| 摘要 |
PROBLEM TO BE SOLVED: To enlarge a functional parts setting area without enlarging the size of a prize ball tank. SOLUTION: A machine frame 1 is formed of an outer frame 2 for mounting on an island in a Pachinko parlor and a front frame 3 openably mounted in a single swing form on the outer frame 2. On the front frame 3, a back mechanism board 4 on which a prize ball tank 5 is assembled is mounted. On the outer periphery face of the prize ball tank 5, an external terminal board 6 for frame, a sound relay board 7, a display lamp relay board 8, and a prize ball supply relay board 9 are mounted. A game board 10 is mounted on the front frame 3. A board information terminal board 11 equipped on the backside of the game board 10 is protruded from a through-hole 12 formed in the back mechanism board 4.
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