Quick Troubleshooting - NEC Versa LXi Service And Reference Manual

Quick Troubleshooting

This section summarizes problems that may develop during system operation and lists suggested
corrective actions.
Problem
No power
Data on the LCD is unreadable
Battery power does not last long
System halts during boot sequence
I/O processing malfunctions
Diskette or SuperDisk does not work
7-2 Troubleshooting
Quick Troubleshooting
Corrective Action
Check that the AC adapter is plugged into the
power connector of the system. Also, check that
the AC adapter is plugged into a properly
grounded AC power outlet.
If using the battery as the main power source,
check if the battery pack is the right type, is
charged, and is inserted correctly.
Check the main board of the system. Is it inserted
into the CPU board connector properly?
Otherwise, replace the main board.
Check LCD Panel View Expansion in BIOS,
press Fn-F10 to toggle Panel View Expansion for
DOS mode.
Check if installed VGA driver is correct.
Check the VGA controller chip on the main board
for any loose soldering.
Replace the main board.
Make sure that the power management features
are enabled.
Recharge the battery pack for 2 hours or up to
100% before using again.
Replace the battery pack.
Check condition of selected boot device (diskette,
hard disk or CD-ROM) for bad boot track or
incorrect O/S files.
Try booting from a new bootable diskette and
recopy or repartition hard disk.
Check for any BIOS error messages on the
display screen.
Replace the CPU board or main board.
Check the connections of all internal devices.
Replace the CPU board or main board.
Check diskette type is correct or not faulty.
Check settings in CMOS.
Replace the diskette drive.
Replace the main board.