Original sound board option switches S1 and S2

S1 off gives continuous sound, S1 on gives scoring sounds only. S2 off disables the attract tune; S2 on plays an attract tune about every 6 minutes. S3 is the test push-button.

Systems

• Gottlieb System 80

Related tips

• How the original System 80 sound board makes sound
• The original sound board self-test only works with S1 and S2 set opposite
• Supplies on the original System 80 sound board
• Fault-finding the original System 80 sound board
• No sound at all
• Distorted sound
• The wrong sounds or tunes play
• Original sound board connector A6-J1

Source: System 80 Service Manual, Gottlieb