Page 15
Phoenix Big Boost™
Big Boost™ is included
in your Shay kit if you are
using track power with
your train. If you are using battery power for your train, skip this section.
This compact board provides a power boost to your Shay system so when you are
running at the typical slow speeds for Shay and using track power to
run your train, the battery is kept charged and in optimal condition for
assuring excellent sound output. When you place it inside the tender
in the place designated in Section 4, you must
tip it slightly to fit it inside the cavity.
BIG BOOST™ is installed directly into the
BIG SOUND™ board. The red and blue wires
connect to positions 4 and 5 on terminal block
P1, together with the battery snapcap wires. The
red wire is positive (position 4) and the blue
wire is negative (position 5). The snapcap wires
are red for positive and black for negative. The
green wires on the BIG BOOST™ are installed
in positions 1 and 2 on the P1 terminal block
along with the track power input wires from
the Shay engine.
Near the red and blue wires on the end of the
BIG BOOST™ board is a small block of three
pins. A tiny jumper is installed on pins 1 and 2,
which is the correct setting when you use a 9-
volt (7.2V use rating) battery along with BIG BOOST.™ If you
should decide to use a 6-volt battery with your sound system, you
will need to remove the jumper from pins 1 and 2 and place it on pins 2 and 3.
+
–
9-volt
P1
1
2
3
4
5
6
7
8
P3
red
blue
green
green
black
red
red
blue
green
green
dimensions: 2" L x 1/2" W x 1" H
battery
wires
track
wires
1 2 3
