KB257 DH165L0 - Current Regulator Bypass

The DH165L0 decoder F0F and F0R headlight functions are factory configured with an onboard current regulator for the factory-installed low voltage bulbs (or LEDs) when using a maximum DCC track voltage of up to 16Volts. To bypass the current regulator and use 12V to 16V lamps with the DH165L0 on F0F and F0R, bridge each of the two pair of solder pads as shown on the back side of the decoder in the figure below. The circuit board is marked with F and R adjacent to the soldering points. Bridge between the two F points for a higher voltage bulb ...

KB259 DH165L0 - Installation Instructions

DH165L0 fits Life-Like GP7, SD60 and many other locos with Life-Like DCC medium plug arrangement. 1. Remove locomotive shell, noting the orientation of the circuit board inside. (See Figure 1) 2. Unplug the the manufacturer’s DCC socket from the pins on the factory board. Remove the two screws that hold the board in place. (See Figure 2) Lift out the factory board and save the two screws for future use. 3. Insert the locomotive’s DCC socket onto the pins on the Digitrax DH165L0 decoder board. In this orientation, Pin 1 (the orange wire) is the lower left pin and Pin ...

KB8 DN143IP - Con-Cor M10000 Installation

The image above shows the “M-10000 Coach Car B” for the N scale Con-Cor M-10000, which is the 1st car behind the loco. If you look closely, you can see the holes in the underbody, above which a speaker can be mounted for a sound decoder installation. The recommended Digitrax sound decoder would be the Digitrax SFX0416, but to use this decoder, one or more of the seat sections as shown below will need to be removed. There is a pocket that is designed for a speaker above the underbelly and under the center section of seats. The speaker that comes with ...

KB270 Broadway Limited Locomotive Shuts Down Zephyr

I have a Broadway Limited Import diesel locomotive equipped with factory DCC and Sound. Every time I turn on my Digitrax Zephyr DCS50 the engine starts to short out. It begins to slow down and then jerks a little and sometimes it stops completely. My Zephyr shows a line of flickering zeros across the dial and the engine decoder number even flickers on and off at times. I have checked all terminal connections and for foreign matter on the track but have not had any success in solving the problem.I have taken all cars off the track to make sure ...

KB17 DN143K2 - Installation Instructions for Kato N RDC's

Photo Courtesy Kato, USA Installation Instructions: The DN143K2 cannot be tested prior to installation in the rail diesel car. 1. Carefully remove the shell from the RDC. Carefully remove the plastic casting from the bottom side of the RDC frame, using a flat bladed screwdriver to pry it loose. 2. Gently remove the white clip that holds the seat panel in place. Remove the seat panel by pushing up gently from the bottom of the frame. The seat panel has clips underneath that are very easy to break, so be careful. 3. Take extra care to notice how the RDC ...

KB531 MRC AD310 Mobile Decoder

Q:  Using Digitrax systems to program an MRC AD310 decoder is especially confusing because the MRC Command 2000 uses several "switches" and "levers" rather than standard CV numbers. A conversion chart for the 10 possible MRC engine addresses would be a wonderful help to us old-timers. A:  The documentation available from the manufacturer of this decoder is incomplete. Many older decoders such as this one are not able to recognize all the digital packets in use by more modern DCC Systems. What we have learned is the MRC AD310 is: Programmable up to 127 (1~127) locomotive addresses Programmable for either 28 or ...

KB278 Marklin Z-Scale

I have an extensive collection of older (15-20 years) Z-Scale Maerklin equipment. Can I convert the locos to Digitrax, or must I buy some other brand of loco to use Digitrax? Maybe yes, maybe no. It depends upon the size of the locomotive. We are aware of several European Z-Scale model railroads that use Digitrax. We also know of a very large Z-Scale railroad in Washington, DC that uses Digitrax. This particular railroad is a model of Swiss prototype, so the locomotives are all electric-types; there seems to be enough room inside for a decoder, especially the new DZ125 series ...

KB279 Button Control of Kato Turnouts

I have my Kato Switches hooked up to a standard switch panel with toggle momentary switches. Can I hook up the DS51K1 stationary decoder in addition to this wiring? In other words, if hooked up the DS51K1 to the Kato Switch Machine that was already wired to another source to throw the switch, would the momentary power damage the decoder when it is operated by the standard control panel? I would like to operate these switches via DCC and by the control panel. In this situation, it would appear that using a DS64 configured for Kato turnouts (solenoid turnouts) and ...

KB280 Matching Speeds inside a consist

How do I get all the engines of a consist to run at the same speed? I have 3 engines with DH163A0 decoders and one with a MRC sound decoder. All units have the same top speed, but the unit with the MRC decoder starts and accelerates more quickly. Getting a group of locomotives to operate at the same speed can be a challenge. Experience has proven that it is best to work with the slowest locomotive and bring the other locomotives into agreement with that engine. Since the others appear to be in general agreement, it would be the ...

KB538 Capacitors in Bachmann's Spectrum Steam Locos

Q:  I have seen notes several times where the author recommends removing the capacitors that are in the Bachmann circuit boards before installing a DCC decoder. Can you comment on the need for this? Is it universal for the Bachmann steam locos? A:  As a rule, all capacitors must be removed from locos before installing decoders. Also, any choke coils must be removed, too. Both capacitors and choke coils cause problems with DCC signals. If you are unsure, a Google search for the locomotive type and the term "DCC" often produces an article specifically about the locomotive installation in question.

KB33 Programming Soundtraxx Tsunami Decoders with Digitrax Zephyr

Zephyr Xtra (DCS51) and Zephyr (DCS50) systems can program Soundtraxx Tsunami decoders using Blast Mode Programming on the Mainline.  Blast Mode Programming will program EVERYTHING sitting on the main line track so, you MUST remove everything from the track that you are not programming or use an isolated piece of track connected to Rail A & B. NOTE: Track power must be ON during Blast Mode Programming. You will not be able to read back CVs using Blast Mode Programming.  To use Blast Mode Programming with Zephyr, close Option Switch 7. 1. Press the "PROG" key. 2. Press the "SWCH" ...

KB549 Trix HO Mikado Steam Locomotive CV Settings

The following CV settings have been found to give great performance from the Trix Mikado. These settings were discovered by Norm Stenzel after much trial and error.  Once the loco was set with the following CV values this locomotive operated very nicely with the sound synchronized to its movement. CV 2 = 4         Default Value = 4      START VOLTAGECV 3 = 0         Default Value = 8      ACCELERATIONCV 4 = 0         Default Value = 6      DECELERATIONCV 5 = 35       Default Value = 64    MAX VOLTAGECV 6 = 20       Default Value = 22    MID POINT VOLTAGECV 29 = 6      Default Value = 4      CONFIGURATION ...

