Dell Latitude 5420 Rugged - Page 6

Removing the Battery bay.......................................................................................................................................... 123
Installing the Battery bay ............................................................................................................................................124
Left I/O board.................................................................................................................................................................... 125
Removing the Left I/O daughterboard..................................................................................................................... 125
Installing the Left I/O Board....................................................................................................................................... 126
Smart Card..........................................................................................................................................................................128
Removing the Smart Card Reader.............................................................................................................................128
Installing the Smart Card Reader............................................................................................................................... 130
Speaker................................................................................................................................................................................132
Removing the Speaker................................................................................................................................................ 132
Installing the Speaker...................................................................................................................................................133
System board......................................................................................................................................................................134
Removing the System board...................................................................................................................................... 134
Installing the System board.........................................................................................................................................137
Bottom Base Assembly...................................................................................................................................................... 141
4 Diagnostics...............................................................................................................................144
ePSA Diagnostics............................................................................................................................................................... 144
Validation Tools ............................................................................................................................................................147
LCD Built-in Self Test .......................................................................................................................................................153
Battery Status Lights........................................................................................................................................................ 154
Diagnostic LED................................................................................................................................................................... 154
Wi-Fi power cycle.............................................................................................................................................................. 155
BIOS recovery.................................................................................................................................................................... 155
BIOS recovery using hard drive..................................................................................................................................155
BIOS recovery using USB key.................................................................................................................................... 156
Self-Heal............................................................................................................................................................................. 156
Course Introduction..................................................................................................................................................... 156
Self-Heal Instruction.................................................................................................................................................... 157
Supported Latitude Models........................................................................................................................................ 157
5 Getting help............................................................................................................................. 158
Contacting Dell...................................................................................................................................................................158
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