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2 Troubleshooting Procedures
2.10 Modem Troubleshooting
Procedure 2
Connector Check and Replacement Check
The Modem is installed as a MDC (Modem Daughter Card). If the modem malfunctions,
there may be a bad connection between the MDC and the system board. Or the MDC, system
board or their connectors might be damaged.
Disassemble the computer following the steps described in Chapter 4,
Replacement
Procedures
and perform the following checks:
Check 1 Make sure the MDC is firmly connected to CN3010 on the system board and the
Modem cable is firmly connected to the Modem jack.
If a connector is disconnected, connect it firmly and repeat Procedure 1. If the
modem is still not functioning properly, perform Check 2.
Check 2 The MDC may be defective or damaged. Replace it with a new one following the
steps in Chapter 4,
Replacement Procedures
. If the modem is still not functioning
properly, perform Check 3.
Check 3 The modem jack or MDC cable may be defective or damaged. Replace it with a
new one following the steps in Chapter 4,
Replacement Procedures
. If the modem
is still not functioning properly, perform Check 4.
Check 4 The system board may be defective or damaged. Replace it with a new one
following the steps in Chapter 4,
Replacement Procedures
.
2-46
[CONFIDENTIAL]
TECRA M9 Maintenance Manual (960-631)
Содержание Tecra M9
Страница 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
Страница 12: ...1 Hardware Overview 1 ii CONFIDENTIAL TECRA M9 Maintenance Manual 960 631 ...
Страница 45: ... CONFIDENTIAL Chapter 2 Troubleshooting Procedures ...
Страница 46: ...2 Troubleshooting Procedures 2 ii CONFIDENTIAL TECRA M9 Maintenance Manual 960 631 ...
Страница 121: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
Страница 122: ...3 Tests and Diagnostics 3 ii CONFIDENTIAL TECRA M9 Maintenance Manual 960 631 3 ...
Страница 126: ...3 Tests and Diagnostics 3 vi CONFIDENTIAL TECRA M9 Maintenance Manual 960 631 ...
Страница 228: ...3 Tests and Diagnostics 3 31 SETUP 3 102 CONFIDENTIAL TECRA M9 Maintenance Manual 960 631 ...
Страница 229: ... CONFIDENTIAL Chapter 4 Replacement Procedures ...
Страница 230: ...4 Replacement Procedures 4 ii CONFIDENTIAL TECRA M9 Maintenance Manual 960 631 4 ...
Страница 313: ...4 24 LCD unit FL inverter 4 Replacement Procedures Jig Jig TECRA M9 Maintenance Manual 960 631 CONFIDENTIAL 4 79 ...
Страница 347: ... CONFIDENTIAL Appendices ...
Страница 348: ...Appendices App ii CONFIDENTIAL TECRA M9 Maintenance Manual 960 631 ...
Страница 354: ...Appendices App viii CONFIDENTIAL TECRA M9 Maintenance Manual 960 631 ...
Страница 360: ...Appendices Appendix A Handling the LCD Module A 6 CONFIDENTIAL TECRA M9 Maintenance Manual 960 631 ...
Страница 394: ...Appendices Appendix C Pin Assignments 24 CONFIDENTIAL TECRA M9 Maintenance Manual 960 631 ...
Страница 404: ...Appendices Appendix E Key Layout E 2 CONFIDENTIAL TECRA M9 Maintenance Manual 960 631 ...
Страница 408: ...Appendices Appendix F Wiring diagrams F 4 CONFIDENTIAL TECRA M9 Maintenance Manual 960 631 ...
Страница 410: ...Appendices Appendix G BIOS rewrite procedures G 2 CONFIDENTIAL TECRA M9 Maintenance Manual 960 631 ...
Страница 412: ...Appendices Appendix H EC KBC rewrite procedures H 2 CONFIDENTIAL TECRA M9 Maintenance Manual 960 631 ...
Страница 414: ...Appendices Appendix I Reliability I 2 CONFIDENTIAL TECRA M9 Maintenance Manual 960 631 ...