Reply to "New MTH CP Christmas Stage Boxcar Up in Smoke"

Jon GOGR Forum Member SUPPORTING MEMBER

These boards have a problem where the solder pads on the voltage regulator are too close together and short. Usually the LEDs are OK (I just repaired two in the last week); test them with a 9v battery and 220 ohm resistor. Direct replacement boards are not available, but we use the 6v lighting kit for dummy A-Units, remove the jumpers, cut a trace and move the resistor over from the bad board. Part number AG-0000016. You must have about 100 ohms between the volt reg output and the connector for the LEDs, or you didn't cut the trace on the board and will burn up the LEDs.

2/10/214:31 PM

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