First timer so sorry if this is a topic that has been seen before.
Purchased this engine 4 months ago on e-bay and everything was working fine, lights, smoke and sound. This is the TMCC engine but I am running conventional as I do not have a control system on the layout. Everything but the lighting is still working. It started acting intermittent on then off sometimes then the headlight was only very dim and now nothing, no headlight, markers , firebox or tender back up light. I have checked the bulbs and LED's and all are ok. I e-mailed with a reputable train repair company and the suggested that the mother board or the radio board may be the problem. Is there anyone who can test boards or do I just need to replace. Any suggestion or help is greatly appreciated as I am new to this hobby. Thank you.