Dell 14" Mobile Precision 3470 Mobile Workstation (Silver) - Manual (Page 40)

Steps
1. Disconnect the speaker cable from the connector on the system board.
2. Peel the tape that secures the speaker cable to the palm-rest and keyboard assembly.
3. Note the speaker cable routing, and unroute the speaker cable from the routing guides on the palm-rest and keyboard
assembly.
4. Lift the speakers, along with the cable, off the palm-rest and keyboard assembly.
Installing the speakers
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the location of the speaker and provides a visual representation of the installation procedure.
40 Removing and installing components