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IN LOCOMOTIVE DELUXE N&W Y6A, Y6B, STEAM SOUND
for various track power by
Versi on 1.0
CAUTION-THIS DEVICE CAN BE DAMAGED BY STATIC DISCHARGE. PLEASE EXERCISE CARE DURING
INSTALLATION TO AVOID THIS POSSIBILITY. DISCHARGE YOURSELF TO AN ELECTRICAL GROUND (OUTLET
COVER SCREW) BEFORE REMOVING THIS DEVICE FROM ITS ANTI-STATIC BAG. PLEASE READ INSTRUCTION
SHEET COMPLETELY BEFORE ATTEMPTING TO INSTALL AND OPERATE THIS PRODUCT. Save the anti-static bag
for possible reuse of storing or shipping the sound unit!
OVERVIEW: This device is an electronic, self contained, polyphonic sound system for installation
in model steam locomotives that are designed to operate with conventional DC track power,
digital (DCC), other types of command control systems including radio with either track or batter y
power. The sound system is limited to "O" scale and larger gauge models and may also require
the use of a trailing car. An on/off switch (Item #524, not included) must be used to turn the sound
unit on and off in some applications. If there is sufficient input power, the three audio amplifiers
can each produce 1.1 watts of audio power which is in excess of what most small speakers can
handle. The speaker impedance must be 8 ohms or higher. Sound volume, treble, and bass is
adjustable for each audio channel. Refer to our catalog for available speakers.
Sounds produced include user controlled steam whistle and bell, random air pumps, periodic
safety valve pressure release, cylinder blow down and steam exhaust chuff sound automatically
adjusted to speed and load conditions. Exhaust chuff must be synchronized to actual piston
movement, drive wheel or axle rotation.
This sound system, when used with conventional DC track power, requires the use of our
LocoMatic™ Controller (Item 755) to operate the whistle, bell, cylinder blow down, main sounds
on/off and other lighting features. DCC and other command control operators can use remote
functions on their systems to activate these functions. Radio control with fixed track power or on
board batteries would be similar to DCC installations.
INSTALLATION INSTRUCTIONS: The sound system consists of three printed circuit boards, and
multiple mating connectors with wires. A CHOKE (item 702 or 703 depending on motor power
requirements), not included, is required for DC track power installations.
Refer to the drawing on page 3 to familiarize yourself with the connections required to the sound
boards. These are required for all installations. Then refer to the specific instruction sheets for the
type of installation you intend to make. Before proceeding with the installation read the balan ce of
the instructions carefully so you will be completely familiar with what is required and what sounds
you should hear. The sound boards also have appropriate silk screen labeling to further clarify the
functions of controls and connections.
The circuit boards should be mounted in appropriate locations. The main board is usually in the
locomotive tender along with the volume/treble/bass board so that the volume and other controls
are accessible either through the frame or via a hatch or a hole in the tender body shell. Be
certain that the components on the circuit board do not come in contact w ith any met al objects as
such contact can destroy the sound system. The tender speaker, which contains all sounds,
should be mounted as per available space bearing in mind that sound reproduction is enhanced
when a speaker is properly enclosed and baffled (the tender will serve as a proper baffle if near
or fully enclosed).
If a DC locomotive is not moving, there is no track power, therefore to have sound it is necessary
to have a separate power supply for the sound system. For in locomotive use, this separate
supply is a battery. We suggest the use of 6 AA batteries in series (7.2 volts for rechargeable's or
9 volts for standard batteries) to maximize volume potential and battery life. Rechargeable
batteries can also be used. When connecting the battery (DC) power leads be absolutely certain
that wires connect to the proper DC input leads. IF THESE CONNECTIONS ARE REVERSED
YOU WILL DAMAGE THE SOUND SYSTEM. This is not covered under any warranty and will be
obvious to us when returned for repair (tracks are burned through on the circuit board and parts
1
can be totally destroyed). Damage resulting from loose wire or other metal making contact with
the circuit board or its components is also not covered under warranty. These sound systems are
thoroughly tested and inspected before packing to insure proper function. There is a minimum
charge of $50.00 (plus s/i, PA residents require sales tax) for non-warranty repair so please be
careful when making these power connections.
