MM57163BR2 Replacement module shown in a Max2 (481) Credit Unit
The MM57163BR2 is a reverse engineered drop-in replacement for the original MM57163N.
This is the display driver chip that was first shipped with the Rock-Ola MAX 477 series of Jukeboxes in 1979.
The MM57163 drives the jukeboxes vacuum fluorescent displays with data sent from the credit unit CPU. This display data is latched and shown on the jukeboxes displays and is only updated when a new display data is received.
Max 2 Display working with the replacement MM57163
The MM57163BR2 is encased in a custom enclosure that protects it from the surrounding environment.
MM57163BR2 fitted in its enclosure
MM57163BR2 module installed in a 477 Credit Unit (without top rider)
Side view showing Max 477 Credit unit space restrictions
Max 477 Credit Unit with rider boards installed
More information can be found here