compaq contura 400 family User Manual

1716 - xx Hard drive conditional
format test failed
1717 - xx Hard drive ECC * test
failed
1719 - x Hard drive power mode
test failed
1799 - xx Invalid hard drive
type failed
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* Error Correction Code
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Table 5-10. Graphics Computer Checkup Error Codes
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Error Code Description...

2419 - xx ECG/VGC ROM checksum
test failed
2421 - xx ECG/VGC 640 x 200
graphics mode test
failed
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Error Code Description Recommended Action
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2422 - xx ECG/VGC 640 x 350 16 The following step applies to
color set test failed 2402 - xx through 2480 - xx
error codes:
2423 - xx ECG/VGC 640 x 350 64 Replace the system board.
color set test failed
2424 - xx...

2. Clean trackball.
3. Ensure trackball connector
is seated properly.
4. Replace the trackball
assembly.
5. Replace the system board.
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Chapter 5.3 Troubleshooting without Error Messages 
This section contains troubleshooting information that provides a quick
reference for diagnosing problems that cannot be identified by running
POST or Computer Checkup (such as a non-functional display that does not
allow viewing error messages)....

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Computer is beeping and Computer has Immediately save any open
battery indicator is entered a low file(s). Then do any one
flashing. battery condition. of the following:
o Connect the computer to
an external power source,
then charge the battery
pack.
o Replace the battery pack
with a fully charged
battery pack.
o Initiate Hibernation
(press the Fn key and
power button
simultaneously) to
completely halt the power
consumption on...

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Battery contacts Remove the keyboard
not making good assembly and examine the
contact with battery contacts. Ensure
battery. that the battery is making
good contact with all 4
contacts.
Replace the system board.
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Defective system Replace the system board.
board.
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Problem Probable Cause Solution(s)...

and attempt to
power the unit up.
If the unit powers
up, replace the
inverter board.
b. Disconnect the
display cable from
the display panel
and power the unit
up. If the unit
powers up, replace
the display panel.
c. Replace the display
cable.
3. Replace the system
board.
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Table 5-13. Solving System Start Problems
===========================================================================
Problem Probable Cause Solution(s)...

exposed to pack to return to room
temperature temperature.
extremes.
------------------------------------------------
Battery pack is at Replace battery pack.
end of its life.
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Battery charge does not Battery is being Keep computer at a cooler
last as long as exposed to high temperature and recharge
expected. temperatures. * the battery.
------------------------------------------------
Battery is being Put computer in a warmer...

* The recommended storage temperature range for the battery pack is -4oF to
86oF (-20oC to 30oC ). The recommended operating temperature range is
50oF to 104oF (10oC to 40oC).
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Table 5-16. Solving Battery Gauge Problems
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Problem Probable Cause Solution(s)
===========================================================================
Battery gauge appears...

lack of user
activity.
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Brightness and Press the Fn + F9 keys to
contrast needs adjust the brightness. Use
adjusting. the left and right arrow
keys to adjust brightness.
Press the Fn + F8 keys to
adjust the contrast.
---------------------------------------------------
Display has If computer is in direct
overheated. sunlight, move it and allow
it to cool off.
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Display is blank and...

Distorted or garbled The ANSI.SYS driver Add the ANSI.SYS driver to
characters on the is not in the the CONFIG.SYS file. Add
display are mixed CONFIG.SYS file or the following line:
with text. the path is DEVICE=C:\ANSI.SYS
incorrect.
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Computer display Using 800 x 600 or Restart the computer. If
flashes or has higher resolution on simultaneous display is
garbled characters external monitor and desired, use 640 x 480
when computer...