My MacchiatoBin board (SolidRun ARAMDA 8040 Community board) appears to have died. It does not boot, there’s no output at all on the serial console. I have had it since around September 2017
When it first died, there was a high-pitched whistling noise coming from somewhere on the board but now even that noise has stopped.
I have tried using different power supplies but it made no difference.
The single green LED on the board does come on when the board is powered up but that is the only sign of life.
Any ideas as to what is wrong/how to diagnose?