QUOTE (34C @ 12 Feb 2018, 09:46)
<{POST_SNAPBACK}>This also makes decoder installation something of a pig: completely unnecessarily when such light weight tackle could be placed in the ample cuboid bunker space, where the designer would have to make a real pig's breakfast of the layout to make a difficult DCC decoder installation.
Actually its a very simple loco to fit a decoder to provided you have the right decoder. Ignore Hornbys instruction to remove a weight as the M7 obviously needs as much weight as it can get in the right places and either
1.fit a suitably small enough direct fit decoder, I have two with TCS DP2X-UKs fitted; these have to fitted the wrong way round in order to get the body back on but that is not an issue as there are no lights and a quick change of CV29 corrects the loco running the wrong way, or
2.remove the 8 pin socket and all of Hornbys wiring bar the solitary wire leading from the pick ups. Hard wire a suitable decoder (I have a TCS M1 in another M7) with the motor wires soldered direct to the motor, one track lead to the tag on the chassis block and the other to the wire referred to early with heat shrink over the joint.