KB294 Kato RDC Headlights Reversed

There have been reports of headlight problems with some DN143K2 decoders; the unit will be running in one direction but the headlights are backwards. There is a simple fix for this problem. Set CV33=2 and CV34=1; this will remap the function outputs F0F and F0R.

KB553 Compatibility of Atlas Bachmann Soundtraxx Decoders with Digitrax

I have Diesels with Atlas sound or decoder, Bachmann EZ command and Soundtraxx decoders. Will the DCC Super Chief work with these decoders? Yes. Because the Atlas, Bachmann and Soundtraxx decoders are DCC compatible, they will work with any Digitrax system. There may be a issues related to programming with these decoders that require special attention. Please consult the decoder instructions for the particular locomotive to determine if any special steps are necessary in your particular situation.

KB43 DS51K1 - Special Notes on Kato Double Crossover 20210

Kato makes a Unitrack double-crossover, their No. 20210: Kato has advised us that this unit has four solenoids in its base, each operating one turnout point set. Connecting the DS51K1 to the red / black wire pair at the base of the track will damage the decoder since the four solenoids of the crossover will draw more than the rated current capacity of the DS51K1. If you are wiring the DS51K1 internally to this track segment, it is easiest to program each turnout pair to the same address; done this way, activating one track switch address will result in the ...

KB304 Kato RDC's and DN143K2

Photo Courtesy Kato, USA The DN143K2 replaced the earlier DN122K2 as a custom decoder designed for the Kato RDC in N-Scale. This is not a particularly easy installation and there have been some reports of problems with the headlights. Paul Lator has some experience with this installation, and this may be of help to you: "The wiring with the DN143K2 works well if you do not route the wires over the top of the seating in the RDC, rather completely disassemble the unit, mount the decoder in it's designated location then run the wires through the drive shaft tunnels. Place ...

KB888 Installation of Digitrax Decoders in HO Scale Atlas RS1, RS3, RSD4/5

Many thanks to Bob Dattore for this application note!This app note details using a DN142 decoder for the installation.  This decoder is no longer in production but the following decoders would work as well:  DN135D, DN163, DZ123, DZ125, DZ143.  Any decoder that is small enough to fit could be used.The Problem:  Atlas RS1's (and RS3's & RSD4/5's) are hard to install Digitrax decoders in. There is no easy drop-in or light board replacement with back-emf capability.I have installed several Atlas Dual Mode decoders in these popular hard to fit narrow, low hood diesels with ease, by replacing the original light ...

KB312 DH165A0 - Light Bulb Problem with Athearn

I have a DH165AO decoder and Sound Bug and am installing the decoders into an Athearn SD70 Locomotive.The motor controller works and the sound as well. However, I am unable to get the lights to work. I connected the wire leads exactly as they where on the Athearn light board. Athearn uses twin forward and rear 1.5 volt lights yet the DH165AO will not power the bulbs. It will power one bulb at either end but not two. The single bulb setup glows very brightly but for a short time. So I tried using the 47 ohm resistor in parallel ...

KB64 Walthers/Life-Like F7

Application Note: Walthers/Life-Like F7 H0-Scale steps needed for the DH163D DH123D decoder installation. Remove packing protectors screwed to coupler pockets: Carefully remove shell by spreading sides at side windows: Here's an alternate method for removing the loco shell - our F7 unit had a particularly stubborn shell. In place of the X-acto knives pictured, we recommend toothpicks or something a little safer.. Remove DC Plug (or a DC Printed Circuit Board in this case) from the wiring harness: DC Plug shown removed: Plug DH123D or DH163D decoder to 9 pin wire harness and mount it as shown: Reinstall loco shell.

KB65 Atlas HO HH 600/660 Installation

Steps needed for the DZ125PS or DZ143PS decoder installation: Remove couplers and carefully remove loco shell to reveal the 8 pin dummy (DC) plug. Remove 8 pin dummy (DC) plug [picture shown with plug removed]. Plug in the DZ125PS or DZ143PS with orange wired #1 pin in pin with triangle marked pin. Detail of DZ125PS or DZ143PS with orange wired #1 pin correctly oriented. Tuck decoder in cab area of loco, replace shell and reinstall couplers.

KB578 Using MRC RailPower 1370 with Zephyr Xtra Jump Ports

Q:  I have an MRC RailPower 1370 DC power pack.  I was wondering if that would work as a jump throttle on my Zephyr till I get my UT4 LocoNet Throttle? A:  We think that the answer is "No", but you will need to verify whether this power pack produces pure or pulsed DC power directly with MRC. Throttles used with Zephyr Xtra via the Jump Port must produce pure DC power, often referred to as "smooth" power packs. Many "advanced" analog power packs use automatic pulse injection to make model locomotives run better at slow speeds. This uses 1/2 wave AC ...

KB583 Programming output voltage and Bachmann decoder programming

Q:  I have a Digitrax Chief system. I wired the programming track as per the manual, using PROGA and PROGB outputs on the DCS100. I turned on the system and checked the track voltage with a Tony Trains RRamp meter, the mainline read 14.2 volts. The programing track did not read anything. I then checked the two wires coming from the DCS100 and they did not have any readable signal. A:  The programing track connected to PROG A and PROG B will NEVER have track power on except the very instant the program message is sent.  So, you would not ...

KB866 DZ121 - Compatibility with Easy DCC, MRC or Lenz

The DZ121 was discontinued in 2002.  There were some interoperability issues with Easy DCC, MRC and Lenz.  The exchange offer is no long valid.  This article is still published for reference only.At that time, Easy DCC, Lenz and MRC users could return DZ121's to Digitrax for no charge replacements that will work on their systems. There was no reason for Digitrax, Wangrow or NCE users to replace any DZ121 decoder unless they wre having problems.The text at that time:For Easy DCC and Lenz users who are having problems: To determine whether your DZ121 should be returned, read back CV07. A ...

KB591 MicroTrains Z-Scale GP35 Installation Instructions

1. Carefully remove the locomotive’s shell from the frame. Notice the orientation of the shell for reinstallation. 2. Carefully remove the motor springs with tweezers. Store these springs in a safe place for later re-use. 3. Slide the factory light board forward to release it from under the clips on the locomotive frame. Be careful not to distort the frame clips as you slide and lift the light board off the frame. 4. Take the DZ123M0 decoder (noting the correct orientation of the frame pads) and slide underneath frame clips as indicated in the Figure 3. You will need to ...

KB594 Is Digitrax signaling and detection equipment compatable with other DCC systems?

