Dell Latitude E6420 XFR (Early 2011) - Manual (Page 64)

Dell ™ Latitude™ E6420 XFR Service Manual
Page 64
4. Remove the I/O card.
32.2 Replacing the I/O Card
1. Replace the I/O card.
2. Install and tightenthe two M2.5 x 5-mm screw to secure the I/O card to the chassis.
3. Replace the system board (see Replacing the System Board Assembly).
4. Follow the procedure for After Working on Your Computer.
33 Speaker Assembly
33.1 Removing the Speaker Assembly
CAUTION: Before you begin any of the procedures in this section, follow the safety
instructions that shipped with your computer.
1. Follow the procedures in Before Working on Your Computer.
2. Remove the system board (see Removing the System Board Assembly).
3. Remove the four shoulder screws securing the left and right speakers to the chassis.
4. Remove the Speaker assembly.
33.2 Replacing the Speaker Assembly
1. Place the the left (L) and right (R) speaker assembly in the chassis.
2. Install and tighten the shoulder screws to secure the speakers to the chassis.
3. Replace the system board (see Replacing the System Board Assembly).
4. Follow the procedure for After Working on Your Computer.