Canon FAX-L1000 - Manual (Page 351)

4-99
FAX-L1000 Chapter 4: Maintenance and Service
TWINS board (J31) ,/ SCNT board (J2)
J31 J2 Signal name Description
18 , 18 CLKCTK Clock control signal
19 , 19 TC Terminal count
20 , 20 DACK2 DMA acknowledge signal 2
21 , 21 DACK5 DMA acknowledge signal 5
22 / 22 DREQ2 DMA request signal 2
23 / 23 DREQ5 DMA request signal 5
24 / 24 OPTION0 Option board detection signal 0
25 / 25 OPTION1 Option board detection signal 1
26 . 26 DGND Ground
27 / 27 PPRDY Printer power ready signal
28 / 28 TOP Top of page signal
29 / 29 STS Status signal
30 , 30 CBSY Command busy signal
31 , 31 PRFD Pre-Feed signal
32 . 32 DGND Ground
33 , 33 CCLK Controller clock signal
34 , 34 VDO Printer video signal
35 , 35 CCRT Condition change report signal
36 , 36 MODRST MODRST
37 / 37 +5V Logic drive voltage
38 / 38 OPTION2 Option board detection signal 2
39 / 39 SCEN Printer panel data receive enable signal
40 , 40 CSITX Printer panel data transmission signal
41 / 41 +12V +12V
42 . 42 AGND Analog ground
43 / 43 +24V +24V
44 / 44 +24V +24V
45 / 45 DGND Ground
46 / 46 +5V +5V
47 , 47 +5V +5V(off while ESS)
48 . 48 DGND Ground
49 , 49 +3.3V +3.3V
50 . 50 DGND Ground
51 . 51 VD15 Data signal
52 . 52 VD14 Data signal
53 . 53 VD13 Data signal
54 . 54 VD12 Data signal
55 . 55 DGND Ground
56 . 56 VD11 Data signal
57 . 57 VD10 Data signal
58 . 58 VD9 Data signal
59 . 59 VD8 Data signal
60 . 60 DGND Ground