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MRC 0001957 - User Manual

MRC 0001957
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CV Range Default
CV1 1-127 3
CV2 0-32 0
CV3 0-32 0
CV4 0-32 0
CV5 0-32 32
CV29 --- 2
CV7 --- 32
CV8 --- 143
CV17 192-231 192
CV18 0-255 3
CV19 0-127 0
CV21 0-1 0
CV49 1-16 16
CV50 0-22 13
CV51 0-15 12
CV52 0-6 3
CV53 0-15 12
CV54 0-50 3
CV55 0-15 12
CV56 0-15 7
CV57 0-15 12
CV58 0-15 12
CV59 0-15 12
CV60 0-15 12
CV61 0-15 12
CV62 0-15 12
CV64 0-15 12
CV65 0-63 63
CV67-94 1-255 linear
CV105 0-255 0
CV106 0-255 0
CV 112 0-15 12
CV 113 0-31 20
CV 114 0-31 10
CV115 0-1 1(enable)
CV 116 0-15 12
CV117 0-255 200
CV 122 0- 3 3
CV 123 0- 5 0
CV124 0-255 160
CV 125 0- 1 0
Back EMF Load control intensity (0=off)
Set it to1 to restore some factory default CV settnings
Long address upper byte
Long address low er byte
Advanced consist address
Diesel notch mode, 0=auto-notch, 3=manual notch
Prime mover type, 6 types
Flange squeal volume
Light brightness
User identification number
Sand dropping volume
Auto brake squeal enable/disable
Back EMF Load control proportional gain Kp
Back EMF Load control integral gain Ki
Rail w heel clack volume
Kick start voltage
28 speed steps table w hile CV29.4=1
User identification number
Brake squeal volume
Master volume c ontr ol
Horn type
Horn volume
Bell type
Safety pop valve volume
Engine cooling fan volume
Coupling volume
CV21=0, all accessory function w ill follow its ow n address.
CV21=1, all functions w ill follow the consist address
Dynamic brake volume
Air release volume
Air pump volume
Bell volume
Bell ring rate
Diesel rumble volume
Des cription
Short address
Start voltage
Acceleration
Manufacturer version number
Manufacturer ID
Dec eler ation
Top voltage
Basic configuration
Printed in USA
N Gauge Drop-in Diesel Sound Decoder
for Kato F Series Locomotives
Item #0001957
Thank you for purchasing our highly advanced DCC/DC 16 bit
locomotive sound decoder. Combined with any DCC System or
the MRC Tech 6, our new decoder with authentic diesel sounds
will bring your locomotives to life.
Synchronized diesel prime mover with random
associated locomotive sounds
Adjustable back EMF load control with ultra slow
speed control
1.0 amp capacity
Programmable for either 2-digit (1-127) or 4-digit
(1-9999) addresses
Programmable start voltage and top voltage
Programmable acceleration and deceleration
rate
Programmable 14, 28/ 128 speed steps
Directional lighting, (FO). Sunny White LED
included
Programmable user selectable different horns
and bells
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 regulations
Programmable individual sound volumes
13mm speaker included
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 15 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
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
$10.00 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 $50.00 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: rrtech@modelrectifier.com
Send the decoder to:
Model Rectifier Corporation
Attn: Parts & Service
80 Newfield Avenue
Edison, NJ 08837-3817 U.S.A
PROGRAMMING
This decoder supports all programming modes and supports read back of all CV’s
with most dcc systems.
Question and Answer IconNeed help?

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Summary

Programming Decoder Settings

Speed Table Configuration

Configure speed table CV67-CV94 for 28 speed steps to control motor voltage for locomotive speed.

Troubleshooting Decoder Issues

FCC Compliance Statement

Return Procedure and Warranty

Locomotive Installation Guide

DCC Operation Features

Function Key Mapping

Maps decoder functions (F0-F28) to locomotive actions like lights, horns, and sounds.

Prime Mover Selection

Select diesel prime mover type using CV123 for specific locomotive models.

Summary

Programming Decoder Settings

Speed Table Configuration

Configure speed table CV67-CV94 for 28 speed steps to control motor voltage for locomotive speed.

Troubleshooting Decoder Issues

FCC Compliance Statement

Return Procedure and Warranty

Locomotive Installation Guide

DCC Operation Features

Function Key Mapping

Maps decoder functions (F0-F28) to locomotive actions like lights, horns, and sounds.

Prime Mover Selection

Select diesel prime mover type using CV123 for specific locomotive models.

Overview

The MRC N Gauge Drop-in Diesel Sound Decoder (Item #0001957) is an advanced 16-bit DCC/DC locomotive sound decoder designed for Kato F Series Locomotives, though it may fit other N scale locomotives with slight modification. This decoder aims to enhance the realism of model railroads by providing authentic diesel sounds and a range of programmable features.

Function Description:

The core function of this decoder is to provide synchronized diesel prime mover sounds, accompanied by random associated locomotive sounds, to model locomotives. It offers a comprehensive set of programmable features that allow users to customize the locomotive's performance and sound characteristics.

