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Troubleshooting Proto-Sound® Problems

Although Proto-Sound 2.0 has been designed and engineered for ease of  use,
 you may have some questions during initial operation.  The following table
 should answer most questions.  If your problem cannot be resolved with this 
table, contact M.T.H. for assistance (telephone: 410-381-2580; fax: 410-423-0009; 
[email protected], 7020 Columbia Gateway Drive, Columbia MD 
21046-1532).

Railking Scale GP-20   Diesel Engine Proto-Sound®2.0

18

Starting Up

Whistle/Horn

Bell

Coupler

Remedy

Remedy

Remedy

Remedy

Remedy

When I first turn the power on, the 
engine will not begin to run.  I 
have to turn the throttle off and 
then on again to get the engine to 
operate.

When I press the whistle/horn 
button, the bell comes on instead.

I can’t get the horn to blow when I 
press the whistle button.

I can’t get the bell to ring when I 
press the bell button.

The bell won’t work on a separate 
bell button.

When I try to fire the coupler, FYS 
starts.

The Proto-Coupler won’t let the 
engine uncouple on the fly.

The coupler does not fire or stay 
coupled.

When I press the whistle button, 
the bell sounds.

Reverse the transformer leads.

You may be pressing the button 
too quickly. Try pressing the 
whistle/horn button more slowly, 
taking approximately one full 
second to fully depress the button.

You may be pressing the button 
too quickly. Try pressing the bell 
button more slowly, taking 
approximately one full second to 
fully depress the button.

Reverse the transformer leads.

Check the wiring of the separate 
button.

You are waiting too long between 
whistle button presses.

Try lubricating the coupler knuckle 
with a dry graphite lubricant. Do 
NOT use oil.

The coupler needs to be cleaned.  
Wipe with denatured alcohol (not 
rubbing alcohol) and let dry.

This is normal behavior.  To 
prevent accidental high-speed 
start-ups, Proto-Sound 2.0 is 
programmed to start up in neutral 
anytime track power has been 
turned off for several seconds.  

Summary of Contents for Scale GP-20Diesel Engine

Page 1: ...ge track system including M T H s RealTrax or ScaleTrax or traditional tubular track It is also compatible with most standard AC transformers See page 21 for a complete list of compatible transformers...

Page 2: ...6 As with all electric products precautions should be observed during handling and use to reduce the risk of electric shock WARNING When using electrical products basic safety precautions should be ob...

Page 3: ...t over oil Use only a drop or two on each pivot point Checking the Battery You may find if your locomotive was built several months before you set it up that the rechargeable battery has run down and...

Page 4: ...moke fluid or have already added fluid but choose to run smoke free turn off the smoke unit by turning the smoke unit volume control fully counter clockwise Failure either to add fluid to the smoke un...

Page 5: ...peed you set after you release the throttle until you turn it again to change the voltage and speed Bell To sound the bell in an engine equipped with a bell firmly press and release the Bell button To...

Page 6: ...s engine turn the master volume control knob located next to the fuel tank clockwise to increase the volume and counter clockwise to decrease the volume Railking Scale GP 20 Diesel Engine Proto Sound...

Page 7: ...sound system to play the FYS PSA quickly but firmly tap the Bell button once followed by 2 quick taps of the Horn Whistle button while the engine is moving Tap the buttons quickly but allow approxima...

Page 8: ...ered differently and that engine s motor disable feature will not be active when you run FYS PSA in Proto Sound 2 0 FYS PSA can be triggered from Neutral It will operate the same as if triggered while...

Page 9: ...Bell button two times allowing approximately second to lapse between each quick button press Repeat the 1 horn whistle 2 bells code to return it to the other condition You will want to do this during...

Page 10: ...s will indicate that the engine has made the change Automatic Sounds Certain Proto Sound 2 0 sound effects automatically play in programmed conventional mode conditions Squealing Brakes play any time...

Page 11: ...the gear box remove the cab from the chassis by unscrewing the body mount screws as seen in Figure 6 and lifting the cab from the chassis 2 Once the cab is removed remove the trucks by unscrewing the...

Page 12: ...cause poor electrical contact and traction and prematurely wear out the neoprene traction tires Wheels and tires can be cleaned using denatured not rubbing alcohol applied with a cotton swab To clean...

Page 13: ...using a razor blade or small flathead screwdriver to pry away any remains 2 Slip the new tire onto the wheel You may find it useful to use two small flathead screwdrivers to stretch the tire over the...

Page 14: ...ector terminal Gently disconnect the bulb harness from the connector terminal and remove bulbs through the rear of the headlight socket Insert the new bulb harness and reconnect Replacement bulb harne...

Page 15: ...minutes Recharge If the sounds are improved at the end of the 15 minute test charge the battery charge has run down and can be recharged There are a number of ways you can do this Leave the engine in...

Page 16: ...unter clockwise see Fig 3 Failure either to add fluid to the smoke unit or to turn it off may damage the smoke unit heating element and or wicking material When the smoke output while running the engi...

Page 17: ...Railking Scale GP 20 Diesel Engine Proto Sound 2 0 17 Figure 11 Inspecting the Smoke Unit Wick Inspection Cover Screws...

Page 18: ...tton The bell won t work on a separate bell button When I try to fire the coupler FYS starts The Proto Coupler won t let the engine uncouple on the fly The coupler does not fire or stay coupled When I...

Page 19: ...locked into the neutral position Follow the procedure in the Lock into a Direction section Engine speed must be below 10 scale mph approx 10 volts or less in conventional mode Proto Sound 2 0 volume i...

Page 20: ...s can be as realistic as possible Proto Sound 2 0 disables the reversing unit whenever FYS is enabled This way the engine remains still at its stop as the operator cycles through the FYS sequences FYS...

Page 21: ...3M U A 5 16v 90 Watt Standard Lionel 1044 U A 5 16v 90 Watt Standard Lionel 1053 U A 8 17v 60 Watt Standard Lionel 1063 U A 8 17v 60 Watt Standard All Trol Left Terminal Right Terminal 0 24v 300 Watt...

Page 22: ...op Single button push stops all Proto Sound 2 0 trains but does not turn off the power One Touch Global Mute UnMute Single button mutes or unmutes all DCS controlled locomotives user defined actions i...

Page 23: ...less of whether you discussed the problem with a service technician when contacting the Service Center for your Return Authorization Please make sure you have followed the instructions carefully befor...

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