About a week ago, an occasional gremlin short in Pasco power zone became a full blown gremlin!! I have spent several hours tracking it down and have eliminated most of the easy ones. Still not working. I canceled the June 30 op session...sigh...
I am pretty sure it lives in the common rail wiring. Next week I will begin to disconnect all the leads and rebuild the bus.
My plan will be to add another (3rd) Digitrax PM42 power zone circuit board and subdivide Pasco zone into 4 Zones thus further dividing power zones:
Reversing PM 42:
- Short detection for reversing sections
- Biggs OS to Troutdale OS
- Balloon Track in Portland
Second PM42 will have
- Portland Yard including Eugene
- Seattle Yard
- West Half of Main
- La Grande and Spokane Yard Staging
- Pasco yard
- West Pasco and Walla Walla
- East half of Mainline around Pasco
- Aberdeen and Helix
then re-attach leads to separate bus wires. Hope that does it.
I have spare PM 42 and am ordering more TAP 3M connectors from Mouser.
Hope to start work this week.