Toshiba Portege R200 Maintenance Manual page 45

2.2 Troubleshooting Flowchart
If the diagnostics program cannot detect an error, the problem may be intermittent. The Test
program should be executed several times to isolate the problem. Check the Log Utilities
function to confirm which diagnostic test detected an error(s), then perform the appropriate
troubleshooting procedures as follows:
1. If an error is detected on the system test, memory test, display test, expansion test or
real timer test, perform the System board Troubleshooting Procedures in Section 2.4.
2. If any failure error is detected on the USB FDD, perform the USB FDD
Troubleshooting Procedures in Section 2.5.
3. If an error is detected on the hard disk test, perform the HDD Troubleshooting
Procedures in Section 2.6.
4. If any failure error is detected on the key board, perform the Keyboard
Troubleshooting Procedures in Section 2.7.
5. If any failure error is detected on the display, perform the Display Troubleshooting
Procedures in Section 2.8.
6. If any failure error is detected on the touch pad, perform the Touch pad
Troubleshooting Procedures in Section 2.9.
7. If any failure error is detected on the mode, perform the Modem Troubleshooting
Procedures in Section 2.10.
8. If any failure error is detected on the LAN, perform the LAN Troubleshooting
Procedures in Section 2.11.
9. If any failure error is detected on the sound, perform the Sound Troubleshooting
Procedures in Section 2.12.
10. If any failure error is detected on the Bluetooth, perform the Bluetooth
Troubleshooting Procedures in Section 2.13.
11. If any failure error is detected on the Wireless LAN, perform the Wireless LAN
Troubleshooting Procedures in Section 2.14.
12. If any failure error is detected on the SD card, perform the SD card Troubleshooting
Procedures in Section 2.15.
13. If any failure error is detected on the Fingerprint sensor, perform the Finger Sensor
Troubleshooting Procedures in Section 2.16.
PORTEGE R200 Maintenance Manual (960-519)
2 Troubleshooting
[CONFIDENTIAL] 2-5