GRAPHTEC GL350, Service Manual

Page: 57 / 58

GL400-UM-251-9370 7-5
7. BLOCK DIAGRAM
Main unit 20ch AMP block
P1
P2
P3
P4
P6
+ -
b + - b
+ - b + - b + -
b
+ - b + - b + - b + - b + - b
3ch 4ch 5ch 1ch 2ch
8ch 9ch 10ch 6ch 7ch
+ -
b + - b
+ - b + - b + -
b
+ - b + - b + - b + - b + - b
13ch 14ch 15ch 11ch 12ch
18ch 19ch 20ch 16ch 17ch
P2
P2
P2
P1
P1
P3 P4
P1
P1
P2
P3
P4
P6
+ - b + - b + - b + - b + - b
+ - b + - b + - b + - b + - b
3ch 4ch 5ch 1ch 2ch
8ch 9ch 10ch 6ch 7ch
+ - b + - b + - b + - b + - b
+ - b + - b + - b + - b + - b
13ch 14ch 15ch 11ch 12ch
18ch 19ch 20ch 16ch 17ch
Amp Board
(GL400-02*)
20ch Relay Board
20ch Relay Board
20ch Termial Board
(GL400-10*)
Secondary
circuit
Secondary circuit
To Main Control
(GL400-01*)
Secondary
circuit
Signal Input circuit
Signal Input circuit Signal Input circuit Signal Input circuit Signal Input circuit Signal Input circuit Signal Input circuit Signal Input circuit Signal Input circuit
Signal Input circuit
Signal Input circuit Signal Input circuit Signal Input circuit Signal Input circuit Signal Input circuit Signal Input circuit Signal Input circuit Signal Input circuit
Signal Input circuit
Signal Input circuit Signal Input circuit
Signal Input circuit Signal Input circuit Signal Input circuit Signal Input circuit Signal Input circuit Signal Input circuit Signal Input circuit Signal Input circuit
Signal Input circuit
Signal Input circuit Signal Input circuit Signal Input circuit Signal Input circuit Signal Input circuit Signal Input circuit Signal Input circuit Signal Input circuit
Signal Input circuit
Signal Input circuit Signal Input circuit
20ch Termial Board
(GL400-04*)
Signal Input circuit
Main Unit AMP Block