[rec.audio] At Your Table Jukebox Controller

kent@sunfs3.Camex.COM (Kent Borg) (04/08/91)

This afternood I bought an "AMI Music" jukebox controller--you know
the kind: a chrome plated cast box, one in each booth at the diner,
there is a coin slot at the top, a glass window with these lit pages
you can flip back and forth, and buttons down the sides next to each
selection.

With all the innards looking intact and in good condition I couldn't
resist buying it for $100.

*Now* what do I do?

I think I want to figure out how to get RS-232 out of the beast, then
I can "do anything" with it.

I know what the four terminals are: AC/DC Common, AC, Signal, and AC
Control.  I don't know what they mean, but I know where they are.  I
know the wiring does not look like 120 V.  (Plus, the wiring diagram
to a "Model G" jukebox makes it look like the AC comes from a power
transformer.)

I also know that this beast is complicated enough that I would rather
not reverse engineer it.  

(If someone knows what kind of volts this thing takes, I might figure
out a lot experimentally.)

General question: Does anyone out there have experience hacking these
contraptions?  

Some specific questions: What information was sent to the jukebox by
this box?  When?  Who counted whether the four selections for the 25
cents had all been choosen?  Who buffers the selections?  How does the
"data link" between the two boxes work?  What unexpected warnings
should I have before applying power to it?


(I admit I have not been a reader of these two groups, so forgive me
if this turns out to be an FAQ.  Please flame me with no mercy if I am
polluting the wrong groups--but trim the followup line first.)


Thanks for whatever wisdom you might offer.

--
Kent Borg                            internet: kent@camex.com   AOL: kent borg
                                            H:(617) 776-6899  W:(617) 426-3577
"We foolishly did not realize that he was stupid."  - April Glasbie 3-20-91