2 Troubleshooting
2.17 Wireless LAN Troubleshooting
Procedure 2
Check of Antenna connection
The wireless LAN functional wiring diagram is shown below:
Any of the connections may be disconnected. Disassemble the computer following the steps
described in Chapter 4, and perform the following checks:
Check 1
The wireless LAN card and the System board may be disconnected. Make sure the
wireless LAN card is firmly connected to the CN2200 of the System board.
If the board connector is disconnected, connect it firmly and return to Procedure 1.
If there is still an error, go to Check 2.
Check 2
Make sure the wireless LAN antennas (black and white) are firmly connected to
the Wireless LAN card. If the antennas are disconnected, connect firmly then
return to Procedure 1. If there is still an error, perform Procedure 3.
Procedure 3
Replacement Check
Check if the wireless LAN card and the System board are connected properly. If they are
properly connected but there is stall an error, any of these components may be damaged.
Disassemble the computer following the steps described in Chapter 4 and replace the board
with a new one.
Check 1
The wireless LAN card may be defective or damaged. Disassemble the computer
following the steps described in Chapter 4 and replace the board with a new one. If
there is still an error go to Check 2.
Check 2
The wireless LAN antennas may be defective or damaged. Disassemble the
computer following the steps described in Chapter 4 and replace the board with a
new one. If there is still an error go to Check 3.
Check 3
The System board may be defective or damaged. Disassemble the computer
following the steps described in Chapter 4 and replace the board with a new one.
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[CONFIDENTIAL]
TECRA M4 Maintenance Manual (960-521)
Summary of Contents for Tecra M4
Page 10: ...x CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...
Page 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
Page 12: ...1 Hardware Overview 1 ii CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 1 Hardware Overview ...
Page 51: ...1 Hardware Overview 1 8 AC Adapter 1 36 CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...
Page 52: ... CONFIDENTIAL Chapter 2 Troubleshooting ...
Page 53: ...2 Troubleshooting 2 ii CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 2 ...
Page 57: ...2 Troubleshooting 2 vi CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...
Page 114: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
Page 115: ...3 Tests and Diagnostics 3 ii CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...
Page 119: ...3 Tests and Diagnostics 3 vi CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...
Page 223: ...3 Tests and Diagnostics 3 30 SETUP 3 104 CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...
Page 224: ... CONFIDENTIAL Chapter 4 Replacement Procedures ...
Page 225: ...4 Replacement Procedures 4 ii CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 4 ...
Page 300: ...4 Replacement Procedures 4 29 Digitizer 4 70 CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...
Page 320: ... CONFIDENTIAL Appendices ...
Page 321: ...Appendices App ii CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...
Page 341: ...Appendices Appendix B Board Layout B 8 CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...
Page 379: ...Appendices Appendix E Key Layout E 2 CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...
Page 387: ...Appendices Appendix I Reliability I 2 CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...