Rail King NYC Dreyfuss 4-6-4 User manual

RK
AIL ING
By MTH Electric Trains
®
NYC Dreyfuss 4-6-4
STREAMLINED STEAM ENGINE
OPERATING INSTRUCTIONS
Thank you for purchasing the RailKing Die-Cast NYC Dreyfuss 4-6-4 steam engine. The
engine’s die-cast body and tender are traditionally sized for operation on any O-27 layout.
The engine is compatible with any standard AC transformer, (see page 25 for a complete
list of compatible transformers and wiring instructions), and is completely compatible with
most 3-rail locomotives, rolling stock and accessories.
The locomotive and tender are equipped with either an electronic whistle or the
ProtoSound Digital Sound and Train Control System which contains several deluxe
featuresthataresimpleandfuntooperate. Eachfeatureisdescribed amongthefollowing
pageswhichshouldbereadbeforetheengine isoperated. Forthoseofyouwho can’twait
to get started, the Quick Start Operating Instructions found on Page 3 should be read so
that you understand the basics of the operating system. Please note that some features
areonly found intheProtoSoundequippedenginesandare marked assuch. Featuresnot
marked as ProtoSound are available in both versions.

NYC Dreyfuss Operating Manual 2
Table Of Contents
QUICK START - BASIC OPERATION (All Models) 3
SMOKE UNIT OPERATION 4
PROTOSOUNDS™ OPERATING INSTRUCTIONS 5
DCRU™ REVERSE UNIT OPERATION (All Models) 6
WHISTLE OPERATION 7
BELL OPERATION 7
SQUEAKING BRAKE SOUNDS 8
ACTIVATING AND TRIGGERING THE SQUEAKING BRAKE SOUNDS 8
TIPS ON USING THE SQUEAKING BRAKE FEATURE 9
PASSENGER STATION PROTO-EFFECTS™ (PFA) 9
ACTIVATING AND TRIGGERING PASSENGER STATION SOUNDS 10
TIPS ON USING THE FYS FEATURES 12
OPTIONAL PROTO-COUPLER OPERATION 13
SELF-RECHARGING BATTERY BACKUP SYSTEM 13
REPLACING THE PROTOSOUND™ BATTERY 14
PROTOSOUND™ VOLUME ADJUSTMENT 14
USING “RESET" TO PROGRAM PROTOSOUNDS™ 15
ENTERING RESET OPTIONS 15
SETTING THE ENGINE CHUFFING VOLUME 15
PROGRAMMING FOR A SEPARATE BELL BUTTON CONTROLLER 16
PROGRAMMING FOR WHISTLE IN NEUTRAL OPERATION 16
PROGRAMMING FOR OPTIONAL PROTOCOUPLER OPERATION 17
PROGRAMMING FOR SQUEAKING BRAKES AND FYS OPERATION 17
ACTIVATING REMOTE LOCK-OUT CONTROL 18
RESETTING ALL PROTOSOUND OPTIONS TO FACTORY DEFAULTS 18
REVERSE UNIT LOCK-OUT OPERATION 19
LOCKING THE ENGINE INTO FORWARD OR REVERSE 19
UNLOCKING THE ENGINE 19
LOCKING THE ENGINE INTO NEUTRAL 19
OIL & LUBRICATION INSTRUCTIONS 20
TRACTION TIRE REPLACEMENT INSTRUCTIONS 21
BOILER LIGHT BULB & SMOKE UNIT REMOVAL & REPLACEMENT 21
TROUBLE SHOOTING PROTOSOUND™ PROBLEMS 22
TRANSFORMER COMPATIBILITY AND WIRING CHART 25
PROTOSOUND RESET FEATURE CHART 26
ADJUSTING THE GAP BETWEEN LOCO & TENDER 26
SERVICE AND WARRANTY INFORMATION 27
HOW TO GET SERVICE 27
LIMITED ONE YEAR WARRANTY 27

3NYC Dreyfuss Operating Manual
QUICK START - BASIC OPERATION
The RailKing NYC Dreyfuss contains state-of-the-art electronics with several built-in
automatic features for incredibly realistic operation. Despite these advanced features, the
Dreyfuss is easy to operate with any compatible standard AC transformer. (See the
compatiblity chart on page 25) All models are equipped with an operating smoke system
that must be primed with smoke fluid before operating. Adding 15 - 20 drops of fluid
through the smoke stack should be sufficient. If you choose not to prime the unit with
fluid, turn the smoke unit switch located under the locomotive trailing truck to the
OFFposition(seeFigure2onpage4). Thiswillpreventanydamagefromoccurringtothe
smokeunitwhenrunningtheenginewithoutaprimedsmokeunit.Seethesectiononpage4
on Smoke Unit operation for more information.
All Dreyfuss models are controlled by a 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 by turning the transformer throttle on and off or by pressing
the transformer direction switch (if so equipped).
The reverse unit is designed to ignore dirty
track,deadspotsonswitchesorminorshort
circuitswithoutdisruptingengineoperation,
even at slow, prototypical speeds. Before
the engine can be operated, however, the
reverse unit plug that extends out of the
tender must be inserted into the receptacle
at the back of the boiler cab as seen in
Figure 1. Once the plug is inserted, the
throttle on the transformer can be
advanced. You will see that only the
engine’s lights will come on and on
ProtoSound equipped engines, two dings
from the sound system will chime as the
steam compressor pumps begin. This is
known as the RESET state and is explained in more detail on Page 6. The DCRU will not
powerthe motoruntilthethrottleis turnedOFFandthenONagain. At thispoint,theengine
willnowfunction like any otherelectronicor mechanical E-Unit. The steamenginechuffing
will begin as the engine moves and the whistle can be blown just as any normal whistle is
activated by pressing the whistle button on your transformer. See the sections later in this
guidebeginningonPage7formoreinformationonactivatingthewhistleandbellsounds.
Finally, we recommend lubricating your engine before operating it to prevent any
squeaking. See the lubrication directions on Page 20.
PlugTenderPlugInto
BoilerSocketAtBackOfCab
Figure 1: Plugging In The Tender Harness

