11
10
F7-B Diesel Locomotives with
Sound, Unpowered
THE PROTOTYPE
To increase the pulling power of its
popular F7-A locomotive, General
Motors' Electro Motive Division
(EMD) designed a matching diesel
locomotive without a cab. This "B-
unit" could be coupled to one or
more F7-A locomotives and con-
trolled by a single engineer in the
cab of the "A-unit."
THE MODEL
This unpowered replica of an F7-B
locomotive is designed for use with
LGB F7-A locomotives. The
detailed model features:
- weather-resistant construction
- factory-installed onboard
decoder for MTS and analog oper-
ation
- three-way power control switch
- digital electronic sound system
- cylinder clearing sound
- "notch" synchronized diesel
engine sounds
- horn sounds (starting, level
crossing)
- bell sounds
- "High Ball" announcement (with
Multi-Train System)
- cab alarm bell (with Multi-Train
System)
- braking sounds (application,
pressure release)
- magnetic bell and horn trigger
- remote control of sound fea-
tures (with Multi-Train System)
- two multi-purpose sockets with
circuit breaker
- length: 600 mm (23.6 in.)
- weight: 2100 g (4.6 lb.)
THE PROGRAM
With this model, we recommend
the following items:
- 50610 Steel Bridge, 1200 mm
- 50960 U.S. Semaphore Signal
- 65011 Sound Unit Power Storage
For information on the complete
LGB program, see the LGB catalog.
OPERATION
Preparation
This model is made for use with
LGB F7-A models. The electrical
connection between the "A-unit"
and the "B-unit" is made with two
cables (Fig. 1, 3):
1. Two-wire "track power" cable:
In all arrangements of multiple
units (for example, A-A, A-B, A-B-
A), connect all units with two-wire
track power cables.
2. Four-wire "electronics" cable
for sound and Multi-Train System
electronics:
Use the four-wire electronics cable
only to connect B-units to A-units.
Never use the four-wire electronics
cable to connect two B-units or two
A-units.
Attention!
Connecting two B-units
with the four-wire electronics cable
can damage the sound amplifiers in
the B-units.
Hints:
- One two-wire track power cable is
included with each A-unit.
- Two four-wire electronics cables
are included with each B-unit.
- For proper operation of the horn
and bell sounds, place the B-unit
on the track with the rear wall
(Fig. 1) facing the rear of the
train.
Operating Modes
This model is equipped with one
speaker and two amplifiers. To
control the amplifiers, this model
has a three-way sound control
switch on the rear wall (Fig. 2):
Position 0: Sound off.
Position 1: The speakers in the
front and rear A-units
are on. This position is
for an A-B-A combina-
tion. The speaker in the
B-unit is off.
Position 2: The speakers in the
front A-unit and the B-
unit are on. This posi-
tion is for an A-B com-
bination.
Multi-Train System
The model is equipped with a fac-
tory-installed onboard decoder for
the LGB Multi-Train System. It can
be used without modifications on
analog or digital layouts. For oper-
ation with the Multi-Train System,
the model is programmed to loco
address 03. For information on
programming the loco address, see
the instructions for various MTS
components.
When operating with the Multi-
Train System, you can remotely
control the loco’s functions. Press
the function buttons to control the
following functions:
1: Horn signal "level crossing",
2 short, 1 long, 1 short blasts
2: Brake application
3: Bell
4: Announcement: "Highball, John!"
5: Alarm bell
6: Diesel motor off/on
7: Brake pressure release
8: Sound off/on
With a Loco Remote or Universal
Remote, press the numbered loco
function buttons. With an MTS
Train Mouse, press the loco func-
tion button the matching number
of times. For example, to trigger
the bell, press button “3” on the
Loco Remote or Universal Remote.
If you are using a Train Mouse,
press the function button three
times to trigger the bell.
When operating with the Multi-
Train System, the loco features a
“Back-EMF” function. This keeps
the motor speed constant (and
under normal conditions the loco
speed), even when the load of the
loco changes, for example, in
curves or on grades. This feature
does not work at top speed,
because additional voltage must be
available to overcome any added
load.
If desired, numerous functions of
the onboard decoder, such as
acceleration, braking, direction of
travel and many others, can be pro-
grammed using a PC and the
55045 MTS PC Decoder Pro-
gramming Module (see
Instruct-
ions for advanced users
). These
functions also can be programmed
with the 55015 Universal Remote.
Sockets
The model has a "flat" multi-pur-
pose socket, with a removable
cover, on each end wall (Fig. 1).
These sockets can be used to pro-
vide track power to LGB cars with
lighting or sound electronics.
To remove the cover of the socket,
pull it straight out. If the cover is
tight, gently use a small straight
screwdriver to pry it out. (Do not
pull out the rectangular outer hous-
ing.)
Sound
This model features a digital elec-
tronic sound system. The volume
GB
USA
