ScaleTrains Museum Quality SDL39 User manual

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INTRODUCTION
Thank you for your purchase of our Museum Quality™SDL39 locomotive. In this
booklet you will nd information in regards to maintenance, lubrication, body
removal, storage and basic DCC instructions. For additional information, part
numbers, and exploded drawings, please see our website: www.scaletrains.com.
If you have purchased a DCC and Sound Equipped model, then you will have
access to all the features of this outstanding locomotive. For those that have
purchased the DCC and Sound Ready version, the DCC information contained
in this manual will not be applicable to your model. All of our models are
equipped with a 21 pin MTC receptacle should you decide to install DCC at a
later date. Our SDL39 should accept any 21 pin DCC decoder.
One new and exciting feature of your new Museum Quality SDL39 is that it has
the latest version of ESU software installed which includes the “Full Throttle”
feature. This allows even more realistic locomotive operation. We recommend
that you download the “Full Throttle” Quick Start Guide and the decoder
manual from the ESU website to learn all about this and other features of ESU
decoders. Visit www.LokSound.com for more information.
Our DCC and Sound Equipped SDL39 locomotive model is tted with the ESU
LokSound™V5 (ESU #58429) full-function DCC decoder. For more information
and to download the decoder technical manual, visit the ESU website listed
above. The manual document number is 51989.
For those purchasing a DCC and Sound Ready locomotive who want to install
sound at a later time, the same decoder may be used. If you wish to install a
non-sound decoder, ScaleTrains™ recommends the ESU LokPilot™ # 59629.
When choosing a decoder for a DCC and Sound Ready unit it is important to
remember that ONLY ESU decoders will have access to the advanced lighting
features of our ScaleTrains locomotives and the Power Pack™circuit. Please
contact our sales department for assistance in selecting the proper decoder
and programming for your operation. The manual for the non-sound decoder
is document number 51986. Either choice will allow you to get the most out of
the sound or lighting functions designed for your locomotive. Please see the
section “Something New” for more information on installing decoders.
Your state-of-the-art locomotive model is designed to utilize either two sugar
cube type speakers, 11mm x 15mm, in the included custom enclosure and
wired in parallel back to the main board or a 16mm x 35mm oval speaker
mounted directly into the die-cast frame in place of the enclosure for the
smaller speaker pair.
NOTE: Other brand 21-pin decoders may t, however, they will not have access
to certain electronic components on the main board that control some lighting
functions and the Power Pack circuit.
THE PROTOTYPE
Milwaukee Road, with its branch lines and light infrastructure, purchased SD7s
and other similar locomotives for its operations. As these locomotives aged,
Milwaukee turned to EMD for a solution, resulting in the development of the
SDL39. The SDL39 was a compact locomotive, shorter and lighter than a GP38,
with a turbocharged 12-cylinder engine and reduced weight components. The
rst ve units were delivered in April 1969, with an additional ve delivered
in November 1972. The two orders of SDL39s had some differences in pilot
construction, ECAFB, jacking pads, and other features. Over time, modications
were made to the locomotives, including the removal of snow shields, the
addition of winterization hatches, and the replacement of electronic bells with
standard ones. Over the years, through mergers and acquisitions, the SDL39s
were owned by Soo Line, Wisconsin Central, and eventually Fepasa in Chile.

