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

J1 gets the four pin connection from the motherboard with the PWM signals and the 5V from the R2LC.  It's a plug-n-play affair, just move the connector to the CC-M from the DCDS.  You should not be doing ANYTHING but moving this connector to the new board.  Don't use their regulator, it's not needed. 

The CC-M will work with the J1 connector, the J3 connector, and pin 1 of the J4 connector.  I've never felt the need to connect a cruse enable switch, so I never connect anything to the programming connector.

The marker and ditch outputs on J4 are for a single LED, and as I stated previously, I've never used the J4 pin-2 output.

I think the reason that they used the regulator for the DCDS is they were also using the R2LC 5V for the IR tether transmitter.  Since the regulator on the R2LC is just a TO92 package, it's only good for around 30-35ma, and driving the opto-isolators on the DCDS and the IR drawbar must have been too much.

Last edited by gunrunnerjohn

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