MRC 0001827 Quick Start Manual Download Page 1

N Gauge DC/DCC

Alco Diesel Sound Decoder

Item  #0001827 drop-in for Kato PA1

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 de-
coder will make your model railroad come to life.

AlCo 244 prime mover  plus 3 other synchronized prime
mover  types

1.0 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

Ultra slow motion control

Back EMF load control

Supports full read back of decoders

Selectable factory default speed curve

Advanced speed table control CV67-CV94

Kick start voltage control CV65

Easy re-mapping of certain factory selected funtions

3 headlight effects: Directional / rule 17 /off-dim-
bright 3 states cycle

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

13mm speaker included

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
Reset:

 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.

 This

decoder should perform well with all DCC systems. The maximum DCC output
should be less than 15 V. If the locomotive does not respond to commands, it
may have lost its address. Please reset the decoder or reprogram it address. 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

.

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

This decoder carries a 6 month warranty against factory defects. This warranty

does not

 include abuse, misuse, neglect, improper installation, or any modifications

made to this decoder, including but not limited to the removal of the NMRA plug if
applicable. If it should become necessary to return the decoder for warranty repair/
replacement, 

please include a copy of the original sales receipt

. Please

include a letter (printed clearly) with your name, address, daytime phone number,
and a detailed description of the problem you are experiencing. Please also include
a check or a money order for $8.00 to cover return shipping and handling. If the
decoder is no longer considered under warranty, then please include a check or a
money order for $29.00 to cover the cost of repair or replacement and return
shipping and handling. 

Be certain to return the decoder only.

Any questions regarding Warranty Policy can be directed to our Customer
Service Department by calling 732-225-6360 between the hours of 8:30am
and 6:00pm EST, or by emailing: [email protected]

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

12

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

27

27

CV8

R8

Manufacturer 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

CV37

0=normal, 1= F3 and F4 exchange

0-1

0

CV39

0=normal, 1= F5 and F6 exchange

0-1

0

CV42

0=normal, 1= F8 and F12 exchange

0-1

0

CV49

All sounds on/off except horn that is alw ays on

0-1

1

CV50

---

Horn type (34 types) 

0-33

17

CV51

---

Horn volume

0-3

3

CV52

---

Bell type (8 types)

0-7

2

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

CV64

---

Rail w heel clack

0-3

3

CV65

Kick start voltage

0-63

63

CV67-94

28 speed steps table w hile CV29.4=1

1-255

linear

CV113

---

Coupling fire volume

0-3

3

CV114

---

Brake release volume

0-3

0

CV115

---

Auto brake squeal enable/disable

0-1

1(enable)

Light mode, 0=normal headlight

1=off, dim, bright cycle, 2=rule 17

CV120

Ultra slow  enable*

0-1

1

CV122

---

Notch mode, 0=auto, 3=manual

0-3

0

CV123

Prime mover: 0=SD60, 1=F, 2=Alco, 3=SD70, 4=off, 

w ith traction air compressor cycling randomly 

0-4 (4=off)

3(SD70)

CV124

Back emf load control on/off

0-1

0(off)

CV125

---

Programming to "1" w ill restore some CV's to factory 

settings

---

0

0

CV21

---

When CV21=0,  functions follow  its ow n address. 

CV21=1, functions follow  the consist address

---

0

CV117

0-2

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