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2 Troubleshooting Procedures
2.13 Bluetooth Troubleshooting
2-52
TECRA M1 Maintenance Manual (960 -436)
Procedure 3
Antenna Check
Check 1
Use an antenna test cable to check the antennas' connection. Follow the steps
below:
1.
Remove the Bluetooth slot cover and lift it off. Refer to Chapter 4,
Replacement Procedures
, for detailed steps of disassembling.
2.
Disconnect the Bluetooth antenna cable connected to the Bluetooth module.
3.
Connect the end of the antenna test cable to the multimeter.
4.
Connect the Bluetooth antenna cable to the antenna test cable. One clip is
connected to the end of the Bluetooth antenna cable. The other is connected to
the opposite side of the Bluetooth antenna cable.
5.
Determine the resistance. The cable passes the test when the resistance is less
than 5
Ω
. If it is more than 5
Ω
, the Bluetooth antenna cable fails the test.
Figure 2-3 Antenna Test cable
NOTE
: 1.
The resistances determined with the steps above may not be stable with other
machines because of "cable loss," which varies according to the length of the
cable. The impedance of the antenna itself is about 0.5-0.8 ohm.
2.
The above steps cannot accurately determine the impedance of the antenna.
Use an LC meter for a precise measure of impedance.
If the Bluetooth antenna cable pass the test, connect it to the Bluetooth module and cover the
slo t, then perform Procedure 1.
If the Bluetooth antenna cable does not pass the test, go to Procedure 4.
Summary of Contents for Tecra M1
Page 1: ...Toshiba Personal Computer TECRA M1 Maintenance Manual TOSHIBA CORPORATION File Number 960 436 ...
Page 6: ...vi TECRA M1 Maintenance Manual 960 436 ...
Page 10: ...x TECRA M1 Maintenance Manual 960 436 3 29 SETUP 3 78 ...
Page 13: ...TECRA M1 Maintenance Manual 960 436 xiii ...
Page 14: ...Chapter 1 Hardware Overview ...
Page 15: ...1 Hardware Overview 1 ii TECRA M1 Maintenance Manual 960 436 ...
Page 32: ...1 2 System Unit Block Diagram 1 Hardware Overview TECRA M1 Maintenance Manual 960 436 1 15 ...
Page 54: ...Chapter 2 Troubleshooting Procedures ...
Page 55: ...2 Troubleshooting Procedures 2 ii TECRA M1 Maintenance Manual 960 436 ...
Page 58: ...2 Troubleshooting Procedures TECRA M1 Maintenance Manual 960 436 2 v ...
Page 60: ...2 Troubleshooting Procedures TECRA M1 Maintenance Manual 960 436 2 vii ...
Page 123: ...Chapter 3 Tests and Diagnostics ...
Page 124: ...3 Tests and Diagnostics 3 ii TECRA M1 Maintenance Manual 960 436 ...
Page 224: ...3 Tests and Diagnostics 3 29 SETUP 3 96 TECRA M1 Maintenance Manual 960 436 ...
Page 225: ...Chapter 4 Replacement Procedures ...
Page 226: ...4 Replacement Procedures 4 ii TECRA M1 Maintenance Manual 960 436 ...
Page 309: ......
Page 327: ...4 Replacement Procedure 4 25 Fluorescent Lamp 4 90 TECRA M1 Maintenance Manual 960 436 ...
Page 330: ...4 25 Fluorescent Lamp 4 Replacement Procedure TECRA M1 Maintenance Manual 960 436 4 93 ...
Page 349: ...Appendices ...
Page 350: ...Appendices App ii ...
Page 362: ...Appendices Appendix A Handling the LCD Module A 6 TECRA M1 Maintenance Manual 960 436 ...
Page 368: ...Appendices Appendix B Board Layout B 6 TECRA M1 Maintenance Manual 960 436 F VR3000 Volume ...
Page 395: ...Appendices Apx C Pin Assignments C 24 TECRA M1 Maintenance Manual 960 436 123 NC 124 B3V ...
Page 401: ...Appendices Apx C Pin Assignments C 30 TECRA M1 Maintenance Manual 960 436 41 FL P5V ...
Page 408: ...Appendix C Pin Assignments Appendices TECRA M1 Maintenance Manual 960 436 C 37 ...
Page 418: ...Appendices Appendix E Key Layout E 2 TECRA M1 Maintenance Manual 960 436 ...
Page 422: ...Appendices Appendix G BIOS Rewrite Procedures G 2 TECRA M1 Maintenance Manual 960 436 ...
Page 424: ...Appendices Appendix H EC KBC Rewrite Procedures H 2 TECRA M1 Maintenance Manual 960 436 ...
Page 426: ...Appendices Appendix I Reliability I 2 TECRA M1 Maintenance Manual 960 436 ...