FO-50RA
FO-70RA
Analog signal block
6/6
6 – 6
1
2
6
4
3
5
BD
E
F
G
I
H
C
A
BD
E
F
G
I
H
C
A
1
2
6
4
3
5
–
+
+5V
+5VA
+5V
–
+
–
+
+5VA
+5V
(1-1D)
RCVOL
TELOUT
CNLIUA-1
C192
1
R170
51K
C195
820P
R171
3.3K
1
2
3
IC7
2904
R172
15K
R154
100
N.M.
C179
Q2
RNC1402
R153
6.8K
R155
12K
C183
1
D2
1SS355
TELOUTI
(3-4H)
SIGTX
(3-4H)
TXOUT
CNLIUA-8
(3-3H)
SPOUT
6
4
5
2
3
1
7
8
+5V
R178
100K
C201
220P
R161
220K
C4
47/25
SP+
DG
SP–
CNSP-1
CNSP-2
(1-5A)
SPMUTE
C200
1
DG
DG
(1-1F)
BZOUT
R177
1K
C206
4700P
R164
20K
RXIN
CNLIUA-7
C198
1
R175
118K
R156
0
7
6
5
R157
3.3K
R159
118K
C182
33P
DG
R160
0
C184
1
R158
N.M.
SIGRX
(3-4H)
CML
(1-5A)
Q4
TELIN
CNLIUA-2
C197
0.1
C194
0.022
R176
47K
RCVOL
(1-1D)
R173
30K
R174
Q3
RNC1402
DG
DG
C223
0.1
D3
1SS355
IC7
2904
DG
DG
R179
100K
C204
0.01
R163
15K
C188
0.1
IC6
NJM2113
C186
1
(3-1D)
TXMUTE
DG
Q6
RNC1402
L109
0
DG
L110
0
+24VA
DG
C193
1
DG
8
4
N.M.
DG
C9
47/25
DG
DG
R181
1
C185
0
C203
C187
C199
N.M.
DG
Summary of Contents for FO-50
Page 12: ...1 10 FO 50RA FO 70RA M E M O ...
Page 45: ...FO 50RA FO 70RA 3 14 M E M O ...
Page 67: ...FO 50RA FO 70RA Control PWB parts layout Top side 6 7 ...
Page 68: ...FO 50RA FO 70RA Control PWB parts layout Bottom side 6 8 ...
Page 71: ...FO 50RA FO 70RA TEL LIU PWB parts layout Top side 6 11 ...
Page 72: ...FO 50RA FO 70RA 6 12 TEL LIU PWB parts layout Bottom side ...