MTH Protosound 2 Chugging Issue

KSG350OGR Forum Member

Hello! I own this MTH Long Island 4-4-2 with protosound 2 and Im having an issue where when i turn on the smoke, it chuggs alot as if it is going at full speed. Any idea what's wrong with it? I put a video showing whats wrong

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4/30/2311:16 AM

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gunrunnerjohnOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

If this is a 5V board, this is a known issue at times.

We have found that some models exhibit chuffing in neutral. To eliminate this problem place a 10K
ohm resistor in line with the orange wire going to the tach reader. This applies to 5 volt Ps2
equipped models only. The 3 volt Ps2 Board has the 10K ohm resistor on the board.

4/30/2311:22 AM

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