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THE MODEL
Your ScaleTrains SDL39 model is a meticulously designed and crafted model
to match the prototype. DCC and Sound equipped SDL39 models include
an on-board sound system, featuring speakers designed to replicate the roar
of the prototype. Also included are sounds for the horn, bell, and various
auxiliary systems.
HANDLING
Due to the delicate nature of the model, it is advised that care should be taken
when removing the model from its packaging and when placing it on the track
to operate or test.
REMOVAL FROM PACKAGING
To remove the locomotive, carefully slide off the outer sleeve from the
“clamshell”plastic holder cradling the model and set it aside.
Next, unsnap the plastic clamshell holder; note that one end is hinged and
designed to snap into the top half of the holder. Do this on a at surface to
reduce the risk of the clamshell, or the model, from slipping from your grip
and falling to the oor. Once the clamshell is fully open, carefullly remove the
model. Reverse the procedure for storing the locomotive.
STORING YOUR MODEL
If you choose to store your model in its box, pay close attention to the model’s
orientation as you place it in the clamshell container. The model will only t
correctly one way (the nose toward the clamshell hinge). Improper placement
may result in damage to small detail parts or railings on the model. Damage
due to improper storage is not covered under the manufacturer’s warranty.
When handling the model, it is recommended to grip the model rmly at its
mid-section and around the fuel tank while avoiding the ne details on the
model that may be present.
DISASSEMBLY
When disassembling the locomotive, it is recommended that it be placed
upside-down into a foam cradle to protect it from damage. In order to remove
the body, simply remove the coupler box screws, couplers, and coupler boxes.
Once the screws and coupler boxes are removed, the body shell can now be
removed from the mechanism. Pay particular attention to the possibility of
wires or other connections between the body and chassis. Gently lift up on
the body while paying close attention to small details. This should allow the
body to be easily removed as only friction is holding it in place. To install crew
gures in the cab, gently disconnect any handrails connected to the cab. There
is a tab at the top rear of the cab where it connects to the long hood. Once the
handrails are detached, the cab can be lifted up vertically. This will take a small
amount of force to pop the tab loose to allow the cab to come up. Reassemble
the model in the reverse order.
NOTE: If there are conduit pipes or other details that cross the separation
between the cab and engine hood, the cab may not be removed without
damage to these details.
CLEANING
If kept out of its protective packaging for extended periods, it is likely your
locomotive may accumulate dust or other debris. While unsightly, it can also
potentially damage the nish of the model if allowed to accumulate. To remove
light dust, it is recommended that a ne paint brush be used to gently knock
off dust particles. For heavier accumulations, canned air dusters (commonly
used for cleaning electronics), or air from an airbrush, can be used. Use care
with compressed air so as to not dislodge small detail parts.

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LUBRICATION
Your ScaleTrains locomotive represents hours of careful research and design
work, and we are proud to present it to you. With the right care, it should provide
years and years of model railroading enjoyment. Out of the box, the model
should be ready for service and no lubrication should be necessary, as it has
been carefully lubricated at the factory for optimum performance. If the need to
lubricate should arise, please follow these guidelines:
• Be sure to use a plastic-compatible lubricant! Most household
lubricants, such as “3-in-1” type oils, may damage the slippery
engineering plastic found in the driveline of the model. Wherever
possible, use lubricants designed specically for model railroad
or similar hobby uses, and if in doubt, check the label for any
compatibility warnings.
• Use the right type of lubricant in the right location! For metal-to-metal
bearing surfaces, the use of light or medium oils is recommended.
For plastic-to-plastic applications, such as gears, light greases are
recommended.
• Always use lubricant sparingly! As the saying goes, a little goes a long
way. When applying lubricant to bearing surfaces, a tiny drop or dab
applied with a ne point, such as a tooth pick, should be more than
sufcient. Any excess lubricant oozing from a bearing surface should
be carefully wiped away with a paper towel. Excess lubricant that
migrates onto electrical pickups can impede power and DCC signal
pickup, leading to erratic operation.
Lubrication points will be the same as would be expected in most any model
locomotive. On the locomotive power trucks, the bearing is behind the wheel
so a small drop of light plastic compatible oil can be used behind each wheel
as necessary.
The interior of the model is lled with circuit boards and wiring for the many
features of your locomotive. Because of this, great care must be taken when
applying lubrication to areas that may require it inside the locomotive. Refer
to the disassembly instructions and exploded diagrams to understand how
to remove the body to access the inner workings of the locomotive. This
information may be included with the model or available on our website.
To lubricate the locomotive, there are two main areas that require attention.
The rst is the motor bearings, which can be found between the motor ends
and brass ywheels on the motor shaft. For this area, a small drop of oil is all
that’s needed. The second area is the worm shafts on top of the gearboxes.
These also require a small drop of oil at both ends of the shaft. One end is
where the driveshafts are attached to the metal worm shaft, while the other
end is where the shaft slightly protrudes out of the outermost bearing.
To apply grease to the gearbox, you’ll need to remove the worm cover
and then remove the worm and shaft. Once these are out of the way, you
can apply a small amount of grease to the top gearbox gear that contacts
the worm gear. After applying the grease, you can re-install the worm and
worm cover. As the locomotive runs, the grease will be distributed inside the
gearbox and coat all the gears.
Whenever possible, avoid contact of the lubricant to the model’s exterior
nish. Oils and greases can harm the factory paint and lettering. Any excess
that may make contact should be gently wiped away with a paper towel or
other ne cloth.
Due to the delicate nature of the interior components inside the locomotives,
if there is any concern, it may be best to contact your local dealer or contact
us directly to help guide you through the lubrication process. Our support
team is available by email at: [e-mail].