SOUND INFORMATION:
AIR PUMPS are needed to maintain air pressure in the train and locomotive braking systems.
These pumps must run periodically as pressure drops, due to brake applications or through
normal leakage. To simulate this action, AIR PUMP sounds are generated at random intervals
when the sound system is on and there is no power to the track / motor. AIR PUMP sounds will
also be heard when power is first applied to the sound system. This will give you an indication
that the system is in fact functioning.
BLOWERS are used on a steam locomotive to maintain fire box draft when the locomotive is not
in motion. BLOWER sound will be generated whenever the locomotive has stopped moving and
there is no power to the track / motor.
SAFETY VALVE will vent if steam pressure in the locomotive boiler becomes excessive. The
sound system will produce a SAFETY VALVE release at random intervals whenever the blowers
are on and steam is not otherwise being used.
CYLINDER BLOW DOWN is required to remove condensate that accumulates in the cylinders
when a locomotive has been at rest. This condensate must be exhausted from the cylinders prior
to the pistons being powered by steam or there can be damage to the cylinders. CYLINDER
BLOW DOWN sounds will be generated by the sound system when requested. With the
LocoMatic™ Controller you depress and release the ALT & F3 button to turn on the CYLINDER
BLOW DOWN and then again depress and release the button to turn the CYLINDER BLOW
DOWN off. A remote function control does not require the PUSH ON - PUSH OFF sequence. The
CYLINDER BLOW DOWN will automatically turn off after the locomotive starts running and an
appropriate number of exhaust chuffs have occurred with the ball cocks in the open position or
the engine starts moving too fast. During this motion, the Cylinder Blow D own can always be
turned off. After the engine is brought to rest, several seconds must elapse before this function
can be turned back on. After all, condensation takes a while to occur, so you wouldn't open the
ball cocks to blow the cylinder's out right after stopping.
WHISTLE sound is controlled by the WHISTLE button on the LocoMatic™ Controller or by
remote function, dependent upon the type of installation. The WHISTLE will sound as long you
are holding the control on. This will allow you to actually play the sound as o n a real locomotive.
DCC and similar systems will have a sound delay equivalent to system response time.
BELL sound is controlled by the BELL button on the LocoMatic™ Controller or by remote
function, dependent upon the type of installation. When BELL sound is requested the sound
system will ring the BELL continuously. After a ring or two, the BELL can be turned off and will
stop at the end of a ring. With the LocoMatic™ Controller you d epress and release the BELL
button to turn on the BELL and then again depress and release the button to turn the BELL off.
Remote function control does not require the PUSH ON - PUSH OFF sequence.
EXHAUST CHUFF is the most notable sound of a steam locomotive in motion. The sound is the
result of the used steam from the cylinders being vented through the stack. Each cylinder will
exhaust twice during each drive wheel revolution and since most steam locomotives have two
cylinders, the exhaust should chuff four times for each drive wheel revolution. EXHAUST CHUFF
sounds should vary from a very slow chuff rate to an almost continuous roar at high speed.
EXHAUST CHUFF should also vary as to the load on the locomotive with a heavy train making a
louder exhaust. This sound system will vary the EXHAUST CHUFF sound either by an OPTICAL
INPUT (Item #583 included) or optional switch contacts, with actual movement of the drive
wheels or other axles. Additionally, the EXHAUST CHUFF is dynamic and it's volume will
increase above normal during acceleration and will be lower w hen decelerating. Since the Y6A,
Y6B had both simple and compound operation, this is also included in this sound system. When
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running at slow speeds, the sound system will be in simple mode. At faster speeds, the system
will change to compound. A function is provided (dccF2 - pin2) to manually control this as well as
the LocoMatic™ Controller's Coupler Rear buttons (Alt-Cplr) as a push on, push off (or leave
automatically turn off via faster speed operation). The engine must come to a slower speed
before re-enabling the simple mode of exhaust operation.
