NEC Versa TXi Series Service Manual page 78

Problem or Symptoms
Battery power does not last
long
Notebook computer halts
during boot sequence
I/O processing malfunctions
USB diskette drive does not
work
Hard disk drive malfunction
CD-ROM drive malfunction
Diagnostics
Corrective Actions
Make sure that the power management options under BIOS Setup are
enabled and set properly.
Recharge the battery pack for at 3 least hours before using.
Discharge and recharge the battery twice.
Replace the battery.
Check condition of the selected bootload device (diskette or hard disk)
for bad boot track or incorrect O/S files.
Try booting from a new boot diskette and recopy or repartition the hard
disk.
Check for any BIOS error messages on the display.
Replace the main board.
Check the connections of all internal devices.
Replace the main board.
Check if the diskette drive option is set properly in BIOS Setup.
Check if the diskette USB cable is connected properly.
Check that the diskette is not faulty.
Replace the USB diskette drive.
Replace the USB board.
Check if the hard disk drive is set properly in BIOS Setup.
Check that the hard disk drive interface cable is firmly connected to P13
on the main board and that the cable is firmly connected to the hard
disk drive.
Try reseating the interface cable to the main board and to the hard disk
drive.
Replace the hard drive.
Replace the main board.
Check if the drive is set properly in BIOS Setup.
Check if the drive has the latest software driver (check the internet for
the vendor's latest driver).
Check the drive's jumper settings.
Check if the drive power cable and signal cable are firmly plugged in.
Try reseating the cables.
Replace the drive.
Replace the main board.
Troubleshooting 6-7