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OPERATING ON DC
DCC & SOUND READY MODELS
DCC & Sound Ready models are equipped with a blind plug (dummy plug)
that allows the model to operate on a DC powered track right out of the box.
No modication is necessary.
When operating a DCC & Sound Ready model, you will have directional
headlights, white only classication lights (if equipped) and either number
board or front ditch lights, but not both. Rear ditch lights (if equipped) will not
operate on DC power unless the rear of the locomotive is designated as front
by railroad practice.
DCC & SOUND EQUIPPED MODELS
DCC & Sound Equipped models are equipped with an ESU LokSound V5
DCC decoder that will allow operation on a DC powered track once sufcient
electrical power is supplied. The Start Up Cycle will begin with the turnover of
the engine prime mover sound. Once the Start Up Cycle has completed, the
throttle may be advanced to move the locomotive.
DC OPERATION NOTE: Small train set power packs and some low output DC
power packs may be able to supply enough voltage/current to activate the start
up sound but lack the output capacity to cause the model to move. If this occurs,
there is no cause for alarm. However, a higher output power supply should be
used that does not exceed the input capacity of the decoder. See ESU decoder
manual for details on power requirements.
Sound equipped models operating on DC will only have the prime mover sound
that will increase through the notches as power is applied with the DC supply.
DCC functions that are autonomically controlled on DC and that will be on are
the front and rear headlights (directional), number boards, walkway lights (if
equipped) and front ditch lights. Rear ditch lights will not operate nor will other
sounds like the horn, bell, air compressor, etc. These sounds may only be user
controlled when operating on DCC.
OPERATING ON DCC
DCC & SOUND READY MODELS
DCC & Sound Ready models (without a decoder) contain sensitive electronics
and should not be operated on a DCC controlled track even if the DCC
system is capable of doing so. DCC isn’t A/C or DC, it is both! Confusing, to
some degree, but it is a bi-polar, square wave, DC signal or alternating DC.
Operating a DCC Ready model without a decoder installed on DCC causes
the motor to buzz because it is alternating direction at the frequency of the
DCC signal. This isn’t good for the motor as it will heat up rapidly and could
cause damage over time.
DCC & SOUND EQUIPPED MODELS
Operating your new model on DCC is the best way to get the most enjoyment
out of all the state-of-the-art features that are built into the model whether
yours is factory sound equipped or you have chosen to install a non-sound
decoder. The rst question in either case is:“How do I get started?” Below, we
will be providing DCC instructions for factory sound equipped models.
GETTING STARTED
ScaleTrains models begin with the sound off when you rst put the
locomotive on the track and may be addressed initially using DCC address: 3.
On DCC, pressing F8 will initiate the Start Up cycle. The Start Up cycle for
your new locomotive is one of the most realistic in the hobby to date! During
Start Up, the locomotive may not be moved until the cycle completes and the
locomotive’s prime mover sound settles down to an idling state. This can take
from 40 seconds to one minute depending on the length of the recorded
start cycle. Start Delay can be disabled by setting CV124 = 0 (default = 4). If
you wish for the Start-Up cycle to begin when track power is applied, change
the following CV settings in order:
CV31 = 16, CV32 = 3
-----------------------------
CV419 = 32
CV435 = 32
CV451 = 32
CV467 = 32
CV31 = 16, CV32 = 4
-----------------------------
CV307 = 32
CV339 = 16

