MRC 0001922 Manual Download Page 1

CV

Description

Range

Default

CV1

Short address

1-127

3

CV2

Start voltage

0-63

10

CV3

Acceleration, 1=1 sec, max is 63 sec to reach top speed

0-63

0

CV4

Deceleration, 1=1 sec, max is 63 sec to stop at top speed 

0-63

0

CV5

Top voltage, 63=f ull speed, 0=half of  the top speed

0-63

63

CV6

Adaptive Back EMF control enable. 0=disable, 1=enable

0-1

0

CV29

Basic configuration

---

2

CV7

Manufacturer version number

---

0

CV8

Manufacturer ID

---

143

CV17

Long address upper byte

192-231

192

CV18

Long address low er byte

0-255

3

CV19

Advanced consist address

0-127

0

CV37

0=normal, 1=F3 and F4 exchange

0-1

0

CV39

0=normal, 1=F5 and F6 exchange

0-1

0

CV42

0=normal, 1=F8 and F12 exchange

0-1

0

CV49

Master sound volume, 16=max volume,  0=sound off

0-16

16

CV50

Horn type

0-3

0

CV51

Horn volume

0-15

12

CV52

Bell type 

0-3

0

CV53

Bell volume

0-15

12

CV54

Bell ring rate

0-50

3

CV55

Prime mover volume

0-15

12

CV56

Brake squeal volume

0-15

12

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

F3 control air release enable

0-1

1

CV64

Rail w heel clack

0-15

12

CV65

Kick start voltage

0-63

63

CV67-94

28 speed steps table w hile CV29.4=1

1-255

linear

CV112

Back EMF start speed adjudstment

0-7

0

CV113

Back EMF Load control proportional gain Kp

0-31

20

CV114

Back EMF Load control integral gain Ki

0-31

10

CV115

Brake soundl type; 2=brake sound of f

0-2

0

CV116

Brightness of dim light in Rule 17 or dim-bright-off  mode

0-255

120

CV117

Headlight light ef fect

0-15

0

CV118-119

Accessory light mode

0-15

0

CV120

Light brightness

0-255

255

CV121

Air compressor mode (1=change w ith engine rpm)

0-1

0

CV122

Diesel Notch mode, 0=auto, 3=manual

0-3

0

CV123

Diesel Primer Mover Select 

0-4

0

CV124

Back EMF Load control intensity (0=of f)

0-255

0

CV125

Programming to "1" w ill restore some CV's to f actor settings

---

0

0

CV21

When CV21=0,  functions f ollow  its ow n address. CV21=1, 

functions f ollow  the consist address

---

Printed in USA

HO 16 Bit 

 

Stereo 

DCC Drop in

Sound Decoder For EMD F & E Units,

And ALCO PA’s

Item #0001922

Thank you for purchasing our most advanced triple core stereo sound
decoder available. Combined with any DCC System or the MRC Tech
6, our true live capture digital 

diesel 

sound decoder will

 bring your

Proto 2000 locos to life.

• Adjustable back EMF load control

• 16 bit sound control with 16 levels of sound volume

• Dual out of synch EMD 567B prime movers for realistic E

Unit operation

• 1.5 amp capacity

• 2 different prime mover sounds- EMD 567B/Alco 244

• Programmable for either 2-digit (1-127) or 4-digit (1-9999)

addresses

• Programmable start voltage and top voltage

• Programmable acceleration and deceleration rates

• Programmable 14, 28/ 128 speed steps

• Programmable user selectable 22 types of horns and

8 types of bells

17 light effects: ditch lights, mars light, gyra light...

• 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

• True 

stereo sound comes with 

two 28mm speakers

PROGRAMMING CV CHART

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

Loco running without any sound press F12, no chuff sound, press F6.
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.
 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 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.

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 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 $11.00 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
$55.00 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

Reviews: