Firstly though, the good news. The IR detector units you show with link near the top of this thread are fully compatible with the Taigen battle system. As you look at a unit, with the three legs downwards and the black ball shape uppermost, the right hand leg is next to the fatter plastic pin on the base of the apple. I've connected them both ways but only one way works but, as you suggested, no damage is done if reversed. I've tried them on several of my Taigen IR tanks with 100% success.
Now the bad news question. On the T34/76 l have finished building the IR detection doesn't work, regardless of the detector l plug in. I've checked the continuity between each of the 3 turret plug holes and their corresponding MFU pins and all is good, and so far as l can see, all other leads are connected and all other functions are working. The T34/85 donor worked fine before l started chopping!
Any thoughts please. It's otherwise fully finished
