At the end of the year I had to replace the computer board on my 2-8-8-2. Replaced by a MTH Tech. I have noticed it does not have the 1mph start anymore. It's starts with jerks up to 3-4 scale mph when using DCS. I could be mistaken, but in the past in conventional mode I thought, I use to ease up the throttle and it chuffed up at a very slow speed. When I went to DCS, it had shown to start at 1mph. Whats up?
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I'm assuming there were no mechanical issues that caused the board change...and presumably you confirmed the new boards were loaded with the correct soundset for the engine.
A couple things to try that you can do without taking off the shell.
When the engine gets up to a somewhat smooth speed at 3-4 MPH or whatever, are you getting exactly 4 chuffs per wheel revolution (assuming it's set to 4/rev)?
If convenient, can you run in conventional and turn OFF speed control (W-B-B followed by a double-toot acknowledgement)? Then slowly increase the throttle and see if the slow speed behavior is jerky. Also, in conventional with speed control OFF or ON, you should get exactly 4 chuffs per wheel rev.
Was this a 5V board that was upgraded to a 3V board? G
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