Dear Ludwig
Here follows the next chapters!
I have removed Q102 and Q101 and tested the LIN_REG_EN at the gate of Q101 I got +/-0.6V when pwr button is pressed. So my LIN_REG_EN is being puled down or shorted some where, for sanity I follow the signal pad and I removed the Q110 just in case. I measure again same +/-0.6V.
So now the only connection to the LIN_REG_EN is the STM32, same +/-0.6v on the LIN_REG_EN, seams that the Microcontroler without power is puling the signal down leading it not to start at all.
For sanity I replaced the pull-up resistor R101 and R102 (just in case) same status.?
In my guess I pin pointed this the a problem with the STM32.
SO.... now the hard part... disconnect the SPM32 Pin 88 from the LIN_REG_EN! Done... and confirmed the LIN_REG_EN now measure 12v as VIN. ?
The problem seams to be with the STM32 from the beginning, (So no via issue!!!!Sorry for that one) probably no issue with Q101 and Q102.?
Any way I might be wrong!
Question is what to do next I would like to have the QMX + fully working, some how the STM32 got damaged or came like that.
And thank You so much for the support!
73 Azgael
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