NYC Dreyfuss Operating Manual 4
SMOKE UNIT OPERATION
The Dreyfuss contains a self-powered smoke unit that outputs a steady stream of smoke
throughthesmokestack.TheON/OFFswitchlocatedundertherightsideofthelocomotive
cab must be in the ON position in order for the smoke unit to function. See Fig. 2.
Smoke Unit
On/Off Switch
Figure 2: Smoke Unit On/Off Switch
The smoke unit is essentially a small
heatingelement and wickwhichsoaks up
and then “cooks" a mineral oil-based fluid
that omits a harmless smoke. The smoke
is then forced out of the stack via a small
electric fan which runs at a constant
speed. However, the smoke intensity can
be varied by increasing the transformer
voltage setting. The higher the setting,
the more intense the smoke output.
Forbestresults, werecommend that youadd 15 - 20drops of Seuthe,LGB or LVTSfluid
before you run the engine. If you don’t
choose to add the fluid, then the smoke
unit switch should be turned off. Failure to
either add the fluid or turn the switch off could
lead to damage to the smoke unit heating
element and or wicking. Add the fluid through
thesmoke stackhole as indicated in Figure3.
Afteraddingthefluid,gentlyblowintothestack
toeliminate any airbubbles. Do not overfill the
unitas overfillingcancausethe fluidtoleakout
and coat the interior engine components.
When the smoke output begins to diminish
while running the engine, an additional 10-15
drops of smoke fluid should be added or the smoke unit switch should be turned off.
Figure 3: Adding Smoke Fluid
When storing the engine for long periods of time, you may want to add at least 15 drops of
fluid to keep the wick soaked with fluid and prevent it from drying out. After removing the
enginefrom storage,itisadvisabletoadd another25dropsoffluid,letting thewicksoakup
the fluid for 15 minutes prior to operation.
SMOKE UNIT MAINTENANCE
CAUTION: Operatingtheengine without smoke fluid andwiththesmoke unit switch inthe
ON position can damage your smoke unit wick, causing the wick to become hard,
blackened and unabsorbant around the heating element. When this occurs, it may be
difficult for the wick to soak up the smoke fluid resulting in poor or no smoke output. If that

5NYC Dreyfuss Operating Manual
occurs, we recommend that you inspect and/or replace the wick taking care to not run the
enginewithoutfluidinthefuture. Youcaninspectthewicktoseeifitneedsreplacementby
removing the smoke unit inspection cover as seen in Fig. 4. After removing the screws lift
the inspection plate away and inspect the wick. If the wick is darkly discolored and hard, it
should be replaced.
NOTE: Replacement bottles of smoke fluid,
such as LGB or LVTS Fluid are available at
most hobby shops. Replacement smoke unit
PROTOSOUNDS™ OPERATING INSTRUCTIONS
The MTH ProtoSound™ digital sound and train control system provides the operator with
unprecedented realistic operation on your model railroad. In addition to actual steam
CD-equivalent,16-bitdigitalsounds,yougetthefollowingfeatures,eachofwhichisfurther
described on the following pages. Every feature is easily and remotely controlled from any
compatible AC transformer equipped with a whistle button. See the chart on page 25 for a
list of compatible transformers.
Built-In DCRU Reverse Unit
Authentic Bell &Whistle
Enhanced Neutral Steam Sounds
Squeaking Brake Sounds
Passenger Station Proto-Effects™
Optional Remote ProtoCoupler
Self-Recharging Battery Back-Up System
Remotely Controlled Reverse Unit
Remotely Activated Lock-Out
Remotely Adjustable Steam Chuff
Volume
Upgradeable Microprocessor Options
Smoke Unit
Circuit Board
Mounting Screws
Smoke Unit Frame
Mounting Screws
Figure 4: Inspecting the smoke wick

NYC Dreyfuss Operating Manual 6
DCRU REVERSE UNIT OPERATION (All Models)
Asmentioned inthe BasicOperating section, the engine is controlled by a DCRUreverse
unitthat contains thestandard forward-neutral-reverse states found onmost reverse units.
However, as described earlier, when power is first applied to the track, the reverse unit
beginsinRESETorwhatseemslikeaneutralstate. Powermustbeinterruptedagaintoget
the locomotive to enter the forward state. It is this first RESET state that gives
ProtoSound™ its unique, remote controlled functions. The system will enter RESET
wheneverpowerto the trackisoff for three ormoreseconds. NEUTRAL will be referredto
as the state between Forward and Reverse.
ProtoSounds™ is equipped with a microprocessor, that, depending on the amount of
memory it is allotted, allows the user to utilize several remotely activated functions. In the
simplestterms,ProtoSounds™hasitsown“Computer"controllingthesefunctions. Infact,
thepower ofthismicroprocessoristhe sameasthatofa286 desktopcomputer! Inorderto
accessmanyoftheseremotelycontrolledfunctions,theusermustbeintheRESETstateto
do so. RESET is entered anytime power to the locomotive has been off for more than 3-5
seconds. When the engine first enters RESET, the microprocessor initiates a system
check to determine if the system, transformer and engine are operating correctly. This
takes approximately 2.2 seconds during which you will hear the engine’s air compressor
startup. InorderforProtoSoundstoproperlyinitiatethesystemcheck,donotadvancethe
transformer throttle past 10 volts when you first enter RESET, then wait for the steam
compressor pumps to begin before slowly turning the throttle to the off position and then
back on again to enter the Forward phase. If you enter RESET at too high a voltage,
interruptthe power too soon, ormove the throttletoo quickly to the offposition, the system
may reenter RESET (signaled by two dings of the bell). Should this happen, wait longer
before interrupting the power to enter the Forward phase.
ProtoSounds™ comes with several programmable functions including; remote steam
chuffing volume adjustment, separate bell button operation, remotely activated
Proto-Coupler, Whistle in neutral operation, enhanced neutral steam sounds, squealing
brakes and passenger station announcement sounds. Each of these features are
described in more detail later and all can be remotely activated from any compatible
standard AC transformer with a whistle button (See the chart on page 25). (Additional
features will be available at additional prices from MTH ProtoSound Electronics) You will
noticethatwheninRESET,yourenginewillnotrespondtothewhistlebuttonwithawhistle
blast or continuous bell ringing. In fact, when in RESET and the whistle button is
depressed,onlyonesinglebellchimewillbeheardeachtimethebuttonispressed. Thisis
because the computer is awaiting programming instructions from one of the many RESET
settings. If you don’t wish to configure ProtoSounds using any of the programmable
features, simply leave RESET at this time by interrupting the power to put the engine in
forward. AfteryouleaveRESET,yourenginewilloperatenormallyinallthedirectionstates
offorward,neutral and reverse. Remember,though,once power is turnedofffor more than
3seconds,thenexttimepowerisappliedtothetrack,yourenginewillbebackinRESET.

