Toshiba A500D/PRO A500DPRO A500D Benutzerhandbuch

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2Troubleshooting Procedures 
 
 
                                                                                                            
Satellite A500D/Satellite A505D/Satellite A507D/Satellite Pro Series Maintenance Manual
69
 
Procedure 1 
Connector and replacement check 
The 3G antenna, 3G 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 3G antenna is firmly connected to the 3G module (refer to 
Chapter 4 for instructions) and that the 3G module is securely slotted into the 
system board. If the problem persists, go to Check 2. 
Check 2 
Check the wireless communication function is enabled by BIOS setup and 
FN+F8, and then make sure that the wireless communication LED on the front 
panel is light. If the LED is light but the 3G 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 function is enabled by BIOS setup and 
FN+F8, go to Check 3. 
Check 3 
3G 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.