NEC Versa 2500 Series Service Manual page 95

Problem
PCMCIA card does not work
Serial device does not work
Parallel device does not work
Table 5-5 Quick Troubleshooting (cont'd)
Corrective Actions
Check the PCMCIA driver installation for any
IRQ or IO address conflict.
Check if the PCMCIA card is inserted properly
and all connections are set.
Replace the PCMCIA card.
Check for work around for the card being used.
Replace the system board.
Check if the serial device is connected properly.
Replace the serial device.
Check the I/O controller chip on the system
board for any cold or loose soldering.
Replace the system board.
Check if all connections are properly set.
Check if external device is turned on.
Check I/O controller chip on the system board for
any cold or loose soldering.
Replace the system board.
Check if the Port is enabled in Setup.
Troubleshooting and Repair 5-11