Toshiba 960-809 Manual Do Utilizador

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  Troubleshooting Procedures  
   
2.4.2  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 2-1  A set of tool for debug port test 
 
1.  Not a Serial Port  model should connect a debug port test cable to connector CN3110 
of a system board.( W3270 open) 
2.  Connect the RS-232C Cross-cable to the PC that displays the test 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. 
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PORTEGE M780 Maintenance Manual (960-809)