Q: I have a Lenz Set 100 and was wondering if I can use my DCC system and use the Digitrax signaling and detection components. What about other DCC systems?A: Yes, Digitrax detection and signaling will work with any DCC system.  You will need to install a LocoNet network for the LocoNet components to communicate with each other and use a PR3 or MS100 to interface with a computer running software such as Railroad and Co. 

KB341 Bachmann DCC Turnouts

To program Bachmann's E-Z Command® Decoder-Equipped DCC Turnouts follow these steps: 1. Connect the turnout (or wye or crossover) to a powered section of track (Rail A & B)2. Verify Track Power is on.3. Press and hold the programming button of the E-Z Command® turnout/wye/crossover until switch toggles twice (release programming button).  The turnout is now in programming mode. 5. Press Switch button on the Throttle. 6. Select the desired address on the Throttle (1-100 for this device). 7. Press OPTN button if using a DT40x series Throttle or the CV-WR key then the EXIT key on a DCS50/51.  The ...

KB598 Z-Scale decoder installation?

I have an extensive collection of Z-scale locomotives (some are older (15-20 years) Z-Scale Maerklin equipment).  Can I convert the locos to Digitrax, or must I buy some other brand of loco to use Digitrax?Maybe yes, maybe no.  It depends upon the size of the locomotive and how much space is inside.There are several Z-Scale layouts that use Digitrax decoders.  Z scale railroaders are very persistent and precise so, they are often able to install decoders where members of other scales would fear to tread.  Digitrax continues to design smaller and smaller decoders aimed at the Z scale market.  Z Scale ...

KB92 Installation in a Walthers Trainline GP15

Our thanks go to Digitrax operator Aksel Suarez of Chesapeake, Virginia for sending this tip on how to install a Digitrax decoder in the Walthers GP15, called by some prototype railroaders a "Geepette" or "Cheep Geep". Use a DH165A0 decoder to replace the existing light board. Remove the plastic clips that hold the wires to the light board. Once the light board has been removed, place a piece of electrical tape on the metal frame to isolate the decoder from the frame and prevent a short circuit. The wires on the locomotive to the motor and lights do not follow ...

KB350 Older Proto 2000 Geeps

Do you have a reference for wiring Proto 2000 older geeps with a decoder (not necessarily sound)? We actually have several Life-Like Proto's sitting around for conversion to DCC, including an older GP-18, older FA's and such that date back to the days when DCC was just a twinkle in AJ's eyes. Overall, converting these locomotives will be fairly easy but there are a few things to watch for. Make sure that the decoder has enough capacity to match the current demands of the locomotive mechanism.  You must measure the stall current of the locomotive to determine this.   Make ...

KB351 Broadway Limited - Blueline Locomotives

Overview: Broadway Limited has issued a new line of H0-Scale locomotives called "Blueline". These locomotives are equipped with sound decoders that can be operated in a conventional Direct Current environment. They also are fitted with an 8-pin DCC Medium plug to allow for conversion to a DCC operating environment. Among other decoders, Broadway Limited recommends using our DN143IP mobile decoder for this purpose. Converting these locomotives is simple, but programming a 4 digit address can be a challenge. BLI has a support page which indicates that changing the locomotive address and other CV's can be done in OPS Mode (also ...

KB97 Athearn N-Scale FP45 / F45

What Digitrax decoders work in the new Athearn N scale FP45? We recommend the DN163K1C, following the procedure below. One of our editors was able to successfully install both the Digitrax DN163K1B and DN163K1C decoders in the unit. We have determined that the chassis design requires that the decoder be installed backwards. The only problem this poses is that one additional step has to be taken when programming. Both the DN163K1B and DN163K1C decoders are the same footprint with the exception of the LEDs. The DN163K1B has T-1 3mm LEDs and DN163K1C has surface mount LEDs. When the K1B version ...

KB354 Programming MRC Sound decoders in OPS mode ('on the Main') using Hexidecimal conversion for CVs 17 and 18

Editor's Note: This tech note has nothing to do with Digitrax SoundFX sound decoders. This is for users who have Digitrax command stations / boosters / etc and wish to program MRC sound decoders. --------------------------- Due to low programming track power in certain dcc systems, programming sound decoders on the program track may not be possible, especially trying to assign the decoder a four, (4), digit address. This programming procedure has to be performed on the mainline, where more power is available for programming sound decoders. If your dcc system allows simple 4 digit address programming on the main, [ops mode ...

KB356 DH165A0 - Headlight brightness

I am installing a DH165A0 in an Athearn SD70. The head light outputs are a nominal 30 ma (with the link cut). The bulbs were of course a bit lower in their current demands and were very bright for a short while. Is there any way to lower the current output from 30ma or do I need to add a resistor in line with the bulb to drop the voltage output? Of course if it is supposed to be a regulated current output this might be a problem. The DH165A0 has a constant current source for F0F and F0R, so ...

KB114 DZ143PS and Seuthe Smoke Units

Your DZ143ps decoder has been suggested for my Broadway Limited Blueline PRR J1a. I want to install a Seuthe smoke generator (#100 10-16v,120ma), which was recommended. I don't want to connect it directly to the track power because it will run all the time. Is there a way to connect it to DZ143PS so I can turn it on and off? Yes. The DZ143 series have a total of four function outputs, two are for the front and rear headlights and two are for additional functions. F1 controls the green wire output of the decoder, F2 controls the purple wire ...

KB871 Keller SU1990 Sound Unit with Digitrax Decoders

You can easily control sound units like the Keller SU1990 by using the function leads on Digitrax Decoders and DCC command station that can control decoder functions. These instructions for connecting a Keller Engineering Diesel Sound unit to Digitrax DH83FX & DH140 series decoders was writtne many years ago.  Any modern Digitrax decoder with 4 function leads can be used. Equipment Needed:1) A Digitrax Throttle, Booster/Command Station or other DCC command station capable of controlling decoder function outputs.2) Any Digitrax decoder with at least 4 function leads will work here.3) The locomotive you wish to convert, be sure to check the ...

KB872 Marklin 6027 Command Station Using Digitrax Boosters

This Application note shows how Marklin Users can have the power and reliability of Digitrax boosters along with their Marklin command stations! Notes: 1. Before applying power to the booster, use a short length of wire to short the 2 gray terminals (SYNC & GROUND) on the DB100. This forces the DB100 into the booster mode when the power is applied to it. Set the MODE switch to "P/R" for auto reversing operation or to "RUN" for normal booster operation. 2. Make a cable with 6 conductor RJ12 cable with a 6 conductor male plug on the DB100 end and ...

KB873 Lenz LV100 Booster with LocoNet

Note: Upgrading to Digitrax from Lenz doesn't have to mean purchasing all new equipment! This app note shows you how to salvage some of your Lenz equipment when you move up to Digitrax!

