Bachmann Sound Value GE Dash 8-40CW - HO
Information on this wiki page provides particular details about this model not found in our basic guide.
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Contents
Overview
Bachmann’s all-new DCC sound-equipped Dash 8-40CW uses original design documentation and authentic sound files recorded from the prototype. This model includes a TCS WOWSound® decoder with factory-preset configuration, and on-board Keep-Alive® device for uninterrupted operation, even over dirty track. The WOWSound® diesel-electric locomotive sound package includes sounds for horn, bell, prime mover, air compressor, dynamic brakes, cooling fan, coupler close/release, brake release and application, and many more!
Loaded with prototypical features, the GE Dash 8-40CW in HO-scale from Bachmann Trains brings all the sights and sounds of GE's iconic rumble diesel-electric locomotive to your layout.
Features include:
- DCC sound-equipped for sound, speed, direction, and lighting control
- Dual-mode NMRA-compliant decoder operates sound, motor, and lights on DCC or DC power.
- TCS CD-quality audio
- Authentic and prototypical sounds
- On-board Keep-Alive® device that keeps your engine running during power interruptions due to dirty track or loss of electrical contact
- Directional headlights with "Rule 17" dimming operation enabled by default
- Directional steady/flashing ditch lights
- TCS' industry-leading "quiet drive" Back EMF motor control for superior slow-speed performance and load compensation
- User-loadable speed table options (3-point, 28-point, and 126-point curves)
- Three select-able Throttle Modes
- Two configurable Momentum Modes
- TCS' exclusive Function Pagination System
- Die-cast frame
Specific Features
The Bachmann Sound Value GE Dash 8-40CW - HO is at its heart a WOWDiesel decoder but has had some customization to make it specific to the locomotive. The information below details where CV’s and operation differ from the standard Diesel decoder.
DC mode operation
When operating in DC mode, the locomotive will sit still and silent until a sufficient track voltage is present. Once the minimum voltage is met the locomotive will ignite the prme mover and the lights will come on. Increasing the voltage slightly more will begin to move the locomotive. A directional horn blast will sound, and the bell will activate automatically. Increasing the voltage further will shut off the automatic bell. Users may trigger a grade crossing horn quill sound by quickly adjusting the track voltage up and back down quickly. The directional horn blasts, quill, and automatic DC mode bell are enabled by default and are controlled by the Automatic Sounds CV.
Additional Sound Features
N/A
New Lighting Features
N/A
Button Mappings
The values outlined below in the button mapping, sound list, and CV values are the defaults assigned to this particular decoder from the factory.
For information on how to program your locomotive using the values provided in the charts below, please see our Comprehensive Programming Guide, WOWDiesel V4 Programming Guide, and/or List of Standard CV's.
TCS Function Pagination System
The Bachmann Sound Value GE Dash 8-40CW - HO supports TCS' new "function pagination" system. This makes it easy to access all 28 functions and all lighting effects on throttles with limited function access by adding an offset to the pressed function button (offset of +10 for function page 2; offset of +20 for function page 3). For example, to access function 15:
- Press function 8 twice to rotate through the function pages until the decoder announces "function page [two]"
- Press button 5 on your throttle/controller
- The decoder will activate function 5 + 10 (page 2 offset) = 15
Note: the decoder supports accessing all decoder functions above 9 regardless of the currently selected function page by pressing the corresponding buttons on your throttle.
