Reply to "Wiring Schematic for Lionel #38053 L2a Mohawk..."

gunrunnerjohnOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

Actually, with no serial data, the symptom is normally it takes off at full speed as soon as you crack the throttle. Check the 4-pin connector from the motherboard to the CC-M.

I only see two wires in the PWM connector, so you have no 5V to activate the opto-isolators, that's your problem. This connector should have four wires 1:1 from the motherboard to the CC-M, I think that will fix the problem.

You have no power to the input optos.

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1/20/1912:26 PM

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