So the sound from JAMMA boards in mono on my Blast City has gone dead quiet, if you turn it up to max volume you can sort of hear the game but there is an overpowering buzz to it.
I read this means that the amp itself is blown, so doing a cap kit won't resolve the problem?
As it happens, I had purchased a pair of Model 3 sound amps from eBay as "untested" previously so I figured I'd give one a try.
One of them has right angle connectors for CN4 and CN1 which don't fit the wiring in the Blast City PSU as well as some weird mods to CN3 and CN2, so I figured I would use the other one that's more of a drop in replacement.
However, on taking a look at it one of the resistors was broken in half. No problem, I swapped it from the other amp and gave it a try.
Hooking it up, I get much louder sound albeit a bit lower than what I'd call normal - however, there is still a buzz to the audio at any normal levels.
Would recapping the model 3 amp fix the buzz? Anyone know what could cause that issue?
I read this means that the amp itself is blown, so doing a cap kit won't resolve the problem?
As it happens, I had purchased a pair of Model 3 sound amps from eBay as "untested" previously so I figured I'd give one a try.
One of them has right angle connectors for CN4 and CN1 which don't fit the wiring in the Blast City PSU as well as some weird mods to CN3 and CN2, so I figured I would use the other one that's more of a drop in replacement.
However, on taking a look at it one of the resistors was broken in half. No problem, I swapped it from the other amp and gave it a try.
Hooking it up, I get much louder sound albeit a bit lower than what I'd call normal - however, there is still a buzz to the audio at any normal levels.
Would recapping the model 3 amp fix the buzz? Anyone know what could cause that issue?