Uhlenbrock Elektronik 75900 User manual

Function Decoder 75900
for the Märklin-Motorola Format
Switches ancillary functions like horn, whistle, lights, and smoke.
Properties
These decoders are suited for both the old and the extended Motorola data format. They feature
a pair of direction-dependent outputs that are governed by the function und off keys plus 4
extra outputs accessible via the f1 to f4 keys. All outputs may be assigned to two individually
adjustable flash generators.
Programming is possible with Intellibox or Control 80/f. Motor-rpm, flash rate, or dimming can be
adjusted and changed as desired.
What can be connected to it?
Motors
DC-motors with a current consumption of max. 0.9 amp.
Lights
Each output accepts several lamps in parallel to a max. load of 0.9 amp.
Telex remote uncoupler
Both magnets wired in series can be connected to any output.
Smoke generators
Use only generators suited for digital operation.
Shuttle trains
The extended Motorola format (Gauge I format) allows for direction-dependent headlights of
shuttle trains.
Technical Data
Ancillary outputs: 6 x 0.9 amp capacity
Total load: 0.9 amp
Size: 19 x 16 x 5 mm (3/4" x 5/8" x 3/16")
Address range: 1-255, accessible by Intellibox
1-80, when employing another central unit
The decoder is factory preset to address 01 and digital operation.

Fitting the 75 900
Cable connections
In a vehicle, the red lead is connected to the
pickup, the brown one to the chassis/frame.
When used as a stationary decoder, the red and
brown leads have to be connected to the
respective output tabs of the Central Unit.
All other outputs are used for effects.
Each device has to be connected to an output,
and the return either to the brown or the black
cable as shown in the sketch.
Fixing the unit in the vehicle
Use the supplied adhesive pad for fixing where
there is room for the decoder. The pad keeps the
unit insulated and fixed in its position.
In case the attached device has a high current consumption, we recommend to fasten the decoder
directly to a metal chassis frame or heat sink with hot glue. All common brands are suitable for
this.
Setting into operation
Check for proper wiring after installation with a wiring checker or an ohmmmeter. Make sure that
nothing conductive is touching the unit.
A short circuit from decoder parts to input or chassis
or at the motor / lamp outputs may destroy the device
red
skater
chassis
A4
A3
A2
A1
A5
blue
black
+20V
green
yellow
gray
orange
brown
Important
The coding switch #2 on the back of Control Unit Märklin 6021 must be on to issue the extended
Motorola data (Gauge I) format.
The function outputs are only accessible when in extended data format mode.
A Märklin Control Unit 6020 can be used with this decoder only if function #02 is programmed
to value 02 (old data format).
Programming of Uhlenbrock Decoders by ntellibox
The most comfortable way to program a decoder is offerd by the Intellibox. A menu-driven
programming mode in plain english is provided. Programming is carried out by selecting the menu
for function decoders (760 or 75900).
You find exact instructions in the Intellibox handbook.
Programming of Uhlenbrock Decoders by LOKTOOL
This computer routine is used to program Uhlenbrock decoders by applying a Märklin central unit
in connection with a Märklin interface. See reverse for a brief description.

