Inc Sound Module Decoder - Manual

© 2017 Digitrax, Inc.
www.digitrax.com- 18 -
3.7 Testing Decoders Before Installation
Digitrax tests each decoder prior to shipping. That said, we strongly recom-
mend testing by the installer before installation. The test procedure shows you
how the decoder works and how to hook up the wires. Testing verifies that the
decoder is working before you install it in a loco. Use the LT1 that came with
your Digitrax Starter Set to perform the test as follows:
LT1 Diagram
(Top view-clip on top)
Wire order
in RJ12 plug
Blue
Yellow
Green
Red
Black
White
HARNESS LT1 TESTER
Decoder Testing Diagram
R
FUNC MU SWCH
R
c
LOCO
Y +
L
t
CBABACK
OPTN CLOCPWR
10 11 12
1 2 3
4 5 6
ENTER0EXIT
7 8 9
DISP
PROG
EDIT
FIND
_
R
L
DT402
N
EMRG
STOP
Note: Recommended decoder input voltage is 12V DC peak
Digitrax
Throttle
must be
plugged
in during
LT1 testing
Protection Resistor
100 Ohm/2Watt