145 473 National Vendors Snacktron 1 Refreshtron 3 Software

This digital manual provides essential technical information for the repair and maintenance of the 145 473 Door Controller models. It includes the backup code for the final version 00AA9, encompassing the code for both PROMs. The manual covers the 2732 EPROM and the respective checksums 00059E3Fh and 0006DF89h. Whether you're a professional mechanic or a DIY enthusiast, this manual is a valuable resource for ensuring the proper functioning of the Door Controller.