MRC 0001818 User manual

G Gauge DC/DCC
Diesel Sound Decoder with
Two Prime Mover sounds
Item #0001818
Thank you for purchasing our most advanced DC/DCC
locomotive sound decoder. Combined with any DCC
System or MRC Blackbox, our true live capture digital
sound decoder will make your model railroad come to life.
•Two types of synchronized diesel prime mover sounds:
Morden large Diesel and Morden diesel switcher
•5 amp capacity
•34 different types of horns 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 read back address and CV value
•Selectable factory default speed curve
•Advanced speed table control CV67-CV94
•Kick start voltage control CV65
•3 headlight effects: Directional / rule 17 /off-dim-
bright cycle.
•7 accessory light effects: ditch lights, mars light,
gyra light, strobe light, prime strobe light and on/off
•28 accessory functions (F1-F28)
•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 CV value.
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 to 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 $15.00 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 Register Description Range Default
CV1 R1 Short address 1-127 3
CV2 R2 Start voltage 0-32 0
CV3 R3 Acceleration 0-32 0
CV4 R4 Deceleration 0-32 0
CV5 --- Top voltage 0-32 32
CV6 Speed curve select (0=linear, 1=slow
increase, 2=fast increase at slow speed 0-2 0
--- R6 Page number --- ---
CV29 R5 Basic configuration --- 2
CV7 R7 Manufacturer version number --- 32
CV8 R8 Manufacturer ID --- 143
CV17 --- Long address upper byte 192-231 192
CV18 --- Long address lower byte 0-255 3
CV19 --- Advanced consist address 0-127 0
CV49 Sound on/of f except horn that is alw ays on 0-1 1
CV50 --- Horn type (34 types) 0-33 4
CV51 --- Horn volume 0-3 3
CV52 --- Bell type (8 types) 0-7 3
CV53 --- Bell volume 0-3 3
CV54 --- Bell ring rate 0-50 3
CV55 --- Diesel rumble volume 0-3 3
CV56 --- Brake squeal volume 0-3 3
CV57 --- Dynamic brake volume 0-3 3
CV58 --- Air release volume 0-3 3
CV59 --- Air pump volume 0-3 3
CV60 --- Safety pop valve volume 0-3 3
CV61 --- Engine cooling fan volume 0-3 3
CV62 --- Coupling volume 0-3 3
CV63 --- Auto ditch lights flash with horn enable 0-1 1(enable)
CV64 --- Rail wheel clack 0-3 3
CV65 Kick start voltage 0-63 63
CV67-94 28 speed steps table while CV29.4=1 1-255 linear
CV105 --- User identification number 0-255 0
CV106 --- User identification number 0-255 0
CV113 --- Coupling fire volume 0-3 3
CV114 --- Brake release volume 0-3 0
CV115 --- Auto brake squeal enable/disable 0-1 1(enable)
CV116 --- Auto bell with horn enable 0-1 0(disable)
light mode, 0=normal headlight
1=off, dim, bright cycle, 2=rule 17
CV118 ACC1 light mode 0-6 0
CV119 ACC2 light mode 0-6 0
CV121 Ditch flash (=1) or stayon (=0) 0-1 0
CV122 --- Notch mode, 0=auto, 3=manual 0-3 0
CV123 Prime mover type (2=diesel off) 0-2 1
C124 Back emf load control on/off 0-1 0 (off)
CV125 --- Programming to "1" will restore some CV's
to factory settings --- 0
1CV21 --- When CV21=0, functions follow its ow n address.
CV21=1, functions follow the consist address ---
0CV117 0-2

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 and 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.
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 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.
Double click F0 will turn on/off sound (CV49). You can’t turn off horn which is
always on. The decoder has two types of diesel prime movers. You can use F12
to select them or select diesel off (CV121). So it can be used in an Electric Type
Traction Loco such as Trolley or GG-1. You can use F19 to select 34 different
horn sounds 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. If not, you may not be able to access all the features of the
decoder. And you have to use the CV program to setup the decoder.
The decoder default is set to automatic notch. You can program CV122 to 3 for
manual notch for realistic operation. And then use F9 to notch up and use F8 to
notch down.
If your loco has flywheels you can turn on the back emf (load control) feature by
programming CV124 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.
LIGHT EFFECT PROGRAMMING CHART FOR CV#118/119
Program CV117 to choose 3 different modes of headlight effects (0=normal
directional, 1=off/dim/bright cycle, 2=rule 17). Both ACC1 and ACC2 has 7
different accessory lights effects. Program CV #118/119 to choose the desired
light effect. CV118 for ACC1 and CV119 for ACC2. For ditch light both CV118 and
CV119 must be 0. In ditch light mode, use F3 to turn on/off and use F28 to enable/
disable flash. When you blow the horn the ditch lights will flash. The ditch lights
will remain flashing for several seconds after horn is off.
Acc1 light
common
ACC2 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
CV118/119 value ACC#1/ACC#2 Light effect
0 Ditch light
1 Gyra light
2 Marslight
3 Prime strato light
4 Single strobe light
5 Double strobe light
6on/off
Figure 2. 0001818 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 or rule 17 or cycle of dim, bright, off
Double F0 Double click F0 within 1 second will turn on/off sound (CV49)
F1 Bell on/off
F2 Horn
F3 Ditch lightg on/off or Acc1 light on/off with 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 while CV122=3
F10 Rail wheel clack (only moving)
F11 Traction air compressor
F12 Change prime diesel mover type
F13 Acc2 light on/off'short air release
F14 Coupling 2
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 Associated loco sound
F21 Change bell volume (use F1 to turn off bell after adjustment)
F22 Change horn volume
F23 Change diesel rumble volume
F24 Coupling 3
F25 Long air release
F26 flange noise 3
F27 sand drop
F28 Ditch lights flash enable/disable (CV121) with Air release