Cheers. That's better pics than I found, still could do with some hi-res. I'll keep looking.
The UART-0 port is showing 5V on PIN 1, 3.3V on PIN2.
The BBS port (JP54) is showing 3.3V on pin 1, 2, 3, and JP56 near the front of the PCB is showing 3.3V PIN1 and nothing PIN 2,3, PIN 4 is GND same...