Symptom
Battery does not charge
Second battery does not work, main battery works
Battery indicator is inaccurate
Display
Dark display, no light
White display
Erratic display
Bright or missing pixels or lines
For a
Call Center:
Suggestions
Check the power source.
Check battery contacts. If available, try another battery and ac adapter.
Check for high ambient temperature and blocked air vents.
Try swapping the two batteries.
Check contacts on second battery.
Second battery does not charge until main battery is fully charged.
Completely charge and discharge the battery 2 to 4 cycles in the unit.
For an OmniBook 4150B, shut down and restart. During boot at the F2 prompt, press F6. This starts a process that recalibrates the battery gauge, possibly inproving operating time. When the discharge cycle ends, you may have to unplug and reconnect the ac adapter to begin recharging.
Adjust display brightness. Press Fn+F5 several times. Try external monitor.
Adjust display brightness.
See quality statement on page
Repair Center: Likely Causes
Battery or contacts. AC adapter. Motherboard.
Fan.
Second battery or contacts.
Motherboard.
Motherboard.
LCD module (backlight).
LCD cable or connections.
Inverter PCA.
LVDS PCA.
LCD module.
Inverter PCA.
LVDS PCA.
LCD cable or connections.
LCD module.
LCD module.
LCD cable or connections.
LCD cable connection.
Repair Center:
Comments
Check ac adapter.
Check fan.
Try cycling the battery charge.
Reseat the VGA PCA.
If an external monitor displays no image, replace the VGA PCA instead, then motherboard.
See quality statement on page
Remove the LCD shield and check the flex cable connection at the back of the
HP OmniBook 4100/4150 | Troubleshooting and Diagnostics |