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LDT DigitalBooster DB-4 Assembly Instruction Manual

Digital professional series short-circuit-proofed power amplifier (booster) for digital model railway layouts
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Light emitting diodes have to be assembled that the long wire of the diode
corresponds to the mark "+" of the pc-board. Before assembly please slip the distance
spacer onto the connection wires.
The resistor-network RN1 is marked at one end for the assembly position with
"...103..." and additionally with a printed circle or a square. Assemble this component
that way that the marking corresponds with the marking at the first bore of the pc-
board. Additionally is the first bore marked with "1".
Integrated circuits (IC`s) are either marked with a half round notch on one end or a
printed point for the correct mounting position. Push the IC`s into the correct socket
assuring that the notch or the printed point is corresponding to the half-rounded
marking on the pc-board. The 4-poles integrated circuit LTV814 (IC6) shall be
soldered directly onto the pc-board.
Please attend to the sensitivity of the ICs to electrostatic discharge, which will cause
immediate damage of the IC. Before touching those components please discharge
yourself by contacting an earthed metal (e.g. earthed radiator) or work with an
electrostatic safety pad.
Assembly of the DB4-Power PC-Board:
After completing the DB-4 basic pc-board you can assemble the SMD-pre-assembled
and tested DB4-Power PC-Board.
Firstly please tighten the two distance spacer to the basic pc-board with two of the four
cross section screws.
Apply now the DB4-Power PC-Board into the socket bar BU4 of the basic pc-board.
Pay attention that there is no offset of the DB4-Power PC-Board to the socket. The
DB4-Power PC-Board is in correct position at the socket bar BU4 of the basic pc
board if you can screw the DB-Power PC Board to the distance bolts.
The following picture 1 show the assembly procedure from the side view and the
picture 2 show the assembled DB4-Power-PC Board onto the basic PC-Board with
sight from the top.
Picture 1
Schraube
screw
2 4 6 8 10 12 14 16 18 20
IC4
IC5
C1
DB4-Power
D7
1 3 5 7
9 11 13 15 17 19
C7
C8
C3
C10
D5
T1
T2
D6
R6
C11
R5
R1
R2
D3
D4
D2
R4
Distanzbolzen
IC1
R3
distance spacer
DB4-Power
C4
Rev. 1.4
T3
T4
Littfinski DatenTechnik (LDT)
DB-4-Basis
KL2
KL4
KL3
DB-4
Rev. 1.4
ST1
ST2
A
C
D
E
IN
OUT
STOP/GO
Feedback
Schraube
screw
Picture 2
L
D
ittfinski
aten
Assembly Instruction
The DigitalBooster DB-4 is a short-circuit-proofed power
amplifier (booster) for digital model railway layouts.
It provides a maximum digital current of 2,5 or 4,5 Ampere.
The DB-4 amplifies the digital formats of Märklin-Motorola,
The DB-4 can operate on several digital command stations
by using the 5-poles booster bus, the CDE-booster bus or
the Roco-booster bus.
The DigitalBooster DB-4 receives the power supply not from
a classical model railway transformer but from the switched
mode mains power supply DB-4 PowerSupply. On this unit is
the stabilized digital track voltage adjustable between 15 and
24 Volt, suitable for all track gauges.
This product is not a toy! Not suitable for children under 14 years. Improper use will imply danger or injuries due
to sharp edges and tips! Please store this instruction carefully.
C2
IC3
C9
Multi-Digital
C6
IC2
D1
C5
T
LDT
echnik (
)
DigitalBooster DB-4
from the Digital-Professional-Series !
DB-4-B
080071
Part-No.:
>> kit <<
®
mfx
, M4 and DCC.
CE Part-No.:
1370364
Internet: http://www.ldt-infocenter.com
Subject to technical changes and errors. © 07/2015 by LDT
Märklin, Motorola and mfx are registered trademarks.
Made in Europe by
Littfinski DatenTechnik (LDT)
Kleiner Ring 9
D-25492 Heist/Germany
Phone: 0049 4122 / 977 381
Fax: 0049 4122 / 977 382

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Summary of Contents for LDT DigitalBooster DB-4

  • Page 1 Firstly please tighten the two distance spacer to the basic pc-board with two of the four the Roco-booster bus. cross section screws. The DigitalBooster DB-4 receives the power supply not from Apply now the DB4-Power PC-Board into the socket bar BU4 of the basic pc-board. a classical model railway transformer but from the switched Pay attention that there is no offset of the DB4-Power PC-Board to the socket.
  • Page 2 You have purchased a kit for your model railway supplied within the assortment of Z-Diode BZX ... 30V attend to polarity! Littfinski DatenTechnik (LDT). These kits are of high quality and easy to assemble. IC-socket 28poles attend to polarity marking!
  • Page 3 Kleiner Ring 9 • D-25492 Heist/Germany • Phone: 0049 4122 / 977 381 • Fax: 0049 4122 / 977 382 Manual DigitalBooster DB-4 The DigitalBooster DB-4 is a short-circuit protected Power-Amplifier (Booster) for digital Model Railway Layouts from the Digital-Professional-Series! The DB-4 amplifies the digital formats of Märklin-...

  • Page 4: Table Of Contents

    DigitalBooster DB-4 – Manual Content: Page Preface / Safety Instruction DB-4 connection to the digital command station or to other boosters 2.1. DB-4 connection via the 5-poles Boosterbus 2.2. DB-4 connection via the CDE-Boosterbus 2.3. DB-4 connection via the Roco-Boosterbus...

  • Page 5: Preface / Safety Instruction

    DigitalBooster DB-4 – Manual 1. Preface / Safety Instruction: You have purchased the DigitalBooster DB-4 within the assortment of Littfinski DatenTechnik (LDT) for your model railway layout. We are wishing you having a good time using this product! The finished module in a case comes with 24 month warranty.

