I have this loco and its a great runner but every time I power up the layout the rear coupler fires. any ideas. using a Legacy system with a Lionel 180 Brick. Thanks. Rick
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Since this is a TMCC locomotive, I'd start by putting a 1uf 50V non-polarized cap across the coupler outputs on the tender motherboard. The cap should go right across the connector for the coupler, I typically solder them to the underside of the motherboard on the coupler connector pins.
If it fires immediately I would suspect a shorted triac for the coupler on the AD20 IR Rec. G
coupler does not get hot.will try and find the part I need when I return from York , wish radio shack was still around ! thanks for the help guys.
they are all gone in our area. last one closed 5 years ago or more