TM
New Dimensions in Digital Sound Technology
INSTALLATION GUIDE
USA Trains GP30
Sierra Sound System Installation Notes
Overview
This application note describes how to install your Sierra sound
system in the USA Trains GP30. Please read through the entire
document to become comfortable with the steps involved
before beginning the installation. No major mechanical
modifications are required and the entire process can be
completed in a few hours.
Tools You Will Need
■
#2 Phillips Screw Driver
■
Wire cutters
■
Wire strippers
■
25W Solder Iron
■
Rosin core solder
■
1/4” Drill Bit
■
Electric Hand Drill or equivalent
■
Superlock Fastener Radio Shack #64-2360
■
2 Sided Foam Tape Radio Shack #64-2343
Figure 1
Figure 2
Installation
1.
Locomotive Disassembly
Use a foam pad or thick towel to support the long hood portion of
the diesel and turn it upside down. Be careful of the horns,
whistles, or other details that may be on top of the locomotive.
2.
Remove the four screws that hold the fuel tank (Figure 1) to the
bottom of the frame. Remove the fuel tank.
3.
Remove fourteen screws that hold the cab and body shell to the
frame. There are screws under the trucks. Remove the side frames
to move the wheel assemblies out of the way and access the
remaining screws (Figure 2). Remove the screws that hold the cab
to the frame.
4.
Remove the body shell and cab.
5.
Cut two 0.30”x1.00” strips of double-sided foam tape. Place one
strip along the bottom and the other along one side of the battery.
Snugly press the battery against the floor and post as shown in
Figure 3. Be sure to allow clearance for the body shell.
6.
There is an unused plug on the USA PC board labeled “SPEAK1”.
Solder a red wire directly to the right plug post and a green wire to
the left. The right and left posts connect to the locomotive’s right
and left track pickups respectively. Secure each with heat shrink
tubing (Figure 4).
Figure 3
