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PRR S-2 Turbine Operating Instructions
SELF-CHARGING BATTERY BACKUP
Proto-Sound® includes a self-charging battery backup system for improved
performance at any speed. The battery ensures that power to the sound
system will remain on during directional changes, while setting RESET
options or when traveling over spots of dirty track and switches. The
self-charging battery backup system is automatically turned on or off.
There are no switches needed to enjoy the benefits of the automatic battery
backup system.
Proto-Sound® contains a warning alarm if the battery backup system fails
to automatically disengage when track power is turned off. Should the
backup system fail, you will hear a repeating whistle or horn blast
indicating that this has occurred. Should this happen, unplug the battery
from the Proto-Sound® module (to prevent the battery from being run
down) and contact MTH for instructions on returning the train for repair.
REPLACING THE PROTO-SOUND® BATTERY
The Proto-Sound® battery (located in the tender body), is a special NiCad
7-cell, 8.4v battery -NOT the 6-cell, 7.2v battery found in most convenience
stores. The battery is continually charged from the track when power is
applied above 10 volts and should last for up to five years. In addition, the
NiCad battery is a dry battery and should not leak or cause any damage to
your locomotive during its lifetime. The 6-cell NiCad is NOT
recommended for use with Proto-Sound® applications.
If you notice that the sounds seem distorted or garbled at low voltages or
become silent when power from the transformer is shut off, the battery may
be failing. Before replacing the battery, you should put the engine in
NEUTRAL and leave the transformer throttle set at about 12 volts for 15
minutes. This should temporarily recharge the battery. If the garbled or
distorted sounds are reduced, then your battery charge has worn down. You
can give your battery a full charge by leaving the engine ON in the
NEUTRAL position for 6 hours and leave the transformer throttle set at
about 12 volts.
Note: When charging the battery in neutral, if your trains contains a
Smoke Unit, it should be turned OFF to prevent damage to the wick and
the heating elements
.
If you need to replace the battery, they are available from MTH
Proto-Sound® Electronics at 7020 Columbia Gateway Drive, Columbia,
