Inc Sound Module Decoder - Manual

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transponding. Earlier versions of Digitrax decoders may need to

have a load resistor installed for transponding to work. Please con-

sult instructions for those specific decoders.

3. In some situations it may be beneficial to add a resistor between the

blue and white leads to improve transponding effectiveness. If you

are running zones where the average current draw is more than 3

amps, you may need to connect an additional 100 ohm 1/8 watt

resistor in series with a 0.1uF ceramic capacitor across the white and

blue decoder outputs.

4. Enable transponding by programming CV61 to a value of 02 or 03.

5. Place the loco on the track set up for transponding, select it and run it

back & forth. Verify that transponding is working. If transponding is

not working, be certain that the resistor described above is installed

properly between the white and blue outputs of the decoder.

6. Pick up the loco and turn it around on the track, select it and run it

back and forth again. Verify that transponding is working in that ori-

entation as well. If transponding is not working, be certain that the

resistor described above is installed properly between the white and

blue outputs of the decoder.

NOTE: Locos must be selected in the system for transponding to work.

8.7.2 LED/Lamp Algorithm Selector

Beginning with Series 6 decoders, Digitrax FX effects are optimized for either

LEDs or incandescent lamps. Since these two types of lighting devices have

different characteristics, Digitrax has set up two selectable algorithms for

operating the devices. Some users like lamps better than LEDs and vice versa.

Many new production locomotives have been produced with LEDs. You have

the option to use either.

8.7.3 CV61 Values: Transponding & Lighting Algorithm

You can set up whether transponding is enabled or disabled and which light-

ing algorithm you use in CV61 as shown in the following table. The factory

default is 00, transponding off and LED algorithm selected.

TABLE IX: CV61 Values Transponding and Lighting Algorithm

CV 61

Value

Transponding LED or Lamp

00 O LED

01 O Lamp

02 On LED

03 On Lamp