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392 Troubleshooting Procedures
NB200 Series Maintenance Manual
39
Procedure 1: LAN connection check
Procedure 2: LAN set check
Procedure 1 LAN connection check
The LAN cable may be damaged or the connections may be loose. Perform Check 1:
Check 1 Make sure LAN cable is firmly plugged into both the LAN set and the LAN port
of the computer. If the cable is connected correctly, go to Check 2.
Check 2 Make sure the LAN port is firmly secured to the system board of the computer. If
the malfunction remains, go to Check 3.
Check 3 The LAN cable may be damaged. Replace with a good cable. If the malfunction
remains, go to Procedure 2.
Procedure 2 LAN set check
The LAN set may be faulty. Perform Check 1:
Check 1 Try using the set for LAN reception. If it does not work, the set may be damaged.
If the set does work, perform Check 2.
Check 2 Try connecting a different LAN cable to the computer. If the replacement LAN
cable works, the original set may be damaged. If the replacement set does not
work the system board may be damaged. Replace it with a new one following the
instructions in Chapter 4.
2.15 MIC Troubleshooting