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2 Troubleshooting Procedures
TECRA S3 Maintenance Manual (960-532) [CONFIDENTIAL] 2-61
Procedure 2 Antenna Connection Check
The Bluetooth function-wiring diagram is shown below:
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 that 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 that Bluetooth cable is firmly connected to the Bluetooth module and
CN4400 on system board. If the connections are defective, connect them firmly
and perform Procedure 1. If the problem still occurs, perform Check 3.
Check 3 Make sure that Bluetooth antenna cable is firmly connected to the connector on
the Bluetooth module. If Bluetooth antenna cable is not connected properly,
connect it firmly and perform Procedure 1. If the problem still occurs, go to the
procedure 3.