[Repeater-Builder] schematic and/or pinout diagram, Maxar 80, D51TSA4000BK

[KP3FT]

Hi all,
Does anyone have a scanned schematic and/or a pinout diagram for a Maxar 80 
lowband?  I moving one that is presently at 49.520 MHz, up to 50.065 MHz, but 
have no idea what the pins are for PTT, etc.  There is no microphone or other 
cables that came with the radio.  Thanks for any help.
Jeff KP3FT