compaq notebook evo n160 series User Manual

2–14Maintenance and Service Guide
Troubleshooting
2.12 No OS Loading from Hard Drive, Part 3
Y
System
files on hard
drive? Continued from
Section 2.11,
No OS Loading
from Hard Drive,
Part 2.
Clean virus.
Done
N
Install OS
and reboot.
Virus
on hard
drive?OS
loading from
hard drive?
Y
NY
N
Y
N
Diagnostics
on diskette?Replace
hard drive.
Run diagnostics
and follow
recommendations. Run SCANDISK
and check for
bad sectors.
Can bad
sectors
be fixed?Replace
hard drive.
YN
YN
Fix bad
sectors.Boot from
hard...

Troubleshooting
Maintenance and Service Guide2–15
2.13 No OS Loading from Diskette Drive
Done
Y
N
Reseat
diskette drive. OS not loading
from
diskette drive.
Done
Y
YY Y
Y
Y Y N
N
N NN
NN
OS
loading?
Nonsystem
disk message?Bootable
diskette
in drive?Install bootable
diskette and
reboot computer.
Check diskette
for system files.
Tr y d i f f e r e n t
diskette.
1. Replace
diskette drive.
2. Replace system
board. Nonsystem
disk error?
OS
loading? Boot
from another
device?
Enable drive
andcoldboot
computer....

2–16Maintenance and Service Guide
Troubleshooting
2.14 No OS Loading from CD- or
DVD-ROM Drive
Y
Done
N
Bootable
disc in
drive? Disc
in drive? No OS
loading from
CD- or
DVD-ROM drive.Install bootable
disc and
reboot
computer.
Go to
Section 2.17,
Nonfunctioning
Device.
Go to
Section 2.17,
Nonfunctioning
Device. Install
bootable disc.
Boots from
CD or DVD?
Boots from
CD or DVD?Try another
bootable
disc.
Booting
from another
device?
Booting
order
correct?
Correct boot
order using
the setup utility.Done...

Troubleshooting
Maintenance and Service Guide2–17
2.15 No Audio, Part 1
No audio
N
Notebook in
docking station
(if applicable)?Internal
audio?
Audio? Done
Undock
Audio? Done Turn up audio
internally or
externally.
Go to
Section 2.16,
No Audio, Part 2.
Go to
Section 2.16,
No Audio, Part 2.
Go to
Section 2.17,
Nonfunctioning
Device.Replace the following docking station
components one at a time as applicable.
Check after each change.
1. Reseat docking station audio cable.
2. Replace audio cable.
3. Replace...

2–18Maintenance and Service Guide
Troubleshooting
2.16 No Audio, Part 2
YN
Continued from
Section 2.15,
No Audio, Part 1.
Reload
audio drivers. Audio
driver in OS
configured?
Audio?
1. Replace internal speakers.
2. Replace audio board, if applicable.
3. Replace system board.
Y Y
Y N N N
Correct
drivers for
application?
Connect to
external
speaker.Load drivers and
set configuration
in OS.
Audio? Done Replace audio
board and
speaker
connections in
notebook, if
applicable. 

Troubleshooting
Maintenance and Service Guide2–19
2.17 Nonfunctioning Device
Done
Any
physical
device?
Y
N
Unplug the nonfunctioning device
from the notebook, inspect cables
and plugs for bent or broken pins or
other damage.
Reseat
device.
Clear
CMOS.
DoneFix or
replace
broken item. Nonfunctioning
device
Reattach device.
Close notebook,
plug in power,
and reboot.
Device
boots
properly?Go to
Section 2.9,
No OS Loading.
Device
boots
properly? Possible bad hard
drive. Replace
drive.
Possible bad
diskette...

2–20Maintenance and Service Guide
Troubleshooting
2.18 Nonfunctioning Keyboard
Y
N
OK? Keyboard
not operating
properly.
External
device
works?Replace
system
board.
Replace
system
board. Connect notebook
to good external
keyboard.
Reseat internal
keyboard
connector (if
applicable).
Replace internal
keyboard or
cable.
OK?
Y N
Y
N
DoneDone 

Troubleshooting
Maintenance and Service Guide2–21
2.19 Nonfunctioning Pointing Device
Y
N
OK? Pointing device
not operating
properly.
External
device
works?Replace
system
board.
Replace
system
board. Connect notebook
to good external
pointing device.
Reseat internal
pointing device
connector (if
applicable).
Replace internal
pointing device or
cable.
OK?
Y N
Y
N
DoneDone 

2–22Maintenance and Service Guide
Troubleshooting
2.20 Network or Modem Connection Problems
Y
Disconnect all
power from
the notebook
and open.
No network
or modem
connection.
N
Done Digital
line?
Network
or modem jack
active?Replace jack or
have jack
activated.
Connect
to non-digital
line.
NIC/modem
configured in OS?Reload
drivers and
reconfigure.
Reseat
NIC/modem if
applicable.Replace
NIC/modem if
applicable.
Replace
system
board.OK?
OK? Done
N N
N N Y
Y Y
Y 

Maintenance and Service Guide3–1
3
Illustrated Parts Catalog
This chapter provides an illustrated parts breakdown and a 
reference for spare part numbers and option part numbers.
3.1 Serial Number Location
When ordering parts or requesting information, provide the 
computer serial number and model number located on the bottom 
of the computer (Figure 3-1).
Figure 3-1. Serial Number Location