If you have a command station which supports all 28 function buttons and would like to disable function pagination, this may be done by re-configuring CV 177
| Button Mappings | ||||
|---|---|---|---|---|
| Function Button | Sound Action | Light Action | Dual Enabled | Page and Button |
| 0 | None | Headlights | Yes | Page 1 Button 0 |
| 1 | Bell | None | No | Page 1 Button 1 |
| 2 | Horn - Long Blast | Blink Ditch Lights | Yes | Page 1 Button 2 |
| 3 | Horn - Short Blast | Ditch Lights (on/off) | No | Page 1 Button 3 |
| 4 | Horn - Grade X Quill | None | No | Page 1 Button 4 |
| 5 | Train Brake | None | No | Page 1 Button 5 |
| 6 | Startup/Shutdown | None | No | Page 1 Button 6 |
| 7 | None | Dim Headlights | Yes | Page 1 Button 7 |
| 8 | 1x Press Mute/Unmute 2x Press rotate light/sound mode or page 4x Press Audio Assist™ |
None | Yes | Page 1 Button 8 |
| 9 | None | None | No | Page 1 Button 9 |
| 10 | Manual Notch Up | None | No | Page 2 Button 0 |
| 11 | Manual Notch Down | None | No | Page 2 Button 1 |
| 12 | Coupler Crash | None | No | Page 2 Button 2 |
| 13 | Coupler Release | None | No | Page 2 Button 3 |
| 14 | Brake Release | None | No | Page 2 Button 4 |
| 15 | Dynamic Brakes | None | No | Page 2 Button 5 |
| 16 | Momentum | None | No | Page 2 Button 6 |
| 17 | Crew Alert | None | No | Page 2 Button 7 |
| 18 | 1x Press Mute/Unmute 2x Press rotate light/sound mode or page 4x Press Audio Assist™ |
None | No | Page 2 Button 8 |
| 19 | None | None | No | Page 2 Button 9 |
| 20 | Air Spit | None | No | Page 3 Button 0 |
| 21 | Forward Quill | None | No | Page 3 Button 1 |
| 22 | Reverse Quill | None | No | Page 3 Button 2 |
| 23 | Stop Quill | None | No | Page 3 Button 3 |
| 24 | Rotate Bell/Horn | None | No | Page 3 Button 4 |
| 25 | Windshield Wipers | None | No | Page 3 Button 5 |
| 26 | Exhaust Fan | None | No | Page 3 Button 6 |
| 27 | None | None | No | Page 3 Button 7 |
| 28 | 1x Press Mute/Unmute 2x Press rotate light/sound mode or page 4x Press Audio Assist™ |
None | No | Page 3 Button 8 |
{{Random Mapping |random sound 1=Air Compressor |random sound 2=Air Spitter 1 |random sound 3=Air Spitter 2 |random sound 4=None
CV Addendum (Standard CV's)
The SC-44 Charger follows the motor and lighting CV's as described in TCS's Comprehensive Programming Guide. Listed below are the CV's that have been modified for the Charger decoder.
| CV Number | CV Value | Description |
|---|---|---|
| CV248 | 1 | Sound Set Revision Identifier. First Run = 1 |
CV Addendum (Indexed CV's)
The SC-44 Charger follows the motor and lighting CV's as described in TCS's WOWDiesel Programming Guide. Listed below are the TCS Indexed CV's that have been modified for the SC-44 Charger decoder.
[The Sound type "Air Spitter" was re-named to "Dust Blower" in Audio Assist]
[The Sound type "Sanding Valve" was re-named to "Emergency Brake" in Audio Assist]
| Indexed CV Number (CV31,CV32,x,y) | Indexed CV Value (CVx,CVy) | Description |
|---|---|---|
| xx | y | zzzzzz |
Demonstration
Coming Soon!
Decoder Service and Repair
For service/repair, contact the Bachmann Service Department by visiting www.bachmanntrains.com/home-usa/service.php, calling 1-800-356-3910 (toll-free within the U.S. and Canada), or emailing service@bachmanntrains.com. Bachmann’s Service Department is available Monday thru Friday, 8:30 AM to 4:30 PM ET.
You can also send your locomotive to: Bachmann Trains Service Department 1400 East Erie Avenue Philadelphia, PA 19124
Please include a detailed description of your concern and complete contact information. For some service issues regarding DCC sound decoders, the Bachmann Service Department may forward your locomotive to TCS for resolution.