7NYC Dreyfuss Operating Manual
WHISTLE OPERATION
Your Dreyfuss engine is equipped with a digital recording of an actual steam engine
whistle. The whistle sound can be activated anytime the engine is in forward or reverse by
pressingthewhistlebuttononyourtransformer. Thewhistlewillcontinueto blowaslongas
the whistle button is depressed. The whistle will not function in Neutral or RESET. It can,
however, be configured to operate in Neutral by accessing and programming a RESET
option. See page 16 for information on whistle programming in the section entitled “Using
RESET To Program ProtoSounds" section of this manual.
BELL OPERATION
Your Dreyfuss engine is equipped with a digital recording of an actual steam engine bell.
The bell can be turned on or off when the engine is in Forward, Neutral or Reverse from
either of two procedures; using a bell activation button, like the Lionel® Railsounds™ No.
5906 Bell Button, or by pressing your transformer whistle button when your engine is in
neutral. The bell will never function continuously in RESET. Once the bell is turned on, it
willcontinue to ring whenthe engine is cycledinto forward, neutral orreverse until you turn
thebelloff by pressing the bellbuttonorby re-entering NEUTRAL andpressingthewhistle
button. In fact, because of ProtoSounds™ state-of-the-art design, the microprocessor
remembers its last command. Therefore, unless you turn the bell off before you quit
running your trains, the next time you run the engine, the bell will come on. No matter
whether you come back an hour later or a year later, the bell will begin chiming once the
engine enters one of the three directional states.
TO TURN THE BELL ON OR OFF WITH A BELL BUTTON
To turn the bell on, turn on power to the track and cycle the engine into Forward, Neutral
or Reverse. Press the bell button to activate the bell sounds. To turn off the bell sounds,
pressthebellbuttonasecondtime. Ifthebellbuttondoesn’tactivatethebell,checkthatitis
correctly wired up to the track and transformer as indicated in Figure 8 on page 16.
TO TURN THE BELL ON OR OFF WITH A WHISTLE BUTTON
TurnontrackpowerandcycletheengineintotheNeutralstate. Turnthethrottleto8volts
orless(anyhighervoltagewillarmtheProtoCoupler)andpress thewhistlebutton. Thebell
should begin chiming. To turn the bell off, press the whistle button again. If you want to
keep the bell on while running the engine, simply interrupt the power with the transformer
throttleor the transformer directional switchand enter forwardor reverse. To turn the bell
off, reenter Neutral, setting the transformer voltage at eight volts or less and press the
whistle button. The bell should stop ringing. Remember if you don’t have a separate bell
button controller, you must be in Neutral to turn the bell on or off.
DCRU MANUAL LOCKOUT (Engines w/o ProtoSound)
Engines not equipped with ProtoSounds can be manually locked into Forward, Neutral or
Reverse by sliding the lockout switch to the “OFF” position after entering the desired
reverse unit state (See Figure 7 on page 14). To operate the engine in automatic mode
again,simply slidetheswitchbackto the“ON”position. NOTE: Oncetheunitis lockedout
and an hour or more of non-use has past, the reverse unit may cycle into any of the three
states. The on/off switch should be reset to the ON position to regain normal operation.

NYC Dreyfuss Operating Manual 8
SQUEAKING BRAKE SOUNDS
ProtoSounds is now equipped with operator controlled squeaking brake sounds. Once
activated, this easy to use feature plays the sound of squeaking brakes whenever the
transformerthrottleisreducedfromhighvoltagetolowvoltagesimulatingtheapplicationof
the brakes as you enter curves or slow down for crossings and passenger stations. The
sound itself is a stored record on the ProtoSounds software chip and will always play the
same brake sound for the same 3 second length each time you reduce the voltage from
high to low.
ACTIVATING AND TRIGGERING THE SQUEAKING BRAKE SOUNDS
Before the brake squeaking can be heard, ProtoSounds must be activated for the brake
sound feature. The brake sound feature can be activated in two ways.
Option 1: Ifyouareusingaseparatebellbuttoncontrollertoringyourbell(liketheLionel
Railsounds No.5906bellactivationbutton)youcanactivatethesquealingbrakefeature
by pressing and holding the bell button for three seconds or longer (it doesn’t matter if
you are in forward, neutral or reverse). You will hear the bell chiming turn on and if you
listencarefullyyoushouldhearanairreleasesound after three seconds have passed at
which time you can release the bell button. ( Note: because the air release sound is hard
to hear, we recommend that you count out a full three seconds before releasing the bell
button.) The bell will continue to chime, so if you want to turn off the bell ringing, simply
press and release the bell button a second time. If you were in neutral when you
triggered the brake feature, interrupt the transformer throttle to enter either forward or
reverse to allow the engine to begin running. (Note: the brake sound will only be
activated in the first direction state you enter after triggering the feature from the neutral
position. You cannot interrupt the power twice to enter another direction state and still
have the brake feature active.) Once your engine begins running, you can activate the
brake sounds by reducing the transformer voltage from a high setting to a low setting.
Option 2 Ifyoudonothaveaseparatebellbuttononyourlayout,youcanstillactivatethe
brake sound feature with your transformer whistle button. To activate the brake feature
turn on the transformer throttle and get your engine into the neutral position (not
RESET). Once in neutral, set the transformer throttle at 8 volts or less and press and
hold the whistle button for at least three seconds. You will hear the bell chiming turn on
andifyou listen carefully you shouldhearanair release sound afterthreesecondshave
passedatwhichtimeyoucan releasethewhistlebutton. (Note: because the air release
sound is hard to hear, we recommend that you count out a full three seconds before
releasingthewhistlebutton.) The bell willcontinuetochime, so if youwanttoturn off the
bell ringing, simply press and release the bell button a second time. Interrupt the
transformer throttle to enter either forward or reverse to allow the engine to begin
running. ( Note: thebrakesoundwillonlybeactivatedinthefirstdirectionstateyouenter
after triggering the feature from the neutral position. You cannot interrupt the power
twice to enter another direction state and still have the brake feature active.) Onceyour
engine begins running, you can activate the brake sounds by reducing the transformer
voltage from a high setting to a low setting.

