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I have a Bachmann class 37 the special edition with lights and they work oddly, I fitted sound and she is fine but with my ZTC 505 id a press halt once the lights work, I have split the white yellow and blue from the 8 pin and wired blue to combined front and rear + and the remainder to white and yellow in case something was wrong with the bus, still no joy, no matter what. Taking here apart and running a 9 volt with resistor the lights work fine; could it be the chip/ It is an ESU loksound.
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