LGB MFX Mode
Button
Moving
Idle
Momentum
Headlight "F0" on/off
"F6" Loco Sound on/off
Hold Brake
Horn/Whistle "F1" on
Horn/Whistle "F1" on
Direction
Bell "F7" on/off
Change direction
Momentum & Brake
Do not press
LGB MFX Mode on/off
MRC DCC Mode
Button
Moving
Idle
Momentum
Headlight "F0" on/off
No change
Hold Brake
Horn "F2" on
Horn "F2" on
Direction
Bell "F1" on/off
Change direction
Brake & Direction
Do not press
MRC DCC Mode on/off
Note:
The unit will run the loco with the address #3, which is factory default. If
your loco address is not #3, have your dealer reset your locomotive address to
default setting #3.
THROTTLEPACK 9950 SERVICE
Your Throttlepack 9950 has been thoroughly tested before leaving our facility. If
for some reason you are having problems with your Throttlepack 9950, please
contact MRC Customer Support using the contact information
prior to
sending
the unit for service.
The unit carries a three-year limited warranty* If it should become necessary to
return the Throttlepack 9950 for warranty repair/replacement, be sure to contact
MRC technical support
beforehand
to ensure you receive the correct fees for
service. This also gives us the opportunity to troubleshoot issues which may be
solved with technical phone support.
The three-year limited warranty* does not include return shipping for customers
outside of the continental United States (including Hawaii, Alaska, Canada, and
Mexico). Customers outside of the continental United States must contact us for
return shipping rates.
Questions regarding the three-year limited warranty* policy or troubleshooting
issues can be directed to
MRC Customer Support
by calling
1-732-225-6360
from Monday to Friday between 8:00am and 5:00pm EST or by emailing
In order to receive warranty service, we require a copy of the original sales
receipt to validate the warranty period. Include a note briefly describing the
issues along with your name, address, phone number, and email address.
6
Throttle Control
The throttle control is used to set the speed of the locomotive. With the
momentum button in the OFF position (see Momentum Button for details), your
locomotive will immediately accelerate, or decelerate, to the speed dictated by
the throttle.
LCD Display
The LCD display will monitor your layout by displaying the voltage level from the
throttle to the track and current load, in amps, that you are using. It will also
display the direction of the locomotive, momentum in the on or off position, and
overload conditions (short circuit or maximum current draw).
Overload Indicator
In the event of a short circuit or overload, the circuit protector will trip. The LCD
will display “oVLd” meaning “overload.” When you see "oVLd" on your LCD,
immediately turn off your Throttlepack 9950 via the power switch on the left-hand
side of the unit. Then locate the short circuit in your layout and correct the
problem. Do not turn on your Throttlepack 9950 until the short circuit has been
resolved. See point 4 for further details.
Variable DC Terminals
These terminals are for the attachment of your Throttlepack 9950 to the mainline
of your layout. If the direction of your locomotive does not match the position of
your direction indicator, simply reverse the wires going to these terminals.
Accessories DC Terminals
These terminals supply DC voltage for use with accessories. Be careful to
observe polarity when hooking up accessories (of the two terminals for
accessories, the left is negative, and the right is positive). The output of the
accessories DC voltage will be determined by the position of the scale/gauge
switch, located on the bottom of the cabinet. HO/N mode for 15 VDC or O/G
mode for 18 VDC. See *Scale/Gauge Switch for details.
Handheld Plug (For DC Use Only)
Located in the front of the cabinet is a plug for the optional tethered handheld
with memory. The Handheld throttle offers speed control, brake, and direction
control. (MRC Part No. 0001325)
Your Throttlepack 9950 comes with a built-in universal power supply which
can be safely used in countries with 120 VAC/60 Hz or 220 VAC/50 Hz input.
In order to operate your Throttlepack 9950 outside the USA, you will need
to replace the wall cord with one suitable for the matching outlet. For your
safety, plug the wall cord firmly into the rear of the cabinet before plugging
into a wall outlet.
3
4. When your desired level of momentum is reached, stop tapping the
direction button. Press the momentum button to exit the adjust mode.
Your display will now resume to normal.
While in the “Adjust Momentum” mode, there will be no track voltage output.