9NYC Dreyfuss Operating Manual
Note: Once the brake feature is activated and the engine is running, it is possible that the
brakesounds may notoccur if the transformerthrottle setting isnot set highenoughbefore
throttling down. We recommend that after activating the brake feature, you run the engine
atno lessthan14voltsbeforethrottling downtoapproximately8voltsor lesstoensurethat
the brake sounds occur.
Note: Afteractivatingthebrakefeature, wheneveryoustoptheenginebyeitherturningthe
transformerthrottleofforbyenteringneutral,thebrakefeaturebecomesdisabledandmust
be reactivated using either of the two methods above.
Note: If the brake feature is activated using method number 1 from either forward or
reverse and you interrupt the throttle to enter neutral and leave the throttle on, you may
activate another ProtoSound feature in this engine; Passenger Station Announcement.
See the section later in this manual on Passenger Station Announcement.
TIPS ON USING THE SQUEAKING BRAKE FEATURE
Because the squeaking brake feature always plays for approximately 3 seconds, it is
possible that the brake sounds will play longer or shorter than what visually seems
prototypical. You will find that by practicing with the brake feature, you can quickly
determine how quickly to throttle down and what speeds and voltage settings give you the
most prototypical braking effect.
Typical users will find the feature to be a very realistic way to simulate the sound of an
engine slowing down for curves, crossings or coming to a stop at a station, side track or
switch yard. As mentioned above, you will find that initially your engine may continue to
play the brake sounds once your engine comes to a stop or that the sounds stop
prematurelybeforetheenginecomestoacompletehalt. Forexample,ifyousimplyrunthe
engine and turn the throttle off quickly, the brake sounds will likely continue playing even
thoughtheenginehas come to a completestop. Thisannoyingeffectcan be eliminated by
simply practicing with the brake feature. In no time, you will quickly learn how to “feather"
the throttle to keep the engine moving while the brake sounds play and then turning the
throttle off just as the sounds stop. Remember that once you stop the engine, you should
turn the throttle to the off position if you don’t want to activate the Freight Yard Sounds
feature described later in this manual.
PASSENGER STATION ANNOUNCEMENT (PFA)
ProtoSounds is now equipped with operator controlled passenger station
announcements, hereby known as PFA. This easy to use feature plays digitally
reproduced passenger station sounds whenever your engine stops at a train station on
your layout. No additional wires or modifications are needed on your layout to enjoy these
amazing sound effects. The sounds themselves are randomly generated and randomly
“shuffled” on the ProtoSounds software chip. This gives the system the ability to produce
different sounds in a different order each time the PFA feature is enabled. These different
sounds are heard each time you cycle the transformer throttle from on to off in the same
manner that you would cycle the throttle to enter the various states of forward, neutral and
reverse. The entire PFA sequence is designed to simulate the arrival, disembarking,
embarking,anddepartureofatrainenteringandleavingatrainstation.Thesoundsinclude
public address arrival and departure messages, passenger disembarking and embarking

NYC Dreyfuss Operating Manual 10
sounds, conductor voices and general train station ambient sounds. Each is described in
more detail in the following sections.
ACTIVATING AND TRIGGERING PASSENGER STATION ANNOUNCEMENTS
BeforePFAcanbeheardthefeaturemustbeactivatedfirst. Activationisaccomplishedby
holding down the bell button for three or more seconds as described in the Activating and
Triggering The Squeaking Brake Sounds section found earlier on page 8.
Oncethesquealingbrakefeatureisactivated,PFAwillbeplayed thenexttimetheengine
enters the neutral position. In order for PFA to begin, power must remain on once the
engineenterstheneutralposition. At thispointProtoSoundshastakenovercontrolofyour
engine and disabled the bell and whistle buttons from any further operator functions. In
addition, ProtoSounds has reconfigured the way the DCRU reverse unit functions by
disablingthe reverse unitstateduringoperationofthePFA feature. This forcestheengine
to leave your station in the same direction it arrived. The following operator controlled
“events” control PFA’s actions and sounds.
Event 1 (Forward) While the locomotive is running in forward (or reverse) PFA is activated
by the operator pushing and holding the bell button down for three or more seconds. The
locomotive bell begins chiming and can be left on or turned off without disabling PFA.
Event 2 (Neutral Before Reverse) The operator now interrupts the transformer throttle to
stop the engine and put it into neutral. If the throttle setting was at 14 volts or higher,
ProtoSounds will play the sound of squealing brakes as the engine comes to a stop.
I. Uponstoppingoftheengine,theoperatormustimmediatelyturnsthethrottlebackon
as the engine sits in neutral. If the bell was not turned off after activating PFA, it now
turns off automatically.
Note: Failuretoturnthethrottlebackonwithin3secondsofleavingtheforwardphase
will disable PFA and shutdown ProtoSounds. The next time you turn power back on
your engine will be in the RESET position. See page 6 for more information.
II. After entering neutral, ProtoSounds will immediately play an air release sound
followed approximately two seconds later by an arrival message. The arrival message
lists the train by name and the track it arrived on (the track is identified as either track 1
or track 2, alternating each time during the current operating session). Immediately
following the arrival message, the sound of the trains’ doors opening can be heard,
followed by a conductor’s warning to passengers to “watch your step.” At this point,
various randomly activated ambient train stations sounds will begin playing and
replaying as long as the engine sits in this neutral state (Neutral Before Reverse). The
soundsincludepassengerfootstepsastheydisembark,muffledvoices,baggagebeing
moved about, crashing sound, and whistling for a taxi. In addition, several highlight or
foreground sounds play including more conductor voices saying “watch your step”,
“have a nice day”, and “baggage to the right”.