Important
If a decoder will not react after a programming cycle, most probably its address has been
altered inadvertently. To resolve this situation, either try all address settings, or Intelliboxs, or
Loktools address search function.
Wrong settings may be corrected by resetting the decoder using programming function 10.
Programming of Uhlenbrock Function Decoders
by a Märklin Central Unit
Follow exactly these steps when programming the decoder.
Do not push any other keys.
1. Preparation
sConnect a Märklin central unit together with a control 80/80f or a control unit
to the track.
sSwitch off power supply for at least ten seconds, then switch on again.
All digital signals that may possibly interfere have died away.
sKey in decoder address.
Every new decoder is set to 01.
sHold kno in direction reversal position for at least 8 secs.
Decoder changes over to programming mode.
2. Programming of individual functions
It does not matter whether functions are programmed individually or consecutively.
Functions not called up remain unaltered.
A lamp connected to the f1 output will flash four times to acknowledge a programming step.
2.1 Address
sCall up function: Key in 01 and shortly push kno to reverse - a lamp will flash
sSet value: Key in 01- 80 and shortly push kno to reverse - a lamp will flash
2.2 Selection of Data Format
sCall up function: Key in 02 and shortly push kno to reverse - a lamp will flash
sSet value: Key in 01 for the extended format (Gauge I format) and shortly push kno to reverse - the lamp will flash
Key in 02 for the old data format (dou le frequency) and shortly push kno to reverse - the lamp will flash
The old format renders functions f1 to f4 , the extended Motorola format will also utilize the direction info.
2.3 Output dimming
sCall up function: for f1 and f2 - key in 03 and shortly push kno to reverse - the lamp will flash
for f3, f4, and function - key in 04 and shortly push kno to reverse - the lamp will flash
sTo set the duty cycle: 25% - key in 01 and shortly push kno to reverse - the lamp will flash
50% - key in 02 and shortly push kno to reverse - the lamp will flash
75% - key in 03 and shortly push kno to reverse - the lamp will flash
100% - key in 04 and shortly push kno to reverse - the lamp will flash
2.4 Defining of Flasher Outputs
sCall up function: To assign frequency#1- key in 06 and shortly push kno to reverse - the lamp will flash
To assign frequency#2 key in 08 and shortly push kno to reverse - the lamp will flash
sSet value: Flashing outputs-key in 01-31and shortly push kno to reverse - the lamp will flash
No flashing at all-key in 32 and shortly push kno to reverse - the lamp will flash
The code value is derived from an addition of the output weights: f1 = 1, f2 = 2, f3 = 4, f4 = 8, function = 16.
When e.g. f1 and f3 are set to flashing, the code value must be 05 (1 + 4).
2.5 Setting the frequency
sCall up function: To call frequency#1 - key in 07 and shortly push kno to reverse - the lamp will flash
To call frequency#2 - key in 09 and shortly push kno to reverse - the lamp will flash
sSet value: Rate 8 times per sec - key in 01 and shortly push kno to reverse - the lamp will flash
Rate 1 time per sec - key in 08 and shortly push kno to reverse - the lamp will flash
Rate 1 time per 8 sec - key in 64 and shortly push kno to reverse - the lamp will flash
The allowed values range from 01 -79. In analogy to 2.4 the actual flash period is determined by adding the rate weights.
2. Reset
sKey in 10 and shortly push kno to reverse - the lamp will flash
The decoder will be set to the preset values: Address 01, extended Motorola data format,
no flashing, frequency rates set to 1 time per sec, and 100% duty cycle.
3. Leaving Programming ode
s Key in 80 and shortly push kno to reverse.
Decoder returns to its normal operating mode.
01
01
32
08
04
-
Default setting

Uhlenbrock Elektronik GmbH
Mercatorstr.
D-4 244 Bottrop
Made in Germany
These are your advantages:
Two years warranty
from date of purchase
Service
In case of an eventual failure please return the defective item to us for
repair. Please include purchase proof and a short description of defect,
as well as stating the decoders address setting.
Hotline
In case of questions,we are ready to answer them for you!
Directly contact our technician: (49) 2045 858327
Mo Fr except Wed 14:00 16:00 hrs CET, Wed 16:00 18:00 hrs CET
The figure 2 at the end of the item no.
means that this article is delivered with
an english discribtion.
Loktool 2.0 for Windows (TM)
contains these features:
Programming of decoders - comfortable input of all parameters, store in decoder profile
database.
Address search function - for all decoders using the Märklin-Motorola data format.
Controller screen - six controllers are shown on a screen display.
Hardware requirements: A Märklin central unit and 6050/6051 interface connected to a PC.
Programm will run on all PCs from 386-25 on under Win 3.x, 95/98 and NT.
www.uhlenbrock.de
Be it most recent information about Intellibox, a pricelist or a listing of authorized dealers, plus
various publications to download, our website warrants your visit in every case.
Warranty Statement
Every item is fully tested for functioning before shipment. If a defect occurs within two years
after purchase, the item will be repaired free of charge against presentation of purchase proof.
Damages caused by overload or improper treatment are not covered by this warranty.
For EU only
Please note that decoders may only used in models carrying the EC conformance label.
tem no. 75 902 11.01Be