Touch Controller Module (Optional); Removing The Touch Controller Module; Replacing The Touch Controller Module; Display Led Board - Dell LATITUDE E6400 XFR Service Manual

2. Tighten the captive screw securing the Microphone/Camera Module to the display back
3. Reconnect the flex cable to the Microphone/Camera Module
4. Replace the display bezel(see Replacing the Display Bezel).
5. Follow the procedures in (After Working On Your Computer).

18 Touch Controller Module (Optional)

18.1 Removing the Touch Controller Module

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 display bezel (see Removing the Display Bezel).
3. Disconnect the flex cable identified in the figure below.
4. Disconnect the USB cable identified in the figure below.
5. Remove the M2x3 mm screw securing the Touch Controller module to the Display Back.
6. Remove the Touch Controller Module

18.2 Replacing the Touch Controller Module

1. Install the Touch Controller Module into the Display Back.
2. Replace and tighten the M2x3 mm screw securing the Touch Controller Module to the display back
3. Reconnect the USB cable to the Touch Controller Module
4. Reconnect the flex cable to the Touch Controller Module
5. Replace the display bezel(see Replacing the Display Bezel).
6. Follow the procedures in (After Working On Your Computer).

19 Display LED Board

19.1 Removing the Display LED Board

CAUTION: Before you begin any of the procedures in this section, follow the safety
instructions that shipped with your computer.
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Dell Latitude™ E6420 XFR Service Manual
1 Flex Connection 2
3 M2x3 mm (1) 4
Touch Controller Module
USB Cable Connection