Help with how to repair Fisher Price talking James

[Super]

I have had to repair wires in other tenders before. I have had them look like they were connected to the positive or negative terminals but they weren't actually making contact. The a wire and its solder had jarred loose. It could also be the wiring from each battery to the next. I don't have a James around to look but I am guessing that the 3 batteries are connected in series for 4.5 volts so if one connection to the next is broken there would be no power even if all the wires are. Its strange that it is completely dead for a supposedly new unit so I would have to assume that there is a missed connection somewhere. I am sure are other more experienced members can help with their experiences to. If you have it apart is it possible for you to post some pictures?