Toshiba PORTEGE S100 Maintenance Manual page 91

2 Troubleshooting Procedures
Procedure 2
The wireless LAN wiring diagram is shown below:
Any of the connections may be disconnected. Disassemble the computer following the steps
described in Chapter 4, Replacement Procedures, and perform the following checks:
Check 1 Make sure the wireless LAN board is firmly connected to CN2200 on the system
board.
If the connector is disconnected, connect it firmly and perform Procedure 1. If the
wireless LAN board is still not functioning properly, perform Check 2.
Check 2 Make sure the wireless LAN antenna cables (black and white) are firmly
connected to the wireless LAN board.
If the wireless LAN antenna cables are disconnected, connect them firmly and
perform Procedure 1. If the wireless LAN function is still not functioning
properly, go to Procedure 3.
Procedure 3
The wireless LAN antenna, wireless LAN board and the system board are connected to the
circuits. Any of these components may be damaged. Refer to Chapter 4, Replacement
Procedures, for instructions on how to disassemble the computer and then perform the
following checks:
Check 1 The wireless LAN board may be defective or damaged. Replace it with a new one
following the steps in Chapter 4, Replacement Procedures. If the problem still
exists, perform Check 2.
Check 2 The wireless LAN antenna may be defective or damaged. Replace it with a new
one following the steps in Chapter 4, Replacement Procedures. If the problem still
exists, perform Check 3.
Check 3 The system board may be defective or damaged. Replace it with a new one
following the instructions in Chapter 4, Replacement Procedures and test the
display again.
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Antenna Connection Check
Replacement Check
2.15 Wireless LAN Troubleshooting
PORTEGE S100 Maintenance Manual (960-508)