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speaker output
Gray
Switch key:
S1 - Whistle (momentary)
S2 - Bell
S3 - Cylinder blow down
S4 - Main sounds off
All main sounds
would be produced
by this sound unit.
#618 SPST momentary
Switch shown in the OFF position.
S4
S3
S1
S2
Connect only the switches or functions desired. If
operating with the LocoMatic™ controller, connect
#524 SPDT switch.
the white wire, J3 pin1, as shown on page 3 with
Switch shown in the OFF position.
the choke and track pickup connections.
Drawn as a spst.
speaker output
Gray
Chuff sounds
produced by this
sound unit.
This unit will produce the exhaust chuff sounds. None
of the switch inputs would be connected. If using the
LocoMatic™ Controller you would not connect pin 1
of J3 on this unit since all other sounds will be
produced by the upper unit.
A specific exhaust chuff board (item #711) can also be
used instead of a standard, full featured unit. This unit
features selectable chuff's, from heavy to light, and a
cylinder blow out that includes open ball cocks while
moving at initial slow speeds.
Using dual sound systems with an auxillary amplifier.
Black
White
+
Red
–
Gray
push button switch.
Black
White
+
Red
–
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)
Black
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!
9
track power, receiver motor
Connect motor
leads, or whatever you are
M
if present
using to adjust 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.
use
8 ohm
speaker
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