Piaggio NTT 50 Year of manufacture 96 – Light problems and diode defective

Hello in the round I urgently need your advice and say in advance a nice thanks to those who want/can help me,…. I have the following questions, I first tell the (I hope short) history. Two days ago I drove with my Piaggio Ntt and wanted to turn on the light. The switch on the left goes from the very top (off) to the middle position (weak light) to the very bottom (something brighter light). Now I had the problem that the light went in the middle position, but ga Unfortunately, I don’t know what the light is now, whether dipped-beam and main-beam or stand and dipped-beam. Unfortunately, I am not in possession of the manual. I removed the grill at the front,… and went to various plugs to check if something has loosened up. Unfortunately, I lost part of a diode of the male,… the plug, (see picture). I don’t have a schematic from the Or Iginal Piaggio NTT found on the net, but according to the internet the Typhon 50 is identical, and there it would be a diode, switched transistor, so it is on the schematic (see picture). What for now tells me nothing. I was now in 2 scooter shops, which could not help me any more. Only so much that the diode is no longer produced. Great,… One of them an authorized dealer for Piaggio`s only on the edge. On the phone they wanted to give me no information as a private customer, i Piaggio direct…. unfortunately. My questions would be now… 1. Did the diode have something to do with the defect in the light, or was it already another problem before and the diode came to this (because it was broken off)? 2. What is this diode / or switched transistor? 3. Where do you get the diode / switched transistor from, or can you take something else for it, at Conrad for example, because with Ebay it is not possible to get it? 4. Is the circuit diagram of the Typhon50 really identical ch, or maybe one of the NTT50 year 96? I would be happy if one/r has an operating manual,… possibly as PDF. A photo shows the cables that are now connected without transistor or diode….. the red/black and green/black Only briefly the data: Piaggio NTT 50, year 1996 should be still questions there please report briefly,… So I would be very happy if someone could help me, because now I am at the end with my Latin. Dear thanks mecweb Link from the schematic: Schematic Figure 2 shows the current situation without diode,…I don’t think it works in the current situation of the oil level sensor.