mecha
Well-known member
Ribbit Racin' -- problems with sound, motors, and more
we picked up a Ribbit Racin' at auction back in December, mainly cause it was had for a decent price, despite the fact that we already had one. this was in nicer physical condition, but I learned when I got the damn thing back to the business that looks are very deceiving.
for one, I realized that the volume pot was completely disconnected. upon hooking it up, based on how the other old Ribbit machine was hooked up, I still had no sound. the sound pots on the sound board were dialed up to correct levels. I had amplifier hiss out of the speakers... as well as some weird feedback sounds like hums and hisses and bleeps, creeps and the sweeps.
I'm inclined to believe the sound board has issues. so I will swap boards.
the other fun issue, is that the 2 player frog motor won't move. I tried switching motors (a donor from the old machine) and flipping to the known good motor, no dice. I have continuity from the J5 connector on the main board up to the motor wires, so it's not a connection issue, I'm guessing something's just dead on the board. so I will be swapping the main board as well.
BUT FIRST, I will try a switching power supply (it was an update I did on the machine as per what Cadillac Jack instructed me to do) to see if it's got anything to do with that, but I tested all the voltages and they're all good except the +5. there's an adjustment pot on the old power supply board, does this adjust the +5 voltage by chance?
I don't expect any responses, but this seems to be a popular game in redemption arcades, so I was hoping at least one of you encountered it and have something to share.
thanks.
we picked up a Ribbit Racin' at auction back in December, mainly cause it was had for a decent price, despite the fact that we already had one. this was in nicer physical condition, but I learned when I got the damn thing back to the business that looks are very deceiving.
for one, I realized that the volume pot was completely disconnected. upon hooking it up, based on how the other old Ribbit machine was hooked up, I still had no sound. the sound pots on the sound board were dialed up to correct levels. I had amplifier hiss out of the speakers... as well as some weird feedback sounds like hums and hisses and bleeps, creeps and the sweeps.
I'm inclined to believe the sound board has issues. so I will swap boards.
the other fun issue, is that the 2 player frog motor won't move. I tried switching motors (a donor from the old machine) and flipping to the known good motor, no dice. I have continuity from the J5 connector on the main board up to the motor wires, so it's not a connection issue, I'm guessing something's just dead on the board. so I will be swapping the main board as well.
BUT FIRST, I will try a switching power supply (it was an update I did on the machine as per what Cadillac Jack instructed me to do) to see if it's got anything to do with that, but I tested all the voltages and they're all good except the +5. there's an adjustment pot on the old power supply board, does this adjust the +5 voltage by chance?
I don't expect any responses, but this seems to be a popular game in redemption arcades, so I was hoping at least one of you encountered it and have something to share.
thanks.
