@Buco posted:I have gone onto the new MTH parts site and located the electronics for my "Challenger", and the site lists three (3) different boards:1) PS3 Boiler FET Board - EMI Compliant (#18 on the parts list)
2) PS3 Boiler Relay Board - Non EMI Compliant (#19 on the parts list)
3) PS3 / O GAUGE STEAM / TENDER (UNIVERSAL) / W/SUPER CAPS / EMI COMPLIANT (#20 on the parts list)
I think I have a "dodgy" main board (see my post on trying to do a factory reset on my PS3 Challenger using my Z 750 transformer) and I have ordered one from MTH and put it on my "wish list", as it is out of stock at the moment. Thanks for the tip Mike!!!
Question: Should I purchase all three (3) circuit boards, or should replacing just the main board fix all of my problems? I purchased this loco through the Cabin Fever MTH Warehouse Auction - see handwritten note on the box.
Peter (Buco Australia)
First off, the relay boiler board has been discontinued, all of the locomotives are using the FET board. You only use one boiler board, and going forward that will be the FET boiler board.
A functional factory PS/3 steam installation has one boiler board and one tender board.
From your description, you are probably looking at the tender board as the probably replacement, but that's just a guess based on limited information. It would be best if you could have the boards tested before spending the money on buying a replacement that you may not need.
