Dell Precision 7550 Manual De Servicio página 5

Installing the system board...........................................................................................................................................64
tarjeta GPU...........................................................................................................................................................................67
Extracción de la tarjeta GPU........................................................................................................................................ 67
Instalación de la tarjeta GPU........................................................................................................................................ 68
Altavoz.................................................................................................................................................................................. 68
Removing the speaker.................................................................................................................................................. 68
Installing the speaker.....................................................................................................................................................69
Tapa central.......................................................................................................................................................................... 71
Removing the middle cap.............................................................................................................................................. 71
Installing the middle cap................................................................................................................................................72
Ensamblaje de la pantalla.................................................................................................................................................... 73
Removing the display assembly................................................................................................................................... 73
Installing the display assembly......................................................................................................................................75
Reposamanos....................................................................................................................................................................... 78
Removing the palmrest................................................................................................................................................. 78
Installing the palmrest................................................................................................................................................... 79
Embellecedor de la pantalla................................................................................................................................................80
Removing the display bezel (non-touch)................................................................................................................... 80
Installing the display bezel (non-touch).......................................................................................................................81
Panel de la pantalla.............................................................................................................................................................. 83
Removing the display panel (non-touch)................................................................................................................... 83
Installing the display panel (non-touch)......................................................................................................................85
Bisagras de la pantalla.........................................................................................................................................................86
Removing the display hinge..........................................................................................................................................86
Installing the display hinge (non-touch)......................................................................................................................87
Cámara..................................................................................................................................................................................89
Removing the camera (non-touch)............................................................................................................................ 89
Installing the camera..................................................................................................................................................... 90
Placa del sensor P................................................................................................................................................................ 91
Extracción de la placa del sensor P..............................................................................................................................91
Instalación de la placa del sensor P............................................................................................................................. 92
Cable de pantalla................................................................................................................................................................. 92
Removing the display cable.......................................................................................................................................... 92
Installing the display cable............................................................................................................................................ 94
Display back cover...............................................................................................................................................................95
Replacing the display cable.......................................................................................................................................... 95
4 Solución de problemas................................................................................................................ 97
Diagnóstico de verificación de rendimiento del sistema previo al arranque de Dell SupportAssist...........................97
Ejecución de la comprobación de rendimiento del sistema previa al arranque de SupportAssist....................... 97
Prueba automática incorporada de la tarjeta madre del sistema (M-BIST)................................................................ 98
Prueba automática incorporada del riel de alimentación del panel de visualización (L-BIST)................................... 98
Prueba automática incorporada del panel de visualización (LCD-BIST)...................................................................... 99
Indicadores luminosos de diagnóstico del sistema.......................................................................................................... 99
Ciclo de apagado y encendido de wifi.............................................................................................................................. 101
5 Obtención de ayuda...................................................................................................................102
Cómo ponerse en contacto con Dell............................................................................................................................... 102
Contents 5