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
Heat sink.............................................................................................................................................................................. 37
Removing the heat sink and fan assembly - UMA...............................................................................................37
Installing the heat sink and fan assembly - UMA.................................................................................................38
Speakers.............................................................................................................................................................................. 39
Removing the speakers..............................................................................................................................................39
Installing the speakers................................................................................................................................................40
System board..................................................................................................................................................................... 42
Removing the system board..................................................................................................................................... 42
Installing the system board....................................................................................................................................... 46
Power button with fingerprint reader.......................................................................................................................... 49
Removing the power button.....................................................................................................................................49
Installing the power button........................................................................................................................................51
Smart card reader............................................................................................................................................................. 52
Removing the smart card reader.............................................................................................................................52
Installing the smart card reader............................................................................................................................... 53
Coin-cell battery................................................................................................................................................................54
Removing the coin-cell battery................................................................................................................................54
Installing the coin-cell battery..................................................................................................................................55
Keyboard assembly........................................................................................................................................................... 55
Removing the keyboard assembly...........................................................................................................................55
Installing the keyboard assembly............................................................................................................................. 57
Keyboard bracket.............................................................................................................................................................. 58
Removing the keyboard bracket..............................................................................................................................58
Installing the keyboard bracket................................................................................................................................60
Display assembly.................................................................................................................................................................61
Removing the display assembly................................................................................................................................ 61
Installing the display assembly..................................................................................................................................64
Display bezel....................................................................................................................................................................... 67
Removing the display bezel.......................................................................................................................................67
Installing the display bezel.........................................................................................................................................68
Display panel.......................................................................................................................................................................69
Removing the display panel...................................................................................................................................... 69
Installing the display panel......................................................................................................................................... 73
Camera.................................................................................................................................................................................76
Removing the camera.................................................................................................................................................76
Installing the camera...................................................................................................................................................78
Removing the infrared camera................................................................................................................................. 79
Installing the infrared camera....................................................................................................................................81
eDP/display cable..............................................................................................................................................................82
Removing the eDP/display cable.............................................................................................................................82
Installing the eDP cable..............................................................................................................................................83
Sensor board...................................................................................................................................................................... 84
Removing the sensor board...................................................................................................................................... 84
Installing the sensor board........................................................................................................................................ 85
Display hinges.....................................................................................................................................................................86
Removing the display hinges.................................................................................................................................... 86
Installing the display hinges.......................................................................................................................................87
Display back cover............................................................................................................................................................ 89
Removing the display back cover............................................................................................................................89
Installing the display back cover.............................................................................................................................. 89
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Contents