Dell Precision 3510, Service Manual

Page: 64 / 78

Steps
1. Remove the three (M2x3) screws from the left hinge and lift the hinge up.
2. Peel back the adhesive tape covering the IO board connector cable and disconnect it from the system board.
3. Disconnect the cable connectors from the IO board in the following order (left - right): USB cable, Coin-cell battery cable, third
connector.
4. Remove the single (M2x5) screw that is holding the IO board in place and lift the module away from the computer.
Installing the IO Board
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The figure indicates the location of the IO board and provides a visual representation of the installation procedure.
Steps
1. Place the IO board onto the mounting points on the palmrest and secure it using the single (M2x5) screw.
2. Connect the three cable connectors to the connectors on lower right side of the IO board, Using a single (M2x3) screw, install the
WWAN card and secure it in place.
3. Route the IO Board connector cable through the routing points under the fan assembly and connect the cable to the connector on the
system board. Fold the adhesive tape back onto the IO Board connector on the system board.
4. Using the three (M2x3) screws, close and secure the left hinge to the palmrest.
64 Disassembly and reassembly