Epson EPL-N1200, Руководство по обслуживанию

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Table A-4. CN3 Pin Assignments
Pin No. Signal Name I/O Description
1,39,72 Vss — Ground
2 D0 I/O Data bus bit 0
3 D16 I/O Data bus bit 16
4 D1 I/O Data bus bit 1
5 D17 I/O Data bus bit 17
6 D2 I/O Data bus bit 2
7 D18 I/O Data bus bit 18
8 D3 I/O Data bus bit 3
9 D19 I/O Data bus bit 19
10,30,59 Vcc — +5 VDC
11 RD O Read signal
12 A0 O Memory address bit 0
13 A1 O Memory address bit 1
14 A2 O Memory address bit 2
15 A3 O Memory address bit 3
16 A4 O Memory address bit 4
17 A5 O Memory address bit 5
18 A6 O Memory address bit 6
19 A10 O Memory address bit 10
20 D4 I/O Data bus bit 4
21 D20 I/O Data bus bit 20
22 D5 I/O Data bus bit 5
23 D21 I/O Data bus bit 21
24 D6 I/O Data bus bit 6
25 D22 I/O Data bus bit 22
26 D7 I/O Data bus bit 7
27 D23 I/O Data bus bit 23
28 A7 O Memory address bit 7
29 A19 O Memory address bit 19
31 A8 O Memory address bit 8
32 A9 O Memory address bit 9
33 A20 O Memory address bit 20
34 EEP O +5 VDC
35 RESET — Reset
36 A21 O Memory address bit 21
37 A22 O Memory address bit 22
38 A23 O Memory address bit 23
40 A11 O CAS 0
41 A13 O CAS 2
42 A14 O CAS 3
43 A12 O CAS 1
44 CS0 O RAS 0
45 CS1 O RAS 1
46 A18 — Memory address bit 18
47 WR O Write enable
48 A17 O Memory address bit 17
49 D8 I/O Data bus bit 8
EPL-N1200 Service Manual Appendix A
Rev. A A-7