Casio EX-I/O-PB-12, Service Manual

Page: 2 / 33

Table of contents
1. In/On-line board
1-1.To mount the I/O PB-12 in the P/C unit .................................................................. 1
1-2.I/O PB-12 board cables connection ........................................................................ 2
1-3.Interface .................................................................................................................. 3
2. In-line cable, Connector, and Terminator
2-1.In-line cable ............................................................................................................ 4
2-2.In-line connector ..................................................................................................... 5
2-3.In-line connector (ECR side) .................................................................................. 5
2-4.Terminator (This part is included with I/O-PB-12 product) ................................... 5
3. Connection
3-1.Cable connection diagram ...................................................................................... 6
3-2.Connection on the PC side ..................................................................................... 6
3-3.Connection on the end of in-lline cable .................................................................. 6
3-4.Connector between ECRs ...................................................................................... 6
4. Circuit explanations
4-1.Block diagram ........................................................................................................ 7
4-2.ISA bus .................................................................................................................. 7
4-3.C-Inline ................................................................................................................... 8
4-3.Timing Chart ......................................................................................................... 11
5. Diagnostic
5-1.Summary .............................................................................................................. 12
5-2.Files ...................................................................................................................... 12
5-3.Hardware .............................................................................................................. 12
5-4.Procedure ............................................................................................................. 12
5-5.Operation .............................................................................................................. 13
6. IC data ..................................................................................................
21
7. PCB layout ...........................................................................................
22
8. Circuit diagram ....................................................................................
23
9. Parts list ...............................................................................................
29