Your Throttlepack 9950 will remember your last momentum setting each time
you turn on the unit, and you can change it to suit the operational
characteristics of all your locomotives.
OPERATION OF DCC SOUND EQUIPPED LOCOMOTIVES
The Throttlepack 9950 Power Pack can operate in three different settings.
• Standard DC Power Pack Operation
• LGB MFX Equipped
• DCC Equipped – MRC, Digitrax, Soundtraxx, TCS, or any other NMRA
compatible decoder
When you power up the Throttlepack 9950 it starts in the regular DC power
pack mode. Follow standard DC operating instructions if you are using DC only
locomotives.
To operate an LGB MFX equipped sound decoder, you need to switch the
Throttlepack 9950 Power Pack into the LGB MFX mode. Press the Brake and
Momentum buttons at the same time. The LCD will display “ACCY” to indicate
that the Throttlepack 9950 is now operating in the LGB MFX mode.
To operate in the DCC equipped mode, you need to switch the Throttlepack
9950 Power Pack into the DCC mode. Press the Brake and Direction buttons at
the same time. The LCD will display “LOCO” to indicate that the Throttlepack
9950 is now operating in the DCC mode.
In the DCC mode the Throttlepack 9950 will only run a locomotive set to the
default address of # 3. Use the throttle to control the speed of the locomotive.
The direction can ONLY be changed when the locomotive is at rest with the
throttle set to zero.
If the locomotive is not set to address # 3 you will need to obtain access to a
DCC system in order to program the locomotive address to # 3.
Press the momentum button while the engine is moving to toggle the
headlights on/off. This would be the same as using Function 0 on a DCC
controller.
Press and hold the Brake button to activate the horn/whistle sound. (Function 1
for LGB or Function 2 for DCC.) This will occur, if the engine is idle or moving.
Press the direction button while the engine is moving to toggle the Bell on/off
(Function 7 for LGB or Function 1 for DCC).
Press the direction button while the engine is idle, and the direction will change
to forward or reverse.
5
POWER PACK SETUP
Make sure that the green four-terminal right-angle plug is firmly inserted into
the rear receptacle of the cabinet. Take two wires from the Main Track layout
(18 AWG or heavier) and strip the ends 1/8 inch. Insert these wires into
terminals marked “TRACK”. Strip the ends of wires from any of your
accessories and insert them into terminals marked “ACC”. Using a small flat-
blade screwdriver, tighten the screws to secure the wires.
Note:
When connecting to any terminal, care must be taken that wires do not
touch more than one terminal at a time. Loose wires are a danger to your
Throttlepack 9950 and layout. Be certain wires are properly inserted into the
terminals before tightening screws. Also note that the output terminal screws
can get hot during periods of peak use. Tin your wires before inserting into the
terminals.
FOR YOUR PROTECTION
1. Never reverse a locomotive without stopping it first. Doing so may
cause damage to the locomotive mechanism.
2. Turn OFF the power switch at the end of the day’s operation and
remove the wall cord from the socket.
3. When a short circuit or current overload occurs the circuit protection
device will trip. Place the Thottlepack 9950’s on-off Power Switch into
the OFF position, place the throttle in the STOP position, and correct
the short or overload.
4. Avoid prolonged overloads and short circuits. Your Throttlepack 9950
is equipped with safety devices to prevent accidental damage due to
these conditions, but it is unwise to subject the Throttlepack 9950 to
these frequently or for extended periods of time.
5. Children under the age of 14 must be supervised by an adult when
operating this product.
6. For best performances, keep wheel and track surfaces clean. Dirty
track and wheels can cause erratic operation.
Adjustable Momentum
This Throttlepack 9950 features the use of adjustable momentum. There are 31
steps of momentum. This Throttlepack 9950 comes set to step 15 by default.
To increase or decrease the desired amount use the following steps:
1. While holding down the momentum button, turn ON the Power Switch.
2. The display will turn on and show the following; “Prog xx”. This
indicates that you are in the adjust mode with current setting xx,
default setting is 15. Release the momentum button.
3. Tapping the direction button will increase the amount of momentum.
Stop tapping the direction button when you reach your desired level.
After step 31 the momentum will revert to zero (no momentum) and
then ascend to 31.
4