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ADDING A DECODER
There is no better way to get the most from your model than to operate using
DCC. An ESU DCC decoder allows you to access all of the lighting outputs
built into your model. If you are installing a sound decoder, you will have the
most realistic model available today!
Due to the many lighting features that our Museum Quality EMD SDL39
is equipped with, we have employed two DIP switches on the main circuit
board. These help with the DCC functionality of the lighting features. If your
Museum Quality model has factory sound, or you are installing an ESU sound
or non-sound decoder, these DIP switches are to be turned OFF. See figure 1
to help with the lighting effects and only when using an ESU brand decoder
(DCC & Sound Ready units come with the DIP switches in the ON position).
If you choose to use a different brand decoder, the DIP switches should be
in the ON position. Important Note: non-ESU decoders will only have partial
access to the advanced lighting effects and will not be able to control the
Power Pack that is part of the main board. When using non-ESU decoders,
you will have directional headlights, lighted number boards, and white class
lights (if equipped). Red and green class lights will not function with non-ESU
decoders the same as when operating on DC power.
Fig.1
Note: For non-sound Lokpilot installs: Units equipped with class lights will
not be able to cycle through the various colors using F5 as you can with a
Loksound decoder. When using a Lokpilot decoder, three functions buttons
are used to control the class lights. Check the Function Map Chart to see how
F5 is used on your model.
SOUND VOLUME ADJUSTMENTS
MASTER VOLUME CONTROL CV63
When operating your model, it may be desirable to adjust the sound volume
differently than programmed at the factory. Only one CV is necessary to
adjust the Master Volume Control. CV63 moves all sound up or down
depending on the setting. The ESU V5 DCC decoder will allow adjustments
from 0 to 150%. The factory setting will vary depending on the model. You
can read CV63 with your DCC system’s program track to learn the default
value for your model before making any adjustments. Volume settings from
0 to 128 are 0 to 100%. Settings from 129 to 192 are 101 to 150%.
Important Note: Settings between 129 and 160 (125%) are generally safe.
Settings above 160 should be used with caution, especially with single or small
speaker installations to keep from over driving and damaging your speakers.
INDIVIDUAL SOUNDS / VOLUME CONTROL
In addition to the master volume, the advanced functions of the ESU
Loksound V5 decoder allows you to control the volume on each sound
loaded in the decoder separately. Confusing? Not really. Think of your
decoder like the mixing board of an event hall or concert venue. In these
setups, you can control the input of each microphone, instrument, etc. to mix
them and come up with the compostion you want. Your ESU decoder does
the same with the individual input volumes for each sound and then the
master volume to move all sound up or down at the same percentage, while
keeping the sound mix the same.
To control so many sounds on a single decoder, ESU has utilized CVs above
the normal cap of 255 by indexing the CV. Indexing can be a complicated
subject but to simplify it, you must use three CVs to set the volume of an
individual sound CV. We will use CV31, CV32 and the CV for the sound slot’s
volume (see Sound CV chart).
Important Note: The following CVs MUST be set rst before adjusting the
sound slot volume: CV31 =16 and CV32 = 1.

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SOUND SLOT VOLUME CHART
Below are the individual sounds for your locomotive and the CVs that control
the volumes. Remember, before adjusting these CVs, you MUST set CV31 =
16 and CV32 = 1. Failure to set these rst will result in the decoder ignoring
your command or you will program something unintentionally.
MUST rst set CV31 = 16 and CV32 = 1 to adjust slot volumes 1 to 32
Sound Slot Sound Volume CV Default Setting
1Prime Mover 259 100
2Empty 267
3Horn 275 128
4Bell 283 60
5Coupler 291 60
6Dynamic Brake 299 0
7Air Compressor 307 40
8Radiator Fan 315 60
9Automatic Brake -
Emerg
323 40
10 Automatic Brake 331 40
11 Independent Brake 339 40
12 Independent Bail Off 347 40
13 Sanding Valve 355 20
14 Hand Brake Rachet 363 50
15 Cab Door 371 70
16 Engine Hood Door 379 70
17 Air Dryer 387 70
18 Dryer on shutdown 395 70
19 Reverser 403 30
20 Reverser Center 411 30
21 Isolation Switch 419 30
22 Alarm Bell 1 427 30
23 Flange Squeal 435 30
24 Short Air Let Off 443 70
25 Traction Motor 451 55
26 Start Delay 459 30
27 Manual Notch Logic 467 20
28 Switch Flange 475 50
29 Brake Set/Release -
Auto
483 40
30 Alerter 1 491 30
31 Class Light Logic 499 90
32 Shutters 507 30
Brake sound 259 80
Gear shift sound 267 128

