Digitrax SDH104K1A, FN04K1 User Manual

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SDH104K1A+FN04K1 COMBO

Plug ‘N Play for Kato AC4400 HO Locomotives Preloaded with AC4400 Sound Scheme

FFeeaattuurreess:

n Digitrax SoundFX

Sound System-Your locomotives will sound like the

real thing with SoundFX

Customizable 8 Bit Sound 3 simultaneous voices Downloadable Sound with Digitrax PR2 and SoundLoader software 4 Megabit Sound Memory Playable F2/Whistle with DT400 Throttle 1 Watt Sound Output Cam input-synchronized steam chuff (yes, you can install in a steam loco)

n Smart Power Management-no more booster or programmer shutdowns! No

extra equipment needed to program or run

n Digitrax LocoMotion

-Proven Complete Train Control technology

Fine Speed control with 128 Speed Steps, Acceleration and Deceleration, User Settable Normal Direction of Travel, Switching Speed Feature, 3 Step Speed Tables, 28 Step Speed Tables, Torque Compensation and more

n Digitrax FX

Functions-Control lights and functions

n Scalable Speed Stabilization (Back EMF) n SuperSonic motor drive for silent operation n Plug ‘N Play design makes installation quick and easy n Transponder equipped ready for transponding on your layout n Program using any Digitrax Compatible Control system without having

to buy any extra equipment

n Direct mode programming n Operations Mode Programming (Ops Mode Read Back is available on

transponder equipped layouts, too)

n Decoder Reset CV with or without speed table reset n Motor Isolation Protection helps prevent damage to your decoder n Basic, Advanced & UniVersal Consisting n 2 Digit and 4 Digit Addressing n DCC Compatible

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HO Scale

SDH104K1A: Plug N’ Play Mobile Decoder with SoundFX

Includes 28mm 32 Ohm Speaker & 330uF Capacitor

1.0 Amp/1.3 Amps Peak

FN04K1: 4 Function FX3200ma Decoder

PPaarrttss LLiisst

1 SDH104K1A Mobile with Sound FX

1 Instruction sheet 1 Speaker harness with 28mm 32 Ohm speaker and 330 uF capacitor/clip 1 FN04K1 Function Decoder

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See the Digitrax Decoder Manual for complete decoder test procedures, installation instructions, programming and technical information. Digitrax manuals and instructions are updated periodically. Please visit www.digitrax.com for the latest versions, technical updates and additional locomotive-specific installation instructions.

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1) Carefully remove the AC4400 couplers, shell, and side-decks as indicated on

manufacturer’s model assembly diagram.

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Figure 2:

Installation Wiring Diagram

Warning: To prevent decoder

damage, be sure the motor contacts are properly seated before applying power.

Motor Contacts

Mount Screws

Track Wires

Speaker

Capacitor

Track Wires

SDH104K1A: Motor and Sound Decoder

FN04K1: Function Decoder

SDH104K1A with FN04K1 Attached

For more reliable operation

Digitrax recommends sol-

dering the connections

between the two decoders.

Figure 1: SDH140K1A & FN04K1 Decoders

Light board removed

2) Disconnect 4 track wires from the track power clips on the light board.

Unscrew and remove light board. Retain the two screws.

3) If the FN04K1 is not already attached to the SDH104K1A, plug it in and

solder the pins to secure the two decoders together and clip the two center pins to prevent shorting to the LED leads. We recommend soldering the pins in place to ensure a secure electrical connection.

4) Place SDH104K1A decoder in position and use small pliers to press in 2

motor contacts. Using 2 light board screws removed earlier, secure the decoder in position.

5) Install the speaker by removing the 2 piece diesel tank surround. From the

engineer/right hand side of the locomotive place the 28mm speaker attached to the wire harness in the speaker enclosure with the cone facing outward.

Remove any magnetic debris from the speaker. Replace diesel tank surround.

6) Replace side-decks and couplers.

7) Re-connect the 4 track wires by inserting them under the track power clips

on the SDH104K1A. Be sure that the wires are retained and do not touch anything but the clips and pads. Run the track wires in the track lead slots in the casting so they do not interfere with the shell.

8) Install the capacitor attached to the wire harness at the rear of the casting

using the plastic clip provided. Be sure no wires short to the casting. Trim back and secure any unused wires so they do not short to the decoder or frame or bind the drive shafts.

9) Inspect and test the installation before replacing the shell.

