Inc N Scale Function Decoder - Manual

Parts List

1 SDN144K1E Decoder drop-in with Sound FX™

1 Factory wired 13mm round 8 Ohm speaker and 100 uF capacitor.

1 Instruction sheet

Installation Information

See the Digitrax Decoder Manual for complete decoder test procedures, instal-

lation instructions, programming and technical information. Digitrax manuals

and instructions are updated periodically. Please visit www.digitrax.com for the

latest versions, technical updates and additional locomotive-specific installation

instructions. . Machining or modification of frames requires some skill and

patience, as they are easily damaged. After market pre-machined frames may

be available for some locomotives.

1. Carefully remove the Kato SD40-2 shell parts. Remove the factory analog

light PCB, trucks, drive shafts, motor and all parts and carefully save these

in the correct order for re-installation. This should leave a bare frame ready

to be modified to accommodate the speaker.

2. The factory 13mm speaker is mounted in the diesel tank in this example

installation in Figure 1. Carefully open an e.g. 1/2” hole 0.150” deep

through the diesel tank area of the bare frame as shown in Figure 2. If

using a drill or mill, be sure to clamp the frames correctly. With a dremel

grinder etc., open up the full e.g. 0.150” depth of the hole diameter so that

the 13mm speaker will fit snugly and clear the diesel tank cover. Using a

Complete Train Control

Run Your Trains, Not Your Track!

Figure 1: SDN144K1E installation in Kato N- SD40-2 frame preparation.

track pickup springs

N scale SD40-2 shell

SDN144K1E (100uF cap not shown)

motor saddle area

13mm

Factory

speaker

Kato SD40-2 frame

Cab-clip