2 Troubleshooting Procedures
Procedure 2
Antenna Connection Check
The wireless LAN 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 perform the following checks:
Check 1 Make sure the wireless LAN card is firmly connected to CN2600 on the system
board.
If the connector is disconnected, connect it firmly and go to Procedure 1. If the
wireless LAN card is still not functioning properly, perform Check 2.
Check 2 Make sure the wireless LAN antenna cables are firmly connected to the wireless
LAN card.
If the wireless LAN antenna cables are disconnected, connect them firmly and go
to Procedure 1. If the wireless LAN card is still not functioning properly, go to
Procedure 3.
Procedure 3
Replacement Check
The wireless LAN antenna, wireless LAN card and the system board are connected to the
circuits. Any of these components may be damaged. Refer to Chapter 4,
Replacement
Procedures,
for instructions on how to disassemble the computer and then perform the
following checks:
Check 1 The wireless LAN card may be defective or damaged. Replace it with a new one
following the steps in Chapter 4,
Replacement Procedures
. If the problem still
exists, perform Check 2.
Check 2 The wireless LAN antennas may be defective or damaged. Replace the antennas
with new ones following the steps in Chapter 4,
Replacement Procedures
. If the
problem still exists, perform Check 3.
Check 3 The system board may be defective or damaged. Replace the board with a new
one following the instructions in Chapter 4,
Replacement Procedures
.
PORTEGE R400 Maintenance Manual (960-623)
[CONFIDENTIAL]
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49
Summary of Contents for Portege R400 Series
Page 10: ...x CONFIDENTIAL PORTÉGÉ R400 Maintenance Manual 960 623 ...
Page 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
Page 12: ...1 ii CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 35: ... CONFIDENTIAL Chapter 2 Troubleshooting Procedures ...
Page 36: ...2 Troubleshooting Procedures 2 ii CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 106: ...2 Troubleshooting Procedures 2 68 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 107: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
Page 108: ...3 Tests and Diagnostics 3 ii CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 3 ...
Page 112: ...3 Tests and Diagnostics 3 vi CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 214: ... CONFIDENTIAL Chapter 4 Replacement Procedures ...
Page 215: ...4 Replacement Procedures 4 ii CONFIDENTIAL PORTÉGÉ R400 Maintenance Manual 960 623 4 ...
Page 219: ...4 Replacement Procedures 4 vi CONFIDENTIAL PORTÉGÉ R400 Maintenance Manual 960 623 ...
Page 294: ... CONFIDENTIAL Appendices ...
Page 295: ...Appendices App ii CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 303: ...Appendices App x CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 321: ...Appendices Appendix B Board Layout B 12 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 359: ...Appendices Appendix E Key Layout E 2 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 369: ...Appendices Appendix I Reliability 2 CONFIDENTIAL PORTEGE R4000 Maintenance Manual 960 623 ...