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speaker output
Gray
Switch key:
S1 - Horn (momentary)
S2 - Bell
S3 - Force Notch 8
Horn and Bell
S4 - Main sounds off
sounds would be
produced by this
#618 SPST momentary
Switch shown in the OFF position.
S4
S3
S2
S1
Connect only the switches desired for each sound
#524 SPDT switch.
system. It is best to use one with the prime mover
turned off (S4), using it to produce the Horn and Bell.
Switch shown in the OFF
position. Drawn as a spst.
The other unit would then produce the prime mover
with only S3, to force N8, utilized. As shown.
speaker output
Gray
Switch key:
S1 - Horn (momentary)
S2 - Bell
S3 - Force Notch 8
Prime mover
S4 - Main sounds off
sounds would be
produced by this
This unit would produce the prime mover sounds.
Utilizing S3, force N8, and S4, main sounds off,
as optional connections. The horn and bell
would not be used in this unit since the upper
unit would be producing those sounds.
S4
S3
S2
S1
#524 SPDT switch.
Switch shown in the OFF position. Drawn as a spst.
Using dual sound systems with an auxillary amplifier.
Black
White
+
Red
–
Gray
sound unit.
push button switch.
Black
White
+
Red
–
sound unit.
Gray
1k, 1/4w
(brn,blk,red)
ON / OFF
switch
#524 SPDT switch.
Switch shown in the OFF position.
Drawn as a spst.
1k, 1/4w
(brn,blk,red)
Audio input. Connect as shown to
resistors and gray speaker wire from
sound system. Do not use the red
speaker wire from the sound system.
This wire does not get connected!
10
track
Connect motor
motor leads, or whatever
M
you are using to adjust
if present
the prime mover notches.
Red
+
DC battery power input.
Input voltage of 12 to 24 volts DC.
Gray
–
Connect to the same power that is
powering the sound system.
If this is a DCC system, one of the sound
units needs to have J1 connected to
the track power and no battery power
or an on/off switch would be connected.
Switch inputs s1 - s4 would be
functions.
Auxillary 11 or 22 watt Audio Amplifier
with Treble and Bass controls.
Item 671 - 11watt, 672 - 22 watt.
Red
1
2
Black
3
Gray
More than one power amplifier can be used. To do so
connect the input wires (gray) in parrallel from the
amplifier to the sound systems gray speaker wire or
use one amplifier for each sound system.
power,
receiver
use
8 ohm
speaker
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