I have been trying for some time for to get my FEF 4-8-4 steam engine working. was originally a PS- 2 5 volt board, which was bad, i installed a PS 2 3 volt board and DCS working perfectly, but when i tried it in conventional would not work.The sounds Quit immediately when powered down, BUT the boards works perfectly in another engine, does not make sense to me,was using 2.4 volt battery and verified voltage on battery with a multimeter back threw connectors.So i tried just plugging in the Super cap directly to to 2 pin charging circuit on the PS 2 3volt board! Still conventional does not work. took out boards again and they work perfectly fine in my test engine conventional works great!
I'm i missing something,I checked everything i can think of,but to no avail ?
Any Ideas GGG, or any other tech's with a idea to the problem!
Sincerely thanks for any ideas or tests to perform would be deeply appreciated!
Alan Mancus
engine item number is 20-3044-1 Proto sound 2