My DOA Williams Cab Forward got a new QSI DCRU-WS installed to get her moving.
And after I installed it per the QSI instructions she did move....but only in reverse!!!
The QSI DCRU cycles through the sequence of F-N-R-N-F but the loco only moves when the unit is in reverse....and I confirmed it's reverse as the DCRU does activate the back-up light when it moves.
This is on my test bench. Lionel tubular track. I have both a Lionel CW-80 pack and a MTH Z-750 on my bench.
Both yeild the same results. I have checked all wire connectivity, DCRU is grounded with supplied 'brown wire',
jumper wire is in place between L1 and L2 and has been reseated.
Any ideas or did i get a dead board to go with my dead loco???
The board does look like a NOS unit....sealed in factory bags, instructions and box.
Many thanks.....help me get my Cab Forward going!
Borrowed pic of board.....
And my nice....but idle loco.....
