Dell Precision 7550 Service Manual page 5

Installing the system board...........................................................................................................................................64
GPU-kort.............................................................................................................................................................................. 67
Sådan fjernes GPU-kortet............................................................................................................................................ 67
Sådan monteres GPU-kortet....................................................................................................................................... 68
Højttaler................................................................................................................................................................................ 68
Removing the speaker.................................................................................................................................................. 68
Installing the speaker.....................................................................................................................................................69
Midterhætte..........................................................................................................................................................................71
Removing the middle cap.............................................................................................................................................. 71
Installing the middle cap................................................................................................................................................72
Skærmmodul........................................................................................................................................................................ 73
Removing the display assembly................................................................................................................................... 73
Installing the display assembly......................................................................................................................................75
Håndfladestøtte................................................................................................................................................................... 78
Removing the palmrest................................................................................................................................................. 78
Installing the palmrest................................................................................................................................................... 79
Skærmfacet......................................................................................................................................................................... 80
Removing the display bezel (non-touch)................................................................................................................... 80
Installing the display bezel (non-touch).......................................................................................................................81
Skærmpanel......................................................................................................................................................................... 83
Removing the display panel (non-touch)................................................................................................................... 83
Installing the display panel (non-touch)......................................................................................................................85
Skærmhængsler.................................................................................................................................................................. 86
Removing the display hinge..........................................................................................................................................86
Installing the display hinge (non-touch)......................................................................................................................87
Kamera..................................................................................................................................................................................89
Removing the camera (non-touch)............................................................................................................................ 89
Installing the camera..................................................................................................................................................... 90
P-sensorkort......................................................................................................................................................................... 91
Sådan fjernes P-sensorkortet....................................................................................................................................... 91
Sådan monteres P-sensorkortet................................................................................................................................. 92
Skærmkabel..........................................................................................................................................................................92
Removing the display cable.......................................................................................................................................... 92
Installing the display cable............................................................................................................................................ 94
Display back cover...............................................................................................................................................................95
Replacing the display cable.......................................................................................................................................... 95
4 Fejlfinding..................................................................................................................................97
Dell SupportAssist Pre-Boot System Performance Check-diagnostik......................................................................... 97
Kørsel af SupportAssist Pre-Boot System Performance Check............................................................................. 97
Indbygget selvtest af systemkort (M-BIST - Built-In Self-Test)................................................................................. 98
Indbygget selvtest af strømskinne til skærmpanel (L-BIST)......................................................................................... 98
Indbygget selvtest af skærmpanel (LCD-BIST).............................................................................................................. 99
System diagnostic lights.....................................................................................................................................................99
Wi-Fi-strømcyklus..............................................................................................................................................................100
5 Sådan får du hjælp.................................................................................................................... 102
Kontakt Dell........................................................................................................................................................................ 102
Contents 5