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Function Description Notes:
F0 Headlight Directional
F1 Bell Choose Bell sound via CV164
F2 Horn Choose Horn sound via CV163
F3 Coupler
F4 Dynamic Brake
F5 Classication Lights
F6 Ditch lights
F7 Beacon If equipped
F8 Startup Number boards, walkway and
ground lights on.
F9 Drive Hold OFF if F10 active
F10 Independent Brake
F11 Radiator Fan
F12 Headlight Dimmer Turns OFF F6 while active
F13 Air Dryer
F14 Not Used
F15 Isolation Switch Disables motor control when active
F16 Air Dryer on Shutdown
F17 Brake Set / Release
F18 Sanding Valve
F19 Short Air Let Off
F20 Air Compressor
F21 Air Dryer
F22 Cab Door
F23 Engine hood door
F24 Reverser Center Locks out throttle controls when on.
F25 Shutters Open/Closed
F26 Manual notching up,
F27 Manual notching down
F28 Manual notching logic Toggle on/off to use Manual Notching
F29 Load Primary load
F30 Automatic brake
F31 Sound Fader
Information for function mapping, sound slots and more can be found in ESU technical
manual #51989 for the Loksound V5 DCC decoder. The document is available for
download at www.LokSound.com.
FUNCTION CHART

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BASIC DCC FUNCTIONS
F0 HEADLIGHTS
Like most models, in DCC, F0 will illuminate the headlight in the direction
of travel, forward or backward. You may dim either light by pressing F12.
Please note that headlights are only illuminated in the direction of travel. In
DC operation, the headlights are illuminated automatically and directionally
controlled and are on all the time if sufcient power is applied to the track.
F4 DYNAMIC BRAKES
SDL39s are not equipped with dynamic brakes. If F4 is pressed, the prime
mover will drop to idle and hold until it is turned off.
F5 CLASS LIGHTS
The SDL39 is equipped with changeable tri-color class lights (per prototype).
The colors signied train status on the prototype:
Green: Second section of the same train symbol/number
White: “Extra” train not shown in the timetable
Red: Reverse move (pushers)
On the model, you can press F5 to illuminate the class lights. A single press
will activate a white light; press again, and it will change to green, and again
to go to red. A fourth press will turn the class lights off and a fth will start the
cycle again. In DC operation the class lights will come on automatically and in
the white color only.
NOTE: Class lights will only show in white color in DC operation.
F6 DITCH LIGHTS
Some SDL39s are equipped with working front and rear ditch lights (based
on the prototype). Also, some will have ditch lights that ash when the horn
is blown. Some modelers may prefer to change the ditch lights to their
preference. The CVs below will allow you to congure them to suite your
operating preference.
NOTE: Ditch lights will only function in DCC operation.
F12 HEADLIGHT DIMMER
When F12 is activated, the headlight in the direction of travel will be reduced
in brightness approximately 50% and the ditchlights (if equipped) will be
extinquished until F12 is toggled off. This feature would be used if your
locomotive was in a siding awaiting a opposing train to pass or if it were
standing at a station or other waiting point.
F15 ISOLATION SWITCH
The isolation switch is used on prototype locomotives to electrically isolate
the unit from the rest of a consist. With the isolation switch on, the prime
mover and air compressor will run and the lights will work but it will not
respond to throttle commands or make power. On your model, activating the
isolation switch will disable the throttle control and the model will remain at
an idle state until F15 is toggled off.
For Flashing Ditch Lights:
CV31=16, CV32=8
---------------------
CV373=4, CV389=4
For Non-Flashing Ditch Lights:
CV31=16, CV32=8
---------------------
CV373=0, CV389=0

