Continued from [PS Vita Teardown (2)] Antennas Stored in Back Half of Case
In the front half of the PS Vita's case, there were three moderately-large printed circuit boards (PCBs). One of them was the main board that was equipped with an application processor, etc and located in the center of the case. And the other two PCBs, which seemed to be mounted with a keypad, etc, were located to the right and left of the main board.
The main board and the other two PCBs were connected via thin metal plates. They did not seem to be electrically connected with the plates. Instead, the plates seemed to be used for fixing the PCBs.
The thin metal plates were fixed with two kinds of screws that were pink and blue, respectively. Probably, Sony used the two colors so that they are not mistaken for each other when being assembled. But we wondered why Sony could not use just one kind of screw?
Apparently, there were various electronic parts mounted on the main board. But they were covered by metal shields. To examine their details, we had to continue the teardown.