Dell Inspiron 7791 2n1, Service Manual

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Removing and installing components
Recommended tools
The procedures in this document may require the following tools:
• Philips screwdriver #1
• Flat-head screwdriver
• Plastic scribe
Screw list
NOTE: When removing screws from a component, it is recommended to note the screw type, the quantity of screws,
and then place them in a screw storage box. This is to ensure that the correct number of screws and correct screw type
is restored when the component is replaced.
NOTE: Some computers have magnetic surfaces. Ensure that the screws are not left attached to such surface when
replacing a component.
NOTE: Screw color may vary with the configuration ordered.
Table 1. Screw list
Component Secured to Screw type Quantity Screw image
Base cover Palm-rest and antenna
assembly M2x4 8
Battery Palm-rest and antenna
assembly M2x3 2
Wireless-card bracket Wireless card and Palm-rest
and antenna assembly M2x3 1
Right-display hinge I/O board M2.5x5 3
I/O board Palm-rest and antenna
assembly M2x4 1
Display-cable bracket Palm-rest and antenna
assembly M2x3 2
Fan Palm-rest and antenna
assembly M2x3 2
Hard-drive assembly Palm-rest and antenna
assembly M2x3 3
Hard-drive bracket Hard drive M3x3 4
Touch-pad bracket Palm-rest and antenna
assembly M2x3 3
Touchpad Palm-rest and antenna
assembly M1.6x2 2
2
8 Removing and installing components