KB362 Atlas DCC Decoder Programming Problem ("d nd") on DCS 50

  My Atlas DCC N-Scale locomotives that are equipped with factory installed Lenz062xf, Lenz063xf decoders will not program using any mode on Program track. I know the system works because I can easily program every Digitrax decoder loco that I have, but if I put an Atlas DCC factory loco on the programming track I get the 'd nd' error code.   There are decoders now present in the market that do not draw enough current for the programming track to reliably detect that they are present, hence the error report of "d-nd". All you have to do is to ...

KB107 Con-Cor N-Scale Aerotrain Decoder Installation

Application Note: Steps needed for installing the DN143IP mobile decoder into the Con-Cor N-Scale Aerotrain "DCC Car". The image above shows the “DCC Car” for the N scale Con-Cor Aerotrain, which is the 1st car behind the loco. It shows the holes in the underbody, above which a speaker can be mounted for a sound decoder installation. The recommended Digitrax sound decoder would be our SFX0416, but to use this decoder the seats will need to be removed. There is a pocket that is 16mm wide, 36mm long and 3mm deep designed for a speaker above the underbelly and under ...

KB876 Roco Digital Crane with Digitrax Throttle

This crane is fully controllable by your Digitrax system. The crane itself turns 360 degrees, the boom raises and lowers, the hook raises and lowers. An electromagnet and searchlight are optional and can also be controlled from your throttle. Only one can be used at a time, but they both come in the same package.Here is a step by step guide to using it with your Digitrax system.The decoder has an address of '08' and is a 28 speed step decoder - selecting the crane requires doing what is known as a "status edit". Hit SEL, turn a knob to ...

KB877 Programming the Digitrax DA120 Decoder Installed in Atlas Locos With Wangrow and Lenz Systems

This application note concerns the DA120 deocder, which began production in 1997 and was discontinued around 2000. The DA120 decoder that is being shipped with the Atlas locomotives has certain variables that are available for programming. These guidelines are provided for those who are using the Wangrow or Lenz systems for programming the DA120 decoders.The following variables were selected by Atlas to be offered in the DA120. These CV's are available to be programmed on the DA120:    * CV01 - Address    * CV02 - Start Voltage    * CV03 - Acceleration Rate    * CV04 - Deceleration Rate    * CV05 - Maximum ...

KB878 14, 28 or 128 Speed Steps-Why?

This article was originally posted on this site in 2006, but the source material dates back much further than that, probably back to the early 1990's, when DCC was an emerging control system. The article discusses non-sound mobile decoder programming operations. Many of the issues discussed in this article are less relevant when using recently produced decoders, but this text still does cover some questions which may be raised when you are using mobile decoders which were manufactured by other companies. These decoders will operate in the Digitrax environment, but you may need to make some adjustments.The earliest Digitrax mobile ...

KB879 Broadway Limited Locomotives F9-F12 with Digitrax

Function Controls F9-F12 Not Responding Properly on Broadway Limited LocomotivesSome Broadway Limited Locomotives use Functions F0-F12 when running in DCC mode. In some cases F9-F12 do not respond properly. To remedy this problem, simply reset the locomotive to the factory default setting per the Broadway Limited Instructions you received with your locomotive.Note: F9-F12 are accessible on the DT400 & DT402 series throttles when used in conjunction with the DCS100 command station.

KB880 Installing Digitrax Wired Decoder in Kato N-scale AC4400CW

This article courtesy of Ken Bessler, concerning installation of a decoder into earlier Kato C4400W's.  Current produiction of these locomotives use DN163K1C or similar board replacement decoder.I wanted to convert my 2 new Kato AC4400CW's to DCC but there were several problems:1) The recommended PnP decoder, DN163K1a has a chip right where a shell component is. Using this decoder requires shaving off the plastic retainer clip under the exhaust stack. IMHO this is not good as it leaves too little support for the stack.2) My dealer was out of stock of the PnP decoders.3) A quick look inside the loco shows ...

KB625 Tower 55 DCC Equipped Locos- Testing a Four Digit Address Reset with DCS50 Zephyr

Testing for Tower 55 DCC Equipped Locos after 4 Digit address programming:Note these instructions are the same for both DCS50 Zephyr and DCS51 Zephyr Xtra1. Press the LOCO key on the DCS50. (The LED display should begin flashing)2. Enter the 4-digit address that was programmed in the procedure above using the numeric keypad. (The LED display should be flashing “####” with the # symbols replaced with the 4-digit address that was keyed in)3. Press the LOCO key on the DCS50. (The LED display should display “####” solid and the locomotive sounds should start up)4. Select FORWARD with the direction knob ...

KB882 Installation of Digitrax Wired Decoders in Bachman Plus HO ABA F7s

This note addresses the installation of an H0-Scale wired decoder into Bachmann Plus ABA F-7s; it calls for using a DH140, which has been retired.  Current decoders such as the DH123 or DH163 or similar wired decoders can be used. Just finished up doing a few HO Bachmann Plus F7's, ABA's to be exact. Thought maybe some of you might be interested in how the DCC conversion went on these.They are an easy conversion!1.  The full stall current for these ranged from 500-700 ma for each loco . I selected Digitrax DH140 for the A units and a DH120 for the B ...

KB627 Tower 55 locomotives-Programming a 4-digit address using Digitrax Zephyr Xtra (DCS51) or Zephyr (DCS50)

Note: The programming shortcut for 4-digit addressing outlined in the Digitrax Zephyr manual will not work to program the Tower 55 decoder in any programming mode on the Zeyphr throttle due to a programming timing issue with the DSC50. Please use the procedure referenced in this bulletin to access this feature.Note: If the DCS50 or DCS51 is being used as a command station with a DT400/DT400R throttle connected via the Loconet ports, then the programming shortcut for 4-digit addressing outlined in the DT400/DT400R throttle manual will work to enable the 4-digit address capability of the decoder when using the DT400/DT400R throttle ...

KB884 Wired Decoder Installation in Atlas/Kato GP30/35

These instructions detail the installation of a wired Digitrax decoder (a DN140 in this example, but many wired decoders may be used) into an Atlas GP35 manufactured by Kato prior to September, 2007.  These units are marked "Japan" on the bottom of the locomotive.  Units marked "China" use a board replacement decodr such as the DN163A2.Installation DiagramNotes:A. Be sure motor leads (Gray & Orange) do not touch frames & have protective insulation in place.B. Be sure frame is straight & mechanism is correctly reassembled & can turn freely without binding.Wired Decoder Installation InstructionsFollow these steps for decoder installation with either ...

