Lenovo N20 Chromebook Hardware Maintenance Manual - Lenovo N20 Chromebook - Page 38

Step 6. Remove the 9 screws, followingreplacementparts, Upper case, Touchpadcable, Screw, label

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c d 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 ee e e e e Figure 9. Remove 9 screws Table 6. Screw specifications - removing the upper case Screw label 1 2 5 Specifications M2.5 × 5 mm, flat-head, nylon-coated M2 × 3.5 mm, flat-head, nylon-coated M2 × 3.5 mm, flat-head, nylon-coated Color Black Black Black Torque 3.7 - 4.0 kgf * cm 3.7 - 4.0 kgf * cm 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

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Figure8. Unplug touch pad cable
Step 6. Remove the 9 screws
5
;useascrapcreditcardorasimilarplasticcardtoslidethroughthe
groovesbetweentheuppercaseandthebasecovertodetachtheuppercaseandthenremoveit.
Figure9. Remove 9 screws
Table 6. Screw specifications — removing the upper case
Screw
label
Specifications
Color
Torque
1
M2.5×5mm,flat-head,nylon-coated
Black
3.7—4.0kgf*cm
2
M2×3.5mm,flat-head,nylon-coated
Black
3.7—4.0kgf*cm
5
M2×3.5mm,flat-head,nylon-coated
Black
1.7—2.0kgf*cm
RefertoTable3“PartnumbersforFRUs(CRUs)”onpage24tolookuptheLenovopartnumbersofthe
followingreplacementparts:
Upper case
Touchpadcable
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