Canon FAX-L1000 - Manual (Page 339)

4-87
FAX-L1000 Chapter 4: Maintenance and Service
SCNT board (J2) ,/ TWINS board (J31)
J2 J31 Signal name Description
87 , 87 +5V +5V
88 , 88 OPTION3 Option board detection signal 3
89 , 89 PCLK Printer panel data transfer clock
90 , 90 CSIRX Printer panel data receive signal
91 , 91 +12V +12V
92 / 92 AGND Analog ground
93 , 93 +24V +24V
94 , 94 +24V +24V
95 . 95 DGND Ground
96 , 96 +5V +5V
97 / 97 +5V +5V(off while ESS)
98 . 98 DGND Ground
99 / 99 +3.3V +3.3V
100 / 100 PWCTL Power control signal
SCNT board (J3) ,/ Contact sensor
Contact
J3 sensor Signal name Description
1 , 1 VOUT Scanner video signal
2 . 2 AGND Analog ground
3 / 3 +5V +5V(Contact sensor)
4 , 4 +ref Reference
5 . 5 DGND Ground
6 / 6 SP Shift pulse
7 / 7 FGND Frame ground
8 / 8 MACLK Contact sensor drive clock
9 / 9 LEDON LED drive control
10 / 10 +24V +24V
SCNT board (J4) ,/ Document feed motor
J4 Motor Signal name Description
1 / 1 PHA Phase A
2 / 2 PHB Phase B
3 . 3 Commongnd Common ground
4 . 4 Commongnd Common ground
5 / 5 PHXA Phase
–
A
6 / 6 PHXB Phase
–
B