modessitt
Volunteer: Encyclopedia Submission Moderator
Went and looked at some games yesterday, and fixed them all but two with sound issues:
Mortal Kombat - Everything seems to work fine except for some of the sounds. None of the voices work ("Fight!", "Finish him!", "Hiya!") and the smack noises also don't work. The voices sound garbled and unrecognizable, and the smack noises just give a faint "pfft". However, the tunes work just fine. Sound diagnostics don't tell me anything specific. I just advance through the five sounds and the tunes play fine while the smack and the Hiya do not.
I'm thinking this may be a bad sound ROM, or possible a cap issue? If it's a ROM, anyone know which specific one(s) I should replace to see?
Another thing is that I can't enter Test through the switch inside the coin door, so I had to do so via dip switch. When it was on Coin Play, hitting a coin switch caused the game to jump to a COIN SETTINGS SET BY CMOS screen, then back to the title screen that would let you play. Once on Free Play, that stopped happening.
Any advice is appreciated...
TMNT - When first turned on, this game works fine - sounds and all. After being on for a while (maybe 20 minutes), the sound starts getting static-y. Turn off and right back on and it stays static-y, so it appears to be heat-related. Should I suspects caps, ROMs, or maybe the amp? Any advice is is appreciated...
Mortal Kombat - Everything seems to work fine except for some of the sounds. None of the voices work ("Fight!", "Finish him!", "Hiya!") and the smack noises also don't work. The voices sound garbled and unrecognizable, and the smack noises just give a faint "pfft". However, the tunes work just fine. Sound diagnostics don't tell me anything specific. I just advance through the five sounds and the tunes play fine while the smack and the Hiya do not.
I'm thinking this may be a bad sound ROM, or possible a cap issue? If it's a ROM, anyone know which specific one(s) I should replace to see?
Another thing is that I can't enter Test through the switch inside the coin door, so I had to do so via dip switch. When it was on Coin Play, hitting a coin switch caused the game to jump to a COIN SETTINGS SET BY CMOS screen, then back to the title screen that would let you play. Once on Free Play, that stopped happening.
Any advice is appreciated...
TMNT - When first turned on, this game works fine - sounds and all. After being on for a while (maybe 20 minutes), the sound starts getting static-y. Turn off and right back on and it stays static-y, so it appears to be heat-related. Should I suspects caps, ROMs, or maybe the amp? Any advice is is appreciated...
Last edited:


