Inc Sound Module Decoder - Manual

www.digitrax.com- 69 -

Using Digitrax SoundLoader and your PR3 Xtra, you can change the sound

projects your decoder plays. SoundLoader runs on your PC and connects

to your sound decoder using the Digitrax PR3 Xtra programmer. With

SoundLoader you can easily manage the sound project files your decoders uses.

If you simply want to browse inside sound projects, you can use SoundLoader

without a PR3.

11.1 Sound Decoder Installation

Sound decoder installation takes more space than standard decoder installation

because of the speakers, bafes and sound hold up capacitors that are needed

to successfully produce consistent sound in a real world layout environment.

Wired sound decoders have sound harnesses in addition to the regular decoder

installation harnesses:

10 Pin Sound Harness

for 6 Series HO Decoders

Pin 1 – Brown – F3

Pin 2 – Red – Not used

Pin 3 – Red – speaker (+ polarity)

Pin 4 –Yellow – F4

Pin 5 – Green – not used

Pin 6 – Blue – to sound cap +

Pin 7 – Violet – not used

Pin 8 – Black – speaker (– polarity)

Pin 9 – White – cam input (steam)

Pin 10 – Black – to sound cap -

6 Pin Sound Harness

for 6 Series N Scale Decoders

Pin 1 – Grey-Cam Input (Steam)

Pin 2 – Red – speaker (+ polarity)

Pin 3 – Black-speaker (- polarity)

Pin 5 – Red-Capacitor (+ polarity)

Pin 6 – Black-Capacitor (- polarity

11.1.1 Speaker and Baffle Installation

The sound performance of any sound decoder depends on the speaker(s), how

it is installed and the bafe or rear enclosure. Your Digitrax SoundFX decoder

was equipped with speaker at the factory. You may choose to use a different

speaker as long as it does not exceed the decoder’s specications. Some speak-

ers come with bafes and others do not. Check the installation instructions for

the particular decoder you are using. If your decoder has a box speaker, it is al-

ready mounted in a bafe however, additional bafes or other mounting systems

may be used to improve sound performance.

Bafes isolate the speaker diaphragm’s front sound waves from the rear sound