Toshiba QOSMIO E10 Maintenance Manual page 101

2 Troubleshooting Procedures
Procedure 2
The wireless LAN function-wiring diagram is shown below:
Wireless LAN antenna cable
Wireless LAN
antenna (Black)
Wireless LAN
antenna (White)
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 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 board is firmly connected to the PJ2200 on the
system board.
If the connector is disconnected, connect it firmly and perform Procedure 1. If the
Wireless LAN is still not functioning properly, perform Check 3.
Check 3 Make sure that the wireless LAN antenna cables (black and white) are firmly
connected to the connector (PJ9701, PJ9700) on the AN board and that the
wireless LAN antenna relay cable (black, white) are firmly connected to the
connector (PJ9703, PJ9702) on the AN board.
If the wireless LAN antenna (relay) cables are disconnected, connect them firmly
and perform Procedure 1. If the wireless LAN is still not functioning properly,
perform Check 4.
Check 4 Make sure the wireless LAN antenna relay cables (black and white) are firmly
connected to the connectors on the Wireless LAN board.
If the wireless LAN antenna relay cables are disconnected, connect them firmly
and perform Procedure 1. If the wireless LAN is still not functioning properly, go
to the procedure 3.
2-54
Antennas' Connection Check
＜AN board＞
PJ9703
PJ9701
PJ9700
PJ9702
2.12 Wireless LAN Troubleshooting
Wireless LAN antenna relay cable
<Mini PCI>
AUX
MAIN
QOSMIO E10 Maintenance Manual (960-492)
＜System board＞
PJ2200