LIGHTING EFFECTS: Automatic headlight, backup, marker, cab lighting with motor polarity.
Override control is available to DC operators via the LocoMatic™ Controller (#755). After any
manual lighting operation is selected, automatic lighting may be accomplished via the Alt-Bell
buttons. Depressing this set returns the lighting back to automatic operation.
SPEAKER MOUNTING: The main speaker (connected to SPKR on the main board) should be
mounted so that the sound can actually "get out" of the locomotive. A hole in the floor of the
tender is acceptable but the front of the coal bunker or even through a simulated coal load may
be a better choice as the sound can exit forward or upward rather than down toward the track. In
some cases, particularly in the larger gauges, mounting a speaker inside the front of the boiler
with a open stack can enhance the sound. Enclosing the speaker in a chamber will also enhance
sound reproduction. A very simple enclosure can be made with a tube. It is usually best to seal
the end of the tube, so there are no air passages to the rear of the speaker, thus creating a sound
chamber. By carefully sealing all openings it may be possible to use the entire tender body shell
as a sound chamber thereby not requiring a tube type enclosure. A simple wall behind the
speaker may be all that is possible or perhaps all that is needed.
The other two speakers should be mounted in the main boiler if possible. Speaker 1 (connected
to SPKR1 on the Engine board), from the Engine board, contains the whistle and front exhaust
sounds. Speaker 2 (connected to SPKR2 on the Engine board) contains the Bell and rear
exhaust sounds (in compound engines). Other sounds are also produced from all of the
speakers. Since these are mounted in the boiler, round speakers are the best selection with
proper baffles. Do not mount the speakers without a proper baffle since that will produce an
inferior sound.
Speakers can be attached with double sided tape, with glue or with "hot melt". Enclosures can be
made with plastic, wood, card stock or even metal if so desired. Medicine bottles make excellent
sound chamber enclosures for round speaker types. Attachment with "hot melt" is advantageous
as the "hot melt" can be used as a gap filler when creating an enclosure.
Speaker enclosure is an art and experimentation is definitely in order for your installation so as to
gain the maximum benefit of the superb sound quality available in this sound system.
GENERAL OPERATING INFORMATION:
VOLUME ADJUSTMENTS: should be set as desired for your application. These volume controls
do not allow for the sound volume to go completely off, they merely give a range for the individual
volumes. Vol1 controls SPKR1, Vol2 - SPKR2, Vol3 - SPKR. Again, SPKR1 and SPKR2 are the
speakers connected to the Engine board. The main tender speaker is labeled SPKR on the main
board and is controlled by Vol3. Please remember that the amplifier can produce more power
than a small speaker can handle and that the sound will be louder if the speaker is properly
enclosed and baffled. If you are using batteries, the louder the volume the shorter the battery life.
TREBLE / BASS CONTROLS Each audio channel has it's independent Treble and Bass controls.
These are true Treble and Bass controls and not just tone type controls. If full boost is used, it
may be necessary to reduce the volume on that channel to prevent overdrive of the amplifier and
speaker. Again, the relationships are the same as the volume controls. Vol1 (Volume control 1) BASS1 (Bass control 1) - Trbl1 (Treble control 1) all control SPKR1. The others follow the same
nomenclature.
MISC: Another feature incorporated in this sound system is the ability to turn all sounds off,
leaving only the Whistle and Bell to operate. This can be done with the LocoMatic™ Controller by
using the ALT & F4 button and is a push on / push off function. Other operators can access this
with using function inputs.
