L
ittfinski
D
aten
T
echnik (
LDT
)
Assembly Instruction
Multi-Digital
4-fold turnout decoder
with possible external power supply
from the Digital-Professional-Series !
S-DEC-4-DC-B
Part-No.:
910211
>> kit <<
Compatible to the DCC-Format:
(e.g. Lenz Digital Plus, Arnold-, Märklin-Digital=, Intellibox,
TWIN-CENTER, Roco-Digital, EasyControl, ECoS,
KeyCom-DC, Digitrax, DiCoStation, Zimo and others)
(switching of turnouts via Lokmaus 2® and R3® is possible)
For digital control of:
⇒
up to 4 twin-coil magnet accessories
(e.g. turnouts or semaphore-signals).
⇒
up to 8 single-coil magnet accessories
(e.g. uncoupling tracks).
⇒
up to 4 permanent power switch units [DSU]
(e.g. illumination).
This product is not a toy! Not suitable for children under 14 years of age!
The kit contains small parts, which should be kept away from children under 3!
Improper use will imply danger of injuring due to sharp edges and tips! Please store
this instruction carefully.
CE Part-No.:
21 21 13
yellow point
Introduction:
You have purchased the 4 fold turnout decoder kit
S-DEC-4-DC for your model railway supplied within the
assortment of Littfinski DatenTechnik (LDT). The S-DEC-4-DC
kit is a high quality product which is easy to assemble.
We are wishing you having a good time for assembling and using
this product.
General:
Tools required for the assembly
Please assure that the following tools are available:
•
a small side cutter
•
a mini soldering iron with a small tip
•
solder tin (if possible 0.5mm diameter)
Safety Instructions
•
All electrical and electronic components included in this kit
shall be used on low voltage only by using a tested and
approved voltage transducer (transformer). All components
are sensitive to heat. During soldering the heat shall be applied
for a very short period only.
•
The soldering iron develops a heat up to 400°C. Please keep
continual attention to this tool. Keep sufficient distance to
combustible material. Use a heat resistant pad for this work.
•
This kit consist of small parts which can possibly be swallowed
from children. Children (especially under 3 years) shall not
participate on the assembly without supervision.
Set-Up:
For the board assembly please follow exact the sequence of the
below assembly list. Cross each line off as done after
completing the insertion and the soldering of the respective part.
For the diodes and the zener diodes please keep special
attention to the correct polarity (marked line for the cathode). The
zener diode D4 has a thicker connection wire suitable for
position D4 only.
With reason to different makes of electrolytic capacitors you
will find different markings of the polarity. Some are marked with
"+" and some are marked with "-". Each capacitor has to be
assembled to the board that the marking on the capacitor is in
correspondence with the marking on the pc-board.
Integrated circuits (ICs) are either marked with a half round
notch on one end or a printed point for the correct mounting
position. Push the ICs into the socket assuring that the notch or
the point is corresponding with the triangular marking on 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.
Please attend to the mark "+" of the rectifiers. Some
manufacturers mark the "+" connections additionally with a
longer connection wire. If the rectifier shows a flattened side as
marking this side has to correspond with the marking on the pc-
board.
Assembly List:
Pos. Qty. Component
Remarks
Ref.
Done
1
1 Printed circuit board
2
1 Z-Diode BZX ... 5V1
attend to the polarity!
D1
3
2 Diodes 1N4003
attend to the polarity!
D2, D3
4
1 Z-Diode BZX ... 30
attend to the polarity!
D4
5
4 Resistors 1,5kOhm
brown-green-black-brown
R1..R4
6
1 Resistor 18kOhm
brown-grey-black-red
R5
7
1 Resistor 220kOhm
red-red-black-orange
R6
8
1 Resistor 1MOhm
brown-black-black-yellow
R7
9
3 Capacitors 100nF
100nF = 104
C3..C5
10
3 IC-Sockets18poles
IC1..IC3
11
1 IC-Socket 8poles
IC4
12
1 IC-Socket 6poles
IC5
13
1 Resonator 8MHz
CR1
14
1 Electrolytic-cap. 100uF/25V
attend to the polarity!
C6
15
1 Electrolytic-cap. 470uF/35V
attend to the polarity!
C7
16
1 Rectifier
attend to the polarity!
GL1
17
2 Multi-Fuse R050
MF1, MF2
18
1 Push Button
S1
19
1 Clamp 2poles
KL1
20
5 Clamps 3poles
KL2..KL6
21
1 IC: Z86E0...PSG
attend to the polarity!
IC1
22
2 IC: ULN2803A
attend to the polarity!
IC2, IC3
23
1 IC: 93C46
attend to the polarity!
IC4
24
1 IC: CNY17
attend to the polarity!
IC5
25
Final control
Made in Europe by
Littfinski DatenTechnik (LDT)
Bühler electronic GmbH
Ulmenstraße 43
15370 Fredersdorf / Germany
Phone: +49 (0) 33439 / 867-0
Internet: www.ldt-infocenter.com
Subject to technical changes and errors.
05/2019 by LDT
Arnold, Digitrax, Lenz, Märklin, Motorola, Roco and Zimo are
registered trade marks.
