Function
Idle/Moving
F0
Headlight on/off or rule 17 or cycle of dim, bright, off
Double F0
Sound all on/off except horn (F2)
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
Click 3 times during idle will shut down / notch down while CV122=3
F9
Engine cooling fan / notch up w hile CV122=3
F10
Rail w heel clack (only moving)
F11
Traction air compressor
F12
Change prime diesel mover type (2 types and diesel off)
F13
Air release
F14
Coupling crash
F15
Air pump
F16
Associated loco sound
F17
Flange noise 1
F18
Change bell type (use F1 to turn off bell after adjustment)
F19
Horn type select (total 16 different horns)
F20
Reverser gear
F21
Change bell volume (use F1 to turn off bell after adjustment)
F22
Change horn volume
F23
Change diesel rumble volume
F24
Coupling 2
F25
Loco associated sound
F26
Flange noise 3
F27
Flange noise 4
F28
Short air release
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 in use, 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.
Although there is a 32 ohm speaker included, the amplifier can handle 8 or 16
ohm speakers, if you wish to change it.
INSTALLATION
Your new MRC 0001806 Sound Decoder will virtually “drop-in” to a Kato SD40-2
diesel locomotive. Although easy, please follow instructions carefully.
Remove the locomotive body following Kato’s instructions being careful not to bend
any of the motor contact tabs. There are two motor contact tabs attached to the
original PCB. Remove these two tabs and set aside, you will need to install them on
the decoder board in the same location. Carefully slide and lift the Kato PCB to the
rear of the chassis, removing it completely. After following the steps below to
isolate the chassis, the 0001806 sound decoder is installed in place of the Kato
PCB.
First, using
electrical or equiv plastic tape
, carefully tape the chassis in the
areas as indicated (See fig 1 & 2) to isolate the decoder from the chassis. This
must be done to prevent damage to the decoder due to a short circuit between
chassis halves and the decoder. Any part of the decoder except the four pickup
tabs touching chassis will damage the decoder. Align the decoder and carefully
insert it in the slots in the chassis. Gently press down on the rear (speaker side)
of the decoder while sliding it into position. Re-install the motor contacts tabs
removed earlier. Ensure the vertical brass contacts (on the decoder) cover the thin
vertical motor contacts. The motor, and decoder contacts must not touch the loco
chassis. Use a multi-meter to check and make sure these is no continuity
between motor terminals and the two chassis halves. Test the loco before
replacing the body. (See section on making a test track).
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 ex-
tended period of time on the test track or the resistor will overheat.
I
f 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 start up and shut down features. If the loco was previously
shut down you have to start up the engine. Press any function key to start up the
engine before operating the loco. To shut down the engine you must bring the
loco to idle and then press F8 three times.
The decoder is programmed to the default SD40 diesel prime mover sound. There
is a second diesel prime mover sound you may enjoy. You can use F12 to select
either prime mover sound or “off”. You can use F19 to select 16 different horn
sounds and use F18 to select 8 different bell sounds. With MRC Prodigy Ad-
vance
2
DCC which has 28 functions, you can easily setup and access all the
decoder’s functions. If not, you may not be able to access all the features of the
decoder. If you DCC system allows CV programming, you would have to use this
type of programming to access all the features of the decoder.
The decoder default is set to automatic notch. You can program CV122 to 3 for
manual notching for realistic operation. And then use F9 to notch up and use F8
to notch down.
If you don’t have DCC system, you have to use the MRC Blackbox (item
#0001050) for the DC operation. It will allow you to control all of the sounds in
your sound equipped locomotives. The MRC Blackbox is easy to setup and use.
LIGHT EFFECT PROGRAMMING CHART FOR CV#117
Program CV117 to choose 3 different modes of headlight effects (0=normal
directional, 1=off/dim/bright cycle, 2=rule 17).
CAUTION:
The decoder must be isolated as shown. Apply electrical tape or plastic
equiv.) tape in the areas shown in dark area to prevent the electrical
contacts from touching the chassis and damaging the decoder.
There are many more program features available with this decoder. Please
refer to the CV Chart to explore other feature
Tape these six areas
Chassis Slots
Chassis Slots
Fig 1.
Vertical brass decoder contact
vertical motor contact
(must be positioned as
shown)
Truck/Chassis contact
Speaker location
directly under chip on
top of tape
Fig 2.
DCC base unit
Power supply
Test track
27 ohm resistor
Figure 4. Diagram of test track