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RailKing SD-90 MAC Operating Manual
Tip #4:
You can utilize FYS even if you are double-heading with another
engine regardless of whether the second engine is equipped with an FYS
programmed ProtoSound® module. If the second engine isnt equipped with
FYS, the only thing to remember is that you not turn up the transformer
throttle very high when entering the Reverse phase found in Event 3. If the
throttle is set too high, then the second locomotive will begin vibrating on the
track as its motors will be turning in the reverse state since they cannot be
disabled automatically like FYS equipped engines. If your second engine is
equipped with FYS, you may want to disable it when used in double-headed
operations. To disable FYS, see the section on programming RESET
functions on page 28 of this manual.
Tip #5:
It is not necessary for the squeaking brake sounds to be heard to play
the FYS sounds. for example, the brake sounds wont be heard if the high
voltage setting is below 13 volts when the power is interrupted to enter the
Neutral state.
Tip #6:
You can leave any of the event states at any time after entering the
state by simply interrupting the transformer throttle. Any sound effects
programmed to play in that event will simply not occur. The only exception
is Event 2 and Event 5. In Event 2, interrupting the throttle has no effect on
FYS until after the arrival Cab Chatter message has completed and the freight
car doors have opened. In Event 5, you cannot interrupt FYS until after the
engine begins to move. Interrupting the throttle before the engine begins to
move has no affect on the locomotives operation.
