4
RailKing Doodlebug Electric Engine
PROTO-SOUND
2.0 OPERATING INSTRUCTIONS
Because Proto-Sound 2.0 is an all-new system developed by M.T.H.’s own
research and development team, it operates differently from original
Proto-Sound. Most Proto-Sound 2.0 features are automatically enabled, and the
reset state has been eliminated, so there is no need to program features as with
original Proto-Sound. Although the new system is easier to operate than
original Proto-Sound, you should read these instructions thoroughly before
using Proto-Sound 2.0 features in order to prevent harm to yourself or your
equipment.
Activating Proto-Sound 2.0 Conventional Mode Features:
Proto-Sound 2.0 features are activated by sequences of Bell and Whistle button
pushes described below. Please read the full descriptions of each feature
before using it. To use these buttons to activate features rather than to blow the
whistle or ring the bell, you should press the buttons for a shorter time (½
second); you may need to practice your timing to make this work smoothly.
Feature to Be Activated:
Passenger Station Announcements
Fire the Rear Coupler
Fire the Front Coupler
Speed Control On/Off
Lock into a Direction/Unlock
Reset to Factory Defaults
Button Code:
1 Bell, 2 Whistles
1 Bell, 3 Whistles
1 Bell, 4 Whistles
1 Whistle, 2 Bells (from Neutral only)
1 Whistle, 3 Bells
1 Whistle, 5 Bells (from Neutral only)
Volume Control
–
To adjust the volume of all sounds made by this engine,
turn the master volume control knob located under the engine clockwise to
increase the volume and counter-clockwise to decrease the volume (see Fig.
1
) .
Volume
Adjustment Knob
Figure 1. Location of the Proto-Sound 2
Volume Adjustment Knob