MRC 0001819 User manual

G Gauge DC/DCC
Steam Sound Decoder with
12 different chuff sounds
Item #0001819
Thank you for purchasing our most advanced DC/DCC
locomotive sound decoder. Combined with any DCC
System or the MRC Blackbox, our true live capture digital
sound decoder will make your model railroad come to life.
•Twelve types of synchronized chuff sounds
•Double chuff enabling
•5 amp capacity
•34 different types of whistles and 8 types of bells
•Programmable individual sound volumes
•Programmable either 2-digit or 4-digit addresses
•Programmable start voltage and top voltage
•Programmable acceleration and decelaration rates
•Programmable 14, 28, 128 speed steps
•Supports full read back of address and CV values
•Selectable factory default speed curve
•Advanced speed table control CV67-CV94
•Kick start voltage control CV65
•Directional Head lights
•Mars light and firebox flicker
•28 accessory functions (F1-F28)
•Supports full read back of CV’s
•Supports advanced consisting (CV19)
•Supports programming on the main (OPS mode)
•Compatible with NMRA DCC standards
•Complies with Part 15 of FCC Rules
•40 mm speaker included
•Dimensions: 70.5mm x 34.0mm x 11.4mm
PROGRAMMING
This decoder supports all program modes and read back features. With MRC
Prodigy Advance DCC you can read its address and all CV values.
Printed in USA
SPEED TABLE CV67-CV94 FOR 28 SPEED STEPS
When CV29’s bit 4 is set to “1” it will use the speed table formed by CV67-CV94
to control speed (motor voltage). It allows you to setup each speed for all 28
speed steps. First, program CV29 to 18 for short addresses (1-127) or program
CV29 to 50 for long addresses (128-9999) to enable speed table control. Then
select throttle to 28 speed steps and run your loco at speed step 1. Use program
CV on the main to change CV67’s value (1-255) to adjust step 1’s speed. The
kick voltage, CV65 is only applied when the speed step changes from 0 to 1. You
should switch between 0 to 1 many times to check step 1’s speed. When done
with CV67, select speed step 2 and program CV68. CV68’s value must be
greater then CV67’s. When done with CV67-CV94, use read back CV to make
sure their values are in increasing order.
Note: When using MRC Prodigy DCC to program addresses it will automatically
disable the speed table (set CV29’s bit 4 to “0”). Programming CV125 to 1 will
also disable the speed table and re-program CV67-CV94 to a default linear
speed setting.
TROUBLE SHOOTING
This decoder should perform well with all DCC systems. The maximum DCC
output should be less than 21 V. If the locomotive does not respond to com-
mands, it may have lost its address. Please re-program the address and program
CV19 to 0 (disable consist). If it responds slowly, you should clear its momentum
by reprogramming CV3 and CV4 to zero. If step 1’s speed is too high, you should
program start voltage, CV2 to zero. If its top speed is too slow, program top
voltage CV5 to 31. You should also clean the track to improve electrical pickup.
Read your DCC system manual to learn how to program and operate the decoder.
For more information about registers/CVs and their functions, please refer to the
NMRA DCC Standard & Recommended Practices, RP-9.2.2. This is available
directly from the NMRA or their website at www.nmra.org. Whenever the
decoder doesn’t work please use the program track to program CV# 125 with
value 1 to restore the decoder to factory settings. This should bring the decoder
to life with address #3.
FCC COMPLIANCE
This device complies with part 15 of the FCC Rules. Operation is subject to the
following two conditions. (1) This device may not cause harmful interference,
and (2) This device must accept any interference received, including interfer-
ence that may cause undesired operation.
RETURN PROCEDURE
If it should become necessary to return your decoder, unplug the decoder and
return the decoder only. Include a letter (printed clearly) with your name,
address, a daytime telephone number, and a detailed description of the problem
you are experiencing. Please include a $25.00 check to cover shipping and
handling. Be certain to return only the decoder.
Warranty does not include abuse, neglect, or using this product for
anything other than it’s intended purpose. Warranty coverage will be
handled on a case by case basis, and other charges may apply for
repair/replacement of the product.
Send the decoder to:
Model Rectifier Corporation
Attn: Parts & Service
80 Newfield Avenue
Edison, NJ 08837-3817 U.S.A
CV Re g is te r De s cr ipt ion Ran g e De f au lt
CV1 R1 Short address 1-127 3
CV2 R2 Start voltage 0-32 0
CV3 R3 Acceleration 0-32 8
CV4 R4 Deceleration 0-32 8
CV5 --- Top voltage 0-32 32
--- R6 Page number --- ---
CV29 R5 Basic conf iguration --- 2
CV7 R7 Manuf acturer version number --- 19
CV8 R8 Manuf acturer ID --- 143
CV17 --- Long address upper byte 192-231 192
CV18 --- Long address low er byte 0-255 3
CV19 --- Advanced consist address 0-127 0
CV 49 Master volume control(0=off, 1=low ,
2=mid,3=max) 0-3 2
CV50 --- Whistle type 0-33 4
CV51 --- Whistle volume 0-3 3
CV52 --- Bell type 0-7 3
CV53 --- Bell volume 0-3 3
CV54 --- Bell ring rate 0-50 10
CV55 --- Chuff type (12 types) 0-11 0
CV56 --- Chuff volume 0-3 3
CV57 --- Brake squeal volume 0-3 1
CV58 --- Air release volume 0-3 3
CV59 --- Blow er hiss volume 0-3 3
CV60 --- Fire box door volume 0-3 3
CV61 --- Injector volume 0-3 3
CV62 --- Coupling volume 0-3 3
CV63 --- Air pump volume 0-3 0
CV64 --- Rail clack volume 0-3 3
CV67-94 28 speed steps table w hile CV29.4=1 1-255 linear
CV105 --- User identification number 0-255 0
CV106 --- User identification number 0-255 0
CV112 --- Conductor volume 0-3 3
CV114 Air pump type 0-3 3
CV115 --- Auto brake squeal enable/disable 0-1 1(enable)
CV118 Shoveling volume 0-3 3
CV119 --- Coupling f ire volume 0-3 3
CV120 --- Chuff rate 0-30 12
CV121 --- Chuff start point 0-7 3
CV122 --- Double chuff enable 0-1 1(enable)
CV123 --- Back emf on/of f (1=0n, you must have a motor
load to get chuff sound) 0-1 0
CV125 --- Factory default setting, program it to1 w ill restore
all the CV to default settng --- 0
CV 2 1 - - - 0
When CV21=0, all accessory function w ill follow
its ow n address. When CV21=1, all functions w ill
follow the consist address
0-1

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 Advance2DCC 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 Injec tor
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 chuff volume
F24 Chuff type select (total 12 types)
F25 Air release
F26 Sand dropping
F27 Associated loco sound
F28 Associated loco sound