Toshiba QOSMIO G20 manual Troubleshooting Procedures Wireless LAN Troubleshooting

2 Troubleshooting Procedures 2.13 Wireless LAN Troubleshooting

Procedure 2 Antennas' Connection Check

The wireless LAN function-wiring diagram is shown below:

Wireless LAN antenna cables

Wireless LAN antenna (black)

Wireless LAN antenna (white)

<Mini PCI>

AUX

MAIN

124-pin

<System board>

CN2200

Any of the connections may be defective. Disassemble the computer following the steps described in Chapter 4, Replacement Procedures, and perform the following checks:

Check 1 Make sure the wireless communication switch is “On”.

If the switch is “Off”, turn it “On”. If the problem still occurs, perform Check 2.

Check 2 Make sure wireless LAN card (Mini-PCI) is firmly connected to the CN2200 on system board. If the connector is defective, connect it firmly and perform Procedure 1. If the problem still occurs, perform Check 3.

Check 3 Make sure that wireless LAN antenna cables (black and white) are firmly connected to the connectors on Wireless LAN card. If wireless LAN antenna cables are not connected properly, connect them firmly and perform Procedure 1. If the problem still occurs, go to the procedure 3.

QOSMIO G20 Maintenance Manual (960-511) [CONFIDENTIAL] ￿ ￿ ￿ ￿ ￿ ￿ 2-59