These new display boards are direct replacements for Rock-Ola boards 52030-A and 52035-A found in the MAX series of Jukeboxes that were manufactured by Rock-Ola from 1979. The original Rock-Ola Vacuum Fluorescent Displays fail over time and replacements are not easily obtainable. The new display boards feature LED display technology and are direct drop-in replacements for the old-style displays. Additionally, the new displays can be used with the original display driver IC (MM57163N) located in the Profit Setter Module.
Note that in a lot of cases the MM57163N chip itself is also faulty and for this reason, it is included in the Kit.
(The MM57163N is also available separately)
More information can be found here