Roller Disco
Gottlieb, 1980You're currently viewing posts by Pinsider jakers.
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I’m slowly but surely bringing this Roller Disco back to life. It’s been a learning process to say the least.
I’ve got the game flipping but there is no sound. How do I test the sound board and what connections in the backbox are for the sound board? I tested the pins at the sound board connector and am not seeing much voltage on them.
Quoted from a31ford:If it is a system 1. switch 20 (in the row of dip switches top of main board, is game sound on/off (top portion of that switch is in (depressed)), for game sound. Read the switches L to R, 1 to 8, next 8 is 16, 3rd bank of 8 is 24.
SOMETHING to NOTE, I had a problem with a game that was random game sound (some times when powered up it would work, other times it would not, HOWEVER, coin and game start sounds worked correctly regardless. (23 and 14 respectively).
TURNS OUT.... that the dipswitch leads (in the sockets) where the cause, powered off the machine, removed and re-seated each bank... "TA-DA" 100%....
Greg
It is system 1. I've tried an original Gottlieb System 1 CPU board and a Ni Wumpf CPU board with this sound board. I get no sound using either board which leads me to believe either the sound board is dead or there is a loose connection. Can anyone confirm what connections in the backbox are for the sound board?
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Howell, MI