Maybe check the TCS website - they have bunch of installed covered. But with older models decoder installs aren't always simple or easy.
Looked everywhere; no decoder company has a tutorial. And those of you going to follow this one, some things to point out:
1)You don't need to chop off the entire rear "wing" of the LH frame -- unless you use a humongous decoder.I removed only enough of it from the front to get a DZ126 in. It left almost 1/4" of the wing end rear. Weight counts in N. As for grinding out part of the RH frame, depends on your decoder. I think a Lenz Mini-silver can fit in the missing wing space without any work on the RH frame.
2) There is room to run ONE decoder wire on EACH side of the frame from front to back by nestling them in the "ledge" setback in the frame to let it clear the windows. You could run the RH track pickup wire and one LED wire there, with the other LED wire running down the top gap between the frames. You need to cut a wire channel down the side of each frame to allow the wire to get from the decoder to under the windows.
3) Rather than "floating" the new LED, I think epoxying a new one to a piece of styrene cut to match the old circuit board dimensions, then sticking the styrene board in the old CB slot would be more stable.
4) If you're a klutz with a soldering iron, don't try soldering the wires to the brush caps while they're in the motor if you think you'll melt the plastic motor frame. Remove the caps (carefully) and solder the wires on, then reinstall the brushes and caps.
And hey ... I reserve the right to call out a bad tutorial as bad. If you've done multiple hardwire jobs already, this probably is adequate. But for somebody doing their first one, it sucks.
