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[Android Phone Teardown] G1 Uses Same Trackball as BlackBerry [Part 5]

The sub-substrate (lower part) and the chassis with a trackball (upper part). A group of chips used for wireless LAN covers the left half of the sub-substrate. Located to the right of the chips is a Hall IC that recognizes the movement of the trackball. The rear side of the trackball is seen in the center of the black chassis. A plastic bar that connected the chassis unit with the display unit was located in the right part of the chassis.

The sub-substrate (lower part) and the chassis with a trackball (upper part). A group of chips used for wireless LAN covers the left half of the sub-substrate. Located to the right of the chips is a Hall IC that recognizes the movement of the trackball. The rear side of the trackball is seen in the center of the black chassis. A plastic bar that connected the chassis unit with the display unit was located in the right part of the chassis.