User Guide
Table Of Contents
- Contents
- Product Description
- Troubleshooting
- Illustrated Parts Catalog
- Removal and Replacement Preliminaries
- Removal and Replacement Procedures
- 5.1 Serial Number
- 5.2 Disassembly Sequence Chart
- 5.3 Preparing the Computer for Disassembly
- 5.4 Computer Feet
- 5.5 Memory Expansion Board
- 5.6 Mini PCI Communications Board
- 5.7 Disk Cell RTC Battery
- 5.8 Connector Cover
- 5.9 LED Cover
- 5.10 Keyboard
- 5.11 Heat Spreader
- 5.12 Processor
- 5.13 Display
- 5.14 Palm Rest
- 5.15 Diskette Drive
- 5.16 TouchPad Components
- 5.17 Display Release Assembly
- 5.18 Charger Board
- 5.19 Speaker Assembly
- 5.20 Top Cover
- 5.21 Fan
- 5.22 System Board
- 5.23 Modem Cable
- Specifications
- Connector Pin Assignments
- Power Cord Set Requirements
- Screw Listing
- Index
![](/manual/compaq/900/user-guide-english/images/img-158.png)
A–4 Maintenance and Service Guide
Connector Pin Assignments
Table A-6
Parallel
Pin Signal Pin Signal
1 Strobe* 10 Acknowledge*
2 Data bit 0 11 Busy
3 Data bit 1 12 Paper out
4 Data bit 2 13 Select
5 Data bit 3 14 Auto line feed*
6 Data bit 4 15 Error*
7 Data bit 5 16 Initialize printer*
8 Data bit 6 17 Select in*
9 Data bit 7 18-25 Signal ground
*Signal is active low.
1
14
25
13
272638-001.book Page 4 Thursday, July 25, 2002 4:21 PM