User Manual

INSTALLATION
It is quite a challenge to install the decoder in your loco. You should have some
basic electrical knowledge. If you do not have, please ask the dealer for help in
installation.
Figure 1 shows the electrical circuit of most standard locos. The terminals of the
motor and lights are directly connected to the wheel pickup. Each type of loco
has its own method of electrical pickup and distribution. There is no standard
rule for installing decoders. It is always better to consult the loco manufacturer
on how to install a decoder in your particular loco. First, figure out your loco’s
electrical wiring and how to disconnect (isolate) the motor and light(s). Label all
wires before you disconnect them.
Figure 1. Connection of standard locomotive. Note: The ‘X’ marks indicate
where to disconnect (isolate).
Figure 2. How to wire the decoder.
The decoder will be inserted between the wheel pickup and the motor. After
disconnecting the motor terminals from the pickup, connect the right side pickup
wires to the green terminal # 1. and connect the left side pickup wires to the
green terminal # 4. Connect the right motor terminal to the green terminal # 2.
Connect the left motor terminal to the green terminal # 3. The wires must be
stripped 5 mm, well twisted, and tinned with solder before you connect them to
the green terminals. Make sure there is no short circuit among these four
terminals. Connect the front and rear lights to the headlight output. The middle
terminal is common. Connect the accessory lights to the accessory output. Again
the middle terminal is common. Use double-sided sticky tape to place the decoder
in a safe place. The decoder can’t touch any metal part or bare wires. The 40
mm speaker should have an enclosure made for a better sound quality.
If you have a 1.5V bulb or LED, you should connect a 2k ohm resistor in series to
one of the leads to limit current.
MAKING A TEST TRACK
We strongly recommend building a test track with a 27 ohm resistor to limit
current. Only test your installed decoder on the test track. The test track will
reduce the chance of damaging your decoder due to an incorrectly installed
decoder. Note- The test track is not your program track.
TESTING
The decoder has been programmed to address #3, 28/128 speed steps. To test,
place the loco on the test track. Select address #3 and 28 speed step. Move up
the throttle and the loco should move. Push the light button [F0] and headlight
should come on. Change the direction of the loco and the loco should change
direction. The loco cannot reach full speed, due to the resistor. If all the above
occurs, you passed the test. Congratulations! Do not run the loco for an
extended period of time on the test track or the resistor will overheat. If your
installed decoder does not pass the test, find the problem, correct it and test it again.
As long as you test the decoder on the test track there is little chance of damaging
the decoder. This is why the test track is so important.
OPERATION
The decoder has twelve types of chuff sounds. You can use F24 to select them
or F12 to turn the chuff off,with the whistle always remaining on. With our
unique double chuff enable, (CV 122), you can also have 12 articulated chuff
sounds. You can use F19 to select 34 different whistles, and use F18 to select 8
different bell sounds. With MRC Prodigy Advance
2
DCC which has 28 functions,
you can easily setup and access all the decoder’s functions. With all other DCC
systems you have to use CV programming to setup the decoder.
If your locomotive has a Mars Light, use acc 1 light for hook up. The Mars Light
flash rate can not be changed. If you want your locomotive to have a firebox
flicker, use acc 2 light for hook up. The firebox flicker rate can not be changed.
If your loco has flywheels you can turn on the back emf (load control) feature by
programming CV123 to 1. Otherwise don’t turn on back emf.
There are many more program features available with this decoder. Please refer
to the CV Chart to explore other features of the decoder.
The decoder can also be operated by a regular DC power pack. This will give
you synchronized engine sounds only. If you wish to enjoy the full array of
sound functions using your DC power pack, the unique MRC Blackbox (item
#0001050) for DC operation will allow you to control all of the sounds in your
sound equipped locomotives. And, the MRC Blackbox is easy to setup and use.
Note: Bell, Dynamic Brake, and Rail Wheel Clack cannot play at the same time.
Acc 1 light
common
Acc 2 light
Right side pickup
Front
light
Motor
Rear
light
Left side pickup
X X
X
X X
X
Figure 3. Diagram of test track
DCC base unit
Power supply
Test track
27 ohm resistor
Figure 2. 0001819 decoder wiring diagram
1
2
3
4
right side pickup
motor’s right terminal
motor’s left terminal
left side pickup
headlight
common
rear light
speaker
Function Idle/Moving
F0 Headlight on/off
F1 Bell on/off
F2 Whis tle
F3 Air release/ mars light on/off
F4 Coupling
F5 Brake release (idle) / brake squeal (moving)
F6 Conductor w hile idle/'Rail w heel clack w hile moving
F7 Fire box open and close
F8 Injector
F9 Metal crank sound on/off (moving), steam associated sound (idle)
F10 Water injector
F11 Blow er hiss
F12 Sound on/off
F13 Short air release/ firebox flicker on/off
F14 Air hose firing/uncoupling lever
F15 Flange noise
F16 Shov eling
F17 Coal auger
F18 Change bell type (use F1 to turn off bell after adjustment)
F19 Whistle type select (total 34 different ones)
F20 Bell rate change (use F1 to turn off bell after adjustment)
F21 Change bell volume (use F1 to turn off bell after adjustment)
F22
Change w histle volume
F23
Change chuf f volume
F24 Chuff type select (total 12 types)
F25
Air release
F26
Sand dropping
F27
Associated loco sound
F28
Associated loco sound