Abstract: A printed circuit board, a heat radiating shield plate formed of a metallic plate, a printed circuit board and a shield plate are arranged in a base section of a apparatus body in a stacked state. Studs made of a metal projects from the heat radiating shield plate. Both ends of each of the studs come in contact with ground areas of the printed circuit boards and are electrically connected to these ground areas. A CPU mounted on one of the printed circuit boards comes in contact with the heat radiating shield plate through a cool sheet and is thermally connected to the heat radiating shield plate.

Abstract: An electronic apparatus has a housing with a peripheral wall. The peripheral wall has a lock hole in which a lock device is detachably engaged. A receptacle is formed in the housing. The receptacle has an insertion hole formed in the peripheral wall of the housing. The receptacle removably receives a functional component through the insertion hole. A lock member is disposed within the housing. The lock member is movable between a locked position where the lock member is advanced to the receptacle and irremovably locks the functional component in the receptacle and a lock release position where the lock member retreats from the receptacle and unlocks the functional component. The lock member has a first engaging hole which is continuous with the lock hole when the lock member is moved to the locked position and a second engaging hole which is continuous with the lock hole when the lock member is moved to the lock release position.

Abstract: A card insertion hole is formed in a side wall of a base portion of an apparatus body. A card storage portion for storing a PC card is provided in the base portion. The card storage portion has a case to which a PC card is inserted, and an end opening portion of the case is opposed to the card insertion hole with a predetermined distance therebetween. A frame-like cover member is arranged between the opening portion and the card insertion hole, thereby covering the gap between the opening portion and the card insertion hole. A card insertion path for communicating the card insertion hole with the opening portion of the case is defined in the cover member. A lid member for opening/closing the cover insertion hole is provided at the cover member.

Abstract: The portable electronic apparatus has a box-like casing having a peripheral wall, and a pack receptacle defined within the casing. The pack receptacle has an opening portion opened in the peripheral wall. A packaged functional component is stored in the pack receptacle, such that the functional component can be detached therefrom through the opening portion. The pack receptacle of the casing is provided with a locking member for holding the functional component. The locking member is movable by manual operation between a locked position where the locking member is hooked on the functional component and a lock-released position where the locking member leaves the functional component. The pack receptacle is provided with a spring for energizing the functional component in the direction in which the functional component is pushed out through the opening portion. The opening portion of the casing and the locking member are covered with a detachable cover.