Toshiba Satellite A660-BT3G25X Maintenance Manual page 74

2Troubleshooting Procedures
Notes: W/L Antenna assemble rule as below:
Color of antenna Assemble location
White antenna
Black antenna
The wireless LAN antenna wire, wireless LAN unit or system board may each be the source
of a wireless LAN fault. Any of these components may be damaged. To determine if the
computer's wireless LAN system is functioning properly, perform the following procedures.
Figure 2-12 outlines the process. Start with Procedure 1 and continue with the other
procedures as instructed.
Procedure 1:
Procedure 2:
Procedure 1 Wireless LAN connection check
PLS use windows application. 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.
SatelliteA660/ProA660 Series Maintenance Manual
40
Figure 2-12 Wireless LAN troubleshooting process
Main/1
Aux/2
Wireless LAN connection test
Connector and replacement check