Toshiba PROL450D Manual Do Utilizador

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2 Troubleshooting Procedures 
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual 
 
                                                                    
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Figure 2-10 outlines the process. Start with Procedure 1 and continue with the other 
procedures as instructed. 
Procedure 1:  Diagnostic test 
Procedure 2:  Connector and replacement check 
Procedure 1 
Diagnostic test 
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 
Connector and replacement check 
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 
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 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. 
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. 
Check 4 
The system board may be damaged.  Replace it with a new one following the 
instructions in Chapter 4.