KB885 Wired Decoder Installation for Athearn Locomotives

This installation covers how to install a Digitrax decoder with wires in any Athearn HO locomotive.  Use either our DH123 (headlight functions only) or DH163 (headlights plus additional functions) for this installation.*** Note: This installation is based on installing a Digitrax wired decoder in an Athearn Dash 9-44CW. The process is similar for any Digitrax mobile decoder with wires. The instructions are also easily applicable for any Athearn locomotive.These instructions assume that you have already run the loco and have established that it is working properly before beginning installation. Remember, installing a decoder in a locomotive will not improve its ...

KB886 Installation of Digitrax Wired Decoders in a Kato GP35 Diesel HO

Note: These instructions cover the hardwired installation of any Digitrax decoder with wires into a Kato GP35 H0 Diesel. Currently, the recommended decoder for current production GP35's from Kato are the DH163K0 board replacement decoder.  Using the board replacement decoders are much simpler and cleaner installation than the one described here.Tools Needed for Decoder InstallationYou'll need a few simple tools:1. A soldering iron, preferably temperature controlled.2. Solder3. Screwdriver4. Small diagonal cutters for cutting and stripping small wire5. TweezersMotor Isolation for Kato GP35Carefully remove the loco's shell and weight.To isolate the motor, disconnect the brass strips (motor brushes) from the track pick up ...

KB887 Digitrax Decoder Installation For PROTO 2000 E8/E9 in HO Scale

This installation procedure is for the DIGITRAX DH163/DH123 decoder. Alternatively, you can use a Digitrax DN142 in this installation. If you use the DN140 the installation will require fewer engine modifications because of the smaller physical size of the decoder.Note any decoder of smaller physical size can be used in this installation.  DN135D, DN163, DZ123, DZ125, DZ143 are all possibilities. After removing the shell from the locomotive chassis, note the color and location of each of the various wires.  All connections must be soldered with rosin core solder and insulated with shrink tubing.We will locate the decoder in the forward ...

KB120 Decoder Installation in the H0-scale Con-Cor Pioneer Zephyr

Application Note: Con-Cor HO-Scale Zephyr steps needed for the DZ125PS decoder installation Step 1: Carefully remove the body from the frame. There are four clips along each side of the body. (See red arrows) We have found if you start at the rear of the body with a small flathead screwdriver and carefully pry the body outward to remove the back clip, you can move the screwdriver forward to release the others. Once the body is completely removed, carefully lift the light board from its holders on the bulkheads. (See blue arrows) Be very careful as the pins that hold ...

KB890 Installation of Digitrax DH121 in Bachman Hogwart's Express

Many thanks to Dick Sutcliffe, Superintendent BR &T Railway Co. for this application note!Install the DN121 in the tender   1. The tender is easy to open by removing two screws so you can pull the decoder out and put in a plug when running on DC layouts.   2. Use a piece of styrene to raise the decoder off the weight.   3. Notch the front edge of the tender frame to bring the wires through to loco (all power pick up is in the loco).   4. Split the loco frame to isolate the motor brushes, remove the contact springs in the ...

KB891 LifeLike Proto 2000 Number Board Light Problems

Life-Like Proto 2000 locomotives with number board lights have the number board bulbs wired to their 8-pin DCC plug using pins 4 and 5. This causes no problems with DC operation but causes a path from the rail pickup to the gray motor lead when a decoder is installed resulting in erratic operation and decoder failure.This is a known problem in the Proto 2000 GP60, SD60M and LifeLike GP38-2.  The DH165L0 uses a current limiter set to control one incandescent bulb on the front (FOF) and one on the rear (FOR) and putting the removed number board bulb on either ...

KB124 Kato DD51 Installation of DN163K1D

Kato N-Scale DD51 steps needed for the DN163K1D decoder Carefully remove the DD51 locomotive shells (3) and gray plastic light board retainer from the frame. Carefully remove the factory light board by sliding it toward the back of the locomotive and out from under the forward frame notches. Then gently lift the board out of the frame. Be careful not to bend or damage the motor tabs. Place one or more layers of Kapton tape on the frame underneath the forward frame clip. Carefully remove the motor tabs from the factory light board. The motor tabs attach to the board ...

KB125 Kato GG-1 Decoder Installation of DN163K1D

Kato N-Scale GG1 steps needed for the DN163K1D decoder Carefully remove the locomotive’s shell and light board retainer from the frame. Notice the orientation of the light board inside so that you can install the new decoder in the same orientation. Carefully remove the factory light board by sliding it toward the back of the locomotive and out from under the forward frame notches. Then gently lift the board out of the frame. Be careful not to bend or damage the motor tabs. Carefully remove the motor tabs from the factory lightboard. The motor tabs attach to the board with ...

KB894 Proto 2000 E6/E7 Mars Light Installation

Remove the 8 pin dummy plug from Lifelike Proto 2000 light board.Before installing the decoder in the locomotive, unsolder the yellow wire from pin 2 and re-solder it to pin 3 (empty pin) on the decoder harness plug board.  We strongly recommend that you mark the decoder and/or harness so that you will remember that you have modified it.  If you use the decoder and/or harness modified in this manner in a different locomotive, your lights will not work correctly. Plug the decoder and harness into the light board in the locomotive.Program CVs as follows:  CV33 = 001, CV34 = ...

KB896 Athearn Genesis SD70-Adding A Decoder and Setting Up Ditch Lights

Athearn Genesis SD70s came factory equipped with a Digitrax designed light board. The board is NOT a DCC decoder. If you want to add a decoder and have alternating ditch lights the following steps are recommended: 1 - Remove locomotive shell; 2 - Remove dummy nine pin plug from wire harness and insert Digitrax DH163D on the harness; 3 - Remove the wires of one of the ditch light bulbs from F1N and F1P and solder them to F2N and F2P; 4 - Program CV51 to 106, CV52 to 107 and CV63 to 40. 5 - Reinstall locomotive shell.F2 on ...

KB385 Compatibility of LOK Sound decoders with Digitrax

I have a DCS50  Zephyr system.  I'm having a great deal of problems with it when I try to run (2) loco's equipped with LOK SOUND and DCC decoders (by ESU).  What happens is that it cuts in and out 3 to 5 times on each revolution of the train. I see it cutting out on turnouts sometimes, but not on straight track.  And sometimes when the loco's are on a hard pull, like at a sharp uphill curve.  When they cut out it just isn't the loco's, but the entire railroad.With the addition of the sound electronics, power consumption ...

KB386 DS64 - Kato Unitrack N-Scale Automatic Crossing Gate & Three Color Signals

Q:  Is it possible to use Digitrax equipment to wire the Kato N-Scale Automatic Track Crossing? If so, how do I do it? A:  The answer is a probable "No", but there may be a workaround. The Kato, USA website notes: Some Unitrack components such as the Automatic Crossing Gate and 3-Color Signal were designed with DC operation only. So, the official position is that that these devices don't work in the DCC environment. However, we are not above speculating on how to do this, nor are others. An online web search turned up this bit of message traffic by ...

