Inc Sound Module Decoder - Manual

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4.2 The decoder runs for a while & then just stops

If a decoder is hot to the touch, it may be overheating

It is normal for decoders to warm up while in use but they should not be hot

to the touch. Be sure the decoder is installed so that it can shed heat. Don’t put

decoders near the motor or lights.

Check for localized track problems

Be sure you are not on a section of track that is not powered or does not have

enough power. Use the Quarter trick described below to diagnose this condi-

tion.

4.3 Loco operation is jerky & erratic

Is the track clean and are the power feeds reliable?

Are the locomotive wheel pickups and internal electrical connections reliable?

The majority of intermittent operation faults can be traced to bad connections

and poor or noisy wheel pickups on locomotives. Series 6 decoders can use

a Power Xtender module to improve operation of both motor and sound in the

presence of power interruptions.

4.4 “Strange” locomotive light operation

If you can’t control the operation of the lights in your locomotive with your

throttle (in default 128, or 28 speed step mode), be sure that the decoder is

programmed for advanced 28 speed step mode. Your Digitrax decoder was

shipped programmed to 128 speed step mode. You may have changed your

decoder’s programming when performing the decoder test procedure. In any

case, if you are not able to turn the locomotives lights on and off, you will need

to change CV29 to 006 or another appropriate value that sets the decoder to

advanced 28/128 speed step mode.

If you can’t turn the lights on and off or the lights blink when you run the loco,

make sure you are not running a standard (14 speed step operation) decoder

trying to process 28 speed step Advanced packets. Be sure that the decoder and

command station are using the same mode by programming CV29 to an appro-

priate value or by changing the command station’s operating mode to match

the decoder.

4.5 The locomotive won’t move at all

Does the locomotive have any mechanical binding problems? Is there any-

thing inside the loco that is preventing the motor from turning? Are any wires

shorting or touching moving parts?

When you are operating a Digitrax Command Station set up to run in 128

speed step mode, there are some decoders that only understand 14 speed step