2.11 LAN | 2 Troubleshooting |
Procedure 2 Connector Check and Replacement Check
The LAN function is installed on the System board. The modem/LAN jack is connected to the System board by the cable. If the LAN malfunctions, the connection is bad or the System board might be faulty.
Disassemble the computer following the steps described in Chapter 4 and perform the following checks:
Check 1 Check if the LAN jack is connected firmly to the connector PJ352 of the System board.
|
|
| PJ352 | System board |
Network |
|
| ||
|
| |||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
If it is loose or disconnected, connect it firmly and return to Procedure 1. If there is still an error, perform Check 2
Check 2 The LAN jack may be defective. Replace the LAN jack with a new one. If the problem persist, perform Check 3.
Check 3 The System board may be faulty. Replace the System board following the steps described in Chapter 4.
PORTEGE R100 Maintenance Manual |