KB131 DCC Install in Bachmann Dash 8

How to add DCC to the new run of Bachmann DCC ready Dash 8-40CW? The current recommendation is for direct soldering, using either DZ125, which controls headlights only or DZ143, which controls headlight and two additional functions. With earlier units, either milling of the frame or a replacement frame was necessary, but the new units have a "DCC ready frame"; the source of this information also points out that Bachmann is using the same model number for both the older version and the newer version, so you should make certain that you have the recent version.

KB388 DZ121 for the N-Scale Life-Like SW1200

Prior to Disassembly Test the Decoder All Digitrax decoders are tested for proper operation before they leave the factory, but sometimes strange things happen. Therefore to insure your decoder is covered under our warranty policy, please give it a thorough test BEFORE you cut the wires. Test Run the Locomotive Be sure it runs correctly in both directions with no unusual noises or binding in the motor-gear train. If it checks out OK, then: Get Ready Before you start, get your tools and supplies together for this project. You will need the following items: DECODER TESTER - Such as the ...

KB138 Installation of DN143IP in Con-Cor N-Scale 4-8-4

The installation will be in the tender of the Con-Cor 4-8-4 locomotive. 1. Carefully remove the tender’s shell from the frame. 2. Remove the factory installed DCC dummy plug. (See photo below) 3. Insert the DN143IP medium plug pins in the socket. Pin 1 will be the bottom right socket when viewed. (See photo below) 4. Replace the tender shell. It may be necessary to trim the underside of the tender top to allow it to snap into place. 5. You are now ready to run your locomotive. The DN143IP is factory programmed to address 03. You can easily customize ...

KB397 Installation of DN163K2 in Kato RS2 Locomotives

The DN163K2 will fit into the Kato RS2 and RSC2 locomotives with the same frame design. Installation for the Kato N scale SD90/43MAC is also similar.  Kapton tape should be applied in the saddle area of the frame above the motor to prevent shorting. Install the DN163K2 decoder into the frame by tilting it slightly as you insert the front corners into the forward frame clips. Press the decoder motor clips down over the motor contacts and slide the decoder board forward and press the board down into the frame. Be careful not to bend the motor contacts or let ...

KB398 Installation Instructions - Kato Nscale SD90/43MAC Locomotive

1. Carefully remove the locomotive’s shell from the frame. Notice the orientation of the light board, so that you can install the new decoder in the same orientation. 2. Carefully remove the factory light board by sliding it toward the back of the locomotive and out from under the frame clips. Then gently lift the board out of the frame. Be careful not to bend the motor contacts. Apply a small piece of Kapton tape to saddle area of the frame above motor. 3. Install the DN163K2 decoder by angeling it slightly as you insert the front corners into the forward ...

KB399 Installation of DN163K2 in Kato RS2 Locomotives

The DN163K2 will fit into the Kato RS2 and RSC2 locomotives with the same frame design. The decoder is also installed using these same steps in the SD90/43MAC. Kapton tape should be applied in the saddle area of the frame above the motor to prevent shorting. Install the DN163K2 decoder into the frame by tilting it slightly as you insert the front corners into the forward frame clips. Press the decoder motor clips down over the motor contacts and slide the decoder board forward and press the board down into the frame. Be careful not to bend the motor contacts ...

KB400 Life-Like N-Scale RS2 Modifications needed for the DN163K2 decoder

The Life-Like RS2 locomotive frame is approx 1mm wider than than the Kato design for the RS2. Accordingly, special care must be taken to assure the loco frame does not come in contact with the DN163K2 decoder contacts. Please refer to the pictures below for details on the modification: Cut a piece of Kapton tape approx. 1/4" square and position it on an Xacto® type knife, small screwdriver blade or other similar tool.  Place the tape underneath the loco frame as shown above. A top view of the correctly placed tape. A side view of the correctly placed tape. Remember ...

KB401 Life-Like N-Scale GP18 Modifications needed for the DN163K2 decoder

The Life-Like GP18 locomotive can be modified to accept the DN163K2 board replacement decoder. The locomotive samples used by Digitrax for this instatllation needed to have the frame engagement clearance slots under the cab on the fireman-side widened about 1mm towards the rear of the locomotive (long hood end). This can be done with a small file or Dremel type tool, to allow the decoder to properly engage the casting with the power tab on this side. The engineer-side slots are OK to fit the decoder power pickup tab on this side. Be sure to check the motor tabs are safely ...

KB147 DZ125IN - Installation Instructions

1. Carefully remove the locomotive’s shell from the frame. Notice the orientation of the shell to the frame so that you can reinstall correctly. 2. Remove the 6 pin analog shorting plug and in its place insert the DZ125IN decoder with the correct pin-1 orientation. (There also is a small numeral "1" on the bottom of the DZ125IN near pin-1.) The DZ125IN has 6 pins that insert directly into the 6 pin socket (NEM 651 type) on the locomotive’s PCB. The DZ125’s small size allows the decoder to be easily installed in a variety of European locomotives. For the Kato ...

KB363 DZ123 in older Athearn Locomotives

Your Athearn example uses the DH123/143 series with the AT clip option, can the DZ123 be used for Athearn older diesels? I am interested because of the small space in S2/4 models. Is the 1 amp DZ123 an option I can use? It is possible that the DZ123 could be used in the older Athearn switchers, but the most important issue will be how much electrical current that the locomotive requires. If the locomotive's stall current is below 1 amp, then the DZ123 can be used. Otherwise, the locomotive motor will eventually, sooner or later, destroy the decoder by drawing ...

KB160 Rotary Beacon for Athearn MP15 with DH163AT Decoder

I have a Athearn HO Scale MP15 Soo Line and have installed a DH163 decoder. How do I get the rotary beacon to flash? Function Outputs on the DH163AT The DH163AT is set up at the factory to control six function outputs. The DH163AT is configured to control the forward and reverse lights on the locomotive through the yellow lead and white lead using Function 0 (F0F-forward yellow and F0R-reverse white) for directional lighting. Functions F1(green) and F2 (violet) are part of the harness for easy hookup. F3 and F4 are also available on the decoder board. These can be ...

KB418 Bachmann EZ Command Compatibility

I used now an Bachmann EZ Command and I will turn to Digitrax because my layout grow to fast, can I use my engine (Bachmann decoder)with an Zephyr starter set.Bachmann's site says that EZ Command is a DCC system, so you can use your decoder equipped Bachmann locomotive with any DCC system, including DCS50 Zephyr.

