Hi,
thanks again.
Both Diodes are fines, voltage drop for both 0,235v and blocking in the other direction.
The silkscreen is not that great but i could confirm both diodes by reconstruction the circuit from the schematics.

Thanks!...

Hi,
thanks for your reply.
Yes, sure USB C Meter is available. After negotiation to 20v, +SDC_IN is 20V also.
I measured it on the ADP Pin on the ISL9538.
When applying 12V to the batteryconnector +SDC_IN is 0V

Thanks again!...

Hi,
I'm Rainer, I'm a IT Guy who loves electronics. I'm a maker and creating a lot of individual stuff for my (smart)home and also do some repairs.

BR

Hi,
I have a special question for a Dell Inspiron 7620 2-in-1 aka Antman 16N ADL UMA.
I got a defect unit and succesfully repaired it, I actually plan to use it as a server,
Sadly this mainboard is not working without attached battery, when USB C only is connected the mainboard does not start.
Ideally I would inject 12V to the batteryconnector and use it this way or alternatively use it with USB C connected.
I already tried to pull RUNPWROK up to 3.3v but it did not work.
Do you have an idea how to trick the board to run from either 12V or USB C?

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