11 NYC Dreyfuss Operating Manual
Event 3 (Reverse) The operator now interrupts the transformer throttle again to enter
thenext reverse unitphase; reverse. In an effortto enhance realism,PFA has disabled
the reverse phase so that it doesn’t power the motors and cause the engine to move
backward. Upon entering reverse, PFA confirms to the operator that it has entered the
reversestatebyimmediatelyplayingthehighlightsoundoftheconductor’svoicesaying
“baggage to the right.” This is followed by the continued ambient sounds of passenger
footsteps, muffled voices, baggage being moved about, crashing sound and whistling
for a taxi. These sounds and the conductor highlight are randomly repeated as long as
the system remains in the “reverse” state.
Event 4 (Neutral Before Forward) The operator now interrupts the transformer throttle
again to enter the next reverse unit phase; neutral before reverse. PFA confirms to the
operator that it has entered the neutral before forward phase by emmitting two quick air
releasesounds. Thisisfollowedbyapublicaddressmessagethatthetrainontrack1or
2 (whichever track number the arriving public address message stated) is now
boarding. Upon completion of the PA message, two conductor voice highlights
randomly begin playing. These conductor voices include “Welcome Aboard” and
“TicketsPlease”. Inadditiontothetwoconductorhighlights,thestationambientsounds
continue and still include passenger footsteps, muffled voices, baggage being moved
about, crashing sound and whistling for a taxi. The departing public address message
automatically repeats itself every 60 seconds with the highlights and station ambient
sounds randomly occurring as long as the system remains in the “neutral before
forward” phase.
Event 5. (Forward) Theoperatornowinterruptsthetransformer throttleagaintoenter
the next reverse unit phase; forward. PFA confirms to the operator that it has entered
the forward phase by playing a conductor voice yelling “All Aboard!” Immediately after
playing “all aboard”, the sound of the doors closing is heard. Within two seconds of the
doors closing, the locomotive bell begins chiming and the air compressor pumps start.
After approximately 7 chimes of the bell, the engine automatically begins moving out in
theforwardphasewiththebellcontinuingtoringanother7chimesbeforeautomatically
turningoff. Oncethebellturnsofftheoperatorregainscontrolofthetransformerwhistle
and bell buttons and can ring the bell or blow the whistle as usual.
Note: When entering the forward phase of PFA, it is important to set the transformer
throttle at a high enough setting that will allow the engine to begin moving once PFA
automatically activates the motors. Otherwise, the engine will just sit still until you
increase the throttle setting on the transformer.

NYC Dreyfuss Operating Manual 12
TIPS ON USING THE PFA FEATURES
PFAisauniquefeatureofProtoSoundsthatiscompletelycontrolledbytheoperator. You
decidehow,whenorifyouwanttoutilizethefeature. Byreviewingfollowingtipsyoushould
findsolutionsorsuggestionstothevariousoperatingscenariosyoumightencounterwhen
using PFA.
Tip #1: You can escape the PFA sequence by interrupting the transformer throttle
before the first PA arrival message plays in Event 2 (neutral before reverse).
Tip #2: You can terminate PFA at anytime by turning the transformer throttle off for 15
seconds.
Tip #3: You do not have to be in the forward state to utilize PFA. For example if you
activate the PFA feature while in reverse and interrupt the throttle to enter neutral, you
will be entering neutral before forward rather than neutral before reverse as defined in
Event 2 above. Consequently, the forward phase will be rendered inactive by
ProtoSounds instead of the reverse state as explained in Event 3. This will allow your
train to leave the train station in the same reverse direction that it arrived in.
Tip #4: You can utilize PFA even if you are double-heading with another engine,
regardless of whether it is equipped with ProtoSounds or PFA. If the engine isn’t
equipped with PFA, the only thing to remember is that you not turn up the transformer
throttle very high when entering the reverse state found in Event 3. If the throttle is set
toohigh,thenthesecondlocomotivewillbeginvibratingonthetrackasitsmotorswillbe
turning in the reverse state since engines not equipped with PFA cannot disable the
reversestateandwillthuscontinuepoweringtheirownmotors. Ifyoursecondengineis
equippedwithPFA, it can be disabledbyenteringRESET function 28. See thesection
on programming RESET functions on page 17 of this manual to disable PFA.
Tip #5: It is not necessary for the squealing brake sounds to be heard to play the PFA
sounds. For example, the brake sounds won’t be heard if the high voltage setting is
below 13 volts and the power is interrupted to enter the neutral state.
Tip #6: You can leave any of the event states at any time after entering the state by
simply interrupting the transformer throttle. Any sound effects programmed to play in
that event will simply not occur. The only exception is Event 2 and Event 5. In Event 2,
interrupting the throttle has no affect on PFA until after the PA arrival message has
played and the doors have opened. In Event 5, you cannot interrupt PFA until after the
engine begins to move. Interrupting the throttle before the engine begins to move has
no affect on the locomotive.

13 NYC Dreyfuss Operating Manual
OPTIONAL PROTO-COUPLER OPERATION
Your Dreyfuss locomotive can be upgraded with coil-wound ProtoCouplers™ which can
be mounted on the tender and locomotive for remote controlled coupler operation. (See
your MTH or RailKing dealer) Because it is controlled through ProtoSound’s
microprocessor,itdoesn’trequireanuncouplingtracksectionormodificationtoyourlayout
to function. The ProtoCoupler can be activated with any compatible standard AC
transformer equipped with a whistle button. For a list of compatible transformers, see the
chart on page 25. Once installed, the three simple steps below are required to operate the
coupler.
A. Put your engine in NEUTRAL and turn the throttle all the way up.
B. Press the whistle button on your transformer to “Arm" the coupler.
C. After arming the coupler, press the whistle button again to open the coupler.
SELF-RECHARGING BATTERY BACKUP SYSTEM
ProtoSounds™ state-of-the-art design includes a self-recharging battery backup system
forimproved performanceatanyspeed. Thereare noswitchestoturnonor offtoenjoythe
benefits of the automatic battery backup system as this feature is automatically activated
whenever track power is turned on. The battery ensures that power to the sound system
willnotbeinterruptedduringdirectionalchanges,settingRESEToptions,orwhentraveling
over dirty track and switches. You will know the backup system is operating as sound will
no longer abruptly shut off whenever a momentary interruption in track power occurs.
ProtoSounds contains a warning alarm if the battery backup system fails to automatically
turn off when power to the track is turned off. You will hear a repeating whistle blast
indicating that the backup system hasn’t turned off. Should this occur, you will need to
unplugthebatteryfromtheProtoSoundmoduletopreventthebatteryfrombeingrundown.
Lubricate
Coupler
Knuckle
Figure 5: Lubricating Optional ProtoCoupler Knuckle
When the knuckle fires open you will
hear the buzzing of the coil energizing
and the sound of the air lines coming
apart. It can best be described as a
CHA-CHUSHHH sound. Once the
coupler is armed it can be fired in
Forward, Neutral or Reverse. However,
you may find that the coupler doesn’t
open when firing the coupler at high
speeds or high voltage settings. Reduce
the voltage setting on your transformer if
this occurs and run your engine at a
slower speed before firing the coupler. If
the coupler continues to open erratically,
try lubricating the coupler knuckle with

