MRC 0001663 User manual

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
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
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
CV125 --- Factory default setting, program it to1 w ill
restore all the CV to default settng --- 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 follow the consist address
---
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.
ADDITIONAL INFORMATION
The MRC 1663 HO gauge synchronized diesel sound decoder should perform
well when used with other brand command systems. See your DCC command
stations 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.
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
If it should become necessary to return your decoder, remove the decoder
from the locomotive and return the decoder 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
$20.00 check to cover shipping and handling. Be certain to return only the
decoder.
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


2008 MODEL RECTIFIER CORPORATION
80 NEWFIELDAVENUE
EDISON, NJ 08837-3817 Printed in USA
HO DC/DCC Synchronized Diesel
Sound Decoder with 28 Accessory
Functions for Atlas S2/S4 Locomotive
Item #0001663
Thank you for purchasing our most advanced DC/DCC ALCo
sound decoder. Combined with any DCC System or MRC
Blackbox, our true live capture digital ALCo sound decoder will
bring your Atlas S2/S4 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, (FO). Sunny White
LED’s included
•Programmable user selectable horns and
bells
•Read back address and CV value
•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 program mode and read back feature. With MRC
Prodigy Advance DCC you can read its address and CV value.

Function Idle/Moving
F0 Headlight on/off
F1 Bell on/of f
F2 Horn
F3 Air release
F4 Coupling
F5 Brake release (idle) / brake squeal (moving)
F6* Dynamic brake on/of f
F7 Air hose firing/uncoupling lever
F8 Click 3 times w ill shut dow n / notch dow n w hile CV122=3
F9 Engine cooling fan / notch up w hile CV122=3
F10 Rail w heel clack (only moving)
F11 Traction air compressor
F12 Sound on / of f
F13 short air release
F14 flange noise
F15 Air pump
F16 Associated loco sound
F17 flange noise
F18 Change bell type (use F1 to turn off bell after adjustment)
F19 Horn type select (total 34 different horns)
F20 Associated loco sound
F21 Change bell volume (use F1 to turn off bell after adjustment)
F22 Change horn volume
F23 Change diesel rumble volume
F24 Coupling
F25 air release
F26 flange noise
F27 A ir hose f ir ing
F28 air release
Note- Bell, Dynamic Brake, and Rail-Wheel Clack, cannot play at the
same time.
*Note: We know that real S2/S4 locos do not have dynamic brakes,
but since most model railroads have steeper than normal grades, we
added this feature as an additional option.
left side pick up
right side pick up
left side pick up
right side pick up
DCC base unit
Power supply
Test track
27 ohm resistor
Figure 4. Diagram of test track
mill
mill
millmill
tape tape
tape
tape
INSTALLATION
Refer to the instructions that came with your Atlas S2/S4 locomotive for
removal of the handrails, cab and body shell. Unsolder the four pick up
wires and unscew two screws. Don’t lose these two screws. Remove the
original circuit board and the weight. You have to modify the weight for
fitting in the decoder. (Do not do any modifications to the weight while it
is still attached to the chassis or damage to the decoder or motor can
result) Use a grinding wheel, belt sander, or a fine file, to modify the top
weight as shown in the photos. Make sure the weight is clean of any
debris before re-installing it in the chassis. Apply tape on the weight
except the two screw area to prevent any short circuit. The trimmed ends
of the pickup wire must be only 1/16” long. Too long will cause a short
circuit and damage the decoder. Solder the four pick up wires to the
decoder in the four spots, noted on the board as “pick”, [see photos].
Make sure that there are no wire strands or solder bridges that will touch
any of the decoder boards components or the weight after you install the
decoder. Note: Some early versions of the loco may only have 1screw.
Now, insure the single contact on the bottom of the decoder is bent at
approx 30 degrees to insure contact with top motor brush. Line up the
screw holes in the decoder, with the the modified top weight, and use the
screws to secure the decoder and the weight. The narrow portion of the
decoder should fit snugly in the channel of the top weight.
The rear LED is set up at the factory to line up with the headlight lens in
the cab, if due to shipping the LED does not quite line up with the lens,
gently bend it back into position.
Re-install the body shell, cab, and handrails, and now your S2/S4 is ready
to go to work on your railroad.
Make a Test Track
Before you start with your decoder installation, we strongly recommend
building a test track that uses a 20-ohm resistor to limit current. Only test
your installed decoder on the test track. The test track will prevent any
damage due to an incorrectly installed decoder.
TEST
All MRC decoders have been factory programmed with address #3, 28/
128 speed steps and maximum top voltage. After you have finished your
decoder installation you are ready to test it. Never run the installed
decoder on your layout without first passing the test. You may damage
the decoder if it is not wired correctly or if you have not properly isolated
the motor and lights.
Put the loco on the test track. Select the “Run” mode of your DCC system
and select or acquire address #3. Advance the throttle and the loco
should move forward. Push the light button, [F0], and the front headlight
should come on. Change the direction of the loco, the loco should
change direction and the rear headlight, [if equipped], should come on.
The locomotive cannot get to full speed, due to the resistor. If the loco
moved forwards and backwards, and the light{s} came on, you did a
great job. Congratulations!
Do not run the loco for an extended period of time on the test track or the
resistor will overheat.
*NOTE- If your installed decoder does not pass the test, find the problem,
correct it and test it again. As long as you test the decoder on the test
track there is little chance of damaging the decoder. Also do not confuse
a test track with a program track. A program track does not use the
current limiting resistor. Sound decoders need full power to the program
track to install all programming instructions.
DCC OPERATION
This decoder has diesel start up and shut down features. Press any
function key to start up the engine before operating the loco. To shut
down the engine you must bring the loco to idle and then press F8 three
times. If the loco is previously shut down you have to start up the engine.
You can use F19 to select 34 different horns and use F18 to select 1 of 8
bells. If you don’t have MRC Prodigy Advance DCC you will have to use
CV programming to select these features.
The decoder is defaulted to automatic notch. You can program CV122 to
3 to set manual notch for more realistic operation. Then use F9 to notch
up and use F8 to notch down. In real life the notch level has noting to do
with travel speed.
There are many more programming features available with this decoder.
Please refer to the CV Chart to explore other features of the decoder.
DC OPERATION
This decoder provides synchronized, true ALCo diesel rumble
sounds with DC operation. Bells, horns, etc., cannot be accessed.
Use of the MRC BlackBox will enable the full range of sounds on a
DC system.