74HC08
12
13
11
IC102C
74HC08
9
10
8
C104
100nF
IC102A
74HC08
1
2
3
14 7
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
SCAN C
SCAN B
SCAN A
LED EN
DATA 0
DATA 1
DATA 2
DATA 3
To Main Board (CN3)
To Jack Board (CN6)
MAXMIN
TOP WIEV
VOLUME BOARD
(10KBx2)
SEND L
SEND R
RET L
RET R
AGND
AGND
POWER
REVERB
CHORUS
PIANO 1
PIANO 2
ORGAN
HARPSI
VIBRAPHONE
E.PIANO
STRINGS
CHOIR
DEMO
PLAY
SOUND
REC
ON/OFF
REVERB
CHORUS
DEMO REC
PLAY ON/OFF
4 512 36n
TLHR-4401
TLHR-4401
TLHR-4401
TLHR-4401
TLHG-4401

Roland ep-97 Specifications

General

Brand	Roland
Model	ep-97
Category	Musical Instrument
Language	English