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SOUND REQUIREMENTs for Summit Systems Slot Machines
The HMS Sound board interfaces to the HMS Slot Controller board using the JDD connector behind the reels (back-left). The JDD connector and the HMS Slot controller board are both required for Sound.
Note: HMS Slot controllers with firmware prior to 2.7 require upgrade so that the 'sound signals' will be output to the HMS Sound board.
The RED connector is the JDD connector.