Canon FAX L1000 Service Manual page 337

SCNT board (J2) ,/ TWINS board (J31)
J2 J31
/
1 1
/
2 2
/
3 3
/
4 4
/
5 5
/
6 6
.
7 7
.
8 8
.
9 9
.
10 10
.
11 11
.
12 12
,
13 13
,
14 14
/
15 15
,
16 16
/
17 17
/
18 18
/
19 19
/
20 20
/
21 21
,
22 22
,
23 23
,
24 24
,
25 25
.
26 26
,
27 27
,
28 28
,
29 29
/
30 30
/
31 31
.
32 32
/
33 33
/
34 34
/
35 35
/
36 36
,
37 37
,
38 38
,
39 39
/
40 40
,
41 41
.
42 42
,
43 43
FAX-L1000 Chapter 4: Maintenance and Service
Signal name Description
VA5 Address signal
VA4 Address signal
VA3 Address signal
VA2 Address signal
VA1 Address signal
VA0 Address signal
DGND Ground
VD7 Data signal
VD6 Data signal
VD5 Data signal
VD4 Data signal
DGND Ground
INTPIFI1 Interrupt signal 1
INTPIFI2 Interrupt signal 2
VUBE Upper Bite Enable
+5V Logic drive voltage
ALLRST All reset signal
CLKCTK Clock control signal
TC Terminal count
DACK2 DMA acknowledge signal 2
DACK5 DMA acknowledge signal 5
DREQ2 DMA request signal 2
DREQ5 DMA request signal 5
OPTION0 Option board detection signal 0
OPTION1 Option board detection signal 1
DGND Ground
PPRDY Printer power ready signal
TOP Top of page signal
STS Status signal
CBSY Command busy signal
PRFD Pre-Feed signal
DGND Ground
CCLK Controller clock signal
VDO Printer video signal
CCRT Condition change report signal
MODRST Modem reset signal
+5V Logic drive voltage
OPTION2 Option board detection signal 2
SCEN Printer panel data receive enable signal
CSITX Printer panel data transmission signal
+12V +12V
AGND Analog ground
+24V +24V
4-85