Canon FAX L1000 Service Manual page 339

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