MRC SOUNDER 0001665 User manual

MRC SOUNDERTM
Steam Sound Decoder with 28
Accessory Functions
Item 0001665
Thank you for purchasing our highly advanced DCC Steam sound only decoder.
Combined with any non-sound power decoder installed in your locomotive, and
used with your favorite DCC System, our new sound only decoder with
“Carnegie Hall” sound quality will make your model locomotive come to life.
•Easy installation - two wire only
• 24 types of synchronized chuff (12 single and 12 double) with
random associated locomotive sounds
•28 functions (F1 - F28)
•2 or 4-digit (1-9999) addressing
•Programmable 14, 28, 128 speed steps
•Programmable acceleration rate, deceleration rate
•Programmable user selectable 34 whistles and 8 bells
•Programmable individual sound volumes
•Supports advanced consisting (CV19)
•Supports programming on the main(OPS mode)
•Compatible with NMRA DCC standards
•Complies with the part 15 of FCC
•28mm speaker included
•Dimensions: 17.4mm x 17.4mm x 4.0mm
*Note- Instead of using CV3 and CV4, the decoder uses CV120 and CV121 as acceleration and
deceleration rates. So you can change its acceleration and deceleration rates without changing
CV3 or CV4 in your power decoder, if you already have these rates tailored for your locomotives
optimum performance.
ADDRESS PROGRAMMING
The “MRC Sounder” comes with a factory default address of #3, and 28 speed steps. If your
locomotive has a different address, and speed step already programmed into it, place the
locomotive, with decoder and MRC Sounder installed, on your program track and re-program it
to the address you had originally programmed it to. While it is on the program track, also re-
program the locomotive to the speed step of your choice, (14-28/128). Since the decoder does
not have a motor driver, you can’t read back its CV.
ADDITIONAL INFORMATION
The MRC Sounder synchronized diesel sound only decoder should perform well when used with
other brand command systems, and decoders. See your DCC command stations manual to learn
how to program and operate any decoder. For more information about register/CVs and their
functions, please refer to the NMRA DCC Standard & Recommended practices, RP-9.2.2 available
directly from the NMRA or their website at www.nmra.org.
FCC COMPLIANCE
This device complies with part 15 of 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 $12.00 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: [e-mail]
Send the decoder to:
Model Rectifier Corporation
Attn: Parts & Service
80 Newfield Avenue
Edison, NJ 08837-3817 U.S.A


2007 MODEL RECTIFIER CORPORATION
80 NEWFIELDAVENUE
EDISON, NJ 08837-3817
Printed in USA

INSTALLATION
Since there is no motor output in this sound decoder, it can be used in any locomotive, regard-
less of scale that already has a working power decoder installed. If used in large scales where
track voltage exceeds 16 volts, (O/G scales), a special voltage reducer is required to be used
in-line to the Sounder. Contact Model Rectifier Corp. for details and price.
To install the Sounder into a locomotive, simply solder the red and black wires to any power pick
up points, left and right side wheel pick ups, along with the red and black wires of your power
decoder. If using with higher voltage DCC applications for larger scales, solder the MRC voltage
reducer to either the red or black wire between the Sounder, and the power pick up point. You
should have some basic electrical knowledge and soldering skills. If you do not have the above
requirements, please ask the dealer for help with the installation.
SPEAKER SELECTION
The “MRC Sounder” steam sound only decoder comes with a 28mm round 8-ohm speaker. If it is
too large for your application, smaller speakers, 20mm, or 16 X 35mm rectangular, can be
purchased from MRC, or other manufacturers. Reducing speaker size will affect the overall
sound quality of this decoder. Placement of the speaker inside the locomotive is up to you. Use
hot glue or double-sided sticky tape to affix the speaker inside the locomotive shell.
OPERATION
There are 34 whistles sounds and 8 bell sounds, along with an “off” setting for each built into
this decoder for you to choose from. See programming chart for selecting the type you want.
The “off” setting is useful for trailing locomotives in a consist so only the lead unit sounds its
whistle and bell.
If your DCC system supports higher functions, F13 to F28, you can use these functions to
change the type of bell sound, F18, or horn sound, F19 on the move, without having to go into
“ops mode” programming or by changing CV values.
*Note- If you activate the bell sound, F1, while either the Rail-Wheel Clack sounds are activated, the Bell sound will override the other two sounds.
Function Idle/Moving
F0 Headlight on/off
F1 Bell on/off F2 Whistle F3 Air release F4 Coupling F5 Brake release (idle) / brake squeal (moving) F6 Conductor w hile idle/Rail w heel clack w hile moving F7 Fire box open /close F8 Injector F9 Metal crank sound on/off (moving), steam associated sound (idle)
F10 Water injector F11 Blow e r his s F12 Sound on/off F13 Coal auger F14 Air hose firing/uncoupling lever F15 Flange noise F16 Sh ov eling F17 Cras h s ound F18 Change bell type (use F1 to turn off bell after adjustment) F19 Whistle type select (total 34 dif ferent ones) F20 Bell rate change (use F1 to turn off bell after adjustment) F21 Change bell volume (use F1 to turn off bell after adjustment) F22 Change w histle volume F23 Change chuff volume F24 Chuff type select (total 24 types) F25 air release F26 sand dropping F27 Associated loco sound F28 Associated loco sound
CV Register Description Range Default
CV1 R1 Short address 1-127 3
--- 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 CV50 --- Whistle type 0-33 4 CV51 --- Whistle volume 0-3 3 CV52 --- Bell type 0-6 3 CV53 --- Bell volume 0-7 3 CV54 --- Bell ring rate 0-50 3 CV55 ---Chufftype 0-11 3
CV56 --- Chuff volume 0-3 3 CV57 --- Brake squeal volume 0-3 3 CV58 --- Air release volume 0-3 3 CV59 --- Blower hiss volume 0-3 3 CV60 --- Fire box door volume 0-3 3 CV61 --- Injector volume 0-3 3 CV62 --- Coupling volume 0-3 3 CV63 --- Air pump volume 0-3 3 CV64 --- Rail clack volume 0-3 3
CV105 --- User identification number 0-255 0 CV106 --- User identification number 0-255 0 CV112 Conductor volume 0-3 3 CV113 Random sound enable 0-1 1(enable) CV114 --- Brake release volume 0-3 2 CV117 ---Chuffrate 0-10 1
CV119 Coupling fire volume 0-3 3 CV120 Acceleration 0-32 0 CV121 Deceleration 0-32 0 CV122 Double chuff enable 0-1 0(disable) CV123 Chuff start rate adjustment 0-4 1 CV125 --- Factory default setting, program it to1 w ill
restore all the CV to default settng --- 0
0CV21 ---
When CV21=0, all accessory functions w ill
follow its ow n address. When CV21=1, all
f unctions w ill f ollow the consis t address
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