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Lenovo N20 Chromebook User Manual

Page 38

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d

c

Figure 8. Unplug touch pad cable

Step 6.

Remove the 9 screws

5

; use a scrap credit card or a similar plastic card to slide through the

grooves between the upper case and the base cover to detach the upper case and then remove it.

e

e

e

e

e

e

e

e

e

Figure 9. Remove 9 screws

Table 6. Screw specifications — removing the upper case

Screw
label

Specifications

Color

Torque

1

M2.5 × 5 mm, flat-head, nylon-coated

Black

3.7 — 4.0 kgf * cm

2

M2 × 3.5 mm, flat-head, nylon-coated

Black

3.7 — 4.0 kgf * cm

5

M2 × 3.5 mm, flat-head, nylon-coated

Black

1.7 — 2.0 kgf * cm

Refer to Table 3 “Part numbers for FRUs (CRUs)” on page 24 to look up the Lenovo part numbers of the
following replacement parts:

Upper case

Touch pad cable

32

Hardware Maintenance Manual