2.14 Wireless LAN Troubleshooting 2 Troubleshooting Procedures
TECRA 9100 Maintenance Manual (960-347) 2-53
Procedure 2 Antennas' Connection Check
The wireless LAN function wiring diagram is shown below:
Wireless LAN
Board
AUX Antenna Cable
I/O BoardPJ118
Main Antenna Cable
Left Antenna
Board
Right Antenna
Board
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 the Bluetooth module is still not
functioning properly, perform Check 2.
Check 2 Make sure the wireless LAN board is firmly connected to PJ116 on the I/O 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 3.
Check 3 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.
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