Troubleshooting Procedures
2.11 Modem Troubleshooting
To check if modem is malfunctioning or not, follow the troubleshooting procedures below as
instructed.
Procedure 1: Diagnostic Test Program Execution Check
Procedure 2: Connector Check and Replacement Check
Procedure 1
Diagnostic Test Program Execution Check
Execute Modem test in the LAN/Modem/Bluetooth/IEEE1394 test program. Refer to Chapter
3,
Tests and Diagnostics
for more information on how to perform the test program.
If any error is detected, perform Procedure 2.
Procedure 2
Connector Check and Replacement Check
MDC (Modem Daughter Card) is used as the modem for this computer. MDC is connected to
the system board. If modem malfunctions, the connection of cable, board and module may be
defective. Otherwise, they may be faulty.
Disassemble the computer following the steps described in Chapter 4,
Replacement Procedure
and perform the following checks:
Check 1 Make sure the following connections are firmly connected.
If any connector is disconnected, connect it firmly and return to Procedure 1. If the
problem still occurs, perform Check 2.
PORTEGE M780 Maintenance Manual (960-809)
[CONFIDENTIAL]
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Содержание Portege M780
Страница 11: ...1 Hardware Overview PORTEGE M780 Maintenance Manual 960 809 CONFIDENTIAL 1 1 Chapter 1 Hardware Overview ...
Страница 12: ...1 Hardware Overview 1 2 CONFIDENTIAL PORTEGE M780 Maintenance Manual 960 809 ...
Страница 44: ...Troubleshooting Procedures 2 2 CONFIDENTIAL PORTEGE M780 Maintenance Manual 960 809 2 ...
Страница 113: ...Tests and Diagnostics PORTEGE M780 Maintenance Manual 960 809 CONFIDENTIAL 3 1 Chapter 3 Tests and Diagnostics ...
Страница 114: ...Tests and Diagnostics 3 2 CONFIDENTIAL PORTEGE M780 Maintenance Manual 960 809 3 ...
Страница 206: ...Tests and Diagnostics 3 94 CONFIDENTIAL PORTEGE M780 Maintenance Manual 960 809 Advanced menu screen Exit menu screen ...
Страница 304: ... CONFIDENTIAL Chapter 4 Replacement Procedures ...
Страница 305: ...4 Replacement Procedures 4 ii CONFIDENTIAL PORTÉGÉ M780 Maintenance Manual 960 809 4 ...
Страница 415: ... CONFIDENTIAL Appendices ...
Страница 416: ...Appendices App ii CONFIDENTIAL PORTEGE M780 Maintenance Manual 960 809 ...
Страница 436: ...Appendices Appendix A Handling the LCD Module A 6 CONFIDENTIAL PORTEGE M780 Maintenance Manual 960 809 ...
Страница 478: ...Appendices Appendix F Wiring diagrams F 2 CONFIDENTIAL PORTEGE M780 Maintenance Manual 960 809 ...
Страница 480: ...Appendices Appendix G BIOS rewrite procedures G 2 CONFIDENTIAL PORTEGE M780 Maintenance Manual 960 809 ...
Страница 482: ...Appendices Appendix H EC KBC rewrite procedures H 2 CONFIDENTIAL PORTEGE M780 Maintenance Manual 960 809 ...
Страница 484: ...Appendices Appendix I Reliability I 2 CONFIDENTIAL PORTEGE M780 Maintenance Manual 960 809 ...