Riso GR 3770 - Page 76

DESCRIPTION OF PCBs
SYSTEM PCB2
GR3770 APX(II)-8
CN9
Br
Rd
Or
Yw
Gr
Bl
Vt
Gy
Wh
Bk
Br
Rd
Or
Yw
Gr
Bl
Vt
Gy
Wh
Bk
Br
Rd
Or
Yw
Gr
Bl
Vt
Gy
Wh
Bk
Br
Rd
Or
Yw
Gr
Bl
Vt
Gy
Wh
Bk
Rd
Rd
50pins
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
1
2
Br
Rd
Or
Yw
Gr
Bl
Vt
Gy
Wh
Bk
Pk
Bk
Gr
Wh/Rd
Wh
Wh/Gr
Wh
Rd
Bl
Rd
Bk
Wh
Or
S
Pressure solenoid
1
2
Bl
Rd
Vt
Gy
Wh
Bk
Br
Rd
Or
Yw
Gr
Bl
Vt
Gy
Wh
Bk
Br
Rd
SW1
SW2
SW3
SW4
VR
SEN
SEN
Pressure control motor
Pressure control encoder
Pressure control sensor
Paper detection sensor
SW
M
SEN
M
SW
SW
Wing motor
Jump wing switch 1
(Drive mechanism side)
Paper rcv. sensor 1 (send)
Print positioning motor
Paper size potentiometer
Paper size detection
sensor
GND1
+5V
GND1
LOW when blocked
LOW when blocked
+5V
LOW in operation
+24V
LOW in operation
+24V
Bl
Rd
Bk
Wh
Br
Rd
Or
Yw
Gr
Bl
Vt
41
42
43
44
45
46
47
48
49
50
Bl
Rd
Bk
Wh
Br
Rd
Or
Yw
Gr
Bl
Vt
Vt
Vt
Gy
Wh
Bk
SEN
SW
Paper feed det. sensor/
Paper sensor (send)
Paper feed clutch
Suction fan clutch
CL
Stack paper feed switch
1
2
3
4
SF3000
(Option)
1
2
3
4
5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Br
Rd
Or
Yw
Gr
Bl
Vt
Gy
Wh
Bk
Br
Rd
Or
Yw
Gr
Bl
Bk
Or
Bk
Gr
SEN
M
SEN
SEN
Jump wing switch 2
(Operation panel side)
Paper rcv. sensor 2 (send)
Paper cassette size
sensor
Paper feed tray safety
switch (Lower)
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
Bk
Or
Bk
Wh
Gy
Or
Bk
Bk
Br
Or
1
2
CL
SEN
Paper feed det. sensor/
Paper sensor (rcv.)
To Paper feed tray
safety switch (upper)
A
A