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traction motors is dissipated as heat by
the
resistor grid.
These
resistor arrays get quite hot and
require cooling. When dynamic brakes are turned on in the
Quantum
equipped diesel locomotive,
the diesel motor sound drops to notch 1 and the
Dynamic Brake
cooling fan sounds come on
.
Since Dynamic Brakes are relatively ineffective at low speeds
,
the Dynamic brakes will shut off
automatically below 8 smph
.
DCC and QARC Only.
Horn:
The Quantum System uses authentic locomotive sounds whenever possible
.
All Quantum
horns are engineered by our sound experts to give you the most authentic effects. If you blow the
horn briefly, you will produce a
realistic
short
horn
sound or
"hoot".
Bell:
Diesels and Electric locomotives
,
as well as larger steam engines, usually have
pneumatically operated mechanical bells. Small steam engines often have hand-pulled bells.
During turn-on in neutral
,
hear the pneumatic clapper gain greater throw with each stroke until it
finally sticks the bell. During shut down in neutral, you will hear the bell
fade
out along with the
short air release sound associated with turning this appliance off.
Doppler Run-by:
The
engine sounds get louder as the train approaches, then immediately drop to
a much lower pitch and lower volume as the train passes by.
With
a little practice you can change
the pitch exactly when and where you want.
Doppler
shift is based on the speed of the engine, so
the sounds change more dramatically when the engine is running faster. After the Doppler shift
has occurred and the horn is no longer being blown, the bell shuts off automatically and
locomotive sounds return to normal.
Coupler:
To give you the most authentic coupler sounds
,
OSI
has
identified three distinct types of
coupler activity
.
The first
is
when the coupler is armed where you will hear the clanking sound of
the coupler lift bar and coupler pin raising
.
The next is the coupler opening, with the hiss of the air-
lines parting. The third is when the locomotive couples up to its load of cars, and you hear
the
crash as all the cars bunch together from the impact.
DCC and QARC only.
Flanges:
When a train enters a curve
,
the flanges on the wheels ride up on the
inside
of the rail
and squeal. Recreate this squealing effect by pressing and releasing the Brake Squeal/Flanges
button quickly and repeatedly as necessary.
DCC and QARC only.
Special Operation and Troubleshooting
For a full description, see
the
Troubleshooting section in the
Quantum DCC
Reference
Manual
(Version 3) at www.walthers.com
.
With
some command stations, using the horn button
to
activate the horn, and, while this button is
held down, activating the F6
Doppler Key
,
will cause
the
horn to shut off instead of causing a
Doppler shift effect.
We
have
experienced
intermittent and independent
horn
signal interruption
with
some
DCC
command stations, causing unexpected
Doppler
shifts.
If this
happens frequently,
you
may
want
to
disable the
horn Triggered Doppler
(CV 51.2).
Switch Operation with Magnetic Wand (Analog and DCC)
•
The
locomotive
is equipped
with
a special switch
located directly under the plastic
diesel
roof that
can
be
activated
by the Magnetic Wand
(enclosed)
without having to
disassemble the locomotive.
The
switch
can
be
used
to
change the volume of your
sound system or
to
reset the engine to factory defaults.
Manual
Volume Adjustment
(Analog and
DCC)
•
Locate the
switch
relay
area
on
the locomotive's
roof
as
shown in the
Diesel
Model
Specifications
sheet that
was
included
with your model.
•
Power up
engine
and leave in Neutral. Make
sure
bell is not
on.
•
Place the
enclosed
magnetic wand over this switch area on the locomotive
'
s
44
roof
perpendicular to the track
and
wait
as
you hear the volume
increase or decrease in
incremental amounts as the horn
hoots
about every second
.
Move the wand
away
and
again
place it over
the switch area
to change the direction
(louder
or
softer) of
the
volume change
.
Remove
the
wand when you reach the desired volume level.
Note:
Volume can
also
be
adjusted
digitally using the programming methods described in
the
programming
sections
of this manual.
Resetting your
Engine to Factory Default
Values with Magnetic Wand (Analog and DCC)
In case your
engine's
sound
and control system
misbehaves
and
turning the power
off
for 15
seconds
does not return it to normal operation, you
can
reset your locomotive to original factory
values.
•
Locate the
switch
relay
area as
shown
in the
Diesel Model Specifications
sheet.
•
Turn
off
the power.
•
Place
the
Magnetic Wand
over
the
switch area and apply
power
and
leave the wand
there
until you
hear
the word
"reset".
Your
engine
is now reset. Remove the wand
before the manual volume
adjustment
is
activated.
"
The
wand does not
n
ee
dt
o
t
o
u
ch
th
e
body.
It
can
be
held
a
reasonable
d
istance
from
th
e
roof area
toprev
ent
possibly
marring
the painted
surface.
