Description
Genuine Vendo (SandenVendo) main control board, pulled from a working V21-series soda vending machine and bench tested. Powers up with a healthy heartbeat LED. The 12.4 Rev 16 firmware on this board is a newer revision than the standard cashless-upgrade chip (12.1 Rev 35) sold elsewhere — meaning this board is already credit card / MDB cashless ready out of the box. No EPROM upgrade required.
Board Details:
- Manufacturer: Vendo / SandenVendo
- Hardware: MCB-1V21A1-R / 77626-60012 (Japanese OEM)
- Hardware Part No: 1123051-15
- Installed Firmware EPROM: VEC 12.4 Revision 16
- Main MCU: Renesas H8/3007
- Power rails confirmed on board: 34V (MDB), 25V, 24V, 5V
Cashless / Credit Card Reader Compatibility:
This board’s 12.4 Rev 16 firmware supports MDB cashless devices, including:
- Nayax (VPOS Touch, Onyx, etc.)
- Cantaloupe ePort
- USA Technologies readers
- Other MDB Level 3 compliant cashless peripherals
The 34V MDB power supply rail is present and labeled on the PCB.
Compatibility:
Fits Vendo V21 series soda vending machines:
- Vendo V21-521
- Vendo V21-621
- Vendo V21-721
- Vendo V21-821
The 12.4 firmware supports both red LED single-line and LCD dual-line displays.
Programming Note (please read before purchase):
The 12.4 controller uses a 4-button programming system. If your machine originally shipped with a 3-button 12.1 firmware, the programming menu navigation will differ from your inner-door label. Function is identical — just the menu sequence is different. The V21 service manual covering the 12.4 programming menu is freely available online.
Condition: Used – pulled from a functional machine, bench tested, heartbeat LED confirmed active on power-up. No missing components, no corrosion, no burn marks, no damaged connectors. Mounting bracket and cover included as pictured.
What’s Included: One (1) Vendo V21 main control board with mounting bracket and cover, exactly as shown. No harnesses or additional hardware.
Shipping: Ships fast from St. Louis, MO. Carefully packed in anti-static material with cushioning to protect against transit damage.
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