- Notes, cautions, and warnings
- Working on your computer
- Major components of your system
- Technology and components
- Disassembly and reassembly
- SD card
- SSD door
- Secondary M.2 solid-state drive
- Base cover
- Battery
- Solid State Drive
- Secondary memory module
- SIM card
- WLAN card
- WWAN card
- Keyboard lattice
- Keyboard
- Primary memory module
- Heat sink
- Power-adapter port
- Power button board
- Power button board with fingerprint reader
- Inner frame
- Smart-card reader
- Touchpad button
- SD card reader
- Power button
- Power button assembly with fingerprint reader
- GPU power cable
- System board
- GPU card
- Speaker
- Middle cap
- Display assembly
- Palm rest
- Display bezel
- Display panel
- Display hinges
- Camera
- P-sensor board
- Display cable
- Display back cover
- Troubleshooting
- Getting help
Precision 7750 Service Manual
Installing the WWAN card
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
Steps
- Connect the antenna cables to the connectors on the WWAN card. The following table provides the antenna-cable color scheme for the WWAN card of your computer.
Table 1. Antenna-cable color scheme Antenna-cable color scheme Antenna Cable Color Pin Definition White / Grey ANT0 Blue ANT1 Orange ANT2 Black / Grey ANT3 The connections are also printed on the WWAN card slot.
- Align and slide the WWAN card to its slot on the system board.
- Place the WWAN card bracket above the WWAN card to secure the antenna cables.
- Tighten the (M2x3) screw to secure the WWAN card bracket to the system board.
Next steps
- Install the base cover.
- Install the SD card.
- Follow the procedure in after working inside your computer.
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