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SM18 2

nd

 Generation Decoders:

SM18, SM18ST & SM18AR

Phoenix Sound Systems, Inc.

3514 West Liberty Road

Ann Arbor MI  48103

www.phoenixsound.com

phone: +1 (800) 651-2444

fax: +1 (734) 662-0809

e-mail: [email protected]

©2020 Phoenix Sound Systems, Inc.

Summary of Contents for SM18 Series

Page 1: ...ecoders SM18 SM18ST SM18AR Phoenix Sound Systems Inc 3514 West Liberty Road Ann Arbor MI 48103 www phoenixsound com phone 1 800 651 2444 fax 1 734 662 0809 e mail phoenixsound phoenixsound com 2020 Phoenix Sound Systems Inc ...

Page 2: ...tems 8 Steam Systems 8 Triggered Sounds and Effects 9 All Systems 9 Diesel Only 9 Steam Only 9 General Installation Guidelines 10 The SM18 Bachmann Large Scale Socket 11 Plug In Installation 11 Speaker 11 K 27 Optical Chuff Jumper 11 The SM18ST Screw Terminal 12 Installation 12 Speaker 12 The SM18AR Aristocraft Socket 13 Mostly Plug In Installation 13 Speaker 13 Troubleshooting 14 LED Indicators 1...

Page 3: ...e the same physical layout however they are not interchangeable The J2 connections on Aristocraft sockets were never standardized and vary among the main Aristocraft circuit board designs For example socket pin J2 1 may connect to the speaker on one but on another it may be connected to the decoder B Other decoders which may plug into the Aristocraft socket have no connections to the J2 pins The D...

Page 4: ...play periodically until it sees motion contacts connecting Trigger 1 to ground Each closure produces a Chuff At first Chuff the directional toots play and the bell starts ringing Steam can be configured to run off of DCC speed steps and diesel can be changed to look for wheel rotation We initially set them up the way most modelers will use them Trigger Checkout In order for steam to leave the idle...

Page 5: ...ht Reverse Light Enable F1 Bell F2 Manual Whistle Horn F3 Output F1 Bachmann Firebox Light F4 Smoke On Off F5 Output F3 Bachmann Cab Lights F6 Output F4 F7 Volume Up F8 Volume Down F9 Blow Down F10 Station Announcement F11 Chatter F12 Shutdown F13 F14 F15 September 2020 5 ...

Page 6: ...Timeout seconds 10 0 255 17 Long Address 192 0 255 18 Long Address 3 0 255 29 Configuration See Chart 2 6 0 255 35 Function F1 See Chart 1 0 0 8 36 Function F2 See Chart 1 0 0 8 37 Function F3 See Chart 1 3 0 8 38 Function F4 See Chart 1 8 0 8 39 Function F5 See Chart 1 1 0 8 40 Function F6 See Chart 1 2 0 8 41 Function F7 See Chart 1 0 0 8 42 Function F8 See Chart 1 0 0 8 43 Function F9 See Chart...

Page 7: ...rebox Light Bachmann Plug In 2 Output F2 J2 9 Marker Light Bachmann Plug In 3 Output F3 J2 8 Cab Light Bachmann Plug In 4 Output F4 J2 7 Ditch Light A 5 Output F5 J2 6 Ditch Light B 6 7 Unused 8 Smoke J1 8 Chart 2 CV29 NMRA Configuration Values Bit Value OFF Value 0 On Bit 0 1 Normal Driving Direction Reverse Driving Direction Bit 1 2 14 Speed Steps 28 128 Speed Steps Bit 2 4 Digital operation onl...

Page 8: ... reverse will not replay until you go forward and back up again Brake Screech Plays just before stopping Diesel Systems Air Pop Plays periodically during idle Also plays while moving in SFX Brake Release Plays as the engine starts moving Compressor Plays periodically during idle Steam Systems Blow Down A longer and heavier steam release that clears out the ashes clinkers Steam Release Plays after ...

