HO Gauge EMD Modern Large
Snap-in Diesel Sound Decoder with
17 Accessory Sound Functions
Item #0001634
Thank you for purchasing our highly advanced DCC locomo-
tive sound decoder. Combined with any DCC System, our
new decoder with authentic diesel sound truly will make your
model railroad come to life.
•Replaces most locomotive circuit boards
•Synchronized diesel prime mover with randomly
associated locomotive sounds
•17 accessory functions allowing more sound control
than ever
•Programmable individual sound volumes
•1.5 amp capacity
•Programmable for either 2-digit (1-127) or 4-digit
(1-9999) addresses
•Programmable start voltage
•Programmable acceleration rate
•Programmable deceleration rate
•Programmable top voltage
•Programmable 14, 28, 128 speed steps
•Selectable factory default speed curve
•Directional lighting (FO) at 0.2 amp rate
•Programmable “Rule 17” directional lighting
•Programmable for either ditch lights, mars light, or
strobe light
•Supports advanced consisting (CV19)
•Supports programming on the main (OPS mode)
•Compatible with NMRA DCC standards
•Complies with Part 15 of FCC
•28mm speaker included
•Dimensions: 75.0mm x 17.5mm x 7.5mm
LIGHT EFFECT PROGRAMMING CHART FOR CV#112
Your MRC Synchronized Diesel Sound Decoder is equipped with normal directional
lighting, plus MRC light effects. (see connect lights diagram) you can choose from
ditch lights, mars light or strobe light. Your diesel loco can also have “Rule 17”
directional headlights, through simple programming, without any complicated
wiring.
UPGRADE
This decoder can be upgraded to MRC top line decoder performance that has 8
different bell sounds and 15 different horns. if you wish to upgrade your decoder
please send in the decoder with $24.00 check.
TROUBLE SHOOTING
The MRC 0001634 HO diesel sound decoder should perform well with all DCC
systems. See your DCC system manual to learn how to program and operate the
decoder. For more information about register/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.
Due to the nature of all sound decoders, the CV read back is not 100% correct. So
this feature is not supported in the decoder. This is not a defect of the decoder or
your DCC system.
Whenever the decoder doesn’t work please use program track to re-program the
loco address or program CV# 125 with value 1 to restore the decoder to factory
setting. This should bring the decoder to life.
FCC COMPLIANCE
This device complies with the part 15 of FCC rule. 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
cause undesired operation.
RETURN PROCEDURE
If it should become necessary to return your decoder, unplug the decoder and
return the decoder only. Please include a letter (printed clearly) with your name,
address, a daytime telephone number, and a detailed description of the problem
you are experiencing. Please also include a $15.00 check for shipping and
handling. Be certain to return only the decoder.
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 methods including: register, paged CV,
direct CV, and programming on the main (ops mode programming).
2005 MODEL RECTIFIER CORPORATION
80 NEWFIELD AVENUE
EDISON, NJ 08837-3817
NOTE: Due to limitations in older DCC systems, some of the sound functions or
light effects functions may not accessable. ALSO, you might be limited to
factory default CV values.
Printed in USA
Light CV
Ef f e ct value
CV#112 Normal on/off Normal on/off Ditch light Ditch light 0
CV#112 Normal on/off Normal on/off Mars light Single strobe light 1
CV#112 Normal on/off Normal on/off Mars light Double strobe light 2
CV #112 Rule 1 7 Rule 1 7 Ditc h light Ditc h light 16
CV#112 Rule 17 Rule 17 Mars light Single strobe light 17
CV#112 Rule 17 Rule 17 Mars light Double strobe light 18
Acc2 lightAcc1 lightHead Light Head Light
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
--- 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 =on) 0-1 1
CV51 --- Horn volume 0-3 3
CV53 --- Bell volum e 0-3 3
CV54 --- Bell ring rate 0-50 3
CV55 --- Diesel rumble volum e 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 pum p volum e 0-3 3
CV60 --- Safety pop valve volume 0-3 3
CV61 --- Engine cooling fan volume 0-3 3
CV62 --- Coupling volum e 0-3 3
CV63 --- Random noise volume 0-3 3
CV64 --- Rail wheel clack 0-3 3
CV105 --- User identification number 0-255 0
CV106 --- User identification number 0-255 0
CV112 --- Light effects see chart 0
CV113 --- Ditch light rate 0--20 3
CV114 --- Light brightness (green, brown) 0-12 3
CV115 --- Auto brake squeal enable/disable 0-1 1(enable)
CV116 --- Coupling sound type 0-2, 2=off 1
CV117 --- Lights enable/disable 0-1 1(enable)
CV119 Coupling fire volume 0-3 3
CV120 Brake release volume 0-3 3
CV121 random noise enable 0-1 1(enable)
CV122
D ies el s ou nd typ e (0=off, 1 =rp m &
notch synchro to speed, 2=linear rpm
synchro to speed, 3=notch up/down
(F8=notch down, F9=notch up))
0-3 1
CV124
Speed curve select (0=linear, 1=slow
increase at slow speed, 2=fast
increase at slow speed
0-2 0
CV125 --- Factory default setting: Programming to 1
will restoreallCV'stodefaultsetting
---0
CV21--0
When CV21=0,allaccessoryfunctionswill
follow its ow n address. When CV 21=1, all
functionswill followtheconsistaddress
---
