Hmi - Connections - Maytag Commercial MYR20 Service Manual

Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before
operating.
Failure to do so can result in death or
electrical shock.
Connections on the HMI are:
J5 - Communication cable to the ACU board,
J3 - Wifi connector,
J10 and J11 - USB connectors,
Ribbon cable - membrane keypad,
J5

HMi - COnneCTiOnS

J8 - Coin 1 and coin 2 connector,
J7 - Service and vault switch connector,
J6 - Gen 2 card reader connector.
There is a 3 volt battery on the HMI, to
maintain real time clock, in case of power loss.
J3 J10 J11
4-21
J8 J7
3 Volt
Battery
Keypad
Ribbon Cable
J6