Digitrainsound J 94 Austerity MultiDrive Version 1.0 By Paul Chetter.
Thank you for choosing Digitrains; we try harder to provide you with the very best sound projects
available. Please spend a few moments to read these notes which have been produced so that you may obtain the maximum satisfaction from your new sound scheme.
The sounds should work perfectly when the decoder is fitted correctly. Individual locos may require
some fine tuning that you can achieve with your DCC controller.
What is Multi-Drive?
This is a system developed by Paul Chetter as described in his articles in Hornby Magazine, Issues
39 to 41. The sound recordings were made from an operating J94 locomotive for authenticity.
The sounds have been programmed in such a way that you, the user, may change the way that the
sounds respond to your driving style or needs. This avoids the need for reprogramming and all the
additional costs that would imply.
Operating Your ZIMO Sound Decoder.
As supplied, your new decoder will work in a ‘light engine’ configuration, but you will be able to switch
between the available sounds using your DCC controller using the straightforward instructions below.
This project utilises Zimo’s ability to switch between the sounds of a heavy train load or sounds of a light engine. With a little more input from you in setting up, there is a third variation available offering you even more choice. These are all fully configured within the project, waiting for you to make your selection. You can revert back at any time. This gives you three times the fun at no extra cost!
All the CVs have been optimised for the Hornby J94 Austerity 0-6-0, but should work equally well with other 2 cylinder shunting (switching) locos. You may need to make minor adjustments to perfect it for your individual model.
There are 17 Functions, most of which have an individual sound attached. Some will perform a
physical function (like turning on the lamps, if fitted), and some will do both (depending on equipment
installed). Please study the list below.
Some of the sounds have a finite length and will play from start to finish when selected. Other sounds
will ‘loop’ until switched off, whilst others will vary in length, depending on how you operate the F keys
on your DCC controller. I’ll leave you with the pleasure of finding out which is which.
In any of the driving sound sets, increasing the speed step by 1 will produce an acceleration sound for
a few seconds. If you wish continuous acceleration, ease the throttle setting upwards rather than 0-
128 in one jump!
Similarly, in each sound set, a reduction of 1 speed step will stop the exhaust beats and the loco will
‘coast’ (or drift) for a few seconds before resuming exhaust beats. Continuous drifting can be
simulated by easing the throttle settings down, one step at a time.
All sounds may be modified (including changing or removing them) individually, and the volume levels
of each one may also be varied to your own needs. For this, and much more information on your
decoder’s outstanding abilities, please download the latest Decoder Manual from:
You can get advice in English by joining, for free: [email protected]
The Sound Sets
There are three sound sets loaded on your decoder:
Set 1 Light Engine. At very slow speeds, this set will simulate a very lightly stressed loco. This
becomes more aggressive with acceleration, and as speed increases.
Set 2 Heavy Loaded. This is the one to use if you have a heavy train on the hook.
Set 3 This is an alternate arrangement, using some different exhaust beats.
Special Zimo Function on F5.
As supplied it is possible to toggle between Set 1 and Set 2 (change from one to the other and back
again) and this may be done even whilst the loco is moving, with no loss of sound. This is useful to
vary the sound of the exhaust beats. But it really comes into its own when you run light loco up to a
train, couple up and chug away with the heavy sounds.
All you need to do to make this happen is to press F5 on your DCC controller, and press again to
change back.
You may also toggle between Sets 2 and 3, but you need to prepare the loco beforehand. Use either
operations mode or service mode programming to call up CV265. This will allow you to change the
‘lead’ sound set. Normally this should be CV=1, but CV=2 will enable you to toggle between sets 2
and 3.
Caution:
If you set CV=3, sound set 3 will work fine, but if you operate F5 you will switch to a blank set. Driving
sounds will stop, and unfortunately toggling back again will not restore your sounds.
Don’t panic, simply reset CV265 to either 1 or 2 and it will all work as before.
Function Keys List
F0 - Lights
F1 - Sound on/sound off
F2 – Long Whistle (Hold key to extend duration)
F3 – Toot Whistle
F4 – Short Whistle
F5 – Light/heavy selection
F6 – Coal shovelling
F7 – Injector (This sound is also a random sound when standing)
F8 – Blower (This sound is also a random sound when standing)
F9 – Flange
F10 – Safety valves lifted. (This sound is also a random sound when standing)
F11 – Hand Brake
F12 - Water filling
F13 – Brake squeal
F14 – Buffering up
F15 – Cylinder Drain Cocks Open
F16 - Coupling sound
F17 – Toot Toot
F18 - No sound assigned
F19 - No sound assigned
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