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BASIC DCC FUNCTIONS (continued)
GROUND LIGHTS and WALKWAY LIGHTS
This locomotive is equipped with LED-lit walkway lights and ground lights the
same as the prototype. These lights are automatically controlled and come
on during the Start Up cycle when F8 is pressed. They will go off during the
Shutdown sequence when F8 is pressed again to shut the locomotive down.
NOTE: If F8 is used to mute the sound during operation, these lights will be
turned off until the sound is unmuted with F8.
ESU POWER PACK
ScaleTrains models come equipped with an ESU “Power Pack” energy storage
device built into the locomotive. These Power Pack devices will work as a
backup if the model looses power for a short period of time. If your model is
factory equipped with a Loksound decoder, if one is installed later, or if you
install a Lokpilot decoder, you will be able to utilize the Power Pack circuit
in your ScaleTrains HO model. Non-ESU decoders cannot control the Power
Pack and it does not function on DC power, nor in DCC & Sound Ready
models without an ESU decoder installed and properly congured. Please
remember, a Power Pack is a backup, not a battery. This is not an excuse to
never clean your track again! They must be charged using track power to
function and need track power to stay charged.
The time in which the caps bridge a power loss is adjusted by using CV113.
The default setting on most models is 32. This can be adjusted up or down.

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BASIC PROGRAMMING NOTES
DCC & SOUND EQUIPPED MODELS
Customizing the programming in your DCC & Sound Equipped model is yet
another way to get more enjoyment from your investment. With a few basic
guidelines, customizing can be easily done. You may also wish to have the
manual for your DCC system handy as well in case a refresher is necessary.
It is recommended that you use Paged Mode programming to adjust
CV settings on your DCC system’s programming track. While this is the
recommended mode, Direct Mode may also be used and in many cases,
except a decoder reset, some adjustments can be made with Programming
on the Main (i.e. address programming, master volume change, horn or
bell choice, etc). An auxilliary programming track booster is not necessary
to program an ESU decoder and can interfere with programming in some
instances. CVs cannot be adjusted if you are operating your DCC & Sound
Equipped model on a DC powered track.
If you will operate your ScaleTrains HO locomotive on DCC, it is
recommended that you download, read and understand the appropriate
Loksound decoder manual for the decoder in use in your model. The V5
manual is document # 51989 on the ESU download webpage at www.
LokSound.com and is correct for all DCC & Sound Equipped models
produced after January 2019.
DIGITRAX CV PROGRAMMING FOR CVs OVER 255
Some older Digitrax DCC systems do not allow programming of CVs above
255. In order to make full programming possible, we have implemented
an assistance tool. This helps to write the number of the CVs desired
temporarily into two assisting CVs (so-called address registers), since the
usual CVs cannot be reached. Afterwards, the value of the CV desired will
be programmed into another assisting CV (value register). When the value
register is written, the content will be copied to the actual desired position
and the assisting CV will be set back. Consequently, 3 CVs have to be
programmed to write one CV. These three CVs are described in the
following text:
CV96 - Name Offset CV - Saves the CV number that should be actually
programmed in hundreds. Value Range: 0 to 9.
CV97 - Address CV - Saves the CV number that should be actually
programmed in units of tens. Value Range: 0 to 99.
CV99 - Value CV - Saves the value of the CV that should be actually
programmed. Value Range: 0 to 255.
Example: Need to program CV317 to value of 120.
Program the value of the CV number in hundreds into CV96.
In this example: CV96 = 3
Program the value of the CV number in tens and ones into CV97.
In this example: CV97 = 17
Program the desired value of the target CV into CV99.
In this example: CV99 = 120

