MRC SOUNDER 0001866 User manual

MRC SOUNDERTM
16 Bit Sound Decoder with 28
Accessory Functions
Item 0001866
Thank you for purchasing our highly advanced DCC 16 Bit 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 16 Bit sound technology will make your model locomotive
come to life.
•Easy installation - two wires only
• Three types of synchronized prime mover sounds,SD70/
ALCO/Electric locomotive, 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 different horns and bells
•Programmable individual sound volumes featuring 16 levels
volume adjustment
•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 16 Bit 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
If you experience any problems with the MRC Sounder, please contact MRC first by either phone,
732-225-6360, or by e-mail, [e-mail] . Please have the following information
ready: Make/model of your DCC system and decoder. Make/scale of locomotive, and the type of
problem you are experiencing. This way you can possibly avoid unnecessarily returning the MRC
Sounder.
Should it become necessary to return your MRC Sounder, un-solder the Sounder and return the
Sounder only. 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
$10.00 check to cover shipping and handling. Be certain to return only the MRC Sounder.
Warranty does not include abuse, neglect, or using this product for anything
other than it’s intended purpose. Warranty coverage will be handled on a
case by case basis, and other charges may apply for repair/replacement of
the product.
Send the decoder to:
Model Rectifier Corporation
Attn: Parts & Service
80 Newfield Avenue
Edison, NJ 08837-3817 U.S.A


2010 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, regardless
of scale that already has a working power decoder installed.
To install the Sounder into a locomotive, simply solder the resistor leads on 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. 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” 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 twenty-two horn sounds and six 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 horn
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- Bell, Dynamic Brake, and Rail-Wheel Clack, cannot play at the same time. If you activate
the bell sound, F1, while either the Dynamic Brake or Rail-Wheel Clack sounds are activated, the
Bell sound will override the other two sounds.
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 commands, 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 CV120 and CV121 to zero. 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.
Function Idle/Moving
F1 Bell on/off F2 Horn F3 Short air release F4 Coupler cut lever F5 Brake release (idle) / brake squeal (moving) F6 Dynamic brake on/off F7 Coupler release/Air hose firing F8 3 times w ill s hut dow n w hen in idle / Manual notch dow n F9 Engine cooling f an / Manual notch up
F10 Rail w heel clack (only moving) F11 Traction air compressor F12 Change prime mover (3-types/off) F13 Short air release F14 Coupler crash F15 Air compressor F16 Flange squeal F17 Air release F18 Change bell type (use F1 to turn of f bell after adjustment) F19 Horn type select F20 Associated loco sound F21 Change bell volume (use F1 to turn off bell after adjustment) F22 Change horn volume F23 Change prime mover volume F24 Safety valve pop F25 Air release F26 Flange noise F27 Sand release F28 Air release
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 --- 1
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 odd number sound on, even sound off 1on
CV50 --- Horn type 0-22 6
CV51 --- Horn volume 0-15 12
CV52 --- Bell type 0-6 3
CV53 --- Bell volume 0-15 12
CV54 --- Bell ring rate 0-50 3
CV55 --- Diesel rumble volume 0-15 12
CV56 --- Brake squeal volume 0-15 7
CV57 --- Dynamic brake volume 0-15 12
CV58 --- Air release volume 0-15 12
CV59 --- Air pump volume 0-15 12
CV60 --- Safety pop valve volume 0-15 12
CV61 --- Engine cooling fan volume 0-15 12
CV62 --- Coupling volume 0-15 12
CV63 --- Sand release volume 0-15 12
CV64 --- Rail wheel clack 0-15 12
CV112 Air compressor volume 0-15 12
CV113 --- Coupling fire volume 0-15 12
CV114 --- brake release volume 0-15 0
CV115 --- Auto brake squeal enable/disable 0-1 1(enable)
CV116 --- Flange volume 0-15 12
CV120 R3 Acceleration 0-32 0
CV121 R4 Deceleration 0-32 0
Diesel notch mode, 0=auto-notch
3=manual notch
CV123 --- Prime mover sound (3- types) 0-2 0
CV125 --- Factory default setting: Programming to 1 w ill restore all
CV's to default setting --- 0
CV122 --- 0-3 0
0CV21 ---
When CV21=0, all accessory functions w ill follow its
ow n address. When CV21=1, all functions w ill f ollow
the consist address
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