NYC Dreyfuss Operating Manual 14
PROTOSOUND™ VOLUME ADJUSTMENT
YourProtoSoundsystemhastwotypesofvolumeadjustment. Amanualturnknobonthe
bottom of the tender chassis (See Fig. 6) allows you to control all the sounds in the system
and a remote control “RESET" option allows you to control the volume level of the steam
engine chuffing sounds remotely from the transformer. Turning the volume adjustment
knob clockwise will increase the volume and counterclockwise will lower the volume of all
sounds; bell, whistle, steam chugging sounds, enhanced neutral sounds and others. For
instructions on operating the RESET volume adjustment option, see the section entitled
“Using RESET to Program ProtoSounds" on the following pages.
REPLACING THE PROTOSOUND BATTERY
The battery, located in the engine’s tender (see Figure 10 on page 20 for the location
of the tender mounting screws), is a rechargeable NiCad type which is continually
charged from the track when power is applied. NiCad batteries are a dry battery and
should not leak or cause any damage to your locomotive and will last up to five years or
longer.
If you notice that the sounds seem distorted or garbled at low voltages or become silent
when power from the transformer is shut off, the battery may be going bad. Before
replacing the battery, you should put the engine in NEUTRAL and leave the transformer
throttleatabout12voltsforfifteenminutes. Thisshouldtemporarilyrechargethebattery. If
thegarbledordistortedsoundsare reduced,thenyourbatterychargehasworndown.You
cangiveyourbatteryafullchargebyleavingtheengineONinNEUTRALfor16to18hours.
(MakesurethesmokeunitswitchisintheOFFpositiontopreventharmtothesmokeunit)
If you need to replace the ProtoSound™ battery, it is a special NiCad 7-cell, 8.4v battery -
NOT the 6-cell, 7.2v battery found in most convenience stores. The 6-cell NiCad is NOT
recommended for use with ProtoSound™ applications. Replacement ProtoSound™
batteries are available from MTH ProtoSound Electronics at 9693-A Gerwig Lane,
Columbia,MD 21046. Astandard9valkalinebatterycanbesubstitutedasatemporaryfix,
butsincealkalinebatteriescan’ttakeacharge,itwilleventuallyweardown. Regardless,it
should give you a week to a couple of months use while you wait for your replacement
ProtoSound™ battery to arrive.
ProtoSoundManual
Volume Adjustment Knob
ReverseUnit
LockoutSwitch
Figure 6: Adjusting The ProtoSound Volume

15 NYC Dreyfuss Operating Manual
USING “RESET” TO PROGRAM PROTOSOUNDS™
As mentioned earlier, there are several programmable options in each
ProtoSound-equipped engine that can be remotely set from any compatible standard
transformer equipped with a whistle button. For a list of compatible transformers, see the
chart on page 25. This hands-off approach gives you unprecedented control of your
railroad empire’s motive power never seen before in model railroading. Each
programmable feature can be accessed whenever your engine is in the RESET state as
described in the section entitled “DCRU Reverse Unit Operation" found earlier on page 6.
By following the instructions below you will find the programming easy and straight
forward.
ENTERING RESET OPTIONS
While ProtoSound™ is equipped with only a few programmable features, additional
memory chips can be obtained to “Upgrade" the system in the future. Programmable
features are accessed in the RESET state by moving the transformer throttle up and down
between full voltage and low voltage (6 to 8 volts) without shutting the transformer off
completely. Each time this is done you advance, one feature at a time, through the
available options. An air-release sound is heard each time the throttle is advanced. In
addition, there are special sounds to tell you what RESET position you are in.
For example, if you want to select Feature 2 (an optional memory feature that sets an ID
number on your engine), you put the engine in RESET, and move the throttle up and down
from full throttle to low two times. After the second advance, you will hear two “clinks"
indicating that the computer is now in Feature 2. Advance the throttle again and you will
hear three “clinks" for Feature 3. Advance it two more times and you will hear a “clank"
indicating that you are now in Feature 5. Advance the throttle two more times and you will
hear a “clank" and two “clinks" indicating Feature 7. ((5 throttle advancements = 1 clank) +
(2 throttle advancements = 2 clinks). “Clank + “Clink" + “Clink" = Feature 7). You can
advancethethrottleasquicklyasyoulike(thoughyoumaynotheartheair-releasesounds)
andthecomputerwillstillrememberthenumber oftimesthethrottleisadvancedbyplaying
back the number of “Clinks" and “Clanks" to confirm the feature you’ve selected.
SETTING THE STEAM CHUFFING VOLUME
Of all the sounds that come with each ProtoSound-equipped steam locomotive, the one
most often turned down is that of the steam chuffing volume because it is the one sound
normallyheardwhenevertheengineisrunningandiswhatusuallycanbecometiresometo
the ear over prolonged running sessions. The volume adjustment is controlled through
RESET Feature 6.
Toaccess thefeature, turn onyour transformer throttleto put theengine in RESET.Move
the throttle up and down as described above 6 times. After you hear the “clank" and “clink"
indicating that you are in Feature 6, press the whistle button to select the steam chuffing
volume level you desire. Pushing the whistle button once will give you full steam chuffing
volume,which is the factory setting. Pushingthe whistle buttona second time will giveyou

