This is what I have come up with from the pictures of your RG50-112 PCB.
I copied a picture of the tracks (mirrored) into KiCad, drew up the original schematic and made up the components.
I had to give the components names in KiCad so I made them up as I went. (Ie. R1, C1 etc)
I placed the components on the picture of the PCB tracks and drew the tracks in as close as I could.
I did find some differences compared to Randalls schematic so I changed my schematic to match what was on the PCB.
I think my version might be helpful for anyone who is trying to fault-find one of these amps as the components have names on the schematic and on the PCB drawing.
I copied a picture of the tracks (mirrored) into KiCad, drew up the original schematic and made up the components.
I had to give the components names in KiCad so I made them up as I went. (Ie. R1, C1 etc)
I placed the components on the picture of the PCB tracks and drew the tracks in as close as I could.
I did find some differences compared to Randalls schematic so I changed my schematic to match what was on the PCB.
I think my version might be helpful for anyone who is trying to fault-find one of these amps as the components have names on the schematic and on the PCB drawing.