I decided to have a digital decoder with sound installed
into my Desiro. I decided to use the ESU LokSound Micro v3.5. I purchased it in a local store, where the stuff also loaded the Desiro sounds into the device memory - this can be only done with a special HW LokSound programmer, while the large number of sounds for lot of different engines can be downloaded from www.esu.eu website for free.Installation 1:
The Tillig TT Desiro has 2 cars, in each of them is a PCB. In the first car, where the electric motor is, there is also a 6 pin connector for the DCC decoder. First I wanted to make use of that connector, but suddenly there is insufficient space in the car, with the connector for the decoder and speaker. Also the cables are not long enough to simply put everything into the second car and use the connector in the first car. So, I cut the connector from the decoder and soldered longer cables. The decoder worked connected this way, but additional cables which made it's way through the middle section, made themselves also a too big obstacle for a movement in curves and turnouts.
Installation 2:
So, I was puzzled myself, whether on the second PCB in the second car (without a connector) aren't the same junctions as on the first PCB, and surprisingly they are. I cut the cables from the connector again and soldered them exactly into positions on the second PCB, which I checked with a multimeter before cutting the cables. Now there are no additional cables going through middle moveable section and all decoder cables, decoder itself and speaker fit well into the second car under the inner floor. Well, the speaker was little bigger then it would fit, so a little sanding with a diamond wheel was necessary on edges and on the lower side - the plastic frame doesn't necessarily need to be such big around the speaker.
Some photos are attached from the installation 1 and 2, as well as a HD video (click Watch in HD below the video frame) can be watched on youtube with the Desiro run with sound.
Low res video (below):