NYC Dreyfuss Operating Manual 16
50%steamchuffingvolume,pushingitathirdtimewillgiveyou25%steamchuffingvolume
andpushingitafourthtimewillgiveyounosteamchuffingsounds. Themicroprocessorwill
immediately play the sound level each time the whistle button is pushed so that you can
decide if it is acceptable. You can recycle through the four choices by simply continuing to
press the whistle button.
Once you have decided on the appropriate volume level, turn the transformer throttle off
andonagainorpressthetransformerdirectionswitchtolockinyourselection. Thevolume
adjustment will remain set at the level you have chosen until you change it again.
Regardless of the steam chuffing volume setting, the whistle, bell, steam compressor
pumpsandenhancedneutralsoundswillfunctionnormally. Infactbecauseonlythesteam
chuffing volume is affected by selections in Feature 6, when you select 0 steam chuffing
volume, you will still hear the compressor sounds when the engine is running. Don’t
confuse these sounds with the steam engine chuffing sounds.
PROGRAMMING FOR A SEPARATE BELL BUTTON CONTROLLER
TooperateProtoSoundswithaseparate
bellbutton controller, you willneedtowire
up the controller to your transformer and
track as per the instructions in Fig. 8.
Once the bell button is wired, you can use
the bell button to activate the bell in
forward, netural or reverse. If the bell
doesn’t operate and is wired up correctly,
you will need to program the ProtoSound
module to operate with a bell button. To
do this, enter RESET and go to Feature
20. (See the section “Entering RESET
Options"on page 15.) Once inFeature 20, pressthe whistle button and waitfor the module
tosoundabellding(s).Continuepushingthe whistlebuttonuntilthemoduleplaysbackone
ding (signifying that the module has been programmed for a bell button). Simply turn the
throttle off and then on again to “Lock-In" the new setting. You can also use Feature 18 to
reset to its original factory (default) setting (separate bell button operation).
PROGRAMMING FOR WHISTLE IN NEUTRAL OPERATION
If you want to blow your whistle when your engine is in neutral, you will need to program
ProtoSounds to do so as the factory setting only allows the whistle to blow in forward or
neutral. To do this, enter RESET and go to Feature 25. (See the section entitled “Entering
RESETOptions"onpage15).OnceinFeature25,pressthetransformerwhistlebuttonand
wait for ProtoSounds to sound a bell ding(s). Continue pressing the whistle button until
ProtoSoundssounds two belldings (signifying that ProtoSounds hasbeen programmed to
sound the whistle in neutral). Turn the throttle off and then on again to “Lock-In" your
selection. Now,wheneveryou are in neutral, youcanblowthe whistle with thetransformer
whistle button. To reset ProtoSounds to its original factory setting of no whistle in neutral,
PowerTerminal
Wire(black)
CenterRail
Wire(red)
OutsideTrack
Wire(ground)
Figure 8: Wiring Up A Bell Button Controller

17 NYC Dreyfuss Operating Manual
repeat the above procedure but keep pressing the whistle button in Feature 25 until
ProtoSounds only dings once instead of twice.
Note: Ifyoudidn’tsetthe“SeparateBellButtonOperation"inFeature20beforesettingthe
“Whistle In Neutral" option, then your bell will not function until you set the “Separate Bell
Button" option. In addition, when “Whistle In Neutral" is set, the whistle will not sound in
neutralif thetransformerthrottlesettingisover 11 volts. At11voltsorhigher,ProtoSounds
may arm the ProtoCoupler for operation whenever the whistle button is pressed and the
engine is in neutral.
PROGRAMMING FOR OPTIONAL PROTOCOUPLER OPERATION
ProtoSounds now comes with a new RESET feature that allows the operator to remotely
turn off the ProtoCoupler coil coupler functions. This is especially useful when double or
triple-heading ProtoSound equipped engines since every engine equipped with a
ProtoCoupler will fire when prompted to by the operator. By turning off the ProtoCoupler
operation on certain engines, you can fire the couplers open on the other engines without
uncoupling the engines from each other. To turn the ProtoCoupler function off, enter
RESETandgoto Feature 10. (See the sectionon“EnteringRESETOptions" on page 15).
OnceinFeature10,pressthetransformerwhistlebuttonandwaitforProtoSoundtosound
a bell ding(s). Continue pressing the whistle button until ProtoSounds sounds two bell
dings (signifying that the ProtoCoupler option has been turned off). Simply turn the
transformerthrottleoffandthenonagaintolockinthenewsetting. ToResetProtoSounds
to its original factory setting of ProtoCoupler on, repeat the above procedure but keep
pressing the whistle button in Feature 10 until ProtoSounds only dings once instead of
twice.
PROGRAMMING FOR SQUEAKING BRAKES AND PFA OPERATION
ProtoSounds is equipped with a RESET setting to turn off the Squealing Brakes and
Passenger Station Sounds (PFA) features. This is especially useful if you are
double-heading engines that are both equipped with PFA. You wouldn’t want to stop in a
freightyardand have both engines initiatetheirPFAsounds. To turn off SqueakingBrakes
andPFA(youcannotturnoffoneortheother),enterRESETandgotoFeature28. (Seethe
section on “Entering RESET Options" on page 15). Once in Feature 28, press the
transformer whistle button and wait for ProtoSounds to sound a bell ding(s). Continue
pressing the whistle button until ProtoSounds sounds two bell dings (signifying that the
Squeaking Brakes and PFA have been turned off). Simply turn the transformer throttle off
and then on again to lock in the new setting. To reset ProtoSounds to its original factory
setting of Squeaking Brakes and PFA on, repeat the above procedure but keep pressing
the whistle button in Feature 28 until ProtoSounds only dings once instead of twice.
ACTIVATING REMOTE LOCK-OUT CONTROL