  • Page 6: Connection To The Digital Command Station Or To Other

    Viessmann Commander 2.1. DB-4 connection via the 5-poles Boosterbus: The DigitalBooster DB-4 can be connected by use of the 5-poles boosterbus cable (order code: Kabel Booster 1m, Part-No.: 000123), to one of the command stations as per above table or to other boosters (e.g. DB-4, DB-2, 6015, 6017, Power 2, Power 3).
  • Page 7 STOP/GO Feedback Feedback weiss weiss white white Von Digitalzentrale Zu weiteren Boostern From command station To further boosters Bestellbezeichnung / Order code: Kabel Booster 1m DigitalBooster DB-4 connection to the command station and between each other via the 5-poles boosterbus.

  • Page 8: Connection Via The Cde-Boosterbus

    Zu weiteren Boostern From command station To further boosters Connecting the DigitalBooster DB-4 with the Command Station via CDE-Boosterbus and between each other 2.3. DB-4 connection via the Roco-Boosterbus: With the Roco Boosterbus-Cable (Order Code: Kabel Roco 1m, Part-No.: 000136),...

  • Page 9: Connection To The Switched Mode Mains Power Supply Db-4 Powersupply

    3. DB-4 connection to the Switched Mode Mains Power Supply DB-4- PowerSupply: The DigitalBooster DB-4 shall not get the power supply over the socket BU1 from a classical model railway transformer but from the Switched Mode Mains Power Supply DB-4-PowerSupply.

  • Page 10: 3-Conductor Track System

    DigitalBooster DB-4 – Manual The digital current of the DigitalBooster DB-4 is available at the clamp KL1 next to the two light emitting diodes. The DB-4 supplies digital current to the own track section via this clamp. This section has to be electrical separated from the adjoining track sections because those receive their supply from the digital command station with integrated booster or from further booster.
  • Page 11 DigitalBooster DB-4 – Manual Alternative is it possible to use our Booster Keep Separate Module BTM-SG for the cross over joints. This module separates electrically definite the booster sections without rocker switch and provides the possibility to drive at slow speed at the cross over sections.

  • Page 12: 2-Conductor Track System

    DigitalBooster DB-4 – Manual 4.2. 2-Conductor Track System: If the manufacturer of your digital command station permits a common layout ground (“brown” or “J”) one rail of the 2-conductor track has to be isolated at the cross over joints from one to the next booster electrical circuit.

  • Page 13: Booster In Operation

    DigitalBooster DB-4 – Manual 5. Booster in Operation: All jumpers of the DB-4 are set ex-factory. The DigitalBooster DB-4 can be used immediately at the supplied condition. The factory setting is recommended for the first implementation of the unit. For selecting different operation modes after the first implementation please attend to the chapter “Adjusting Operation Modes with Jumpers”.

  • Page 14: Railcom ®* -Cutout Creation Or Suppression

    6.4. Short Circuit Report to the Command Station (Short Report): If the Jumper J1 "Short Report" has been set the DigitalBooster DB-4 will report a short circuit within the connected track section via the used booster bus to the digital command station.

  • Page 15: Automatic Switch-On (Auto Go)

    6.5. Automatic Switch-On (Auto Go): With the jumper J2 “Auto Go” is it possible to adjust the DigitalBooster DB-4 that the unit perform a continuous check every 5 seconds if a short-circuit is still present.

  • Page 16: Common Address Section

    / green / + 7.1. Common Address Section: If there will be a common four-fold address block programmed for the WatchDog- and the On-/Off switch function the DigitalBooster DB-4 will occupy 4 accessory- or turnout addresses. WatchDog On-/Off sw. Funktion...
  • Page 17 WatchDog 7.3. Address Section Programming: 1. Switch-on your digital layout incl. DigitalBooster DB-4 (the green LED of the DB-4 will glow). Depress 1x short the key S1 next to the jumpers of the DB-4. Now the green LED flashes. This indicates that the DB-4 is in the programming mode for the address-section of the On-/Off switch-function.

  • Page 18: Watchdog: Communication With The Model Railway Software

    But you can select as well an own four-fold address block for the WatchDog-Function. If the DigitalBooster DB-4 understands the address the DB-4 will confirm the assignment by flashing the red LED a little faster. Following the red LED will flash slower again.

  • Page 19: Db-4 Switching On And Off Via Accessory Address

    The DigitalBooster DB-4 can be switched On and Off via an accessory address (turnout command). Address programming explained in chapter 6. The DigitalBooster DB-4 can be switched Off via the basic address + 2 “round” of the address block programmed for the On/Off-switch function. The DigitalBooster DB-4 can be switched On via the basic address + 2 “straight”.
  • Page 20 The switching-on of all boosters can be done only with the Go-Key of the digital command station. If the jumper J1 “Short Report” has been removed is it possible to switch the DigitalBooster DB-4 which is connected to the external Stop/Go keys individually On and Off. Fahren und Schalten...

  • Page 21: Feedback Report For Booster-Management

    DigitalBooster DB-4 – Manual 11. Feedback Report for Booster-Management: The DigitalBooster DB-4 contains a Feedback Output for the information to the model railway software if the tracks receive digital current from the DB-4 or if this has been temporarily interrupted caused e.g. by a short circuit or by an emergency shutdown.

  • Page 22: Assembly Plan Of The Basic Pc-Board

    Phone: 0049 4122 / 977 381 Fax: 0049 4122 / 977 382 Internet: http://www.ldt-infocenter.com Subject to technical changes and errors. © 07/2015 by LDT Märklin and Motorola are registered trademarks. *RailCom® is a registered trademark from the company Lenz Elektronik, Giessen, Germany.

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