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2 Troubleshooting Procedures 2.4 System Board Troubleshooting
Procedure 2 Debugging Port Check on Boot Mode
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.
System board
4. Boot the computer in MS-DOS mode.
2-20 Satellite M30-35 Maintenance Manual (960-455)