NYC Dreyfuss Operating Manual 18
ProtoSound equipped engines feature a RESET setting that allows the operator to
remotely “lock” the engine into forward, neutral or reverse. This is especially useful on
layoutsthatfeature“blocked”track sections. Thelockoutfeaturecomesfromthefactory in
theOFFposition,meaningitisnotactivewhenyoufirsttaketheengineoutofthebox. This
is done to prevent novice operators from accidentally locking their engines into forward,
neutral or reverse and then mistakingly thinking that the engine’s electronics have failed.
To activate the Remote Lockout Control setting, go to RESET Feature 40 (see the section
entitled“EnteringRESETOptions”onpage15). OnceinFeature40,pressthetransformer
whistlebuttonandwaitforProtoSoundstosounabellding. Continuepressingthewhistle
buttonuntil ProtoSounds sounds two bell dings signifying that theRemoteLockoutControl
has been selected. To lock in the setting, simply turn the throttle all the way off and then
backon again. To turnthe Remote LockoutControl setting backoff, go backto Feature 40
and press the whistle button until only one bell ding sounds. To lock in the setting, simply
turnthetransformerthrottleoffandthenbackonagain. Alternatively,youcangotoRESET
Feature 18 to reset all ProtoSound Features back to their original factory default settings,
including Remote Lockout Control.
RESETTING ALL PROTOSOUND OPTIONS TO FACTORY DEFAULTS
ProtoSounds is equipped with a RESET feature (Feature 18) that resets all
programmable options back to their original factory settings. This is a useful feature if you
findyourenginenotoperatingtheway you think it should and don’twant totake thetime to
check each RESET Feature one at a time. To reset all the RESET Features back to their
original factory settings, enter RESET and go to Feature 18. (See the section entitled
“Entering Reset Options" found on page 15). Once in Feature 18, press the transformer
whistle button and wait for ProtoSounds to sound a garbled bell sound. Simply turn the
transformerthrottleoffandthenonagaintolockinthesettingandresetalltheoptionsback
to their original factory settings.

19 NYC Dreyfuss Operating Manual
REVERSE UNIT LOCK-OUT OPERATION
ProtoSound’sunique designeliminates theneed for a lock-out switch on the locomotive
by allowing the customer to lock the engine into any directional state (forward, neutral or
reverse) from the transformer. This will allow users to run the engine on layouts equipped
with block signals or stop stations which would normally cycle the engine back into neutral.
The feature must be first turned on by accessing RESET Feature 40 (See page 17).
LOCKING THE ENGINE INTO FORWARD OR REVERSE
TolocktheengineintoForwardorReverse,usethetransformerthrottletoenterForwardor
Reverse (whichever state you want to lock the engine into) and while the engine is moving
press the whistle button. WHILE THE WHISTLE IS BLOWING TURN THE THROTTLE OFF AND
THEN LET GO OF THE WHISTLE BUTTON. After about one second, you will hear a short horn
blast. QUICKLY TURN THE THROTTLE BACK ON AGAIN. Your engine is now locked into
ForwardorReverseanditwillremain so until you unlock the engine,even ifyou waita year
to run your engine again.
UNLOCKING THE ENGINE
Unlocking the engine is a similar procedure. WHILE THE ENGINE IS MOVING, PRESS THE
WHISTLE BUTTON. WHILE THE WHISTLE IS BLOWING, TURN THE THROTTLE OFF AND THEN LET
GO OF THE WHISTLE BUTTON. Afterthreesecondswithoutpower youwillhearone chimeof
theRESETbell. TURNONTHEPOWERAGAIN. YourengineisnowinRESETandwilloperate
normally once you interrupt power and enter the forward direction.
LOCKING THE ENGINE INTO NEUTRAL
To lock the engine into the NEUTRAL position,PUT THE ENGINE IN NEUTRAL AND WITH THE
THROTTLE STILL ON, PRESS THE WHISTLE BUTTON. WHILE THE WHISTLE BUTTON IS BEING
PRESSED, TURN OFF THE THROTTLE AND LET GO OF THE WHISTLE BUTTON. After about one
second, you will hear a short blast of the horn.QUICKLY TURN THE POWER BACK ON AGAIN.
Your engine is now locked into NEUTRAL.
NOTE: WhenlockingtheengineintheForwardorReversepositions,thewhistlebuttonwill
blowthehorn. But when locking the engineintotheNEUTRAL position, the whistlebutton
may turn on or off sounds of the bell, coupler arming or coupler firing depending on the
transformer throttle voltage settings prior to the user’s attempt to lock out the engine.
Remember, the whistle doesn’t blow in NEUTRAL (unless you programmed it to do so
using Feature 25. See page 16 for details), only the bell rings or the coupler operates in
NEUTRAL. Whileitdoesn’tmakeanydifferenceonhowthelockoutfunctionoperates, you
may hear one of the three different NEUTRAL-activated sounds.
To unlock theenginefromthe NEUTRAL position,followtheprocess to unlocktheengine
in the Forward or Reverse directions above.

NYC Dreyfuss Operating Manual 20
OIL & LUBRICATION INSTRUCTIONS
In order for the engine to perform correctly and quietly, it is important that both the
locomotive and tender be lubricated before operation. Lubrication should include all
side-rods and linkage components to prevent them from squeaking. Use light household
oilandfollowthelubricationpointsmarked“L"inFig.8above. Inadditiontothelocomotive,
thetenderaxlesshouldreceiveadropofoilwhereeachaxleentersthetrucksideframe.
The locomotive gearing has been greased at the factory and shouldn’t need additional
grease until after 50 hours of operation or one year whichever comes first. Grease can be
addedby insertinggrease intothe gear box inside the chassis. In order to accessthe gear
box,theboilermustberemovedfromthechassisbyunscrewingthefourchassisscrewsas
seen in Figure 8 above. Once the boiler is removed, the gear box can be opened by
unscrewing the two screws on the plate located in front of the motor. Grease can then be
applied into gear box with a grease tube dispenser.
Periodically, check the locomotive and tender wheels for dirt build-up as this can
significantly affect the engine’s ability to perform properly. Dirty track and dirty wheels can
cause both poor electrical contact and poor traction especially on elevated track sections.
Finally, dirt and oil build-up can prematurely wear out the neoprene rubber traction tires.
Tender Body
Mounting Screws
L
L
Figure 9: Lubricate The Tender Chassis Trucks Where The Axle Enters The Side Frame
L
L
L
G-(Grease)
FrontChassis
MountingScrews
RearChassis
MountingScrews
Figure 8: Lubricating The Locomotive Chassis