Dell Latitude E5420

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22. Disconnect the following cables from the system board:

❍ thermal fan cable

❍ speaker cable

❍ audio board cable

❍ bluetooth cable

Main Page

Notes, Cautions, and Warnings3
Working on Your Computer4
Before Working Inside Your Computer5
Turning off Your Computer8
Battery9
Removing the Battery10
Installing the Battery12
After Working Inside Your Computer13
Recommended Tools14
PC Card15
Removing the PC Card16
Installing the PC Card19
Secure Digital (SD) Card20
Removing the Secure Digital (SD) Card21
Installing the Secure Digital (SD) Card23
Subscriber Identity Module (SIM) Card24
Removing the Subscriber Identity Module (SIM) Card25
Installing the Subscriber Identity Module (SIM) Card27
Expresscard28
Removing the Expresscard29
Installing the Expresscard31
Back Panel32
Removing the Back Panel33
Installing the Back Panel35
Keyboard Trim36
Removing the Keyboard Trim37
Installing the Keyboard Trim40
Keyboard41
Removing the Keyboard42
Installing the Keyboard48
Optical Drive49
Removing the Optical Drive50
Installing the Optical Drive53
Hard Drive54
Removing the Hard Drive55
Installing the Hard Drive60
Wireless Local Area Network (WLAN) Card61
Removing the Wireless Local Area Network (WLAN) Card62
Installing the Wireless Local Area Network (WLAN) Card65
Wireless Wide Area Network (WWAN) Card66
Removing the Wireless Wide Area Network (WWAN) Card67
Installing the Wireless Wide Area Network (WWAN) Card70
Memory71
Removing the Memory Module72
Installing the Memory Module74
CPU Door75
Removing the CPU Door76
Installing the CPU Door78
Heat Sink79
Removing the Heat Sink80
Installing the Heat Sink82
Processor83
Removing the Processor84
Installing the Processor86
Palm Rest87
Removing the Palm Rest88
Installing the Palm Rest95
LED Board96
Removing the LED Board97
Installing the LED Board101
Expresscard/Smart Card/Pcmcia Module102
Removing the Expresscard/Smart Card/Pcmcia Module103
Installing the Expresscard/Smart Card/Pcmcia Module107
Bluetooth Card108
Removing the Bluetooth Card109
Installing the Bluetooth Card114
Display Assembly115
Removing the Display Assembly116
Installing the Display Assembly122
Brackets123
Removing the Support Brackets124
Installing the Support Brackets129
Modem Card130
Removing the Modem Card131
Installing the Modem Card136
Audio Board137
Removing the Audio Board138
Installing the Audio Board142
System Board143
Removing the System Board144
Installing the System Board151
Coin-Cell Battery153
Removing the Coin-Cell Battery154
Installing the Coin-Cell Battery157
Input/Output Panel158
Removing the Input/Output (I/O) Panel159
Installing the Input/Output (I/O) Panel162
Power Connector163
Removing the Power Connector164
Installing the Power Connector167
Modem Connector168
Removing the Modem Connector169
Installing the Modem Connector172
Thermal Fan173
Removing the Thermal Fan174
Installing the Thermal Fan178
Speaker180
Removing the Speakers181
Installing the Speakers185
Display Bezel187
Removing the Display Bezel188
Installing the Display Bezel191
Display Panel192
Removing the Display Panel193
Installing the Display Panel197
Display Hinges198
Removing the Display Hinges199
Installing the Display Hinges204
Camera205
Removing the Camera Module206
Installing the Camera Module209
Specifications210
Technical Specifications211
System Information211
System Setup223
Overview224
Entering System Setup225
System Setup Options226
Diagnostics247
Device Status Lights248
Contacting Dell250
Contacting Dell251

Dell Latitude E5420 - Page 145

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