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BASIC PROGRAMMING NOTES (continued)
As soon as you have programmed CV99, the value of CV99 will be
transferred into CV317. When the programming is nished, CVs 96, 97, and
99 will be set back automatically.
This procedure is ONLY needed when programming CVs above 255 on some
older Digitrax DCC systems.
NOTE: Please make sure that index CV32 is set to 1 and Index CV31 is set to
16 before you change any of the individual sound volume CVs. Please refer to
the decoder manual as necessary for additional CV information. CVs 31 & 32
are not required to adjust the Master Volume, CV63.
Below are some of the basic information points about the V5 decoder and its
capabilities:
From the factory, the model is set to default DCC address 03.
• The decoder can be set to a 2 or 4 digit address with normal addressing
on all DCC systems.
• Supports CV1 Short Address 1-127
• Supports CV17/18 Long Address 128-9999. Please add 32 to the default
value in CV29 Conguration for the decoder to recognize a four-digit
address and other cong settings.
• Supports NMRA Consisting using CVs 19 (consist address), CV21
(consist function control F1 to F8), CV22 (FL and F9 to F12 (FL is F/R
directional headlight).
• The decoder may be reset on the program track by setting CV8 = 8.
NOTE: See important information on decoder resets in the CV8 Resetting
the Decoder section.
• Manufacturer’s ID: CV8 = 151
• ESU has added additional function button capabilities (see Function
Chart) that may be controlled in a consist using CV109 (F15 to F22) and
110 (F23 to F30). CV109 programs the same as CV21, CV110 (the same
as CV22 in regards to bit values).
CV2 Start Voltage (Vmin or Vstart)
Sets the minimum speed or voltage applied to the motor on throttle speed
step 1. This can be customized to preference but is generally set where the
locomotive will either almost move consistently at SS1 or will crawl on SS1. A
setting between 1 to 3 is common.
CV3 Acceleration Rate
Sets the amount of time it will take for the decoder to apply the max voltage
set by CV5 to the motor speeding up. The setting in CV3 is multiplied by
0.896 seconds to calculate the time. The CV range is 0 to 255.
CV4 Deceleration Rate
Sets the amount of time it will take for the decoder to reduce the max voltage
set by CV5 to zero when stopping. The setting in CV4 is multiplied by 0.896
seconds to calculate the time. The CV range is 0 to 255.
CV5 Maximum Voltage (Vmax, Vfull)
Sets the maximum speed that the locomotive will move. If one model runs
faster than another at full throttle, reducing CV5 on the faster locomotive
so that they are closer in speed will allow you to run differing locomotives
together. The CV range is 0-255 with 255 applying the maximum voltage the
decoder can supply to the motor. CV5 must always be greater than CV6 to
prevent erratic operation.
CV6 Midrange Voltage (Vmid, Vhalf)
Sets the midpoint of the speed range. A lower setting in CV6 will have smaller
increases in speed (voltage to motor) from Vstart to Vmid with throttle speed
step advances. Once you reach the Vmid set voltage, larger increases will
occur from Vmid to Vmax as you advance the throttle.

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CV8 RESETTING THE DECODER
Should it become necessary to reset the decoder to factory specs, place the
unit on the programming track of your DCC system and:
1. Enter Paged Mode programming,
2. Enter/read CV8,
3. Set/Program the value 8 into CV8.
That’s it! You have just reset the decoder to factory CV settings. This does not
affect the sounds on your decoder other than any volume settings that you
may have changed. They will be returned to factory settings.
NOTES:
• After a reset, CV8 will again read 151.
• CV1 Short Address will be active again and set to 03
• CV17/18 and CV29 will return to factory defaults
DO NOT reset the decoder using POM (Programming on the Main) as the
decoder requires a power cycle OFF to ON to complete the reset cycle.
Failure to do so may result in the decoder not properly resetting.
CV17 Long Address (Ad4) - High Byte
The value entered in CV17 determines the higher value (rst two digits) of
a long address entered into the decoder. See chart on pg. 114 of ESU V5
decoder manual #51989.
CV18 Low Address (Ad4) - Low Byte
The value entered in CV18 determines the lower value (second two digits)
of a long address entered into the decoder. See chart on pg. 49 of ESU V5
decoder manual #51989.
Manually Programming a Long (Ad4) Address:
The following information is the same as that found in the decoder manual
for determining and programming a long address manually. Some DCC
systems have automated methods for entering a long address that you may
prefer to use.
To programm a long address, you need to calculate the values for CV17 and
CV18 and enter them into the decoder. Please note that it is not possible
to program addresses via the programming mode “POM” Programming on
Main.
To program the long address proceed as follows:
• First you determine the desired address, for instance 4007.
• Then you look for the appropriate address range in Fig. 2.
The value to be entered into CV17 can be found in the column on the right.
In our example, it is 207.
The value for CV18 is established as follows:
desired address 4007
minus rst address in the address range - 3840
===============================
equals value for CV18 167
• Program CV17 = 207
• Program CV18 = 167
Your decoder is now programmed to address 4007.*
* You must still program Bit 5 of CV29 to recognize the long address.

