Service Manual
Table Of Contents
- Precision 3470 Service Manual
- Contents
- Working inside your computer
- Removing and installing components
- Recommended tools
- Screw list
- Major components of Precision 3470
- Micro Secure Digital (SD) Card
- Base cover
- Wireless card
- Solid-state drives
- Memory
- Battery
- Battery cable
- Assembly inner frame
- LED board
- Heat sink
- Speakers
- System board
- Power button with fingerprint reader
- Smart card reader
- Coin-cell battery
- Keyboard assembly
- Keyboard bracket
- Display assembly
- Display bezel
- Display panel
- Camera
- eDP/display cable
- Sensor board
- Display hinges
- Display back cover
- Dummy SIM-card slot filler
- Palm-rest assembly
- Drivers and downloads
- BIOS setup
- Troubleshooting
- Handling swollen Lithium-ion batteries
- Dell SupportAssist Pre-boot System Performance Check diagnostics
- Built-in self-test (BIST)
- System-diagnostic lights
- Recovering the operating system
- Real-Time Clock (RTC Reset)
- Auto RTC reset
- Backup media and recovery options
- WiFi power cycle
- Drain residual flea power (perform hard reset)
- Getting help and contacting Dell
Chapter 1: Working inside your computer...................................................................................... 6
Safety instructions.............................................................................................................................................................. 6
Before working inside your computer.......................................................................................................................6
Safety precautions.........................................................................................................................................................7
Electrostatic discharge—ESD protection................................................................................................................7
ESD field service kit ..................................................................................................................................................... 8
Transporting sensitive components.......................................................................................................................... 9
After working inside your computer..........................................................................................................................9
BitLocker..........................................................................................................................................................................9
Chapter 2: Removing and installing components.......................................................................... 10
Recommended tools..........................................................................................................................................................10
Screw list............................................................................................................................................................................. 10
Major components of Precision 3470............................................................................................................................ 11
Micro Secure Digital (SD) Card...................................................................................................................................... 13
Removing the microSD card......................................................................................................................................13
Installing the microSD card........................................................................................................................................ 14
Base cover........................................................................................................................................................................... 14
Removing the base cover...........................................................................................................................................14
Installing the base cover.............................................................................................................................................16
Wireless card....................................................................................................................................................................... 17
Removing the wireless card.......................................................................................................................................17
Installing the wireless card.........................................................................................................................................19
Solid-state drives............................................................................................................................................................... 21
Removing the 2230 solid-state drive ..................................................................................................................... 21
Installing the 2230 solid-state drive........................................................................................................................22
Removing the 2280 solid-state drive..................................................................................................................... 23
Installing the 2280 solid-state drive........................................................................................................................24
Memory................................................................................................................................................................................25
Removing the memory modules...............................................................................................................................25
Installing the memory module...................................................................................................................................26
Battery................................................................................................................................................................................. 27
Lithium-ion battery precautions...............................................................................................................................27
Removing the 4-cell battery..................................................................................................................................... 28
Installing the 4-cell battery....................................................................................................................................... 28
Battery cable...................................................................................................................................................................... 29
Removing the 4-cell battery cable ......................................................................................................................... 29
Installing the 4-cell battery cable............................................................................................................................ 30
Assembly inner frame........................................................................................................................................................31
Removing the assembly inner frame........................................................................................................................31
Installing the assembly inner frame.........................................................................................................................33
LED board........................................................................................................................................................................... 35
Removing the LED board...........................................................................................................................................35
Installing the LED board.............................................................................................................................................36
Contents
Contents 3