Toshiba Satellite A350 Maintenance Manual page 75

2 Troubleshooting Procedures
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Figure 2-13 outlines the process. Start with Procedure 1 and continue with the other
procedures as instructed.
Procedure 1
Run the Diagnostic Program, which will automatically execute the wireless LAN test.
Test and Diagnostic for more information on the program.
If an error is located, go to Procedure 2. If an error is not located, the wireless LAN system is
functioning properly.
Procedure 2
The wireless LAN antenna, wireless LAN unit or system board may be disconnected or
damaged. Disassemble the computer following the steps described in Chapter 4, Replacement
Procedures, and perform the following checks.
Check 1
Check 2
Check 3
Check 4
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Procedure 1: Diagnostic test
Procedure 2: Connector and replacement check
Diagnostic test
Connector and replacement check
Make sure that the wireless LAN antenna is firmly connected to the Wireless
LAN module (refer to Chapter 4 for instructions) and that the wireless LAN
module is securely slotted into the system board. If the problem persists, go to
Check 2.
Check that the wireless communication switch is turned to "On", and then make
sure that the wireless communication LED on the front panel is light. If the LED
is light but the wireless LAN function is still faulty, the antenna may be damaged.
Replace with a new antenna following the steps in Chapter 4, Replacement
Procedures. If the problem persists, or if the wireless LAN LED is not light when
the wireless communication switch is turned to "On", go to Check 3.
The wireless LAN unit may be damaged. Replace it with a new one following the
instructions in Chapter 4. If the problem still exists, perform Check 4.
The system board may be damaged. Replace it with a new one following the
instructions in Chapter 4.
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