MTHTrains MTH F-3 DIESEL ENGINE, Operating Instructions Manual

21

MTH F3 Diesel Engine

button.  To reset ProtoSounds to its original factory setting of no horn in
neutral, repeat the above procedure but keep pressing the whistle button in
Feature 25 until ProtoSounds only dings once instead of twice.

Note:  When “Horn In Neutral" is set, the bell will only operate with a separate bell button and 
the horn will not sound in neutral if the transformer throttle setting is over 11 volts.  At 11 volts 

or higher, ProtoSounds may arm the coil coupler for operation whenever the whistle button is
pressed and the engine is in neutral.

PROGRAMMING FOR PROTOCOUPLER OPERATION

  ProtoSounds comes with a RESET feature that allows the operator to
remotely turn off  the ProtoCoupler functions.  This is especially useful
when double or triple-heading ProtoSound equipped engines since every
engine equipped with a
ProtoCoupler will fire
when prompted to by the
operator.  By turning off
the ProtoCoupler operation
on certain engines, you can 
fire the couplers open on
the other engines without
uncoupling the engines
from each other.  To turn
the ProtoCoupler function off, enter RESET and go to Feature 10.  (See the
section on 

Using RESET To Program ProtoSounds®

 on page 17.)  Once

in Feature 10, press the transformer whistle button and wait for ProtoSound
to sound a bell ding(s).  Continue pressing the whistle button until
ProtoSounds sounds two bell dings (signifying that the ProtoCoupler option 
has been turned off).  Simply turn the transformer throttle off and then on
again to lock in the new setting.  

PROGRAMMING FOR PFA OPERATION

  ProtoSounds® is equipped with a RESET setting to turn off the Passenger
Station Sound Proto-Effects (PFA) features.  This is especially useful if you 
are double-heading engines that are both equipped with PFA.  You may not
want to stop at a yard and have both engines playing their PFA sound
effects.  To turn off PFA, enter RESET and go to Feature 28.  (See the
section on 

Using RESET To Program ProtoSounds® 

on page 17).

Once

in Feature 28, press the transformer whistle button and wait for
ProtoSounds® to sound a bell ding(s).  Continue pressing the whistle button 

In RESET Mode

Move The Throttle 

Up & Down From

High Voltage To Low

10 Times

Listen For 2 Clank 

And 0 Clink Sounds

Push The Whistle Button

Until You Hear 

2 Bell Dings

Interrupt The Throttle

To “Lock-In” 

The Coupler Setting

H