Batboard

Doe's anyone know where I can get a schematic for the R-2550az display .
I have the service manual but Motorola felt it unnecessary to include an info on the display circuitry.

Bill WB3FZV

After extensive research I have found out that nothing was ever published for the display section.
However I did find a tech that was familiar with my problem .
Problem solved solder ring fracture at C213