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 at slow speed, 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/Off 1=off (horn always on)
0-1
0
CV50
---
Horn type
0-16
4
CV51
---
Horn volume
0-3
3
CV52
---
Bell type
0-6
3
CV53
---
Bell volume
0-7
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
---
Random noise volume
0-3
3
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
3
CV115
---
Auto brake squeal enable/disable
0-1
1(enable)
CV116
---
Coupling sound type
0-2, 0=off
1
Diesel notch mode, 0=auto-notch
3=manual notch
CV123
---
Prime mover type (AlCo
244/SD60/SD70/EMD 567B) 0= ALCo 244
0-3
0
CV125
---
Factory default setting, program it to1 will
restore all the CV to default settng
---
0
0
CV21
---
When CV21=0, all accessory functions w ill
follow its ow n address. When CV21=1, all
functions w ill follow the consist address
---
CV122
---
0-3
0
HO DC/DCC Synchronized Diesel Sound
Decoder with 28 Accessory Functions
for Athearn (RTR) RS-3 Locomotive
Item #0001820
Thank you for purchasing our most advanced DC/DCC
ALCo
244
sound decoder. Combined with any DCC System or MRC
Blackbox, our true live capture digital
ALCo
sound decoder will
bring your Athearn RTR RS-3 loco to life.
•
Synchronized diesel prime mover with random
associated locomotive sounds
•
1.5 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, (F0).
•
Programmable user selectable horns and bells
•
Supports full read back of all CV’s
•
Customizable speed curve
•
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 regulations
•
Programmable individual sound volumes
•
18mm speaker included
PROGRAMMING
This decoder supports all types of programming modes and read back features.
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 18 V. If the locomotive does not respond to commands, 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. The default prime mover sound for this decoder is the ALCo
244 which is correct for an RS-3. If for some reason one of the other prime mover
sounds are playing, re-setting CV # 125 to a value of 1 will re-set the prime mover
sound back to ALCo.
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 interference 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