2.22 HDMI Port 2 Troubleshooting
Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual 2-31
2.20 Wireless LAN
Wireless Module or system board may be the reason of Wireless LAN fault. Either of these
two components may be damaged. To determine if the computer’s Wireless LAN module is
functioning properly, perform following procedures. Start with Procedure 1 and continue
with the other procedures as instruction below.
Procedure 1 Windows Application Test
Procedure 2 Connector Check and Replacement Check
Procedure 1 Windows Application Test
Execute Function Programs in Windows, which will display the Wireless LAN Test Result. If
the test and diagnostics result is abnormal, go to Procedure 2. If an error is not located,
Wireless LAN system is functioning properly.
Procedure 2 Connector Check and Replacement Check
Wireless LAN Module is connected to the system board. If Wireless LAN malfunctions,
there may be a bad connection between Wireless LAN Module and the system board, or
either might be faulty. Disassemble the computer following the steps described in Chapter 4
and perform the following checks:
Check 1 Make sure Wireless LAN module has been firmly connected to the
connector on the system board. Also make sure Wireless LAN module is
free of foreign matters.
And if the connector is disconnected, connect it firmly to the system board
and return to Procedure 1. If a foreign matter is found on Wireless LAN
Module, remove it and then return to Procedure 1. If there is still an error,
perform Check 2.
Check 2 Wireless LAN Module may be faulty. Replace it with a new one following
the steps described in Chapter 4. If Wireless LAN Module replaced is still
not functioning properly, perform Check 3.
Check 3 System Board may be defective. Replace System Board with a new one
following the steps described in Chapter 4.
Wireless LAN
Module
System Board
CPU
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