Tool/software:
I am not sure why I hear a noise when I use this board to power downstream devices. I tried everything
-i thought its a grounding issue so removed all wires and now just power one board using barrel jack pig tails
-i have also removed the battery to eliminate any source of issue and just use USB C source (max 45W) and SYS output to ppwer my downstream. Everytime i power on i hear the screeching sound.
- when i power my load using its own power adapter that never happens.
Can someone please help. I do not know if I should proceed with testing