Lionel Area 51 RS-3 Owner's Manual page 14

Operating your train set
Silencing the sounds
T
o silence the background sounds, slide the SOUND switch to the OFF position inside the cab.
See Figure 6. Turn off track power for about two seconds, and then the background sound will
be silenced when the track power is restored. The horn, alien sounds, and bell sounds can still be
triggered at any time using the remote. To restore the background sounds, simply slide the SOUNDS
switch to the ON position and then turn off track power for two or more seconds.
Always turn off track power for about two seconds after you slide the switch. The
Note!
background sounds will be reset according to the new switch position when the
track power is switched on again.
Front
Figure 6. Switch locations
SOUND On/Off switch
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Rear