HO Gauge Synchronized
Diesel Sound Decoder For G.E. U23B
(With NMRA 8 pin plug and 9 pin JST connector)
Item #0001805
Thank you for purchasing our highly advanced DCC locomotive
sound decoder. Combined with any DCC System, our new
decoder with “Carnegie Hall” sound quality will make your model
railroad come to life.
•
Recorded from real G.E. U23B locomotive, plus extra
optional prime mover sound
•
1.5 amp capacity
•
Programmable choice of 34 different horns and 8 bells
•
Programmable individual sound volumes
•
Programmable for either 2-digit (1-127) or 4-digit
(1-9999) addresses
•
Programmable start voltage, and top voltage
•
Programmable acceleration rate, and deceleration
•
Kick Start (CV 65)
•
User programmable custom speed table (CV 67-94)
•
Programmable 14, 28, 128 speed steps
•
Selectable factory default speed curve
•
Directional lighting (FO) at 0.2 amp rate
•
Programmable for either ditch lights, mars light, gyra
light and prime strobe light
•
28 accessory functions (F1-F28)
•
Supports advanced consisting (CV19)
•
Supports full read back of CV’s
•
Supports programming on the main (OPS mode)
•
Compatible with NMRA DCC standards
•
NMRA 8 pin plug and 9 pin JST connector
•
Complies with Part 15 of FCC
•
20mm speaker with baffle included (other size, aftermar-
ket speakers are available from MRC)
•
Dimensions: 40.0mm x 17.0mm x 6.5mm
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 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 $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
PROGRAMMING
This decoder supports all program mode and read back feature.
With MRC Prodigy
Advance DCC you can read its address and CV value.
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, horn is always 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
1
CV56
---
Brake squeal volume
0-3
2
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 with horn enable/disable
0-1
1
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
---
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
Diesel notch mode, 0=auto-notch
3=manual notch
CV123
Prime mover type( 2 types plus diesel off) 0=G.E.
0-2
0
CV124
Back emf load control on/off
0-1
0
CV125
---
Program it to1 will restore some the CV to
factory default settng
---
0
0
CV117
---
0
CV21
---
When CV21=0, all accessory functions will
follow its own address. When CV21=1, all
functions will follow the consist address
0-2
CV122
---
0-3
0