Page 9: ...tive sound like it is struggling with a heavy train or coasting into a station Diesel Only Dynamic Brake A triggered only sound It is almost a tone which results from using diesel drive motors as generators Rev Up Down Causes the prime mover sound to go to the next previous rev The sound will return to the corresponding rev based upon speed changes Radio Defect Hotbox Detector Plays a detector rad...

Page 10: ...e we do not recommend using it do not use conductive silicon adhesive either Speed Sensor You may need to experiment to get reliable triggering from a rotating axle with magnets on it After mounting the magnets on the axle hold the reed switch in various positions and hook something to the reed so you can tell when the switch is closed An ohm meter with a beeper works great You can point the reed ...

Page 11: ...r These are sized for a 3 inch round speaker Phoenix part number 820 770 which can then be wired to the solder pads on the locomotive circuit board labeled speaker K 27 Optical Chuff Jumper The K 27 was the first Bachmann locomotive equipped with the optical chuff sensor consequently following locomotives were fitted with a slightly different circuit to enhance the sensor response based upon the K...

Page 12: ...ost diesel require the shell to come off All connections will need to be made between the track motor and function outputs as desired Basic wiring diagrams can be found in their own section of this manual Speaker Appropriately sized speakers are available from Phoenix Sound Systems that are wired with the mating connector for the speaker lead from the SM18ST September 2020 12 ...

Page 13: ...unting hole for the programming jack PLEASE NOTE THAT THE ARISTOCRAFT SOCKET WAS NEVER STANDARDIZED FOR THE J2 CONNECTOR THEY DO NOT APPEAR TO BE CONSISTENT ACROSS LOCOMOTIVES NOR MATCH THE BACHMANN ARRANGEMENT USING AN SM18 FOR THE BACHMANN SOCKET INSTEAD OF AN SM18AR COULD RESULT IN DAMAGE TO THE DECODER AND OR THE LOCOMOTIVE OR ITS COMPONENT PARTS ANY DAMAGE RESULTING FROM USING THE WRONG DECOD...

Page 14: ...ally be in triggered chuff mode with no trigger connected verify the chuff trigger setting Erratic Chuffing The axle magnets may not be mounted symmetrically If the reed switch is not mounted to the truck the distance to the magnet might change during curves Engines with built in contacts Bachmann Spectrum may require cleaning or oiling of the contacts Contact Problems are the normal cause for fas...

Page 15: ...plifier 3 Watts maximum Speaker Load 4 Ohms or greater two 8 Ohm speakers in parallel is fine Access Jack Diagram THE PLUG IS A STANDARD 2 5MM STEREO TRS PLUG THE SUPPLIED JACK IS FULLY INSULATED FROM THE MOUNTING HOLE OTHER 2 5MM JACKS MAY BE SUBSTITUTED BUT MAKE SURE THAT THERE IS NO GROUND PATH BETWEEN THE COMMON TO ANY OF THE TRACK PICKUPS OR DECODER September 2020 15 ...

Page 16: ...Appendix A SM18ST Wiring Diagrams Basic DCC September 2020 16 Output F1 Output F2 Output F3 Output F4 Output F5 Programming Jack Speaker Motor Motor Front Light Rear Light Right Rail Left Rail ...

Page 17: ...CVP Airwire Converter September 2020 17 Programming Jack Output F1 Output F2 Output F3 Output F4 Output F5 Battery Speaker Motor Motor Front Light Rear Light ...

Page 18: ...Crest Revolution DCC September 2020 18 Programming Jack Output F1 Output F2 Output F3 Output F4 Output F5 Battery Speaker Motor Motor Front Light Rear Light ...

Page 19: ...e Change and modify chuff rhythm compression and tone plus many other features you will discover as you familiarize yourself with the system Adjust Motor speed settings Assign effects and features to function outputs Programming of CVs listed as supported without a Programming track All adjustments upgrades and sound loading can be made through the Access Jack You will not need to take the model a...

Page 20: ... service fee may be assessed if it is determined that the failure was not due to any Phoenix supplied components Phoenix Sound Systems Inc cannot be liable for damage to the system during shipping to our facilities due to mishandling inadequate packaging or similar circumstances beyond our control Please be sure to package the SM18 system in a secure static safe manner Please read the handbook and...

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