So I went into record mode (Record LED came on) and tried to enter DMX assign mode (REC+666) but nothing changed: display shows fader percentage (00). Up/Down buttons do nothing. Pressing "Rec" increments a number on the display. Tried DMX reset (REC+777) which worked but assign still doesn't work.
The 6 button works correctly as it's needed to enter record mode.
So now I've reset the DMX assignments and can't set it back! Any suggestions welcome.
Desk is 24 channel SceneSetter with the square buttons