Common Whistle signals
SOUND INDICATION
short ........................ apply brakes, stop
2-long ....................... release brakes, proceed
long, 3-short ............ flagman protect rear of train
4 or 5 long ................ recall flagman
2-short ..................... acknowledgment
3-short ...................... back up movement
4-short ..................... call for signals
short, long ................ inspect train line for leak or brakes sticking
2-long, short ............ approaching meet or wait poin t
2-long, short, long .... appr oaching grad e crossings
continuous long ....... approaching stations or junctions
successive shorts .... alarm for something on track
SPECIFIC INSTRUCTION SHEETS
PAGE
3 overall wiring
4 Conventional DC
5 DCC Receiver
6 Radio Receiver
7 Aristocraft Receiver
8 Synchronization Installation
9 Synchronization Patterns
10 blank
Common wiring practices
Wires with a "•" ARE a connection!
Wires crossing over (without a "•") are not a connection. Therefore DO NOT CONNECT them!
2
INSTALLA TIO N TYPE
246 W. Main St.
Leola, PA 17540
(717) 661-7041
www.dallee.com
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Common connections between boards & components for All installations.
Marker Lamps
#384 (1.5v)
Headlight
#756 (5v)
100 ohms
Engine Board
Lighting: Red wire is a regulated +5 volts which is common
to all lamps. All outputs are pulled to ground ("-") to turn the
lamps or LED's on. Outputs are capable of 120 milliamps.
Exceeding the current rating will damage the output driver.
Aux. Tender
#756
Backup light
#756 (5v)
Main Board
Firebox #384
(3 in series)
Cab
#756
Red
Black
White
White
Red
Black
Red
Gray
White
Black
Red
Red
Black
White
Speaker connections:
SPKR1 - Front driver
SPKR2 - Rear driver
Gray
Red
Each red & gray wire
pair connect to each
Gray
Red
Gray
Red
Gray
Red
speaker.
B
R
W
Speaker connections:
SPKR - main speaker
Red & gray wire pair connect to
tender speaker.
G
R
Gray
G
G
R
Red
R
G
R
speaker
speaker
Red
Black
White
G
R
G
R
All of the following connections are required for any type of installation.
For simplicity in drawing and viewing, the following connections, which are outlined in colored
boxes for easier identification, need to be connected from the Main board to the Engine board.
The red wire goes to the mating red wire and the gray wire to the mating gray wire between both
boards. Do not reverse the colors and do not plug them into the wrong locations.
PWR connections AUD connections SYNC connections
The yellow framed connections go to the optical pickup sensors. SYNC1 is the front
drivers optical sensor, SYNC2 is the rear drivers optical sensor. The connections are the same
for each optical sensor.
SYNC wire Optical Sensor
White ......................... White
Black ......................... Black & Green
Red ............................ Red
The optical sensor needs to be mounted so that the front focal distance is 1/8" to 1/4" maximum.
With the sound system "ON", the optics can be easily aligned since an exhaust chuff can be
heard from any white (reflection) to black (no reflection) transistion.
Definitions of connections to be shown on later pages:
CONN1:
1 - RED ............. Motor 1
2 - BLACK ......... Motor 2
3 - WHITE ......... track RF input (for DC operators only)
CONN2:
1 - RED ............. DCC rail 1 .......... also AC input 1
2 - GRAY ........... DCC rail 2 .......... also AC input 2
dccF1
1 - Whistle (red)
2 - Bell (gray)
R
G
R
G
dccF2
1 - Cylinder Blow Down (red)
2 - Simple / Compound (gray)
unlabeled, battery select jumper:
on - rechargeable batteries ......... off - standard batteries
batt:
R
G
1 - RED ............. DC power "+"
2 - GRAY ........... DC power "–"
SW1:
1 - RED ............. switch common
2 - GRAY ........... switch open
CONN3 - this connector mates to the Volume/Treble/Bass board (not shown) cable.
