User Guide

5
DCC receiver installation using synchronization for chuff and
function control for Cylinder Blow Down, Main Sounds ON / OFF
DCC
track power input
Connect motor
if present
+
speaker
Red
Function key:
S3 - Cylinder Blow Down
S4 - Main sounds off
Connect S3, S4 to function control desired.
You do not need to connect functions you
do not intend on using.
Red
Gray
M
Vraw - do not
connect!
See note1.
Note1: if you do not desire to use the input rectification provided on the sound board
and have a Vraw available from your decoder you may elect to not use the DCC track
power input to power the sound system. You then need to connect Vraw to the Vraw
of the decode. The decoder rectification circuit must be able to carry enough power for
the sound system and motor. Therefore, this is not recomennded!
receiver motor leads (Orange / Gray is
standard practice). If you are using a
seperate receiver merely connect the
motor leads to pins 2 (red) and 3 (gray)
of J3. The sound system presents a load
of 480 to 980 ohms (depends on speed
set control setting).
Make sure that your receiver is operating in
the same step mode as the transmitter !!
Gray
Red
S3
S4
Chuff Pitch: (J4)
connect from: 1 (red) 2 (gray) to: J2 - 2 (gray)
lowest pitch no no
higher pitch yes no
higher pitch no yes
highest pitch yes yes
Connect wires from J4 to J2
for Chuff Pitch desired. If
you want to change pitches
with functions, connect
inputs ofJ4 to functions thus
allowing for remote
selection.
Other receiver or controller installation using synchronization for chuff and
function control for Cylinder Blow Down, Main Sounds ON / OFF
Connect S3, S4 to function control desired. You
do not need to connect functions you do not
intend on using.
DC battery power input.
Input voltage of 7 to 24 volts DC. Absoulute maximum
input is 35 volts DC! If the battery supply is not the
same as the receiver supply, connect the gray "-"
wire to the "-" of the receiver supply.
Connect motor
if present
speaker
Red
Function key:
S3 - Cylinder Blow Down
S4 - Main sounds off
Gray
M
If you are using a receiver that
operates higher than 24 volts, it is
necessary to add a 470 ohm, 1/2
watt, resistor in series with one of
the inputs to J3 from the motor lead.
+
–
receiver motor leads. Connect
the motor leads to pins 2
(black) and 3 (white) of J3.
The sound system presents
a load of 480 to 980 ohms
(depends on speed set
control setting).
Gray
Red
S3
S4