It's possible to use a drop in decoder in the new AZL-61011, SD75M and similar models, delivered in 2014.
I already had some TCS Z2 decoders in spare, so I want to use them instead.
I could not find any instructions on the net how to modify the new PCB, so I did some Research myself. Here you can see the result and there may be some info you can use, if you want to install a Z2 decoder with the new PCB in the engine.
There are 6 pads, numbered from 1 to 6 that shall be Connected to the decoder, With the following configuration:
- Motor, Orange color
- Motor, Grey
- Track, Red
- Track, Black
- Rear Light, White
- Front Light, Yellow
Blue wire can be cut(not used).
The PCB topside must be cut in 4 Places, showing in one of the images. I used a Dremel to cut the copper.