
2 Troubleshooting Procedures
2.4 System Board Troubleshooting
2-20
Satellite A50/TECRA A2 Maintenance Manual (960-478)
Procedure 2
Debug 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 test cable to the connector PJ2000 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 3
7.
When the D port status falls into any status in Table 2-3, execute Check 1.
Содержание Tecra A2 Series
Страница 10: ...x Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Страница 11: ...Chapter 1 Hardware Overview ...
Страница 12: ...1 Hardware Overview 1 ii Satellite A50 TECRA A2 Maintenance Manual 960 478 1 Hardware Overview ...
Страница 49: ...Chapter 2 Troubleshooting Procedures ...
Страница 50: ...2 Troubleshooting Procedures 2 ii Satellite A50 TECRA A2 Maintenance Manual 960 478 2 ...
Страница 54: ...2 Troubleshooting Procedures 2 vi Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Страница 104: ...2 Troubleshooting Procedures 2 14 Wireless LAN Troubleshooting 2 50 Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Страница 105: ...Chapter 3 Tests and Diagnostics ...
Страница 106: ...3 Tests and Diagnostics 3 ii Satellite A50 TECRA A2 Maintenance Manual 960 478 3 ...
Страница 148: ...3 Tests and Diagnostics 3 17 Sound LAN Modem TV Test 3 40 Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Страница 197: ...Chapter 4 Replacement Procedures ...
Страница 198: ...4 Replacement Procedures 4 ii Satellite A50 TECRA A2 Maintenance Manual 960 478 4 ...
Страница 204: ...4 Replacement Procedures 4 viii Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Страница 271: ...Appendices ...
Страница 272: ...Appendices App ii Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Страница 284: ...Appendices Apx A Handling the LCD Module A 6 Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Страница 290: ...Appendices Apx B Board Layout B 6 Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Страница 332: ...Appendices Apx E Key Layout E 2 Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Страница 334: ...Appendices Apx F Wiring Diagrams F 2 Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Страница 336: ...Appendices Apx G BIOS KBC EC Update G 2 Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Страница 338: ...Appendices Apx H Reliability H 2 Satellite A50 TECRA A2 Maintenance Manual 960 478 ...