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Title: Bally Proslot 5500 MPU Detailed schematic Post by: MarkInAz on May 12, 2009, 12:45:07 AM I sure could use a detailed schematic of this MPU board. I have an issue with the sound in my slant top & would like to see the sound generator in particular.
I'd appreciate it greatly. Title: Re: Bally Proslot 5500 MPU Detailed schematic Post by: Ozzy on May 12, 2009, 12:59:45 AM here is the mpu and all components, plus schematic for reel/sound part of mpu
U51 is the suspect IC cheers Ozzy Title: Re: Bally Proslot 5500 MPU Detailed schematic Post by: MarkInAz on May 12, 2009, 01:42:52 AM Great! I think I see my problem all ready. Thanks Ozzy.
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