Section 3 Troubleshooting And Repair; Quick Troubleshooting - NEC VERSA 6000 Series Service Manual

Section 3
Troubleshooting and Repair
This section focuses on providing you with some information on basic troubleshooting as
well as the BIOS, POST Error codes and messages.

QUICK TROUBLESHOOTING

This section summarizes problems that may develop during system operation and lists sug-
gested corrective actions.
Problem
No power
Data on the LCD is unreadable
Table 3-1 Quick Troubleshooting
Corrective Actions
Check that the AC adapter is plugged into the
power connector of the system. Also, that the AC
adapter is plugged into a properly grounded AC
power outlet.
If using the battery as main power source, check
if the battery pack is of the right type, charged
and is inserted correctly.
Check the powerboard of the system. Is it
inserted into the main board connector properly?
Otherwise, replace the powerboard.
Adjust the brightness controls on the right side of
the LCD panel.
Check if the LCD cables are inserted properly.
Check also connections inside the LCD panel.
Check if installed VGA driver is correct.
Check VGA controller chip on the main board if
there is any cold or loosed soldering.
Replace the main board.