Looking for 691DCDS102 motor driver board. I believe I have it narrowed down to to. The engine would start running wide open. Took the shell off found the FETs burning hot. One desoldered and would trip the circuit breaker. Replaced that one and same thing. Unplug the track power wire to that circuit board all the command features work except speed. Put a 9 volt battery to the motors and didn't seem like they were pulling excessive amps. And it's the same problem in command or conventional. Thinking the bridge rectifier is bad but still learning
Anyway looking for the board missed out on Lionel half off weekend. Not wanting to change to a ERR board because I lash it up with other legacy engines. Hoping to be steered in the right direction and not spend more than 50$ or I'll wait till next year. I know authorized dealers get parts at half off. Thanks Patrick
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