Hornby British Railways Class 73 Electro Diesel

Scale:
HO Scale


This installation uses the following decoder:

MC4



TCS MC4P-MH Decoder Installation for HO-Scale Hornby British Railways class 73 electro diesel. It was performed by Robert Lewis of Tilehust, Reading, United Kingdom.

To remove the body, gently pry apart to unclip the body from the chassis in the 8 positions marked with arrows. Once un-clipped, the body will lift straight up and off.
To remove the body, gently pry apart to unclip the body from the chassis in the 8 positions marked with arrows. Once un-clipped, the body will lift straight up and off.
The blanking plug is easy to remove, just by lifting straight up. Fit the TCS MC4P-MH decoder with the orange wire to the pin marked 1.
The blanking plug is easy to remove, just by lifting straight up. Fit the TCS MC4P-MH decoder with the orange wire to the pin marked 1.
Test the installation and programme on your test track and then refit the body.
Test the installation and programme on your test track and then refit the body.

Important Soldering Tip

Please do not use any flux either liquid or paste on the mother board. Over time, the acidic properties of liquid or paste flux will begin eating away at the fiberglass PCB and will damage it. Use only Rosin-core solder or no-clean flux approved for electronics use.

TCS recommends the use of Kester "44" Sn63 Pb37, .015" diameter Rosin-core solder. Kester part number 24-6337-0007.

You can order this solder from the following retailers:
Digikey - PN:KE1110-ND
Techni-Tool - PN:488SO6775

Other solder tips

When stripping wire, only strip a tiny little bit of the insulation. Strip no more than a 1/32 of an inch. When the wire gets tinned with solder, the insulation will shrink back more. Try to not expose any more wire than half the length of the solder pad at most. In no case should solder or exposed wire wire ever be outside the boundary of the the solder pad you are attaching a wire to.
Click here for important information on properly Stripping and Tinning wire