3
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Engine Board
White
Black
Red
DC track power installation using batteries & DALLEE controller #755
Connect all wires between boards as shown on page 3.
Place the Engine Board in an appropriate location in the engine. Also place the choke in the engine as shown. It is important to make all of the previous
connections from the right rail to move to the side after the choke. While the drawing shows the motor, previously installed lighting, and a smoke unit, your
engine may not contain all of them. You may also wish to change the factory installed lighting to that supplied from the sound cards. Failure to connect
other power drawing items to the other side of the choke will result in the LocoMatic™ Controller to not be able to operate the sound system properly.
White
The Aux Tender lamp is controlled via the
LocoMatic™ Controller's "Aux2" function
(Cntrl-Aux buttons together).
Red
Black
White
White
Main Board
Battery power: When using standard, non-rechargeable, battery power you must make sure
that the jumper is removed (located to the right of the "batt" label and shown in
above) must not exceed 24 volts DC. Use a string of 6 or more AA or AAA batteries (24
volt DC maximum input). Life depends on volume settings. Typical operation is in excess of
12 hours using good AA batteries.
Rechargeable battery power: use 6, 1.2volt 700ma, rechargeable batteries (item #648).
Place the jumper onto the selector located above and highlighted in
batteries to charge whenever the track voltage is higher than the battery voltage. The
batteries will also charge when the sound system "SW1" is in the off position. Full charge
will result when power is applied for 14 hours. Item #652 is a 6 pack AA battery holder.
Gray
ON / OFF switch
#566 SPST switch.
Switch shown in the OFF position.
as explained on page 3, connected on/off
switch to SW1 red and gray wires (see pg6 for
a better drawing of this connection).
batt: Make sure the
"+" and the GRAY wire goes to the
battery
"-". Failure to do so may create severe
battery
damage to the board as well as the batteries
and is not covered under warranty!
RED wire goes to the
RED
RED. This will allow the
Right Rail
pickup
DC
motor
lighting
circuits
Smoke
CHOKE *
Unit
Left Rail
pickup
*Larger motors require a larger capacity choke.
Chokes:
Item 702 - 1.5 ampere loads
Item 703 - 5.0 ampere loads
Lighted car / other engines used in consist preparation. You will know if this is
necessary by placing the locomotive / lighted cars on the track and then attempting to
blow the Whistle or operate the BELL. If they do not operate with the other items on
the track then you need to do the following. We suggest doing this to all lighted cars or
engines used in the same consist since it lets the signal stay at it's maximum level.
for additional chokes order:
Item 702 for up to 1.5 ampere load
Item 703 for up to 5.0 ampere load
Right Rail
pickup
either rail may
be used. Right /
Left only used
for reference.
CHOKE PACK
CHOKE
looks like coil of wire with a
lead on each end
Formerly right
rail pickup
LOAD
Lighting load, other locomotive in
consist, or other type circuitry
drawing off of track power. As
shown one lead needs to be
disconnected from the rail and a
"CHOKE" needs to be placed in
series with the load. In most cases
the 1.5 ampere (#702) will handle
the load.
Left Rail
Pickup
See pg 8 for optional lighting boards.
4
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Engine Board
White
Black
Red
DCC receiver installation
Connect all wires between boards as shown on page 3. Place the Engine Board in an appropriate location in the engine. Place the Main Board and
Volume/Treble/Bass board in the tender body at appropriate locations as well as the DCC decoder. Be careful, as always not to short anything to the boards or wires.
Regulated 5 volt lighting can be either connected to the sound boards or to a function output from the decoder. You can use the 5 volt lamps with their + lead
connected to the red +5 volt regulated output from the sound card and then connect the other end of the light bulb (or LED with appropriate limiting resistor) to the
appropriate function on the decoder. The headlight, marker lights, and cab lights will operate automatically with the sound system. Whenever motor power is
detected, the cab light will turn off and the appropriate headlight and marker lights will illuminate. So, you have your choice, either operate them with the decoder or
leave them connected to the sound system for automatic operation. The flickering fire box, if desired, can be either lamps in series or a 5 volt lamp painted red. Light
bulbs will function better than LED's in this application.
