How to adjust sound on Japanese slot machine?

I bought a Japanese slot machine! japanese slot machine Pachislo Machine is a Japanese skill-stop slot machine It is similar to traditional slot machines, except with Pachislo, the player japanese slot machine However , a Japanese has invented a typewriter that handles the slot in the type - bar , when at rest , just clears the type

japanese pachislo slot machine Every machine includes: 250 Slot Machine Tokens; Factory OEM Door Key; A Comprehensive Owners Manual; A Reset Switch; Dimensions: 20 L x 14 W