Lenovo IdeaPad U310/U410 U310/U410 Touch
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Figure 6. Removal steps of fan assembly and heat sink assembly (continued)
U310/U310 Touch:
After removing fan, attach copper foil into the areas outlined by red in the
illustration below. The copper foil should start from the left edge of the system
board (noted by the blue baseline) and over the area marked in blue. Do not put
the copper foil over the white cable.
Note:
1. In the area indicated by the far left yellow circle, ensure good contact between
copper foil and the protruding white wire.
2. In the area indicated by the center yellow circle, attach directly to the flat
surface area, and make sure there is good adhesion between copper foil and flat
surface area. Avoid contact with LVDS cable: it may be necessary to lift up the
cable and then restore it to its ordinal position after affixing the copper foil.
3. In the area indicated by the far right yellow circle, ensure small copper plate
part has good contact. If there has been a white label attached, first clean plate
thoroughly then affix copper foil.
Under the fan and on top of the main structure, attach copper foil according to
the illustration below.
Note:
In the area noted by the green rectangle, attach directly to the main
structure. In the areas outlined by red ovals, take care to avoid the copper foil
breaking at these points, and assure good adhesion to the metal base.
