Function
Idle/Moving
F1
Bell on/off
F2
Horn
F3
air release
F4
Coupling 1
F5
Brake release (idle) / brake squeal (moving)
F6
Dynamic brake on/off
F7
Air hose firing/uncoupling lever
F8
3 times will shut down when in idle / Manual notch down
F9
Engine cooling fan / Manual notch up
F10
Rail wheel clack (only moving)
F11
Traction air compressor
F12
Change prime diesel mover type (CV123, 6 types)
F13
Master volume reduce by 1 / air release when reach minimal
F14
Master volume increase by 1/ air release when reach maximal
F15
Air compressor
F16
Flange squeal
F17
Air release
F18
Change bell type (8 types plus off)
F19
Horn type select (total 22 different horns plus off)
F20
Associated loco sound
F21
Change bell volume and turn on the bell
F22
Change horn volume
F23
Change diesel rumble volume
F24
Safety valve pop
F25
Air release
F26
Flange noise
F27
Sand drop
F28
Air release
CV123 Prime
mover
SD39, SD40, SD40A, SD40-2, SD40T-2, SD45. SDP45, SD45X, SD45-2,
SD45T-2, F45, FP45, DDA40X, GP15T, GP39, GP39-2, GP40, GP40-2
SW1000, SW1001, SW1500, SW1504, MP15DC, MP15AC, MP15T,
GP38, GP38-2, SD38, SD38-2, GP15AC, GP15-1
2
EMD710 SD70AC,
SD70M-2
3
ALCO 244
4
ALCO 539T
F2A/B, F3A/B, F7A/B, F9A/B, BL1, BL2, FP7, FL9, FT, GP7, GP9, GP18,
GP28, E6, E7, E8, E9, NW2, NW3, NW4, SW1, SW7, SW8, SW9, SW600,
SW900, SW1200
5
EMD567
0
EMD645E
1
EMD645
Suitable for the locomotive
RS-3, PA1, PB1
S-2, S-4, RS-1, RSC-1, RSD-1, DL-105, DL107, DL-108, DL-109, DL-110
INSTALLATION
t is quite a challenge to install a decoder into a loco. You should have some basic
electrical knowledge and soldering skills. If you do not have the above require-
ments, please ask the dealer for help in installation.
Figure 1 shows the electrical circuit of most standard locos. The terminals of the
motor and light(s) are directly connected to the wheel pickup. Each type of loco
has its own method of electrical pickup and distribution. The connection between
the wheels, motor and light(s) could be wires, clips, the body or chassis, PC board
or any other type of conductor. First, figure out your loco’s electrical wiring and
how to disconnect (isolate) the motor and light(s).
Figure 1. Connection of standard locomotive.
Note: The ‘X’ marks indicate
where to disconnect (isolate).
The decoder will be inserted between the wheel pickup and the motor.
Figure 2 shows how to wire the decoder. After disconnecting the motor terminals
from the pickup, connect the red wire to the right side pickup and the black wire to
the left side pickup. Connect the orange wire to the motor terminal that was
originally connected to the right pickup. Connect the gray wire to the motor’s other
terminal. Connect the front light to the blue wire and the white wire. Connect the
rear light to the blue wire and the yellow wire.
The blue wire is the common terminal for lights and accessory functions. You may
use the black wire or the red wire to replace the blue wire. This is useful when
isolating one of the light terminals from the pickup is difficult. Wiring the bulb this
way will make the light dimmer. If your loco has only a front light, you should
connect the white and the yellow wires together. If your locomotive has a NMRA 8
pin receptacle, remove the dummy plug. Match first pin and plug in the decoder.
ABOUT SPEAKER
The decoder comes with 13mm speaker fitting in wide body N scale loco. If you
use it in a narrow body loco you have to replaced the 13mms with 10mm speaker.
If you use it in a HO loco you should replaced the 13mm speaker with big speaker
(28mm or 16x36mm) to improve the sound effect.
DCC OPERATION
The decoders have been factory programmed with address #3, 28/128 speed
steps and maximum top voltage. Select the “Run” mode of your DCC system and
select or acquire address #3. Move up the throttle and the loco should move.
The decoder has 6 types of diesel prime mover sounds. You can use F12 to
change the prime mover sounds. You can also program CV123 to value of 0 to 5
to select the following primer mover for matching your diesel engine. The CV123
table shows the 6 prime mover sounds and their associated locomotive types.
The decoder has a start up and shut down feature. If the loco has been previously
shut down, you have to start up the engine by simply pressing any numbered
function button. To shut down the engine you must bring the loco to idle and then
press F8 three times.
This decoder has 22 different horns. You can use F19 or program CV50 to
select these 22 horns. You can also use F18 or program CV52 to select different
8 bell sounds.
Most of the sounds have their own volume control CV. There is also a master
sound volume control CV49. Also F13 will reduce the master volume by 1 (you
will hear an air release when you reach CV49=1). Pressing F14 will increase
volume by 1 (you will hear an air release when you reach CV49=16). Program-
ming CV49 to 0 will shut the sound off.
The decoder is defualt to automatic notching. You can program CV122 to 3 to set
manual notching for realistic operation. And then use F9 to notch up and use F8 to
notch down. This simulates the way a real locomotive operates.
This decoder is equipped with adjustable back EMF closed loop speed control. Its
proportional gain (CV113), integral gain (CV114) and derivative gain (fixed) are
pre-tuned for most locomotives. We recommend that you do not change these
settings. Too much gain may cause the motor to oscilate (become unstable). Too
little gain may cause slow response. Please get some basic knowledge of PID
feedback control before trying to adjust CV113/114.
There are many more program features available with this decoder. Please refer
to the CV Chart to explore other features of the decoder.
Note: Bell, Dynamic Brake and Rail Wheel Clack cannot play at the same time. If you
activate the Bell sound [F1], while either the Dynamic Brake or Rail Wheel Clack
sounds are activated, the Bell sound will override the other 2 sounds. Rail Wheel
Clack cannot play while the loco is in idle. When you turn off Dynamic Brake and
Rail Wheel Clack sound there will be one second delay.
Right side pickup
Front
light
Motor
Rear
light
Left side pickup
X X
X
X
X
X
black
13mm speaker
red
orange
gray
yellow
white
left
right
blue
headlight
rear light