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Diesel Tank Surround

Speaker Installed Inside Speaker Enclosure

Figure 3: Speaker Installation Diagram

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Your Digitrax decoder is ready to run and will operate using address 03 with no additional programming. On your Digitrax system, simply select the locomotive’s address and the sound will start. On some DCC systems, it is necessary to select the locomotive address AND send a command to start the sound.

For a more prototypical railroading experience, your decoder can be customized for your specific locomotive by programming some of the Configuration Variables, or CVs, available. Digitrax SD decoders can be programmed using either the direct method on a programming track or with the operations mode using the main line. See the Digitrax Decoder Manual or the Digitrax web site for more information.

Intial Test and Programming: This decoder is preprogrammed and tested

with an AC4400 sound scheme, and is ready to operate on factory default address 03. Before customizing the decoder it is useful to run it on the factory default address 03 to check the installation. The following sections show how to change the locomotive address and customize the decoder

For more information on decoder installation and programming techniques and

examples visit the www.digitrax.com

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The first CV most people change is the decoders address. This lets you independently control each loco with its own unique address. Digitrax decoders are

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Track Power Clips Capacitor with Clip Installed

Track Lead Slots

Track Power Clip Detail

Figure 4: Installation Diagram

shipped with CV01 (AD2), the two digit address, set to 03. Following is a brief description of how to change the decoder address with a Digitrax DT series throttle. See your Starter Set Manual for complete programming instructions.

1. Place the loco on the programming track or on the main line.

2. Enter the programming mode using your DCC system/throttle. On DT400

press PROG until you see “Pd” if using a programming track or “Po” if using the main line.

3. Use your throttle to choose the address you want to set up for the decoder. On the DT400 use the left knob to dial AD2 for two digit programming, use the right knob to dial up the address, click the right knob to change to AD4 for programming 4 digit addresses.

4. Complete address programming. On DT400 press ENTER. Note: CV29 must also be programmed to enable 4 digit addressing, this is done automatically by the DT300 & DT400 but not on earlier throttles.

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The sound project loaded into this decoder is for an AC4400 diesel locomotive.

If you want to install it in a different locomotive, you can simply load a different sound project for that type of locomotive. The cam input is available for steam installations where you want to synchronize chuffing.

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Your locomotives look like the real thing, now you can make them run like the real thing, too. Digitrax decoders incorporate torque compensation for smooth as silk operation. You can also program CVs that control momentum, 3 step and 128 step speed tables, switching speed, normal direction of travel, scaleable speed stabilization and more to take full advantage of the Digitrax LocoMotion System.

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Momentum is part of the LocoMotion System. Acceleration is controlled by CV03 and deceleration by CV04. Both come from the factory set to 000/x00. A range of 000/x00 to 031/x1F is available for both accel and decel. We recommend that you try CV03:003/x03 and CV04:000/x00 as a starting point for experimenting with momentum.

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With Digitrax LocoMotion, there are two types of speed tables: 3 Step Tables and High Resolution 28 Step Tables. Please see your Digitrax Decoder Manual for a discussion of the 28 Step Tables. The 3 Step Tables are set up by programming 3 CVs: Start Voltage (CV02), Mid point Voltage (CV06) and Max Voltage (CV05). These values are set at 000/x00 at the factory. All have a range of val-

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ues from 000/x00 to 255/xFF. We recommend the following CV values as a starting point for experimenting with speed tables.

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Switching speed is controlled by CV54. The factory setting is 000/x00 for OFF. To turn on the switching speed feature, program CV54 to a value of 001/x01. When this feature is on, use F6 to activate and deactivate switching speed. When switching speed is ON and F6 is ON, the switching speed feature is on. With the feature on the throttle’s target speed is effectively reduced by about 50% and the effects of accel and decel programmed into the decoder are reduced by 1/4. This is useful for yard switching operations.

Normal Direction of Travel is controlled by CV29. See your decoder manual for additional information on the settings for CV29.

Scaleable Speed Stabilization (Back EMF) intensity, or droop, is controlled by CV57. The factory setting for this feature is 006/x06 which is suitable for most locos. You can adjust this value in the range of 000/x00 for OFF to 015/x0F for the maximum effect. Consult your Digitrax Decoder Manual for info about CVs 55 & 56 and their effects on scaleable speed stabilization. The factory setting for both CV55 & CV56 is 000/x00.

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The factory settings in the decoder provide silent, smooth operation of your locomotive under most conditions. For more information about these settings, please see the Digitrax Decoder Manual or our website.