14 15
BASIC PROGRAMMING NOTES (continued)
CV29 Conguration Register
The Conguration Register, CV29, tells the decoder how to behave in a
number of ways from speed steps, to speed curves, and whether to recognize
a short or long address. See gure 3 to learn how the default value was
reached on the ScaleTrains locomotive.
CV163 / 164 Alternate Horn And Bell Sounds
Your new ScaleTrains locomotive will come to you with the correct horn and
bell right out of the box per the specic prototype. In case you would like to
use different horn or bell sounds, we have provided an assortment for you:
CV163 Horns
CV163=0 Leslie S-3L-R CV163=6 Leslie S-3L
CV163=1 Nathan P3 CV163=7 Nathan K-5L-R24
CV163=2 Nathan P-5R24 CV163=8 Nathan K-3LA
CV163=3 Leslie S-3KR CV163=9 Leslie S-5T-RRO
CV163=4 Nathan K-5LA CV163=10 NathanK-3LA-R2
CV163=5 Nathan P-5A CV163=11 Leslie RS-3-L
CV164 Bells
CV164=0 EMD 8475495 Steel Bell 057
CV164=1 EMD 8004156 Bronze Bell 003
CV164=2 Prime Manufacturing PM-516 E-Bell
CV164=3 Prime Manufacturing PM-733 E-Bell
CV164=4 UKM B443 Steek Bekk 001
CV164=5 Graham-White E-Bell 004
CV164=6 Transtronic E-Bell 001
CV164=7 WC Hayes 0333 M-Bell 001

14 15
CV165 / CV166 Sound Options - Brake Squeal And Air Dryer
CV165=0 Composite Brake Shoe
CV165=1 Cast Iron Brake Shoe
CV166=0 Air Dryer Default
CV166=1 Air Dryer Slow
CV21, 22, 109 & 110 Advanced Consist Lighting Control
In order to control lighting in an Advanced Consist, CVs are used to determine
what functions will be active and available to an operator in a consist. Using the
chart below, determine what functions you wish to be active on the locomotive
when it is in a consist and make note of that CVs assigned numeric value. Add
the values for each fucntion controlled by a particular CV (CV21, 22, etc. ) and
program the cumulative total in the CV to activate those functions. This will
only affect the functions when it is in an Advanced Consist and not when it is
operating as a stand alone locomotive or other consist modes.
Advanced Consist Function Group 1
CV# F1 F2 F3 F4 F5 F6 F7 F8
21 1 2 4 8 16 32 64 128
Advanced Consist Function Group 2
CV# F0* F9 F10 F11 F12 F13 F14 F15
22 1 2 4 8 16 32 64 128
Advanced Consist Function Group 3
CV# F16 F17 F18 F19 F20 F21 F22 F23
109 1 2 4 8 16 32 64 128
Advanced Consist Function Group 4
CV# F24 F25 F26 F27 F28 F29 F30 F31
110 1 2 4 8 16 32 64 128
ADVANCED CONSISTING - FUNCTION CONTROL
Loksound vs DCC
*For FRONT only to operate, enter 1. For REAR only to operate, enter 2.
@ 2023 ESU Electronic Solutions @ 2023 ScaleTrains.com, Inc.

16 16
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ScaleTrains.com, Inc. (ScaleTrains) warrants products purchased from our website to
be free from defects in material and workmanship for a period of two (2) years from
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ScaleTrains warrants products purchased from an authorized Select Retailer to be free
from defects in material and workmanship for a period of one (1) year from the date
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product within 30 days of purchase on our website at www.ScaleTrains.com/warranty.
Be sure to retain the receipt as proof of purchase as it may be required in the event
your model requires warranty service by our Service Center.
If the product fails during the limited warranty period, carefully pack the model in the
original packaging. Be sure to include an explanation of the issue(s) along with your
name, address, phone and email. If the product(s) were purchased from a Select
Retailer, include a legible copy of the sales receipt.
Ship item(s) for repair to our Service Center at...
ScaleTrains Service Center
4901 Old Tasso Road NE
Cleveland, TN 37312
We recommend using a trackable shipping service. Shipping damage incurred on
the way to our service center and costs associated with shipping are not covered
under warranty.
Damages due to improperly storing, handling, or packaging are not covered under
warranty.
If ScaleTrains.com deems the product to be defective, we will either (1) repair (2)
replace the item, or (3) offer a store credit redeemable at ScaleTrains.com toward a
future purchase. This determination is at the sole discretion of ScaleTrains.
ScaleTrains has the final decision on all warranty matters. The warranty policy is
subject to change without notice.
SXT81636 • Rev 3-23 • ESU V5 Decoder