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Install Guides by Loco Class General - Fitting Decoders General - Fitting Kit CT Elektronic Reference

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Bachmann OO Ivatt 2MT Class 2-6-2 Tank with DCC Sound (Next18 MX658 decoder), crew and firebox glow

Kit: Zimo MX658N18 with PowerCube9 (1.3W version of the SugarCube) in boiler; SMD firebox glow LED; weathered crew

NB Should really use a standard SugarCube9 speaker instead of the PowerCube, as the impedence matches the decoder better - have to keep the volume a little lower if using the PowerCube to avoid overworking the decoder.

Fresh out of the box, the marvellous Bachmann Ivatt 2MT Tank - everything we'd expect from a modern Bachmann model...

Popping the body off reveals a plastic hood under which is the Next18 DCC decoder socket, essentially inside the cab.

Here's the kit we intend to install... MX658N18 sound decoder, PowerCube9 and nano firebox glow

The speaker slots nicely into the provided space in the boiler (fabulous design Bachmann - thank-you!). Secure the speaker with a bit of double-sided sticky tape, or Black Tack

The cab interior detail pops out easily, and we drill a hole just large enough for the nano firebox glow LED to poke through, securing the wires behind.

Add a resistor to protect the LED

Purple wires soldered to the provided pads for speaker. Firebox glow wires soldered to the +VE and FWD pads on the board - we are using the FWD output for the firebox glow, as there is no pad provided for FA2/AUX3 - pity, but it doesn't matter as we are not going to be adding any directional lighting. Some simple CV changes required to ensure that the FWD output is non-directional and gives the random flicker lighting effect.

Route the purple speaker wires forward in the provided channeling and solder up to the speaker. Cab detailing goes back on to secure everything in place and MX658 decoder is plugged in.

Prepare the men for work (by chopping off their legs!) and choose positions carefully to locate them - test with the body of the loco otherwise their arms may snag going back on!

Add some lump coal to the bunker, reassemble, and we're done - very straight-forward installation!

Disclaimer

Please note that these guides are provided as useful resources for you, as-is. YouChoos cannot be held responsible for errors in the information, or for any damage caused to your models or equipment if you choose to follow any of the steps detailed here.


A bit of YouChoos poster art for your enjoyment!