KB163 Using Broadway Limited Locomotives with Digitrax - Function Controls F9-F12

Function Controls F9-F12 Some Broadway Limited Locomotives use Functions F0-F12 when running in DCC mode.  In some cases F9-F12 do not respond properly.  To remedy this problem, simply reset the locomotive to the factory default setting per the Broadway Limited Instructions you received with your locomotive. Note:  F9-F12 are accessible on the DT400 throttle when used in conjunction with the DCS100 command station.

KB881 Installation of Digitrax Decoder in Bachmann G Scale Shay

This article courtesy of Ross Webster, which dates from an earlier era before Bachmann made accommodations for DCC installs:There may be others ways do to this conversion, but this is the way I found using the Digitrax DG380 (any DG wired decoder can be used for this installation) DUE TO SOME OF THE FRAGILE ITEMS ON THE SHAY I WORKED ON A FOAM PAD SO THERE WAS NO DAMAGE TO ANY OF THE SMALL PARTS.I first tested the electrical items and made the following determinations.Free running for the two trucks was .8 amps, total. Stall, was 4.6 amps total for both trucks. Smoke ...

KB936 Marklin 6032 Command Station

To harmonize with NMRA’s “RP 9.2.3” programming RP, the DH140 and subsequent Digitrax decoders do not implement the “legacy” {F9} decoder interrogate instruction. Note that this will not allow correct “address” read back on Marklin 6032 and older revision Lenz programmers that use this older {F9} instruction, and not physical register 1 read back. Note that even though the read back will fail with no confirmation, you will always be able to write a new value correctly.

KB937 Lenz Command Stations Read Back

To harmonize with NMRA’s “RP 9.2.3” programming RP, the DH140 and subsequent decoders do not implement the “legacy” {F9} decoder interrogate instruction. Note that this will not allow correct “address” read back on Marklin 6032 and older revision Lenz programmers that use this older {F9} instruction, and not physical register 1 read back. Note that even though the read back will fail with no confirmation, you will always be able to write a new value correctly.

KB875 Lenz Systems Using Digitrax Boosters

You can have the power and reliability of Digitrax boosters even if you use a Lenz Command Station. You can use Digitrax boosters to automate reverse loops, too. Digitrax boosters can be used with the Lenz Command Station to provide more power for driving the layout. Many customers are using DB150, DB200, or DB100 series boosters instead of LV100's because the DB150’s & DB100's are very reliable 5 amp boosters with plenty of heat sinking capability to prevent heat related booster shutdows. Equipment needed: 1) A Lenz LZ100 Command Station. 2) A DB150, DB100 or a DB200 series booster. 3) ...

KB626 DCS50 Zephyr 4 Digit Address Worksheet

For Tower 55 and other locomotives that require 4 digit address to be programmed using CV17 & CV18 instead of the normal Digitrax Throttle Automated method.To determine the values to program into CV17 and CV18, please complete the following worksheet before beginning the 4-digit address programming procedure.1. Write the 4-digit address to be programmed into the decoder here: _____________2. Take the 4-digit address from step 1 and divide by 256. (Result from step 2 = ____________)3. Take the digits to the left of the decimal point in the result from step 2 and add 192. (Result from step 3 = ...

KB883 Installation of Digitrax Wired Decoder in Bachmann Spectrum N Scale F40PH

This application note is courtesy of Michael K. Perrin, and addresses the installation of an N-Scale decoder in the Bachmann F40PH (now discontinued).  This note calls for using either DN93 or DN140, both of which have been discontinued.  Current decoders such as the DZ125 or DZ143 and other similar N scale decoders can be used.1) Cut a place for the decoder in the back recess in the frame. Because this is a "sandwich" frame there is no room for the decoder without using a saw or Dremel tool to make a cavity for the decoder. (This is the hardest part of the ...

KB560 Broadway Limited F7 Loco-Which decoder fits?

Q: I have 2 Broadway non-sound F7 DC locos. I bought 2 DH163IP decoders for them. However the decoder is too large to fit into the 8 pin plug provided on the PC board in the loco. A: We recommend a DZ143PS for those locomotives. They will fit in the space available. Don't be confused by the Z designation of this decoder, it is rated at a full 1 amp to run most HO locos but it is small enough to fit in Z scale locos.

KB960 Digitrax Transponding vs. Lenz RailCom

Transponding is proprietary technology of Digitrax Inc.  Transponding works with existing DCC compatible layouts. RailCom is proprietary technology of Lenz Elecktronik. This is sometimes referred to as "bi-directional communication."  It requires modifications to existing DCC equipment for proper operation.The two methods are not compatible, they do not use the same technology.

KB705 Can I operate LGB LOCOs (with LGB decoders) on a Digitrax system?

The LGB MTS (Multi-Train System) is DCC based, so a system such as Digitrax Super Chief 8 Amp and a high current power supply such as the Digitrax PS2012 (rated at 20 amps) will work successfully.However, the LGB system is not a pure DCC system and there are reports of problems when Digitrax units are used to program LGB decoders, especially the sound decoders.  The latest LGB MTS decoders (Generation III) will operate with NMRA DCC systems, however some of the sounds and other functions may not work.  Some users have reported creating a "hybrid" system, but we do not recommend that ...

KB874 Lenz LV100 Booster with Digitrax DT200 Command Station

Note: Upgrading to Digitrax from Lenz doesn't have to mean purchasing all new equipment! This app note shows you how to salvage some of your Lenz equipment when you move up to Digitrax!

KB374 Intermountain FT Decoder Selection

I bought 2 DN163I1A and 2 DN163I1B decoders which have brass . My 4 Inter Mountain FT units do not have brass motor contacts (as I found too late on your DN163I1C documentation for F3 units) but rather 2 wires soldered to the original board. Also, the DN163I1A or B can't be fitted in the space provided on the engine not only because the brass contacts on the decoder get in the way but because on the size of the decoder board is a little too big. Will all above render the decoders useless or what should I do? Because ...

KB972 PM42 Usage On A Non-Digitrax DCC System

If I use a non-Digitrax compatible system, what features of the PM42 Auto reverse/Short Circuit Managers (SCM) will I lose?The PM42 can be used as a stand alone Auto reversing unit and Short Circuit Manager with many other non-Digitrax systems, but for systems without LocoNet capability a number of networked management features will not be available.For example, the PM42 sends out real-time, event driven (non-polled) information to the LocoNet about fault problems and resolution, auto reverse actions and also identifies the affected sub-districts. This allows other devices, such as PCs, the Digitrax Signaling system, Digitrax Transponding or other detection and ...