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Digitrax Transponding is controlled by CV61. The initial factory set value is 000/x00 for OFF. To turn on transponding, program CV61 to a value of 002/x02. This allows you to use Digitrax transponding to keep track of your

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Loco Type V Start V Mid V Max

CV02 CV06 CV05

Switcher

Concentrated low speed. Limited top 002/x02 038/x26 064/x50 speed

Road Switcher

Prototypical top speed w/evenly 002/x02 048/x30 098/x62 distributed curve from 0 to top speed

Mainline Loco

Quick increase to cruising speed then 002/x02 128/x80 154/x9A levels off to prototypical top speed.

rolling stock. When transponding is enabled, the front light of the locomotive may flicker slightly to indicate transponding signal is being communicated. For optimal transponding operation, we recommend that you hook up the forward and rear lights as shown above.

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Decoder reset lets you reset all CV values to the initial factory settings. To reset all CV values, program CV08 to a value of 008/x08. You also have the option of resetting all values except the 28 speed step tables. To do this,

program CV08 to a value of 009/x09.

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Digitrax SoundFXTMlets you make your locos sound like the real thing! The SoundFX sound CVs in the range of CV140 to CV256 let you customize

your decoder without having to reprogram or change the installed sound scheme.

Standard decoder CVs in the range of CV01 to CV120 operate the same as for

a non-sound FX

Digitrax decoders (they control motor and light functions etc.) CV58 is used as Master Volume, and CV60 is used to select an alternate scheme, if provided in the sound project.

Sound CV155 is provided to select Diesel engine “notching” modes. The

default of CV155= 00 provides “automatic notching” that changes the diesel RPM settings at 8 distinct throttle speeds that are controlled by Sound CV132.

Sound CV155=01 selects “semi-automatic notching” mode that allows F6 ON

to increase the notch from the current throttle setting and F7 ON to decrease back towards the lowest current throttle notch setting.

Sound CV155=02 selects “manual notching” mode that allows F6 ON to

increase the notch setting and F7 ON to decrease the notch setting irrespective of the throttle setting, which controls just the motor speed.

The decoder’s sound scheme can be reloaded using a Digitrax PR2 program-

mer and a sound project file (for example AC4400.spj) from the Digitrax Sound Depot web site. Typical sound downloads take between 50 and 100 seconds depending on the project complexity and file size.

The following tables show the CVs used in this decoder version and how it is

set up at the factory to operate various sounds using your throttle.

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CV#

Used For

Factory defaultValue

2 Digit Address

03 11

Sound Time Out, 06=Sound ends when loco address is de-selected, 00=Sound stays on after loco is de-selected

Configuration Register

06 49

Forward Light (F0F)-Headlight

0 50

Reverse Light (F0R)-Reverse Light

0 51

Function 1

0 52

Function 2

0 58

Master Volume Control

0 60

Select Sound Scheme

0 132

Notch Rate

127 135

Mute Volume

0 140

Prime Mover Volume (Min=0, max=64)

60 141

Bell Volume (Min=0, max=64)

25 142

Horn/Whistle Volume (Min=0, max=64)

60 143

Time-Scattered Air Effects Volume (Min=0, max=64)

146

Bell Ring Rate

07 147

Air Drier Rate

02 148

Compressor Run Rate

30 149

Air Compressor On Time

20 150

Horn/Whistle Setup (Default=0, Playable Horn=1, Alternate Horn=2)

151

Auto Coupler Sequence Threshold ValuePeak speed to allow auto coupler/brake when direction change occurs and F3 is ON

152

Project Author ID, Digitrax=221

221 153

Sound Project ID, AC4400=02

02 155

Notching Mode: 00=Automatic, 01=SemiAutomatic, 02=Manual

For additional information about sound CVs visit www.digitrax.com/soundcvs

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The SDH104K1A has no native function control ability. The FN04K1 and other Digitrax function decoders can be used in conjunction with the sound and motor decoder if function control is to be used. The LEDs on the SDH104K1A will not work unless a separate function decoder is installed.

