2.4 System Board Troubleshooting
2 Troubleshooting Procedures
Procedure 2
Debugging Port Check
Check the D port status by a debug port test. The tool for debug port test is shown below.
Figure 2-2 A set of tool for debug port test
The test procedures are follows:
1.
Connect the debug port test cable to the connector CN3490 of the system board. For
disassembling to connect the test cable, refer to Chapter 4.
2.
Connect the debug port test cable and RS-232C cross-cable to the test board.
3.
Connect the RS-232C cross-cable to the PC that displays the results.
4.
Boot the computer in MS-DOS mode.
5.
Execute GETDPORT.COM in the text menu in CPU REAL mode. (Insert the FD for
starting D port into FDD and input “FD starting drive:>dport”.)
The D port status is displayed in the following form;
6.
When the D port status is FFFFh (normal status), go to Procedure 4.
7.
When the D port status falls into any status in Table 2-4, execute Check 1.
QOSMIO G40 Maintenance Manual (960-632)
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Summary of Contents for Qosmio G40
Page 10: ...x CONFIDENTIAL QOSMIO G40 Maintenance Manual 960 632 Downloaded from LpManual com Manuals ...
Page 11: ... CONFIDENTIAL Chapter 1 Hardware Overview Downloaded from LpManual com Manuals ...
Page 41: ... CONFIDENTIAL Chapter 2 Troubleshooting Procedures Downloaded from LpManual com Manuals ...
Page 131: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics Downloaded from LpManual com Manuals ...
Page 231: ... CONFIDENTIAL Chapter 4 Replacement Procedures Downloaded from LpManual com Manuals ...
Page 375: ... CONFIDENTIAL Appendices Downloaded from LpManual com Manuals ...