itobandito
Member
WWF Superstars no Music but has fx, also eprom burning question
Hey gang,
So I made a supergun the other day and started testing/playing some of my boards. I tried my WWF Superstars and the music and sound fx where really really low and distorted. Both music and fx COULD be heard just at really low distored levels when the sound pot was cranked all the way. Then I remembered that the WWF SupersStars PCB requires -5v something my current supergun setup doesn't put out. So I decided to try it in my MK1 cab which does have a -5v output on the jamma harness connected.
For some reason now the sound effects could be heard but there is no music. I also noticed that two of the rom chips on the board did NOT have stickers covering the glass on the rom chips. Not sure if any UV light got in there and erased the chip while I was testing. I since covered the chips with electric tape to block the light.
Now I am not sure what the issue with this board is. I reseated all the chips, checked for blown caps, but can't figure it out. I do have a Willem Eprom burner I used successfully to burn some MK4 chips that got some UV light and got erased. I don't see the rom chips though listed in my Eprom burning program. The chips are labeled as being Toshiba TC571000D-15 chips. I just wanted to verify and if need be reburn the chips with my programmer. Anyone know of a setting or something that I can do this or do I need another adapter? Any tips for looking for other on board issues would also be helpful.
Hey gang,
So I made a supergun the other day and started testing/playing some of my boards. I tried my WWF Superstars and the music and sound fx where really really low and distorted. Both music and fx COULD be heard just at really low distored levels when the sound pot was cranked all the way. Then I remembered that the WWF SupersStars PCB requires -5v something my current supergun setup doesn't put out. So I decided to try it in my MK1 cab which does have a -5v output on the jamma harness connected.
For some reason now the sound effects could be heard but there is no music. I also noticed that two of the rom chips on the board did NOT have stickers covering the glass on the rom chips. Not sure if any UV light got in there and erased the chip while I was testing. I since covered the chips with electric tape to block the light.
Now I am not sure what the issue with this board is. I reseated all the chips, checked for blown caps, but can't figure it out. I do have a Willem Eprom burner I used successfully to burn some MK4 chips that got some UV light and got erased. I don't see the rom chips though listed in my Eprom burning program. The chips are labeled as being Toshiba TC571000D-15 chips. I just wanted to verify and if need be reburn the chips with my programmer. Anyone know of a setting or something that I can do this or do I need another adapter? Any tips for looking for other on board issues would also be helpful.
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