NEC VERSA DOCK Service Manual page 97

External keyboard or PS/2
mouse doesn't work
PC card does not work
NEC VersaGlide doesn't work
Serial device does not work
Parallel device does not work
Notebook will not dock/undock
Fan will not come on
Check if keyboard or mouse is connected properly.
Power off system first before plugging in the device.
Replace the keyboard or mouse.
Replace the CPU board or I/O board.
Check the PC card driver installation for any IRQ or I/O
address conflict.
Check if the PC card is inserted properly and all
connections are set.
If the PC card is a Type II card, install it in the system's
other PC card slot.
Replace the PC card.
Replace the I/O board.
Check if PS/2 or Alps mouse driver is properly
installed.
Check VersaGlide cable inside the system if it is
inserted properly.
Clean VersaGlide surface.
Check the keyboard controller chip for any cold or
loose soldering.
Replace the CPU board.
Check if device driver is installed properly.
Check if serial device is connected properly.
Check the device drive installation for any IRQ or I/O
address conflict.
Replace serial device.
Check the I/O controller chip on the main board for any
cold or loose soldering.
Replace the I/O board.
Check all connections.
Check if external device is turned on.
Check the device drive installation for any IRQ or I/O
address conflict.
Test another parallel device.
Check I/O controller chip on the main board for any
cold or loosed soldering.
Replace the I/O board.
Check PnP operating system.
Adjust docking tray height to proper level.
Reset keylock.
Get updated BIOS.
Troubleshooting 7-3