Operating instructions

13
RailKing 4-Car Subway Set Operating Manual
RAILKING
SELF-RECHARGING BATTERY BACKUP SYSTEM
ProtoSounds® state-of-the-art design includes a self-recharging battery
backup system for improved performance at any speed. The self-recharging
battery backup system is automatically turned on or off whenever track
power is turned on or off. There are no switches to turn on or off to enjoy
the benefits of the automatic battery backup system. The battery ensures
that power to the sound system will remain on during directional changes,
setting RESET options, or when traveling over dirty track and switches.
The battery is a rechargeable NiCad type which is continually charged
from the track when power is applied. NiCad batteries are a dry battery and
should not leak or cause any damage to your locomotive and will last up to
five years or longer. 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 charge may be low. Before replacing the battery, you
should put the engine in NEUTRAL and leave the transformer throttle at
about 12 volts for fifteen 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 NEUTRAL for 16 to 18 hours.
REPLACING THE PROTOSOUND BATTERY
The ProtoSound® battery is a special NiCad 7-cell, 8.4v battery - NOT the
6-cell, 7.2v battery found in most convenience stores. The 6-cell NiCad is
NOT recommended for use with ProtoSound® applications. Replacement
ProtoSound® batteries are available from MTH ProtoSound Electronics at
7020 Columbia Gateway Drive, Columbia, MD 21046-1532. A standard
9v alkaline battery can be substituted as a temporary fix, but since alkaline
batteries can’t take a charge, it will eventually wear down. Regardless, it
should give you a week to a couple of months use while you wait for your
replacement ProtoSound® battery to arrive.
PROTOSOUND® VOLUME ADJUSTMENT
Your ProtoSound® system has two types of volume adjustment. A
manual turn knob on the bottom of the chassis (See Fig. 1, on Page 3)
allows you to control all the sounds in the system and a remote control
“RESET" option (Option # 6), allows you to control the volume level of the
car motor sounds remotely from the transformer. Turning the volume
adjustment knob clockwise will increase the volume and counterclockwise
will lower the volume of all sounds; bell, horn, engine sounds, TAS, etc.