16
Installing the decoder
The flexible printed circuit board is tightly folded to length and thus shortened.
Fold the printed circuit board by hand, making sure that the bends are too often
bent to avoid breaks of the traces. Would you wire your decoder completely free,
you can cut the flexible printed circuit board with sharp scissors directly to the
decoder part and subsequently bring desired on the adapter's cable connections.
The pin assignment is shown in FIG. 2.
6.5. Locomotives with 21MTC after NEM660
Some LokSound decoders are available in a variant for the 21MTC (see. Fig. 3).
Installation in locomotives with DIE serial interface is particularly simple,
because the decoder is also fastened mechanically by the special design of the
connector.
Please check if the impedance of the built-in loud- speaker really has 4 or 8
ohms! Some locomotives have speakers built with 100 ohms, as they were
originally designed for a LokSound V3.5 decoder.
• Remove the vehicle housing. Always follow the instructions of the locomotive!
• Remove the interface plug located in the locomotive. Keep the plug carefully.
• Search the PCB of the locomotive for the missing pin of the plug connector. The
lack of pen used for encoding. Note its position.
• The decoder can be inserted in two ways: either the pins are inserted through
the decoder, the socket of the decoder remains after plugging therefore visible
(installation position above). Or, the decoder is so inserted that the pins end up
directly in the socket. After inserting the connector is no longer visible here
(mounting position below). This method is common to find in Brawa®
locomotives.
• What is the correct position depends on the locomotive. The decisive factor is
the position of the marker-pin on the crucial indicator.
• Plug the decoder so that the coding of the locomotive interface corresponds
with the decoder.
• Practice when inserting too much force! The decoder must be easily plugged in
without much effort.
• Check whether the decoder sits correctly.
6.5.1. Märklin® locomotives with 21MTC
Unfortunately, many newer Märklin® locomotives, but also some British
locomotives with 21-pin interface does not adhere to the normgemä- SSE
interpretation of 21MTC. These locomotives expect AUX 3 and AUX 4 amplified
signals at the outputs. In these Fäl- len you have to resort to a LokSound
decoder with 5 21MTC "MKL" execution. At these decoders the outputs AUX3
and AUX 4 are designed strengthened. The installation itself is as described in
Section 6.5. shown.
6.5.2. Connection of C-Sine motors ( "Soft Drive-Sinus")
The sound decoders can (also "Soft Drive-Sinus") does not control the built in
newer Märklin® models with C-Sine motors directly. For this purpose, a special,
located in the locomotive factory control board is needed, which in turn can be
driven by a sound decoders. Märklin® uses the 21MTC and use either the
normal engine signals theLokSound decoder or a SUSI interface for information
exchange. The LokSound 5 with 21MTC suitable for that can be triggered ng the
C-Sine control electronics provided some parameters are set correctly. Chapter
11.4. explains the necessary attitudes.
6.6. Locomotives with Next18 interface
Some LokSound decoders are delivered with a 18-pin Next18 interface.
Installation is carried out in accordance with in section 6.6. described. Fig. 4
shows the pin assignment.
Summary of Contents for 58315
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