White
The white wire from CONN1 on the Engine
Board and Main Board do not get connected.
Either remove from connector housing, cut,
or tape end.
Main Board
F1 F2 F3 F4
Connect to appropriate
functions from the
decoder.
Red
Black
White
ON / OFF
Black
track power input
The batt jumper (outlined in RED)
should not be put in place.
do not connect batt red wire! Tape end, cut,
or remove from housing of connector.
+
#566 SPST switch.
Switch shown in the OFF position.
switch
DCC
M
Gray
DCC Receiver
receiver motor leads (Orange / Gray is standard
practice).
Make sure that your receiver is operating in the same
step mode as the transmitter !!
Track power input to decoder (Red / Black is standard
practice).
To F1, F2,
F3, and F4
as shown
Function outputs to appropriate Main Board inputs as
shown on lower left of drawing.
Some DCC systems may require the addition of another capacitor to stabilize the regulator
which will show in the lights flickering (if using the 5v lighting supplied). If this is experienced,
add a 470mfd to 1000mfd, 25 volt, capacitor as shown. The
lead, the
GRAY wire is the "-" lead.
RED side of the capacitor is the "+"
If you want the sound system on at all times, connect the on/off switch wires (SW1) together or
use a function with a relay to provide remote switch operation.
dccF1
1 - Whistle (red)
2 - Bell (gray)
dccF2
1 - Cylinder Blow Down (red)
2 - Simple / Compound (gray)
5
Page 6
Engine Board
White
Black
Red
Radio Receiver installation - utilizing battery power
Connect all wires between boards as shown on page 3. Place the Engine Board in an appropriate location in the engine. Place the Main Board and Volume/Treble/Bass
board in the tender body at appropriate locations as well as the receiver board. Be careful, as always not to short anything to the boards or wires.
Regulated 5 volt lighting can be either connected to the sound boards or to a function output from the receiver as long as the receiver provides for an open collector
type output. If so, you can use the 5 volt lamps with their + lead connected to the red +5 volt regulated output from the sound card and then connect the other end of the
light bulb (or LED with appropriate limiting resistor) to the appropriate function on the decoder. The headlight, marker lights, and cab lights will operate automatically
with the sound system. Whenever motor power is detected, the cab light will turn off and the appropriate headlight and marker lights will illuminate. So, you have your
choice, either operate them with the decoder or leave them connected to the sound system for automatic operation. The flickering fire box, if desired, can be either
lamps in series or a 5 volt lamp painted red. Light bulbs will function better than LED's in this application.
White
The white wire from CONN1 on the Engine
Board and Main Board do not get connected.
Either remove from connector housing, cut,
or tape end.
Main Board
F1 F2 F3 F4
Connect to appropriate
functions from the receiver.
Red
Black
White
ON / OFF
switch
Black
Battery Power
input
The batt jumper (outlined in RED)
should not be put in place.
#566 SPST switch.
Switch shown in the OFF position.
M
Radio Receiver
receiver motor leads
Battery power input to receiver
To F1, F2,
F3, and F4
connect function outputs to appropriate Main Board
inputs as shown on lower left of drawing.
as shown
Battery input power can be any battery voltage from 7.2 to 24 volts DC. This voltage must be
permitted by the battery operated receiver as well.
batt: Make sure the
RED wire goes to the battery "+" and the GRAY wire goes to the battery "-"
connections. Failure to do so may create severe damage to the board as well as the batteries
and is not covered under warranty!
