I thought it let you change the price of an item lower or get free dispenses? I remember reading that! It got me interested in the code for machines and how to exploit hardware. Really good for my budding mind and future career in tech.
Only if the door were open. The 4-2-3-1, when locked, only displayed sales data. You had to pop the T-handle open and push another button to go into Service Programming to actually set prices with the front-panel buttons.
At the same time, all my local vending machines were dispensing with the old tubular locks - they all went to funky keyless remotes to unlock machines.
