PS 2.0 Loco problem

Bill, The slave board sounds like it is damaged.  I can repair or replace.  Many time the Slave can be repaired at the component level.  E-mail in profile.  G

Bill,

The first thing to check is that the tether is tightly connected.

Assuming it is, the problem is almost certainly due to a defective slave board in the trailing A unit. This is a known problem with some PS2 slave boards.

Barry, he stated as soon as track power is applied it started off in reverse.  That is a motor fet failure.  Even with a disconnected harness the Slave should remain motionless when power applied.  G

George,

Even with a disconnected harness the Slave should remain motionless when power applied.

I knew that, however, I though I'd toss him a "hail Mary" before diagnosing a broken slave board.

Good to see some optimism...G

Thanks, guys.

Barry is right on, I had a F-3 AA  about that same vintage, that did exactly the same thing. It was still in warranty so MTH fixed it by replacing the slave board in the trailing A

You mean George was right on in post 2?  We like to repeat ourselves around here.  G

Barry is always right

Chuck,

Barry is always right

If only that were  true...

No one has ever been always right! 

Actually, it wasn't a slave board issue, it had to do with coupling in the motor lead wires either through the trail harness or internally that was causing motor FET to over heat and short.

The fix was to ensure the motor leads where twisted the entire length inside the trail A with Slave, and even modify the B unit harness internally to ensure the motor leads were twisted.    G

Barry is always right

Actually, last week he had left.

Welcome back.  How did the trip go, Barry?

Robert,

We had a great time going "round the horn" in South America. We saw lots of Penguins in the Falkland Islands!