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
Next steps
1. Install the battery.
2. Install the wireless card.
3. Install the base cover.
4. Install the microSD card.
5. Follow the procedure in After working inside your computer.
LED board
Removing the LED board
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the microSD card.
3. Remove the base cover.
4. Remove the 2280 solid-state drive or 2230 solid-state drive.
5. Remove the battery.
6. Remove the wireless card.
7. Remove the assembly inner frame.
About this task
The following image indicates the location of the LED board and provides a visual representation of the removal procedure.
Steps
1. Disconnect the LED-board cable from the connector on the system board.
2. Peel the LED-board cable from the computer.
3. Remove the single screw (M2x3) that secures the LED board to the palm-rest assembly.
4. Lift the LED board and cable away from the palm-rest assembly.
Removing and installing components
35