PURPOSE: To provide the card system game device which can settle simply, in the case of a fault of an electric apparatus such as a ball lending operating switch and a balance indicator, etc.

CONSTITUTION: In the card system game device for discharging a lending ball by an operation of a ball lending operating switch 46, based on inserting a card into a card insertion port, a 7 segment indicator 45 for displaying the balance of the card, a ball lending operating switch 46, a card return operating switch 48, and a ball lendable display lamp 47 are attached to a ball lending operating base board 14 of 1, and the ball lending operating base board 14 is detained and attached to an outside part 13 of a supply pan in an attachable/ detachable state.