Installing The Battery In The Powered A-Unit - Lionel F7 A-A Owner's Manual

Locomotive set basics

Installing the battery in the powered A-unit

A
lthough the LEGACY RailSounds sound system is powered through the track, you may choose
to install a nine-volt alkaline battery if you find that the sound system shuts down during
track power interruptions (for example, at a switch or over a dirty section of track). Follow these
steps to install the battery.
If the RailSounds sound system turns off during interruptions in track power, you may
Note!
need to replace the battery. Use only alkaline batteries.
1. As illustrated in Figure 5 below, carefully lift up and remove the rear rooftop
hatch to access the battery harness.
2. Snap the battery harness onto the nine-volt alkaline battery's terminals.
3. Slide the battery into the battery holder.
4. Replace the rooftop hatch, which is held in place by two magnets.
Volume
control knob
Rear roof top hatch
Figure 5. Battery installation (powered A-unit locomotive only)
Powered A-unit
Battery clip
9
Battery
harness