You can pick any DCC decoder as long as it is 3 or 4 function (to have working marker lights) and where the plug is separate to the decoder itself.
If purchasing through a retailer, you will also require a speaker and bafflebox, ESU product code 50330, although when purchasing through Wuiske Models directly, we offer this already soldered and included with the 93490 sound chip.
If you want DCC but don’t want the sound, one of the available chips is a LokPilot Standard – ESU Product Code 53611 and available from any retailer stocking ESU products and Wuiske Models directly. The steps for installing a LokPilot Standard are almost identical, sans the steps for the speaker (obviously).
If you purchase your LokSound Select and your speaker and bafflebox separately, you will need to solder the two brown wires from the decoder to the speaker. To do this, you will need to remove the speaker from its baffle box and then replace it after the wires are attached.
As space is limited within QR locomotives due to their size, it is best to remove one of the mounting points on the bafflebox. Using sidecutters, remove the mounting point on the end without the wires. There is no need to remove the mounting point on the end where the speaker wires come out.
Prepare the area in the locomotive shell where the speaker will be mounted by folding down the two brass tabs that mount the brass mesh over the radiator fan with the aid of a flathead screwdriver. Care must be taken to ensure you do not pop out the brass mesh on the topside.
To mount the speaker and chip, the simplest way is some “Sticky Dots” by Sellotape. Our pack of 64 dots was purchased from the local newsagent for the princely sum of $3.50. You can also use doublesided tape, but you will want to find one that has good stickability (some doublesided tapes are very weak).
Peel the fronting paper off carefully – the sticky dots are very sticky on both sides, but they may at times need to be persuaded to leave the security of the fronting paper. Remember they are sensitive little petals so soft, coaxing words might be of assistance here.
Try to push it in as far as you can against the lights PCB and once happy with the positioning, press the speaker and bafflebox into place firmly. Try to avoid pressing on the actual speaker – this is where that extra mounting tab comes in handy as it gives you something to work with.
Place the decoder butting up tight against the bafflebox. With the LokSound Select decoder you will notice it almost wedges itself between the bafflebox and the chassis screw mounting point. The sticky dot is really only there to prevent it from flapping around.
You will notice on the PCB, there is a white border around the 8 pin socket. One corner is marked a bit heavier – this denotes the positioning of pin 1 on the standard 8 pin plug. Pin 1 is located on the leading end, left hand side of the locomotive.
And now your decoder is installed. Just need to put it all back together. There is a lot of wiring there, and you must take care to not catch any wires in between the shell and the metal chassis, or in the way of the chassis screw mounting points as you may crimp the wires, break the sheathing and cause shorts.
Sometimes turning the locomotive upside down to get gravity to assist might help. At each point check as much as you can that you haven’t crimped any wires. Under no circumstances should fitting the shell back on offer great resistance. It should slide on easily – if it requires pushing you’ve probably got wires wedged where they shouldn’t be.
It should just come together, and you can use the overflow pipe which hangs down from the underframe on the left hand side and the fuel gauge on the fuel tank to line up your positioning of the shell to the chassis. The overflow pipe should sit directly in front of the fuel gauge.
Now all that is left is to program your locomotive address.
The locomotives are factory assigned an address of “03”.
Marker lights are Function 11 and Dynamic Brakes are Function 7. Check your DCC Control system manual if you’re unsure how to select these.