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Old 08-20-2018, 07:34 PM   #17
eccerr0r
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Default Re: Treadmill DC Circuit no motor start

beware this looks like a nonisolated possibly capacitive couple PSU, but anyway by superposition,

Pin 1- 0.2, (out1) -- probably okay
Pin 2- 2.2, (in1-)
Pin 3- 0.5, (in1+)
Pin 4- 11.4, (VCC)
Pin 5- 0.1, (in2+)
Pin 6- 0.1, (in2-)
pin 7- 0.9, (out2) -- questionable, may be okay
pin 8- 0.2, (out3) -- this looks overdriven or bad?
pin 9- 0.2, (in3-)
pin 10- 0.6, (in3+)
pin 11- 0, (GND)
pin 12- 0.3, (in4+)
pin 13- 0.8, (in4-)
pin 14- 0.3 (out4) - questionable?

Which of U1 and U2 is this anyway?
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