If you are using a separate power switch from the battery or if you want the sound system on at
all times battery power is present, merely connect the on/off switch wires from SW1 together.
dccF1
1 - Whistle (red)
2 - Bell (gray)
dccF2
1 - Cylinder Blow Down (red)
2 - Simple / Compound (gray)
6
Page 7
Aristocraft/Crest #CRE-55492 receiver installation using fixed track power and Aristocraft relay board (ART-5490)
for sound function operation.
Connect all wires between boards as shown on page 3. Place the Engine Board in an appropriate location in the engine. Place the Main Board and
Volume/Treble/Bass board in the tender body at appropriate locations. Also place the Aristocraft radio receiver boards in their appropriate locations or where space
permits. Be careful, as always not to short anything to the boards or wires.
The headlight, marker lights, and cab lights will operate automatically with the sound system or you can choose to utilize the lighting from the Aristocraft receiver.
Whenever motor power is detected, the cab light will turn off and the appropriate headlight and marker lights will illuminate. So, you have your choice, either
Engine Board
White
Black
Red
operate them with the receiver or leave them connected to the sound system for automatic operation. The flickering fire box, if desired, can be either lamps in
series or a 5 volt lamp painted red. Light bulbs will function better than LED's in this application.
White
The white wire from CONN1 on the Engine
Board and Main Board do not get connected.
Either remove from connector housing, cut,
or tape end.
Main Board
F1 F2 F3 F4
different colors
utilized for easier
wiring/viewing.
Black
Red
Black
White
fixed track power
input - AC or DC
The batt jumper (outlined in
should not be put in place.
ON / OFF switch
#566 SPST switch.
Switch shown in the OFF position.
If you want the sound system on at all times,
connect the on/off switch wires (SW1) together.
Connections as shown:
Sound Function Relay/Keypad
F1 - Whistle ......................... A
F2 - Bell ................................ C
F3 - Cylinder Blow Down ...... D
F4 - Simple/Compound ........ E
you may elect to connect all, some, or none.
RED)
M
cable to
ART-5490
as shown
Track Power.
Input voltage of 12 to 24 volts DC or AC.
This voltage must be permitted by the
track operated receiver as well.
Connect to the track input from each truck.
If this is an Aristocraft receiver in a
non-equipped plug in, then connect to the
same wires as the receiver board (wire #1
& #7, blue & yellow)
Cable plugs into
receiver board
7
Aristocraft Radio Receiver
receiver motor leads
Track power input to receiver
connect function outputs to appropriate Main Board
inputs as shown on lower left of drawing.
Aristocraft Power Truck wire pickup help guide.
Terminal connection wire color receiver color
Left Rail pickup Black —› Yellow
Motor Brown —› White
Motor Blue —› Red
Right Rail pickup Black —› Blue
Left / right rail will reverse in the opposite pickup
truck. This drawing was made from their SD45.
Aristocraft relay board
(ART-5490)
Page 8
Synchronization of Exhaust Chuff
Switch Synchronization:
1 - connect Common (C) of the switch to the White wire from the SYNC input.
2 - connect Normally Open (NO) of the switch to the Black wire from the SYNC input.
Switch closure should occur on peaks of quartering lobes. We recommend using optics since they
can switch much faster, don't bounce, and do not interfere with the mechanical operation of the
axle.
Item #707, as shown, is a subminiature micro switch for this purpose, in lieu of using
optics (0.32"L X 0.1" W X 0.26" H).
Two switches are needed and have to be connected to "sync1" and "sync2" inputs.
You can also use other switch type contacts but DO NOT use a leaf switch to the chassis
(quartering lobe) this will damage the sound unit!
For extra 2 and 3 pin ultra-miniature connectors, see item's 757 and 758.
They are listed under Accessory Items / Connectors.
alternative lighting
1.25"w x 1"l x 0.35"h
Adjustable regulated output from 1.2 to 6 volts with 1/2 ampere of available output current. Input:
AC or DC to 30 volts! The regulator also consumes very little power, so it stays cool under load.
