The Workshop bench power supplies

About MKN Digital

We specialise in the repair and servicing of all Märklin H0/OO model trains and are a registered Australian business, ABN ‘13693291720’, plus an authorised Märklin Spare Parts Stockist. There is extensive worksop tooling with guidance from the Märklin Service Department to have the best in this area. Major work undertaken is analogue or 6080 to MM2 native or MFX digital conversions. We also do full gear train replacements and AC motor conversions from LFCM, SFCM and DCM motors to 5 pole high efficiency DC motors, especially for digital conversion. A great running addition is the TELEX ‘Generation 2’ coupling upgrades in conjunction with mSD/3 or mLD/3, also a speciality. We can also supply tailor replacement mSD/3 decoders with Märklin database downloads for either sound files and/or motor profiles. Also we can enhance supplied WAV or MP3 user sound files with audio software for use in downloads to mSD/3 decoders.

We also work on Märklin Z and Gauge 1, plus current Trix.

Original 6021 digital controllers can be repaired in most cases where the power transistors have been blown due to incorrect connection. With twin pickup multiple units we can supply and install changeover boards (60973) and update the mapping for the supporting decoders accordingly.

With the older analogue Märklin locos the reverse unit can be overhauled to work like new, as we have repaired many, plus we have new essential replacement contact points for the common units. There are also (NOS) units and second hand ones in stock if all else fails.
Repair and servicing is also done on Märklin 1950’s type locomotives such as the *800 series, plus the 30/31* series right up to the current 36*, 37* and 39* series. Being an authorised Märklin spare parts stockist, there is an extensive range of spare parts in stock, and possibility the largest in Australia, with around 1,000 stock items. There is a full range of Märklin MM2, mLD/3, mSD/3 sound decoders, kept in stock. Märklin parts are sourced directly from the factory in Göppingen Germany, plus various trade house in Europe, depending on the locomotive manufacturing era and type. Strictly, ONLY genuine Märklin spares and decoders are used in all servicing and conversions.
There are three levels of service we undertake and have set prices.

  1. The first is an inspection. This is to disassemble, flush with solvent and reassemble the chassis. This is so we can judge and measure the condition of critical parts without the years of grease and dirt accumulation. The customer is always contacted at this point for options and pricing. Also simple repairs like broken motor leads or loose motor mountings, without chassis disassembly are within this schedule. For customers that need basic Märklin software upgrades such as for the CS3, CS2, MS2, decoder firmware, sound file downloads, these are simple tasks.
  2. The second is a basic overhaul, which includes the inspection cost, cleaning and servicing. In this schedule we replace all worn consumables such as traction tyres, motor brushes and lamps.  Minor repairs such as armatures are replaced or a decoder replacement are done in this category. Locomotives are returned with a report and a concise test label for date, amperage and digital address reference information.
  3. The third schedule is a major overhaul. This is usually for analogue to digital conversions or major gear train replacement where a lot of time is required to undertake the job.


Quality workmanship is upmost. As an apprentice trained electrician, our Mechanic/Technician has been trained in a background of proper heavy industry workshop skills such as dismantling mechanisms with presses and press tools, has worked on servicing flame detection control and the setup of PLC motor control systems. Also skilled in excellent soldering techniques essential with decoders. With an IT programming background the setup of decoders and tailoring to them is straightforward with this university trained knowledge. Workmanship is under warranty for 3 months.

Trade display, Epping Model Railway Club exhibition, Rosehill Sydney May 2023.
A 3167 MFX conversion using a 60972 mLD/3 decoder. Note the special test label to record essential repair information.

Marklin Modellers Sydney are holding their Annual Model Train exhibition again on the 12/13th August 2023. The first time after 3 years.

Get in Touch

MKN Digital

PO BOX 40 Bowral
NSW 2576 Australia

Use the Contact Page for emails.

Jobs or spare parts can be sent in the post or dropped off and picked up at the Bowral workshop by appointment.

Copyright MKN Digital 2023 – All rights reserved