Power Solutions; Solving Power Problems - Compaq Presario 1600 - Notebook PC Maintenance And Service Manual

Maintenance & Service Guide
Presario 1600 Series Portable Computers
Notice | Preface
Removal & Replacement Procedures

Power Solutions

Solving Minor Problems
Some minor problems and possible solutions are outlined here.
problem appears related to a software application, check the documentation
provided with the software.

Solving Power Problems

Also see Solving Battery and Battery Gauge
Problem
Computer won't turn on and
battery pack is not inserted*.
The computer doesn't timeout
while on AC power
Computer turned off while it was
left unattended and the power icon
is off.
* In rare cases, it may be necessary to remove the power cord and the
battery, wait 30 seconds, and reinsert the power cord to power on the unit.
The above steps reset the keyboard controller which is usually always
powered, even when the computer appears to be off.
Back to Troubleshooting Without Diagnostics
| Home | Product Description
|
Solving Power Problems
Computer is not connected
to a power source.
Power cords to the external
power source are
unplugged.
Power adapter is defective.
The system is designed not
to timeout while on AC
power.
System board is defective.
System initiated Hibernation
due to a critical low-battery
condition.
System initiated Hibernation
after a preset timeout.
| Troubleshooting
Specifications | Connector Pin Assignments
Problems.
Probable Cause
| Illustrated Parts Catalog
| Battery Pack
If the
Solution(s)
Insert battery or connect an
external power source.
Ensure that power cords
connecting the computer and
the external power source
are plugged in properly.
Replace AC Adapter and
restart.
Windows will spin down the
hard drive. Windows can be
configured to power off the
monitor using the display
properties control panel
applet. Alternatively, the
user can change "BIOS-PM
on AC" in the BIOS setup.
Replace the system board.
Replace the battery pack with
a fully charged battery pack
or connect the computer to
an external power source.
Then turn on the computer.
Turn on the computer.