Reply To: Accidentally plugged in to a 12v adapter, won’t boot

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#47331
Morpheus_79
Participant

The fuse F1 behind the 5V barrel jack input is rated for 32VDC/1,5A. That’s why it won’t protect your OSSC from damage caused by an accidentally connected 9V or 12V power supply. So the 12V from the power adapter most likely killed the voltage regulators U5 & U6. You could check if one of them or both short the main power supply line to ground like it’s described here (Verification -> 1.):

https://github.com/marqs85/ossc_pcb/blob/v1.6/assembly/assembly_tips.txt