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MTH 392E Operating Manual
TINPLA
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QUICK START - BASIC OPERATION
The MTH 392E contains state-of-the art electronics with several built-in automatic features
for incredibly realistic operation. Despite these advanced features, the 392E is easy to operate
with any compatible standard AC transformer (see the compatibility chart on page 29). All
models are equipped with an operating smoke system that
should be primed with smoke fluid
before operating
. Adding 15 - 20 drops of fluid
through the smoke stack should be sufficient.
If you
choose to not prime the units with fluid
,
turn the
smoke unit switch located inside the engine’s cab to
the OFF position
. (See Figure 1) This will prevent
any damage from occurring to the smoke unit when
running the engine without a primed smoke unit. For
more information see the section on page 4 on Smoke
Unit operation.
The 392E model is controlled by a
ProtoSound® DCRU® electronic
reverse unit. The reverse unit operates
in the same manner that all reverse
units function by using forward, neutral and reverse
states that are entered each time the throttle is turned
on and off or by using the transformer direction switch (if so equipped).
The reverse unit is designed to ignore dirty
track, dead spots on switches or minor short
circuits without disrupting the engine
operation, even at slow, prototypical speeds.
Once the engine is on the track, the throttle on
the transformer can be advanced. You will see
that only the engines lights come on and that
two dings from the sound system will chime
followed by the steam compressor pump sounds. The engine does not run. This is known as
the RESET state and is explained in more detail beginning on Page 5. The ProtoSound®
DCRU® will not power the motor until the throttle is turned OFF and then ON again. At this
point, the engine will now function just like any other electronic or mechanical E-unit.
RESET
Neutral
Reverse
Neutral
Forward
Figure 2: ProtoSound® DCRU® Cycle Phases
Figure 1: Smoke Unit Switch Location
Smoke Unit Switch
