Compact electronic apparatus having a detachable optional component

摘要

A compact electronic apparatus which includes a base unit and a main circuit board within the base unit. An optional component may be detachably stored in the base unit. A sub circuit board is detachably supported on the optional component and is substantially perpendicular to the main circuit board. The sub circuit board includes a first connector which is connectable to the optional component and a second connector electrically connected to the first connector and connectable to the main circuit board.