2 Troubleshooting Procedures 2.13 Wireless LAN Troubleshooting
2-54 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Procedure 2 Antennas' Connection Check
The wireless LAN function-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 check the followings:
Check 1 Make sure the wireless communication switch is “On”.
If the switch is “Off”, turn it “On”. If there is still an error, perform Check 2.
Check 2 Make sure the wireless LAN card is firmly connected to the CN2200 on the system
board.
If the wireless LAN card is disconnected, connect it firmly and perform Procedure
1. If the problem still occurs, perform Check 3.
Check 3 Make sure that the wireless LAN antenna cables (black and white) are firmly
connected to the connector on the wireless LAN card.
If the wireless LAN antenna cables are disconnected, connect them firmly and
perform Procedure 1. If the problem still occurs, go to the procedure 3.
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