: On many digital systems (including NSM and competitors like TouchTunes), inserting larger denominations (e.g., $5 instead of $1) often triggers a "bonus credit" mode, giving you more plays per dollar. Hardware Modernization
Locate the "Aux Input" on the NSM amplifier (often found on the internal preamp board). Nsm Music Jukebox Hack
: Enter the programming mode and navigate to location P10 . Setting this value to 255 is a common method to enable free credits or free play. : On many digital systems (including NSM and