1546 TCS Train Control Systems / Bachmann-MB3 Motherboard (SCALE=HO) Part # 745-1546

This is a Bachmann-MB3 motherboard for train control systems in HO scale, part number 745-1546. It has dimensions of 2” x 1.19” x .48” (50.8mm x 30.2mm x 12.2mm). Compatible with WOW121-Steam and EU621. Designed to replace the existing circuit board in a Bachmann Baldwin 2-8-2. It can receive a WOW121 or EU621 decoder and comes with an onboard Keep Alive® (KA2 style) for smooth performance on tricky tracks. It also includes a rear LED light and onboard resistors for all LED solder pads. Note: this product needs a decoder (EU621 or WOW121) to work.

To use this motherboard, first make sure you have an EU621 or WOW121 decoder as the product won't work without it. Then, replace the existing circuit board in your Bachmann Baldwin 2 - 8 - 2 with this one. Connect the decoder to the motherboard as instructed. When you run your train, the onboard Keep Alive® (KA2 style) will ensure smooth performance even on troublesome tracks. As for maintenance, keep it clean and free from dust. If there are any issues, check the connections first. Avoid exposing it to extreme temperatures or moisture.