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IGT S and S-plus Reel Games / Installed new S+ MPU board now there is no sound.
« Last post by hornetgod13 on Today at 12:37:49 PM »I ordered and received a spare 10 mhz S+ MPU board. I went to tested it on a known good machine.
I installed the reel chip and went through the clear process and than put the the SP chips in and it booted up and plays but it has no sound. Even when I did the reset there was no ding. I have checked/adjusted the volume wheel and the dip switch #3 in on and off settings. It does have reel stop sounds from the handle solenoid but no coin drop, winning or reel spin sounds.
I put my original known good board back in and I have sound so there's something up with this board. Do you know what it could be? The board itself looks like it's missing a couple chips (U18 and U49) but I don't know if they're relevant or not too sound. Any help or guiance would be greatly appreciated.