I'm very experienced with Royal and Dixie Narco coke. That being said, I took a gamble on a recent purchase of a Cavalier C-9 coke machine.

It looks like the machine has been upgraded to a multi-price machine at some point in its life, as it came with the old coin entry plate and harnesses.

My issue: I can't get into the password protected portion of the menu. I've tried [4231] [1234] [4321] [4123], and some other simple combinations. Available # options are 1-9 using all of the selection buttons. Without access to the password protected part, I can't change pricing (currently free vend) or Space-to-sales configurations.

My question: Is there a different default password? Or is there a way to do a factory reset (assuming that the password has been changed and I don't know what it is)? -- The timekeeper chip on the logic board appears to be soldered in, not socketed.

Display is 8 character dot-matrix (instead of the usual 4 character LED display).

Pictures:

http://imgur.com/a/yCX6E#0