Important Technical Specifications:

  • Decoder Type: 16-bit DCC/DC sound decoder.
  • Current Capacity: 1.0 amp.
  • Sound: Synchronized diesel prime mover with random associated locomotive sounds.
  • Speed Control: Adjustable Back EMF load control for ultra-slow speed operation.
  • Addresses: Programmable for either 2-digit (1-127) or 4-digit (1-9999) addresses.
  • Speed Steps: Programmable for 14, 28, or 128 speed steps.
  • Lighting: Directional lighting (F0) with a Sunny White LED included.
  • Sound Customization: Programmable user-selectable different horns (22 types) and bells (8 types plus off).
  • Accessory Functions: 28 accessory functions (F1-F28).
  • CV Read Back: Supports full read back of CVs.
  • Consisting: Supports advanced consisting (CV19).
  • Programming: Supports programming on the main (OPS mode).
  • Standards Compliance: Compatible with NMRA DCC standards and complies with Part 15 of FCC regulations.
  • Individual Sound Volumes: Programmable individual sound volumes.
  • Speaker: 13mm speaker included.

Usage Features:

The decoder is designed for a "drop-in" installation into Kato N scale F series diesel locomotives. Installation involves removing the original circuit board, carefully handling wheel pickup contact strips (which must be taped to prevent contact with motor leads), trimming the plastic cradle, and bending spring contacts on the decoder before installation. A strip of tape over the clip and down the chassis sides helps secure the decoder.

For DCC operation, the decoder comes factory programmed with address #3, 28/128 speed steps, and maximum top voltage. Users can select the "Run" mode on their DCC system and acquire address #3 to start operation.

Sound Control:

  • Prime Mover Sounds: The decoder offers 6 types of diesel prime mover sounds, selectable via F12 or by programming CV123 (values 0-5). A table in the manual lists suitable locomotive types for each prime mover sound.
  • Start-up/Shut-down: The engine can be started by pressing any numbered function button. To shut down, the loco must be brought to idle, and F8 must be pressed three times.
  • Horns & Bells: 22 different horns are available, selectable via F19 or CV50. 8 different bell sounds are available via F18 or CV52.
  • Volume Control: Most sounds have individual volume control CVs. CV49 serves as a master sound volume control. F13 reduces the master volume by 1 (with an air release sound when CV49=1), and F14 increases it by 1 (with an air release sound when CV49=16). Programming CV49 to 0 mutes all sound.
  • Notching: The decoder defaults to automatic notching. For realistic manual notching, program CV122 to 3, then use F9 to notch up and F8 to notch down.
  • Sound Prioritization: Bell, Dynamic Brake, and Rail Wheel Clack cannot play simultaneously. If F1 (Bell) is activated, it overrides the other two. Rail Wheel Clack does not play when the loco is idle. A one-second delay occurs when turning off Dynamic Brake and Rail Wheel Clack.

Performance Control:

  • Speed Table: When CV29's bit 4 is set to "1", the decoder uses a speed table (CV67-CV94) for 28 speed steps, allowing fine-tuning of motor voltage for each step. CV65 (kick start voltage) is applied only when changing from speed step 0 to 1.
  • Back EMF: Adjustable Back EMF closed-loop speed control is pre-tuned for most locomotives. Users are advised against changing CV113 (proportional gain) and CV114 (integral gain) without basic knowledge of PID feedback control, as incorrect settings can cause motor oscillation or slow response.
  • Start Voltage/Top Voltage/Acceleration/Deceleration: Programmable via CVs (CV2, CV5, CV3, CV4 respectively).

DC Operation:

In DC operation, only the last programmed prime mover sound will play, and control over bells, horns, etc., is not available. For full sound functionality on DC, the use of an MRC Tech 6 power pack (Item No. 0001200) is recommended.

Maintenance Features:

  • Troubleshooting: If the locomotive doesn't respond to commands, it may have lost its address. Users should re-program the address and set CV19 to 0 (disable consist). For slow response, clear momentum by setting CV3 and CV4 to zero. If step 1 speed is too high, set CV2 to zero. If top speed is too slow, set CV5 to 31. Cleaning the track is recommended for electrical pickup.
  • Factory Reset: Programming CV125 with a value of 1 restores the decoder to factory settings, including address #3. This is a crucial troubleshooting step.
  • Warranty: The decoder carries a 6-month warranty against factory defects. This warranty does not cover abuse, misuse, neglect, improper installation, or modifications (e.g., removal of the NMRA plug). For warranty repair/replacement, users must include a copy of the original sales receipt, a letter describing the problem, and a check or money order for $10.00 for return shipping and handling. If the decoder is out of warranty, a $50.00 fee covers repair/replacement and return shipping.
  • Support: Customer Service can be reached by phone at 732-225-6360 (8:30 am - 6:00 pm EST) or by emailing rrtech@modelrectifier.com.
  • Documentation: Users are encouraged to read their DCC system manual and refer to the NMRA DCC Standard & Recommended Practices, RP-9.2.2 (available at www.nmra.org) for detailed information on CVs and their functions.

MRC 0001957 Specifications

General IconGeneral
BrandMRC
Model0001957
CategoryMedia Converter
LanguageEnglish