PORTEGE M780 Maintenance Manual (960-809) [CONFIDENTIAL] vii
Chapter 2 Troubleshooting Procedures
2.1 Troubleshooting.........................................................................................................2-6
2.2 Troubleshooting Flowchart........................................................................................ 2-8
2.3 Power Supply Troubleshooting................................................................................2-13
2.4 System Board Troubleshooting................................................................................2-23
2.5 USB FDD Troubleshooting ..................................................................................... 2-31
2.6 2.5” HDD Troubleshooting...................................................................................... 2-35
2.7 Keyboard Troubleshooting ......................................................................................2-40
2.8 Touch pad Troubleshooting.....................................................................................2-41
2.9 Display Troubleshooting..........................................................................................2-43
2.10 Optical Disk Drive Troubleshooting........................................................................ 2-45
2.11 Modem Troubleshooting..........................................................................................2-47
2.12 LAN Troubleshooting..............................................................................................2-49
2.13 Wireless LAN Troubleshooting............................................................................... 2-50
2.14 Bluetooth Troubleshooting ......................................................................................2-53
2.15 Web camera Troubleshooting.................................................................................. 2-55
2.16 Tablet Pen Troubleshooting..................................................................................... 2-57
2.17 Touch screen Troubleshooting.................................................................................2-59
2.18 Sound Troubleshooting............................................................................................ 2-61
2.19 Bridge media Slot Troubleshooting......................................................................... 2-63
2.20 PCI ExpressCard Slot Troubleshooting................................................................... 2-64
2.21 Fingerprint sensor Troubleshooting.........................................................................2-65
2.22 3G Troubleshooting: Not Used................................................................................ 2-69
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