The VRS (item 378) is suitable for many applications: stationary lighting of building interiors,
outside lights, street lights, and marquees; Lighting passenger cars, cabooses; many other
applications. It is also LocoMatic™ compatible.
Consider installing our Adjustable Regulated Lighting board. The RL-ADJ (item 379) comes with
4 lamps but is capable of driving eight lamps, as shown. You can set the intensity desired (1.2 - 6
volts with 1/2 ampere of available output current). The RL-ADJ maintains constant voltage to the
lamps while requiring very little power to the regulator, something many other lighting systems
lack. It is also LocoMatic™ compatible. Simply install the lamps where desired, connect the input
power, and peel the tape to secure. The unit can be broken into smaller strip lengths where
needed. Install in cabooses, passenger cars, buildings or other locations. Measures only 1/2"
wide with a full 16" in total length. The power section of this lighting strip, when separated from
the rest of the strip would measure 1/2" x 2".
Extra, low voltage lamps, are available (item 383) as well as many other types of lamps. See our
catalog, web site, or price sheets for more selections.
For optical coupler (item #585) synchronization:
1 ...... connect Black and Green optical pickup wires together, this then connects to the Black wire
from the SYNC input.
2 ...... connect Red optical pickup wire to the Red wire from the SYNC input.
3 ...... connect White optical pickup wire to the White wire from the SYNC input.
While shown for only "sync1", the second optical coupler needs to be connected in the same
manner for "sync2".
Engine Board
It is not necessary to use the black / white stripe pattern, anything that will come in and out of
focus to the optical reader will work! So, engines with cams installed or a piece of plastruct
rectangular tubing cut and glued to the axle may also work with proper alignment. Remember,
some paints and other type markers will still reflect the infr-red light. So, just because it's black
doesn't guarantee that it will work. The optical coupler comes with laser printed stripes.
WHITE
GREEN
BLACK
RED
Focus Distance
1/8" - 3/16"
Optical pattern
mounted on
drive axle
Optical Coupler (hi-lighted for ease of viewing) glued to
frame 3/16" from optical end to pattern. In this
installation, the end mounting ears had to be trimmed
to obtain clearance to the drive gear box. When doing
so care must be used to not damage the optics.
Synchronized Chuff Patterns for AXLE READ, 4 chuffs per revolution. Mount optics inside
chassis and read driver axle. This is the ultimate location, when the drivers slip on the rails
the sound follows! Common axle diameters shown on page 9. Select appropriate one (or
make your own) and cut out. The long black strip shows total circumference of the axle
leaving 4 white stripes. The chuff starts on the black stripe and ends at the end of the white
stripe. For correct synchronization, place the center of the black stripe facing the optics
when a piston (main rod) is at the center of it's travel. If you prefer to paint the stripes, be
sure that the black paint is a flat finish. A gloss or semi-gloss will reflect as white / bare
metal. You can also read the high lobes of an existing cam.
8
apply a thin layer of glue on each
side to prevent oil from
contaminating the optical pattern.
Page 9
Synchronized Chuff Patterns for RIM READING for 4 chuffs per revolution.
Cut pattern that suits wheel diameter and cut large enough to cover inside flange. Mount pattern
on inside flange (clearing center axle from pattern). Trim excess beyond flange. Align optics to
read pattern. Any external light shining on the optical sense end will cause improper readings.
Synchronized Chuff Patterns for Reading an Axle
RIM READING for 2 chuffs per revolution
RIM READ
- shown mounted
inside truck.
20.6
6.5mm
20.6
6.5mm
7mm
7mm
22.14
22.14
9/32"
9/32"
22.44
22.44
23.6
7.5mm
23.6
7.5mm
5/16"
5/16"
25.0
25.0
8mm
8mm
25.1
25.1
Remember to shield the optic from stray light entering the pickup end. If light does stike the
sensor it can overcome the infra-red reflection creating the loss of exhaust chuff synchronization.
9
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