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

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Bachmann OO LMS Johnson 1P

Bachmann 1P with Zimo Sound and Stay-Alive

Kit: MX658N18; LifeLink + 3x 470uF Flat Tantalums

Another wonderful model from Bachmann, the 1P is well designed, with DCC Sound in mind. It comes with firebox glow (2 LEDs) and a SugarCube style speaker on board already, so if you just want simple, then the MX658N18 sound decoder is a piece of cake to pop in.

3 screws and the body pops off, take out the Next18 blanking plate and put the MX658 in, and you're done!

Just being nosey, we have a peek at the speaker box, which is securely screwed on underneath. This also reveals a line of solder pads, which Bachmann have very thoughtfully provided for us to add stay-alive and even extra lighting if we wanted it. We'll just go with a small stay-alive.

Just because we are super nosey, we disassemble the whole loco to see what other space there is, which reveals a little room in the bunker - could be used for more stay-alive potentially. We don't bother with this installation, but it is just interesting to poke around!

Instead, we add the required wires for stay-alive (+VE and GROUND) to the provided pads on the model's PCB.

The stay-alive kit is connected... 3x Flat 470uF Tantalums and the LifeLink PCB, then this is connected to the blue and grey wires that we added previously.

Wrap the stay-alive in Kapton tape and place losely above the decoder. The fit is quite comfortable in the curve of the boiler, and this improves running enough to make it worthwhile.

The model reassembled and working very nicely.

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.


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