Furuno BACK GP-80 - Manual (Page 76)

A-4
Schematic diagrams
DATA1 port (output)
Output drive capability: Max. 10mA
1
2
6
6
7
8
DATA 1
J5
TD-A
TD-B
FL14
FL1
MJ-A6SRMD
20P8147
U35
SN75ALS172
DATA 1 port (input)
1
J5
2
3
4
5
6
RD-H
RD-C
1
3
4
5
FL11
DATA 1
20P8147
MJ-A6SRMD
R77
100
Fl12
CR13
1SS226
PC-400
U17
+5V
R64
2.2K
R108
390
JP6