According to PCA10028_Schematic_and_PCB.pdf (Rev 1.2.0), page 7, there should be SB22-25 surrounding TP5-8:
On my PCA10028, I have TP5-8, but no SB's there:
What gives?
BTW, they're there on PCA10040.
Thanks, Tom
My PCA says V1.1.0 right on it - clearly down-level.