dynabook PORTEGE X30W-J, Maintenance Manual

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2 Troubleshooting Procedures
2-48
[CONFIDENTIAL] PORTÉGÉ X30W-J, dynabook V*/VZ*/VC* Series Maintenance Manual (960-941)
Check 3 Connect the USB Type-C adapter to another USB connector on the PC and returns
to Procedure 1. If the problem still exists, perform Check 4.
Check 4 The external display may be damaged. Replace it with a new one and repeat
Procedure 1. If the problem still exists, perform Check 5.
Check 5 USB Type-C adapter may be damaged. Replace it with a new one. If the problem
still exists, check the PC condition.
2.20.3 LAN port
To check if the LAN port is malfunctioning or not, follow the troubleshooting procedures
below as instructed.
Procedure 1: Check on Windows OS
Procedure 2: Connector Check and Replacement Check
Procedure 1 Check on Windows OS
Check if the LAN is working properly by using the function of Windows. How to connect the
LAN cable is as follows;
1. Connect the USB Type-C adapter to the USB Type-C connector on the computer.
2. Turn off the other devices connected to the computer and the USB Type-C adapter.
3. Plug the one end of the LAN cable to the LAN port of the USB Type-C adapter.
4. Plug the other end of the LAN cable into the connector on the network device.
If any error is detected by the test, go to Procedure 2.
Procedure 2 Connector Check and Replacement Check
Check 1 Make sure LAN cable is firmly connected to the LAN port on the USB Type-C
adapter. If connection is loose, reconnect it firmly and return to Procedure 1.
If the problem still occurs, perform Check 2.
Check 2 LAN cable may be faulty. Replace it with a new one. If the problem still occurs,
perform Check 3.
Check 3 USB Type-C adapter may be faulty. Replace it with a new one. If the problem still
exists, check the PC condition.