Ok for my sanity .......
RPi and BOSS 1.2
BOSS J25 OFF to feed power to RPi and BOSS individually
RPi & Isolator 1.2 & BOSS 1.2
Isolator J26 ON BOSS J25 ON to feed power to Isolator and BOSS individually.
J29 serves no purpose other than illuminating (or not) a LED?
The Allo docs aren't exactly clear, they could do with a little drawing showing each configuration.
Not that I can even power it up as the USB -C cables I ordered with 1st class postage last Monday still aren't here ... grrrrrrrrrrrrrr!
Garrard 401, Jelco 750 with Shuggie, Ortofon 2M Black / ZYX Yatra 100, Project Phono RS with Sigma22 Linear PS, RPi3 + DigiOne + Linear PS, RPi3/1Tb SSD with PiCorePlayer + Linear PS, Perreaux Eloquence 250i 40th Anniversary with ES9038Pro DAC, DCG3 Pre-Amp, Neurochrome 8x2 Pre-Amp, Neurochrome 686 Power amp, Benchmark DAC2 HGC, Primare V25 CD player, Monitor Audio PL300, Sjostrom DCT03 DC Blocker.