HP Presario 1600 Presario Select 1600 Series Maintenance and Service Guide - Page 24

Power Solutions - power adapter

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Maintenance & Service Guide Presario 1600 Series Portable Computers Notice | Preface | Home | Product Description | Troubleshooting | Illustrated Parts Catalog Removal & Replacement Procedures | Specifications | Connector Pin Assignments | Battery Pack Power Solutions Solving Minor Problems Some minor problems and possible solutions are outlined here. If the problem appears related to a software application, check the documentation provided with the software. Solving Power Problems Also see Solving Battery and Battery Gauge Problems. Problem Computer won't turn on and battery pack is not inserted*. Solving Power Problems Probable Cause Computer is not connected to a power source. Solution(s) Insert battery or connect an external power source. Power cords to the external power source are unplugged. Ensure that power cords connecting the computer and the external power source are plugged in properly. Power adapter is defective. Replace AC Adapter and restart. The computer doesn't timeout while on AC power The system is designed not to timeout while on AC power. 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. Computer turned off while it was System board is defective. Replace the system board. left unattended and the power icon System initiated Hibernation Replace the battery pack with is off. due to a critical low-battery a fully charged battery pack condition. or connect the computer to an external power source. Then turn on the computer. System initiated Hibernation Turn on the computer. after a preset timeout. * 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

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Maintenance & Service Guide
Presario 1600 Series Portable Computers
Notice
|
Preface
|
Home
|
Product Description
|
Troubleshooting
|
Illustrated Parts Catalog
Removal & Replacement Procedures
|
Specifications
|
Connector Pin Assignments
|
Battery Pack
Power Solutions
Solving Minor Problems
Some minor problems and possible solutions are outlined here.
If the
problem appears related to a software application, check the documentation
provided with the software.
Solving Power Problems
Also see
Solving Battery and Battery Gauge Problems
.
Solving Power Problems
Problem
Probable Cause
Solution(s)
Computer won't turn on and
battery pack is not inserted*.
Computer is not connected
to a power source.
Power cords to the external
power source are
unplugged.
Insert battery or connect an
external power source.
Ensure that power cords
connecting the computer and
the external power source
are plugged in properly.
Power adapter is defective.
Replace AC Adapter and
restart.
The computer doesn't timeout
while on AC power
The system is designed not
to timeout while on AC
power.
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.
Computer turned off while it was
left unattended and the power icon
is off.
System board is defective.
Replace the system board.
System initiated Hibernation
due to a critical low-battery
condition.
Replace the battery pack with
a fully charged battery pack
or connect the computer to
an external power source.
Then turn on the computer.
System initiated Hibernation
after a preset timeout.
Turn on the computer.
* 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