I own a 1999 Lionel ZW transformer with 2-135 Watt power bricks.
The problem that just developed this month is the A-U terminals do not go to zero when I close the throttle. I measure 5.3VAC at the track when it should be zero. Any locomotive or lighted rolling stock still has their lights on when they should be OFF. The B-U, C-U and D-U terminals go to zero like they should.
Is there a repair procedure available to open up the control unit to adjust for proper voltage? Or has anyone done this who can tell me the procedure before I start cracking the case out of desperation?
Thanks in advance!