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
Steps
NOTE:
The system board can be removed and installed with the thermal module attached in order to simplify the procedure
and preserve the thermal bond between the system board and heat-sink. In order to do so, technicians must also remove
the two (M2x5) screws the secure the system fan to the system board.
1. Slide the system board to make the USB Type-C connector to toe-in to the hinge saddle and align the screw holes on the
system board with the screw holes on the palm-rest assembly and keyboard assembly.
2. Replace the four (M2x3) screws to secure the system board to the palm-rest assembly and keyboard assembly.
3. Align and place the USB Type-C bracket on the system board.
4. Replace the three (M2x5) screws that secure the USB Type-C bracket to the system board.
5. Route the coin-cell battery cable under the system board and connect the coin-cell battery cable to the connector on the
system board.
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Removing and installing components