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F1 Loco

To control accessory functions F1 - F9, press 1 - 9. To control F10 - F15, press F10 - F15. When F1-F12 are on, F1 - F12 will be displayed on the LCD. F13 - F15 will not be displayed.


Speed F11

The left LCD display shows that the current loco is 3802 running in reverse at a speed of 102. Its accessory functions F1 and F11 are on.

Controlling Accessory Functions

Recalling Locos

To call up previous locos stored in the memory, press RECALL. You can recall up to 25 locos.


Although the Cab can store up to 25 locos during operation, if you unplug the Cab from the base unit, it will only retain up to the 5 locos last used. When you get the brand new cab you should select 5 loco addresses that you are going to use. Then unplug the cab. The cab will remember the last 5 loco address you selected and all the previous loco addresses will be gone. When you operate you just press RECALL to call up the loco address you want. If you have less than 5 loco you should delete unused addresses and unplug the cab. The cab will remember your loco addresses.

Deleting Locos

The Cab can store up to 25 locos. If you select a new loco when the Cab is full, the new loco will replace the current loco. The current loco will be lost. To prevent this, we recommend you recall unused locos and delete them by pressing and holding DEL for 2 seconds. Note: You can’t delete all loco address. The last address always stays in the stack.

Emergency Stopping

For emergency stopping of the current loco, press STOP. Pressing and holding STOP for 2 seconds will stop the Main Track output. The 2 lights on the base unit will blink. To restore the Main Track output, press and hold STOP for 2 seconds again.

Speed Steps

Speed steps are incremental steps the loco takes to go from 0 to top speed. There are three speed steps: 14, 28 and 128. The higher the speed steps setting, the higher the number of different speeds on which the loco can operate. When you enter a new loco address (an address that has not been stored in the Cab’s memory), Prodigy Advance will set 28 speed steps as the default setting for that address. In order to operate your loco properly, you may need to change the speed steps setting to match the decoder’s speed steps.

To select other speed steps settings, press SPD STEP repeatedly until you see your desired speed steps setting. Then press ENTER. The selected speed steps setting will apply only to that address.

2-2 Operation

MRC Prodigy Advance


Rate 1 means that one real second equals one fast clock minute, or 60 times as fast as real time. Rate 30 means 30 real seconds equal one fast clock minute, or twice as fast as real time. Rate 60 means 60 real seconds equal one fast clock minute, or real time.

1. Make sure your Cab is the Master Cab. 2. Press SYS and 2. The current rate will be displayed for a second. 3. Enter the new ratio. Press ENTER.


For a better understanding of “Scale Time and Distance” versus “Real Time and Distance” refer to the book – “How to Operate Your Model Railroad” by Bruce Chubb – Kalmbach Publishing.

Setting AM/PM or Military (24hr) Time (Master Cab only):

  • 1.

    Make sure your Cab is the Master Cab.

  • 2.

    Press SYS and 4. Either “AM”, “PM” or nothing (military) will display on

the LCD. 3. Repeat step 2 above to select the desired setting.

Reverse Loop

The following diagram shows a reverse loop with a double-pole double-throw (DPDT) switch. It allows you to change the polarity of the reverse loop section.

DPDT switch or AD520

Main Track

Insulated gaps

Reverse loop

Insulated gaps

Before a loco crosses the first insulated gap you must make sure the polarity of reverse loop section and Main Track are matched at the first gap. If not flip the switch. Otherwise it will cause a short circuit. After the loco passes the first gap completely, you need to change the polarity of the reverse loop section by flipping the switch so that the polarity of the reverse loop section and Main Track are matched at the second gap.

The MRC Auto Reverse Loop Module (#AD520) can be used in place of the DPDT switch for automatic operation of the loop. See your hobby dealer to purchase this item.

Accessory Decoders (Prodigy Advance Cab only)

The Prodigy Express will handle most NMRA compatible accessory decoders. This type of decoder can operate turnouts (switch tracks) or toggle accessories, like building lights, on and off from your Cab. The accessory decoder outputs can be programmed for a variety of options so you can use them for twin-coil switch machines (momentary on), slow- motion switch machines (constant on or latching), or signal lighting (various flash rates). Refer to your accessory decoder’s instruction manual for programming procedures and CV values.

Most accessory decoders have their own unique address (CV #513) and some have multiple outputs (groups of 4). Accessory decoder’s and loco decoder’s addresses are different, so they can be operated independently of each other (even if the address values are the same).


The MRC #AD360 Dispatch Decoder uses a short (1-127) mobile decoder address. You can treat the MRC #AD360 as a loco decoder and

MRC Prodigy Advance

Operation 2-11

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