compaq evo notebook n1020v series User Manual

2–6Maintenance and Service Guide
Troubleshooting
Device Options 
(continued)■Change the parallel port mode from 
Enhanced Parallel Port (EPP, the default 
setting) to standard, bidirectional, EPP or 
Enhanced Capabilities Port (ECP).
■Set video-out mode to NTSC (default), PAL, 
NTSC-J, or PAL-M.*
■Enable/disable all settings in the SpeedStep 
window. (When Disable is selected, the 
computer runs in Battery Optimized mode.)
■Specify how the computer recognizes 
multiple identical docking bases that are...

Troubleshooting
Maintenance and Service Guide2–7
2.2 Using Compaq Diagnostics
When you access Compaq Diagnostics, a scan of all system 
components is displayed on the screen before the Compaq 
Diagnostics window opens.
You can display more or less information from anywhere within 
Compaq Diagnostics by selecting Level on the menu bar.
Compaq Diagnostics is designed to test Compaq components. 
If non-Compaq components are tested, the results may be 
inconclusive.
Obtaining, Saving, or Printing...

2–8Maintenance and Service Guide
Troubleshooting
Obtaining, Saving, or Printing Diagnostic
Test Information
1. Access Compaq Diagnostics by selecting Start > Settings > 
Control Panel > Compaq Diagnostics.
2. Select the Test tab.
3. In the scroll box, select the category or device you want 
to test.
4. Select a test type:
❏Quick Test—Runs a quick, general test on each device in 
a selected category.
❏Complete Test—Performs maximum testing on each 
device in a selected category.
❏Custom Test—Performs...

Troubleshooting
Maintenance and Service Guide2–9
5. Select a test mode:
❏Interactive Mode—Provides maximum control over the 
testing process. You determine whether the test was 
passed or failed, and you may be prompted to insert or 
remove devices.
❏Unattended Mode—Does not display prompts. If errors 
are found, they are displayed when testing is complete.
6. Click Begin Testing.
7. Select a tab to view a test report:
❏Status tab—Summarizes the tests run, passed, and failed 
during the current testing...

2–10Maintenance and Service Guide
Troubleshooting
2.3 Troubleshooting Flowcharts
Ta b l e  2 - 4
Troubleshooting Flowcharts Overview
Flowchart Description
2.1 Initial Troubleshooting
2.2 No Power, Part 1
2.3 No Power, Part 2
2.4 No Power, Part 3
2.5 No Power, Part 4
2.6 No Video, Part 1
2.7 No Video, Part 2
2.8 Nonfunctioning Docking Station
2.9 No Operating System (OS) Loading
2.10 No OS Loading From Hard Drive, Part 1
2.11 No OS Loading From Hard Drive, Part 2
2.12 No OS Loading From Hard Drive, Part...

Troubleshooting
Maintenance and Service Guide2–11
Flowchart 2.1 - Initial Troubleshooting
Connecting
to network
or modem?
Begin
troubleshooting.
Is there
power?
Is the OS
loading? Is there video?
(no boot)
Is there
sound?Beeps,
LEDs, or error
messages?
Keyboard/
pointing device 
working?Go to
Flowchart 2.17,
Nonfunctioning
Device. Go to
Flowchart 2.2,
No Power, Part 1.
Go to
Flowchart 2.6,
No Video, Part 1.All drives
working?
Y
Y
Y
Y
YY
Y
Y N N
N
N
N
End
N
N
N
Go to
Flowchart 2.9,
No OS Loading.
Go to...

2–12Maintenance 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?
NY YN
N
YN
N
Y Y
YN
* On...

Troubleshooting
Maintenance and Service Guide2–13
Flowchart 2.3 - No Power, Part 2
Continued from 
Flowchart 2.2,
No Power, Part 1.
Visually check for
debris in battery 
socket and clean 
if necessary.
Done
NY
Power on? Check battery by 
recharging, 
moving it to 
another computer, 
or replacing it.
Power on?
Done
Y
Replace 
power supply 
(if applicable).
N
Power on?
Done
YN
Go to
Flowchart 2.4,
No Power,
Part 3. 

2–14Maintenance and Service Guide
Troubleshooting
Flowchart 2.4 - No Power, Part 3
Continued from 
Flowchart 2.3,
No Power, Part 2.
Reseat AC adapter
in computer and
at power source.
Internal or
external AC
adapter? Done
Done
Done Done Power on?
Power on?Power on? Plug directly
into AC outlet.
Power LED
on?
Power outlet
active?Try different
outlet.Replace external
AC adapter.
Replace
power cord.
Y
N
Y
Y Y
Y N
NN
N
External
Internal
Go to
Flowchart 2.5,
No Power,
Part 4. 

Troubleshooting
Maintenance and Service Guide2–15
Flowchart 2.5 - No Power, Part 4
Y
N
Continued from 
Flowchart 2.4,
No Power, Part 3.
Reseat loose
components and
boards and 
replace
damaged items. Open
computer.
Loose or
damaged
parts?
Y
Close
computer and
retest.
Power on?
Done
N
Replace the following items (if applicable). 
Check computer operation after each 
replacement:
1. Internal DC-DC converter*
2. Internal AC adapter
3. Processor board*
4. System board*
*Replace these items as a set to prevent...