Originally Posted by
Adapter Creator
I think your APEX must be "leaking" a small amount of voltage to the adapter, even if it's set at 0℅. The adapter, by design, has pull down resistors on it's input side, so it has to be seeing some voltage from the APEX. Do you own a volt/ohm meter and feel comfortable enough with it to do some tests?
If you've got a voltmeter handy, you can test the adapter for stray voltage fairly easily. See the 8 tiny resistors aligned in a row next to the APEX inputs? Those resistors are set up in pairs as a voltage divider for each of the APEX's 4 channels. Connect your vom's red (positive) lead to the first resistor on the left (when viewed with the input side facing down). Contact the resistor with your probe on the soldered end closest to the input jacks. Connect the BLACK (negative) probe to the same spot on the resistor that's just to the right the first one. With your APEX channel 1 set to 0%, take a voltage reading and let me know what you find. If there's voltage present, and your APEX isn't deemed defective, I can adjust the software on the adapter to compensate.
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