2.9 | Display Troubleshooting | 28 | |
| Procedure 1 External Monitor Check | 28 | |
| Procedure 2 Diagnostic Test Program Execution Check | 28 | |
| Procedure 3 Connector and Cable Check | 29 | |
| Procedure 4 | Replacement Check | 30 |
2.10 | Optical Disk Drive Troubleshooting | 31 | |
| Procedure 1 Diagnostic Test Program Execution Check | 31 | |
| Procedure 2 Connector Check and Replacement Check | 31 | |
2.11 | Modem Troubleshooting | 32 | |
| Procedure 1 Diagnostic Test Program Execution Check | 32 | |
| Procedure 2 Connector Check and Replacement Check | 32 | |
2.12 | LAN Troubleshooting | 34 | |
| Procedure 1 Diagnostic Test Program Execution Check | 34 | |
| Procedure 2 Connector Check and Replacement Check | 34 | |
2.13 | Wireless LAN Troubleshooting | 35 | |
| Procedure 1 | 35 | |
| Procedure 2 Antennas' Connection Check | 36 | |
| Procedure 3 | Replacement Check | 37 |
2.14 | Sound Troubleshooting | 38 | |
| Procedure 1 | Connector Check | 38 |
| Procedure 2 | Replacement Check | 39 |
2.15 | Fingerprint Troubleshooting | 40 | |
| Procedure 1 Diagnostic Test Program Execution Check | 40 | |
| Procedure 2 | Connector Check and Replacement Check | 40 |
2.16 | Bluetooth Troubleshooting | 41 | |
| Procedure 1 | Connector Check and Replacement Check | 41 |
