[Android Phone Teardown] Panasonic-branded Main Board [Part 3]

Oct 28, 2008
Nikkei Electronics, Teardown Squad
When a seal was torn off, a full picture of the main board and a camera module appeared.
When a seal was torn off, a full picture of the main board and a camera module appeared.
[Click to enlarge image]
The main board and the camera module were removed. The character "M" (circled in red), which means the board was made by Panasonic, was found to the lower left of the vibration motor. And, to the left of the character, there was a 4.5 × 4.5mm module for a compass function (dotted red circle).
The main board and the camera module were removed. The character "M" (circled in red), which means the board was made by Panasonic, was found to the lower left of the vibration motor. And, to the left of the character, there was a 4.5 × 4.5mm module for a compass function (dotted red circle).
[Click to enlarge image]
An enlarged picture that shows "M" and the module for the compass function.
An enlarged picture that shows "M" and the module for the compass function.
[Click to enlarge image]

Continued from [Android Phone Teardown] Antenna in Camouflage [Part 2].

In the next step, we began to remove the main board.

The engineer looked over the board and said, "This is a board manufactured by Panasonic, isn't it?"

The character "M," the first letter of Matsushita, was seen on the board. The board was about 1.1mm thick. The engineer said that Panasonic's boards are used in many of the smartphones recently made by High Tech Computer Corp (HTC) of Taiwan.

Module for compass function

A camera module was connected to the main board with a long flexible substrate. On one side of the main board, opposite to the side with the connecting terminal for this flexible substrate, there was a silver-colored module with a size of about 4.5 × 4.5mm.

Characters printed on the module read "AKM8976A," which turned out to mean Asahi Kasei EMD Corp's magnetometric sensor module for a compass function.

T-Mobile USA Inc announced that the T-Mobile G1 is the first smartphone equipped with a compass function. One of the sales points of this handset is its ability to display the scene in the direction the user is facing by combining Google Inc's "Street View" and the compass function. And we found this new function was realized by a Japanese manufacturer.