KB973 Using PM42 With Other Systems

The PM42 was specifically designed to work with Digitrax Direct Home wired layouts. Any system that is configured this way will work with the PM42 with no interoperability issues. For example, CVP uses interoperable booster connections.The PM42 can be used with a DC system if it is hooked up in the negative ground return path, or even a Marklin AC digital (trinary) booster. It is possible for the PM42 to be used with most DCC systems. Digitrax has no control or knowledge of each specific non-Digitrax system and how it may interact with the PM42.

KB721 Sound From Sound FX Decoder Shuts Down on Non-Digitrax System

The sound in your decoder shuts down after you stop it and you are not using a Digitrax system for control. On some DCC systems decoders are not addressed by DCC packets after the locomotive is set to 0 speed. In this case after the CV11 timeout elapses (6 second factory default setting for SoundFX decoders), sound will shut down. To remove the timeout and prevent sound shutdown, set CV11=00.  This would leave the sound in the locomotive on until you remove power from the loco.Digitrax command stations continue to refresh locomotives by periodically sending packets to them as long ...

KB210 Modular Track Systems

An important series of developments in model railroading have taken place that makes it much easier to enter the hobby and enjoy it right away.  DCC is part of that process since it makes it easier to handle the train operation aspects of the hobby.  Other improvements have been the ready availability of correctly decorated locomotives and cars, scenery systems such, and, most importantly of all, advanced track systems.  Where it once required hours to get your model railroad’s track in proper operating form, the new modular track systems have greatly simplified things.  Everything just clicks together.These modular track systems ...

KB467 Athearn DD40 HO Decoder Install with Two Motors

Q: I have a late 70's or early 80's Athearn EMD DD40. An article on Wiring For DCC suggested a DH83FX - 2amp decoder for Athearn "Covered Wagons." The pictures look like the inside of my loco except the DD40 has twin motors with joined drive shafts. In researching your site, I realize that the DH83FX is no longer manufactured, but I was led to the DH163AT as the current replacement. Will this work? I have some other Athearn SD40 units, same vintage, but single motors. Is this the correct decoder for them? A: The "AT" in the decoder name ...

KB365 Proto 1000 - The Stuff They Don't Tell You

"I had two Proto 1000 RDC's that I wanted to convert. After opening up the first one, I did what I usually do, yanked out all the circuit boards and such, threw them over my shoulder and commenced to hardwiring the decoder into the unit. Everything went fine, and I took it with me to a friend's railroad to enjoy what I had done. After I got there and played a bit, my friend commented that wasn't it neat that the Proto 1000 series has wiring connections on the circuit board in the locomotive, making things considerably easier. Wiring points?" ...

KB992 Life Like Proto 2000 S-1 May Damage DCC

There is a potential problem using the DCC socket on the Life Like Proto2000 S-1. While the trucks and track pick-ups are isolated from the frame, there is a brass grounding lug attached to the motor's lower brush cap which makes electrical contact between the lower motor brush and the frame.  As a result if the wheels come in contact with the frame a short occurs and the decoder may be damaged! We recommend one of two work-arounds. 1) If you choose to use the 8 pin DCC plug, isolate the bottom motor brush from the frame of the locomotive ...

KB892 SoundTraxx Sierra Sound with DG383AR, DG583AR & DG583S

Follow the SoundTraxx Technical Bulletin #7 for Figure #1. Technical bulletin available at www.soundtraxx.com

KB893 Athearn N-Scale P59PHI Installation Instructions

The Athearn N-Scale P59PHI was not designed for a plug 'n play or board replacement installation therefore, a wired installation will be necessary. This installation is straightforward if you follow the instructions provided below. There is plenty of room inside the locomotive for this installation. See the Digitrax Decoder Selector on our home page to determine which current production decoder is recommended for this installation. Athearn N-Scale P59PHI Installation Instructions for Digitrax Decoders:1. Remove the locomotive's shell. Note which end of the frame is the front and which is the back.2. Remove the light board that is installed on the ...

KB240 Athearn PA's

I would like to re-power two old Athearn Alco PAs and sandwich a dummy PB in between. I would like to know if is possible /practical to install a sound module in the dummy unit. Actually, there's probably enough room to fit something in the A-units, but you could install sound into the B-unit if there is a way for track power to reach the sound unit. Consider the SoundBug: The speaker diameter is 28mm, or just a bit larger than an inch. You will need to fit the speaker into a baffle and the SoundBug must be programmed to ...

KB250 DH165K1A - Installation Instructions

DH165K1A Board Replacement Decoder Fits Kato SD40-2, AC4400 1. Carefully remove the locomotive’s shell from the frame. Note the orientation for proper reinstallation (Figure 1). 2. Remove the four track power pickup wires clipped to the lightboard at mid point (Figure 1). 3. Unscrew the two screws securing the lightboard and lift it from the frame. (Figure 2) 4. Remove the lightboard by pulling it gently straight up, off the motor clips. (Figure 3) 5. Decoder installation is the reverse of what we’ve done so far. Snap the decoder into place over the motor clips. Be sure motor clips are ...

KB251 DH165Q1 - Installation Instructions

The DH165Q1 fits many Atlas, Intermountain, Life-Like & Other factory sound equipped HO locomotives. Installation Instructions - Intermountain F7 example: Removing Locomotive Shell and Disconnecting Lightboard 1. Carefully remove the front coupler and then the locomotive's shell from the frame. Note the orientation for proper reinstallation. 2. Unplug and mark the two track power pickup 2-pin plugs, the motor 2-pin plug and the 6-pin headlight plug(Figure 1) Observe and carefully note the original wire locations! One of the track power plugs and the 2 pin motor plug can be inadvertently swapped when hooking up the new decoder PCB. 3. Unscrew ...

KB254 DH165K0 - Function Outputs

The DH165K0 is set up at the factory to control six function outputs. The DH165K0 is configured to control the forward-headlight F0F/white lead and reverse-headlight F0R/yellow lead for directional lighting. These two headlight function leads are current regulated for LEDs or lamps, with factory setting of approx 15mA, with no resistors required. Cut the ADJ link to increase headlight current to approx 30mA- see fig 5. Functions F1 (Green), F2 (Violet), F3 (Brown) and F4 (White/Yellow) are full track voltage and can be used by soldering a wire from the pad for the function you wish to use to the ...

KB255 DH165K0 - Installation Instructions

Preparation 1. Carefully remove the locomotive's shell from the frame. Note the orientation for proper reinstallation. (Figure 1) 2. Remove the four track power pickup wires clipped to the lightboard (2 on each side) (Figure 2) Carefully pull the brass motor clips from under the track power "staples" on the lightboard. 3. Unscrew the lightboard screws to release PCB from the frame. Decoder Board Installation 4. Physically secure the DH165K0 decoder PCB with the lightboard screws. 5. Attach the four track power pickup wires by shortening and stripping each wire (2 on each end) and soldering these wires to each ...