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-38.png)
2–12 Maintenance and Service Guide
Troubleshooting
Flowchart 2.2 - No Power, Part 1
1. Reseat the power cables in the docking
station and at the AC outlet.
2. Ensure that the AC power source is active.
3. Ensure that the power strip is working.
Done
Remove from
docking station
(if applicable).
Power up
on battery
power?
Power up
on AC
power?
Power up
in docking
station?
Power up
on battery
power?
Power up
in docking
station?
Done
*Reset
power.
*Reset
power.
Power up
on AC
power?
N
Y
Y
N
N
Y
N
N
Y
Y
YN
* On some models there is a separate reset
button. On some models the computer may be
reset using the Standby switch and either the
lid switch or the main power switch.
Go to
Flowchart 2.4,
No Power,
Part 3.
Go to
Flowchart 2.3,
No Power,
Part 2.
Go to
Flowchart 2.8,
Nonfunctioning
Docking Station.
No power
(power LED
is off).
272638-001.book Page 12 Thursday, July 25, 2002 4:21 PM