With the Steam PS2 upgrades I have done, I have been using the constant voltage board for the cab light and marker lights, and then using the headlight output from the PS2 upgrade.
I have a sick MTH premier big boy . It was working fine with some intermittent issues with the tether, but now will no longer function, I assuming a short somewhere in the wiring has wrecked the boards. It has a factory installed PS2 where there is a need for lighted number boards, and marker lights, cab light and fire. I am looking for a game plan to repair this myself with an upgrade kit.
Assuming the board (mux?)in the boiler is bad that the smoke, marker, cab and number boards are powered from, what else could I use if I planed to gut this engine and start over with an upgrade kit?
Would the PS2 board in the tender be replaceable by Steam PS2 upgrade kit, I noticed the current one has two outputs, one for a back up light and one that is for the red light (bulb) on tender.
What is the board for the tach reader in tender separate from the PS2 board (looks like there might be opto's on this board). Why does the steam upgrade kit not utilize this board?
