Retrodude

I know this is a crazy long shot, but, does anyone have a tip on where I could find the electrical schematic diagram for this radio? I love vintage stuff and this was my first radio many years ago. The throttle channel is bad and I would like to try repair. TIA!! BTW, this is the one with D/R and servo reversing.

JMP_blackfoot

It was made by Sanwa, it it may help ?

Retrodude

Thanks for the info. It might help!