Powerline 48 - DCC & Sound.

 

The Powerline 48 is supplied with a DCC decoder with an “on board” DCC Switch, set to DC. To operate on DCC, the 48’s Body has to be removed to set the Switch to the DCC position.

 

Removing the Body.

 

 

The buffers at each end are sprung and that the shafts extend over the chassis preventing the removal of the Body to access the decoder, after the screws have been removed.

 

Prize the buffers out carefully. The “flats” formed on the shafts during the crimping process, will no longer be there after removal. Be careful not loose the springs if you want to re-install “sprung” Buffers.

 

When decoder modifications/changes are complete, trim the Buffer shafts and glue in. If you want “sprung” Buffers, you’ll need to “crimp” the ends again using a pair of Long Nose Pliers etc.

 

Photo and text courtesy of Casula Hobbies.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.      The Body can be a “tight fit”.

2.      Remove both Couplers and the 4 body securing screws (6 screws in all).

3.      Holding the Body, gently pull the Footplate to separate the 48.

4.      If the body does not separate from the Chassis, leaver the body off using a small flat bladed Screwdriver as shown.

5.      Carefully prize up one end, a little at a time then the middle then the other end, making sure to keep the Body “parallel”.

 

 

 

 

 

 

 

 

 

 

 

CV #

Default

CV #

Default

1

3

53

0

2

8

65

255

3

1

66

128

4

1

67

4

5

1

68

8

6

1

69

12

7

107

70

16

8

32

71

20

9

0

72

24

10

0

73

28

11

0

74

33

17

0

75

38

18

0

76

43

19

0

77

48

21

0

78

53

22

0

79

60

23

0

80

67

24

0

81

74

25

1

82

82

29

6

83

90

30

0

84

98

31

0

85

106

32

0

86

115

33

16

87

125

34

32

88

137

35

64

89

152

36

1

90

178

37

2

91

194

49

16

92

212

50

8

93

232

51

0

94

255

52

0

95

128

Using the 48 in DCC.

 

The decoder is manufactured by Regal Way (CV 8 = 32) and is an “Atlas” format decoder with Tab/connections at each end. At the moment (Sep 2012), there is no Decoder Definition for this decoder in Decoder Pro.

 

The Table (left) lists the decoder’s CVs with their default values. No other decoder information is available. The decoder supports the normal motor performance CVs: CV 2 - Volts Start, CV 6 - Volts Mid, CV 5 - Volts Max and Momentum CVs 3 and 4. An adjustable Speed Table (CVs 67 to 94) is available and selected in CV 29.

 

Decoder Reset = Program CV 8 to “11”, then address loco by 3.

 

Selecting the Headlight, the White Marker Lights at that end plus the opposite end Red Marker Lights, illuminate.

 

Both the Cab Lamp and the Fan are powered by a small Circuit Board, separate to the supplied decoder, that is powered any time the 48 is on a powered section of track. This means on many DCC layouts the Fan will be rotating and buzzing all the time.

 

I found while operating the 48 on DCC, there is a small hum from the Motor, suggesting that the decoder uses low frequency PWM motor “drive”. Operate your 48 in DCC, to see if this hum is annoying enough to change the decoder to a “silent drive” decoder. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sound for the 48. 

 

Prime Mover: “In Line” 6 Cylinder Turbocharged Alco 251B.

Horn: Leslie 2 or 5 Chime.

 

The ESU Loksound Alco 251 Select Direct Part No 73702 decoder includes a 6 Cylinder 251 B Prime Mover sound complete with a Leslie 2 or 5 Chime Horn is ideal for the 48. The “Atlas” format (the same as the original decoder) of the Select Direct, makes for an easy sound decoder installation.

 

 

Body removed showing the decoder and Fan Motor. The DC/DCC Switch is at the Upper R/H corner.

 

Remove the decoder by unsoldering all the wires and spreading them apart to identify as shown below.

 

Leave the Mounting Bracket installed, making sure the screw heads are not too high to contact the decoder. I also applied insulation tape on the underside of the decoder. Clip the decoder onto the bracket.

 

Shown above, the original decoder, mounting bracket, Fan Motor and Light/Fan “electrics” Circuit Board, all removed with a speaker installed. All of the wiring is still at their original lengths (not trimmed). The 48’s wiring use’s only Red and Black wires so I’ve identified them to help for the installation of the Select Direct.

 

 

 

The wiring from the Front Headlight and Track Pick Ups in the Cab area are positioned in slots and held in place with tape.

 

The wiring is glued into place using Microscale Kristal Klear.

 

The photo shows the angled driveshaft and the very low bogie top providing space above the bogie for the original Fan and now where the speaker is installed.

 

 

 

 

 

 

 

 

 

 

 

An 18 mm MRC Round 8 Ohm Speaker including enclosure (MRC Part No 0001512) is installed above the Rear Bogie. Note the speaker cone faces to the inside of the enclosure.

The speaker is super glued to one wall and held in place with the silver tweezers while the glue dries. Two small screwdrivers are inserted between the speaker and the bogie, to provide bogie clearance.

 

 

 

 

 

 

 

 

 

 

 

 

The Select Direct clipped onto the Mounting Bracket. Using the exploded view of the 48’s wiring, solder the wires to the appropriate Tabs as shown above.

The Pick Up wires from both ends, just reach their applicable solder tabs.

 

The 48’s Head/Marker and Cabin Light LEDs have a 1,000 Ohm current limiting resistors included in their applicable assemblies, eliminating the need of installing resistors. The Black wires from the Light Assemblies are soldered to “+UB” (positive) Pads of the Select. The White Marker lights are wired to the Headlights.

 

The Select Direct provides a 2,200 Ohm resistor (identified as “222”on the decoder) adjacent to the individual Output that can be “shorted out” if necessary by “linking” the two Pads adjacent to each of the “222s”. With a total of 3,300 Ohms for each LED, I did not find the LEDs too dim. See Instruction Leaflet. 

 

The Select Direct has 6 Light Outputs. I wired the Front and Rear Red Markers to the Aux 1 & 2 Pads respectively and the Cab Light’s Black wire to the Aux 3 Pad and the Cab Light Red wire to either “+UB” Tab and operated by F4, F5 & F6 respectively by programming firstly CV 32 to 2 then CV 346 to “4”, CV 362 to “8” and CV 378 to “16” respectively. The default operation of Both Red Markers by F6 and Cab Light by F5.     

To select the 6 Cylinder sound in the Select Direct and the Leslie 2 Chime Horn, program CV 48 to “37”. For the 6 Cylinder and the Leslie 5 Chime, program CV 48 to “40”.

 

 

 

The completed overall view of the installation. For a better sound, I sealed the Fan opening with a piece of Cardboard and BluTac.

 

As with most Decoder Manuals especially Sound decoders, a comprehensive User Manuals are available via the Internet. The Select is at: http://www.esu.eu/en/downloads/instruction-manuals/digital-decoders/

 

While the Select Direct has the correct Prime Mover sound, other sound decoder that are more than suitable for the 48, are the Soundtraxx Tsunami Alco AT-1000 range. For a YouTube video demonstrating the Select and 244 sound in the 48, see: http://youtu.be/9M_-_TaQzvk

 

For a Speaker comparison, see: http://www.youtube.com/watch?v=ht6svDMfLto