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— 8 —

CV#

Used For

Range

Default   

Value

01

2 Digit Address

03

11

Sound Time Out, 06 = Sound ends when loco ad-

dress is de-selected, 00=Sound stays on after loco is 

de-selected

06

29

Configuration Register - Advanced or Standard 

speed steps, 2 or 4 digit addressing, Analog Mode, 

Normal direction of travel, speed tables

06

49

Forward Light (FOF) - Headlight

00

50

Reverse Light (FOR) - Reverse Light

00

51

Function 1

00

52

Function 2

00

58

Master Volume (F8 used for Mute) 1=min 00=max

00-15

09

60

Scheme 0=Steam  1=GP38 Diesel

00-01

00

132

Notch Rate

00-255

127

133

Steam Chuff/CAM config, 128=>EXT cam, 

1-127=>DRIVER dia in inches

01-128

63

134

Steam Gear Ration Trim, 32 = 100% Ratio

00-255

32

135

Mute Volume

00-64

00

140

Prime Mover / Chuff Volume

00-64

60

141

Bell Volume 

00-64

25

142

Horn/Whistle Volume 

00-64

60

143

Time-Scattered Air Effects Volume

00-64

30

145

Misc Vols

00-64

40

146

Bell Ring Rate (1=24 milliseconds)

01-100

07

147

Air Drier Rate (1-about 2 seconds)

01-64 

02

148

Compressor Run Rate

00-255

30

149

Air Compress On Time

00-255

20

150

Horn/Whistle Setup (Default=0, Playable Horn=1, 

Alternate Horn=2 +128 for playable volume.)

00-07 or 

128-135

00

151

Auto Coupler Sequence Threshold Value-Peak speed 

to allow auto coupler/brake when direction change 

occurs and F3 is ON

00-64

48

152

Project Author ID, Digitrax=221

221

153

Project ID, Steam/SD38_2

02

154

Steam Blow down / Safety Volume

0-64 

60

155

Notching/Slip Mode: 00=Automatic,

00

Summary of Contents for SoundFX SDH166D

Page 1: ...Track Motor and Function Control Series 6 Decoder Features Works with PX112 10 Power Extender Digitrax FX3 Functions Control lights and functions for prototypical lighting effects and on off control C...

Page 2: ...ot exceed 16V when using this decoder Installation Instructions Figure 1 SDH166D Decoder Connections SDH166D showing 10 Pin Sound Harness with 8 Ohm 16 x 26 x 9mm box speaker and 330uF capacitor 1 On...

Page 3: ...sing external synchronization cam capability connect the White CAM wire of the 10 Pin sound harness to the output connection of your cam and configure CV133 to a value of 128 to make the steam chuff t...

Page 4: ...ailable space Most HO or O scale or similar locomotives have limit ed internal volume within the shell so the choice of speaker mounting benefits from some ingenuity to get best sound performance and...

Page 5: ...oder address with a Digitrax DT4XX series throttle See your Starter Set Manual for complete programming instructions 1 Place the loco on the programming track not to exceed 16V Go into Program Mode on...

Page 6: ...n there are two types of speed tables 3 Step Ta bles and High Resolution 28 Step Tables Please see your Decoder Man ual for a discussion of the 28 Step Tables The 3 Step Tables are set up by programmi...

Page 7: ...0 operate the same as for a non SoundFX3 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 so...

Page 8: ...R dia in inches 01 128 63 134 Steam Gear Ration Trim 32 100 Ratio 00 255 32 135 Mute Volume 00 64 00 140 Prime Mover Chuff Volume 00 64 60 141 Bell Volume 00 64 25 142 Horn Whistle Volume 00 64 60 143...

Page 9: ...l Notch Up Steam Blowdown Notch UP if CV155 01 or 02 F7 Crossing Gate Airhorn or Diesel Notch DOWN Steam Wheelslip Notch DOWN if CV155 01 or 02 Crossing Gate active if in Diesel mode and CV155 0 F8 Mu...

Page 10: ...into a CV to get the desired results even if reading CVs does not work OPS mode is recommended for writing to programming all CVs ex cept CV01 CV17 CV18 2 digit and 4 digit addresses If a second DCC...

Page 11: ...polarity Pin 4 Yellow F4 Pin 5 Green not used Pin 6 Blue to sound cap Pin 7 Violet not used Pin 8 Black speaker polarity Pin 9 White cam input steam Pin 10 Black to sound cap 9 Pin Digitrax Easy Conn...

Page 12: ...EMPIRE BUILDER Super TM 0 0 0 0 Made in the USA 2443 Transmitter Road Panama City FL 32404 www digitrax com Contact www digitrax com contact Support techsupport digitrax com Repair repair digitrax com...

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