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Func

Used For

Notes

Lights F1

Bell F2

Horn/Whistle

CV150 sets mode F3

Coupler crash

Auto coupler/brake set by CV151 max speed F4

Air feature disable

F4 off means pop-off and drier are enabled

Dynamic Brake Fans F6

Air blowoff

Notch UP if CV155=01 or 02 F7

Crossing Gate Airhorn Sequence

Notch DOWN, if CV155=01 or 02 F8

Mute Control

F8 ON is mute F9

Brake squeal F10

Crossing Gate Airhorn Sequence

Right Hand Track

F0-Forward (White)

Left Hand Track

Figure 5: FN04K1 Function Decoder Outputs

F0R-Reverse (Yellow)

+Common (Blue)

F2-Function 2 (Violet)

F1-Function 1 (Green)

FN04K1 is set up to control the forward and reverse lights on the locomotive through the white lead and yellow lead using Function 0 (F0F-forward and F0R-reverse) for directional lighting. Functions F1(Green) and F2(Violet) are available on the FN04. To use these functions, solder a wire from the pad for the function you wish to use to the lamp (or other device) you wish to control. The Blue/+Common pad works the same way as the blue wire on the harness and is provided here for convenience. The wire colors indicated are the standard industry color code (you can use any color you like). These colors are important if you plan to use function remapping.

CAUTION: When adding function wires, be very careful that the wires you add do not come into contact with any other pads or components on the board where they might create a short circuit.

All four function outputs can be set up with Digitrax FX

lighting effects or as

standard on/off functions with the following operational qualifiers:

1. Forward or Reverse direction of travel, or

2. Whether F0 is on or off, or

3. Both direction of travel and whether F0 is on or off, or

4. Whether the locomotive is stopped or moving.

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Function remapping allows you to program the function outputs of your decoder to be controlled by selected function keys on your throttle. Please consult the Digitrax Decoder Manual or website for information on function remapping.

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Each of the four function outputs can be programmed to turn on and off with the F0 ON/OFF key on your throttle, creating a Master Light Switch. The CV values for creating this effect are listed in the Digitrax Decoder Manual in the section: Setting up FX & FX

Effects On Function Outputs.plugs into the

decoder. This 9 pin connector has been adopted by other companies in the DCC industry, too.

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Digitrax SoundFX deccoders will operate on smooth DC power. The sound will not start until approximately 5 volts is applied to the track and there will be no “start up sound.”

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If the sound does not start in the decoder

1. Make sure you have selected the locomotive on a throttle. The sound will not run unless the locomotive is addressed in the system.

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2. Check your installation to make sure the decoders are installed properly.

If the sound output sounds distorted

1. Check the speaker cone for magnetic debris that may have collected there. Debris on the speaker will cause a loss of sound quality and must be removed.

2. Be sure that the CV58 volume is not set at a level that is too high for the speaker. For impedances below 32ohms (e.g. 8 to 30 ohms) set the volume setting lower to ensure the 1 watt output rating is not exceeded.

If the LEDs do not respond to F0:

1. Be sure the locomotive address you are using to send the command is actually the address programmed into the decoder.

2. Make sure you have good electrical connections between the FN04K1 to the SDH104K1A. We recommend soldering these connections for best reliability.

If 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 default), sound will “shutdown.”. To defeat this feature, set CV11=00 to remove the timeout and shutdown. To make

sounds, the decoder must have a command addressed to it at least once.

If you have trouble reading back on the programming track, this may be due to your system using Direct Bit mode for Service Mode readback. This creates difficulty reading two decoders in a locomotive that may have different data or responses. Since the SDH104K1A and FN04 are actually two decoders, you’ll need to use standard direct mode for reading back CV values on the programming track. Of course you can always just re-program the CV value into a CV to get the desired results. OPs mode is recommended for programming all CVs except CV01, CV17 & CV18 (2 digit and 4 digit addresses).

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All warranties on Digitrax products are limited to refund of purchase price, repair or replacement at Digitrax’s sole discretion. Except as expressly stated in the full warranty statement, there are no warranties, express or implied, including but not limited to any warranties of merchantability or fitness for a particular purpose. For complete warranty details see www.digitrax.com.

Damaged decoders should be returned directly to Digitrax for repair. Incorporates elements of US Patents 6220552, 6545886, 6729584, 6747579,

other patents pending.

Digitrax, Inc. is not responsible for unintentional

errors or omissions in this document.

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Made in U.S.A.

307-SDH104K1AC 1k/12/08

SDH104K1A+FN04K1 Combo

Plug ‘N Play Sound/Mobile Decoder + Function Decoder

for Kato HO AC4400

2443 Transmitter Road

Panama City, FL 32404

www.digitrax.com

T 850-872-9890

F 850-872-9557

E sales@digitrax.com

Digitrax SDH104K1A, FN04K1 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual