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
5. Disconnect the eDP cable from the connector on the system board and unroute it from the routing guide.
6. Disconnect the IR camera cable from its connector on the system board (for models shipped with an IR camera).
7. Disconnect the touchscreen cable from its connector on the system board (for models shipped with a touchscreen).
8. Peel the adhesive tape partially and unroute the WLAN antenna cables from the routing guides on the system board.
9. Remove the four (M2.5x5) screws that secure the display hinges to the system board.
10. Open the display hinges at an angle of 90 degrees.
11. Remove the display assembly from the system.
Installing the display assembly
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the display assembly and provide a visual representation of the installation
procedure.
64 Removing and installing components