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Re: QMX won't power off and odd voltages on Q103


 

Phil,

?LIN_REG_EN (the middle pin on the top of PCB #2) should be high when you want the 78M33 regulator switched ON and you should have ~3.3V at D103. What does the pin measure ? Ground that pin and the 78M33 will turn OFF.

73 Kees K5BCQ

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