Tmax dual battery monitor fault

I recently had a wiring meltdown on the monitor wiring, when reconnecting my tmax due to a faulty relay. After rewiring and reconnecting, the 2nd battery led's on the monitor aren't working, and I remember seeing in a post someone had put a circuit diagram for the monitor which I think showed an internal fuse. I haven't had time to take mine apart yet, so wondering if anyone else has had this problem or has seen that post. I've tried looking,but haven't seen it yet.
Cheers

Probably a post by @gstuart you are looking for, I do hope he is well, haven’t seen him post recently!

Cheers Freelance. I'll check it out.