hey Stan hi, thank you for your interest,
below I write the measurement results, I just did not disassemble and measure D109,
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Vdd-Gnd = 0,33 Kohm
Vcc-Gnd? = 3,70 Kohm (0>6Kohm>0>3.70Kohm was moving to be)
Vcc-12V? = 0,65 Mohm
?
If I hold down the start button, flux is bubbling on D103, D109 seems to heat up for half a second,
