Dell OptiPlex 5270 All-in-One Service Manual page 5

Removing the antennas................................................................................................................................................ 89
Installing the antennas................................................................................................................................................... 91
Display panel.........................................................................................................................................................................93
Removing the display panel..........................................................................................................................................93
Installing the display panel............................................................................................................................................ 95
Display cable.........................................................................................................................................................................97
Removing the display cable.......................................................................................................................................... 97
Installing the display cable............................................................................................................................................ 98
Middle frame........................................................................................................................................................................ 99
Removing the middle frame......................................................................................................................................... 99
Installing the middle frame........................................................................................................................................... 101
4 Troubleshooting your computer..................................................................................................104
Enhanced Pre-Boot System Assessment - ePSA diagnostics..................................................................................104
Running the ePSA Diagnostics...................................................................................................................................104
Diagnostics..........................................................................................................................................................................104
Camera status indicator.................................................................................................................................................... 105
LCD built in self test - BIST.............................................................................................................................................. 105
5 Getting help............................................................................................................................. 107
Contacting Dell................................................................................................................................................................... 107
Contents 5