If you are replacing a very old ACC logic bd. with mechanical dollar counter

  1. Existing 110v power-in harness and hopper harness will work as is.
  2. You will need a new GEN3-24VBA harness if you are going to use a 24v pulse bill acceptor, or a new GEN3-110VBA harness if you are going to use a 110v pulse bill acceptor (see photo 1).
  3. Your original ‘out harness’ is combined with the original ACC bill acceptor harness. Carefully slice the harness covering so that you can separate the ‘out wires’ (brown and orange) from the rest. The brown and orange “out” wires connect to the logic board in a 6 position connector. Cut the unused wires from this 6 position connector.

When you are done you will have a useable “out harness”. (photos 2, 3)

If you are replacing a “red display” single bill acceptor ACC bd

  1. All of your existing harnesses should transferred to the new GENESIS 3 bd. OK if you are going to continue to use a 110v bill acceptor.
  2. You will need a new GEN3-24VBA harness if you want to change to a 24v pulse acceptor. (photo 1)

If you are replacing a green display ACC UNI-bd

  1. Your existing 110v power-in harness and ‘out harness’ will transfer to new GENESIS 3 bd.
  2. If your hopper harness has the in-line 12 position connection; you can use it with the new GENESIS 3 controller. If your existing hopper harness only has the small 6-pin connection for the logic bd.; You will need a new harness with the large 12-pin connection.
  3. You will need a new bill acceptor harness: GEN3-24VBA for 24v pulse acceptor, or GEN3-110VBA for using a 110v pulse acceptor. (photo 1)



Unplug all wiring connections from existing/original logic board, and remove board from its 4 mounting studs. Mount new GENESIS 3 control board over mounting stud (above). If the original ACC board had mechanical counter or “red display”; you will be using the 4 mounting holes at the outermost corners of the board. If you are replacing a newer ACC board with green display (UNI-bd); you will be using the 4 mounting holes near the center area of the board. The mounting studs should have spacers on them that prohibit the circuit board from being pulled tight against the machine wall and shorting-out.  In any event- the new board must be kept spaced away from the cabinet wall.

Some cabinets were built with the older (larger) bolt pattern, and American used an adaptor plate to mount the newer UNI-bd with closer mounts. If this is what you’ve got; remove UNI-bd and adaptor plate.

If your original bd. was split into two sections; you will be mounting the new GENESIS 3 board. where the power supply section (ON/OFF sw) was.

Make sure the on/off switch is OFF. Plug in the 110 volt power plug along the bottom side of board. The 2 straight 12-pin connectors along the left side are for the hopper connections. Top connector is Left hopper, and bottom connector is Right hopper. If only one hopper is used; it can be at either position. Some of the machine hopper harnesses DO NOT have a proper keying pin in position #5 of the harness connector. Be sure to get the connector properly on to the board connecting pins. The 2-wire connection for the ‘out light’ is at the upper/right area of circuit board. The remaining connector at the right side / center area is for the bill acceptor connection.

After you have attached all harnesses, and checked they are correct, turn ON the on/off switch. It is possible that some cabinets MAY require the coin funnel(s) on top of the hopper(s) to be slightly repositioned for clearance.



The normal (idle screen) shows two things: the top row is “total dollar count” from the beginning of the control board; it CAN NOT be reset, the lower row shows “cycle dollar count” and it CAN be reset (see below). Whenever you finish a machine audit and filling, you can reset this number back to “0” to make it easy to keep track of the next audit period. Both counters will increment for each dollar accepted. If the machine goes into an error condition: the audit numbers will be replaced with a description of the error condition (error screen), the ‘out light’ should come on, and the hoppers and bill acceptor will be turned off. Once you have corrected the problem; press the RST (reset) button at the upper left area of board to return to operating mode. If error screen reappears; you HAVE NOT solved the problem.

Possible error messages:

  1. L coin blocked – coin exit window on L hopper is or was blocked
  2. R coin blocked – coin exit window on R hopper is or was blocked
  3. ba signal long – bill acceptor vend signal signal stuck ON too long
  4. ba count wrong – illogical bill acceptor pay signal, (ex. = 3)
  5. hopper timeout – One or both hoppers jammed or empty. Hoppers shut OFF after running 15 seconds with no coins coming out.
  6. L hopper LOW – Low coin level in L hopper. (Only if one hopper.)
  7. R hopper LOW – Low coin level in R hopper. (Only if one hopper.)
  8. ALL hoppers OUT – (two hoppers)

If you have activated the “bill limit” features, the following are also possible:

  • $1 pay limit
  • $2 pay limit
  • $5 pay limit
  • $10 pay limit
  • $20 pay limit
  • $50 pay limit
  • $100 pay limit
  • all pay limit


You can perform three functions from the programming screens:

  • Reset the “cycle dollar count”
    • From the idle screen, press the NXT button (NEXT) once. If you choose to reset this count; press the SEL button (SELECT) and you will be returned to the idle screen with the “cycle dollar count” reset to “0”.
  • Program the coin payout counts for all bills accepted.
    • The default settings of a new board are all hoppers contain 25c and payout equally, and normal cash payouts for $1 – 20 bills. Up to $100 bill can be accommodated. Coins in each hopper can be the same, or different values. From the idle screen, pressing the NXT button twice will get you to the screen where you can enter the area for setting coin payouts by pressing the SEL button. The next screen chooses whether the coins are the same, or different, in the hoppers. After that selection you will determine how many coins will be dispensed from each hopper for each bill type. NOTE: If you are using “coins alike” setup; hoppers will transfer when empty in order to stay in service. If using “coins different” setup; there will be NO transfer between hoppers when empty.
  • Set the “bill limit” parameters for machine shut-down. Default is OFF (inactive).
    • From the idle screen, pressing the NXT button three times will get you to the screen where you can enter the area for setting the “bill limit” parameters. The end of coin payout settings will also lead you to this point. The idea behind this section is to only allow “x” number of a certain bill type to be accepted within a period of “y” minutes. If that condition is met; then the machine will shut down for “z” minutes, and then return to operation. The first setting will be the “counting time” (y). The second setting will be for the “out time” (z). Each of these two times must be the same for all bill denominations. The final setting will be for the number of each bill type. You may set limits for more than one bill type; the system will keep track of each denomination separately. You may also make an entry for “all $ limit”. This will total the $ amount accepted (regardless of denomination) for the chosen time periods. If one of the pay limits is reached; when the “out time” (z) has run out and the machine comes back on-line, all of these “bill limit” timers will be reset to zero again for a fresh start. When the machine is in the ‘out’ mode; the out light will be ON and the screen will show what limit was triggered, and how the “out time” is progressing. EX- You only want a maximum of three $20 bills to be accepted within a 5 minute period, then shut down for 10 minutes.
      Set “count time” = 5 min.
      Set “out time” = 10 min.
      Set “$20 limit” = 003 (300 would be 300 bills = N.G.)

If you want to manually cut-short the “out time” period; pressing the RST will reset the machine back into service.

Photo 1

This is the harness end your bill acceptor should match up to. This is a standard ‘vending type acceptor’ harness connection.

American Change machine harness connection

Photos 2, 3

Left is the harness that connected to original ACC control board.
Right is what you will use for the out light harness for new GENESIS 3 board after modifications to original.

American Bill Changer Machine harness
American Bill Changer harness