M4 stands for mfx: ESU can't use the word "mfx" which is patented by Maerklin

Berdos,

I assume you are using a M♪2rklin Command station and not an ECoS.

With an ECoS and the V4 soundedocoders/lokpilot you can use RailComPlus which has a wider range of options than the mfx protocol.

the 3072 is not in the conversion summary of Märklin locos anless you do some modification (minimal) or you use the cureent 3 pole armature with a permanent magent.
To fit a sound decoder into these locos will be a task as an ordinary HO loksounddecoder, I guess will be to big so you would have to look at a micro loksound decoder and the same goes for the speaker, you will have more room in the 3072 than the 3065.

I would say you'll be better of buiying a sound decoder (21pin) with an adapterplate ESU 51968 which does fit inot the spot where your reversing unit was. and this applies for both locos, than you have the find room for the speaker.
Loksound V4 decoder has quite a few new gadgets added.

regards.,

John

P.S.

there are several options and benfits when you [purchase an ECoS and a lokprogrammer.

a.) you can buy a generic sound decoder with a 21 pin connection
b.) you can download a soundfile from ESU and upload it into your sound decoder
c.)you can utilize 21 functions instead of 15.
d.) You can have RailComPlus which recognizes your decoder automatically and keeps them stored in your ECoS.
e.) you can update your decoder

Hello,
-60943 is for 3065 only;
-Use 60944 for 3072, but beware, as John said I'm not sure 60944 kit will fit in 3072 without some modifications...FYI I've converted last week a 3053 which is mentionned in the 60944 booklet - so expecting things will go easily-, but when trying to insert the magnet, a wheel was blocking the insertion. I had to remove a wheel, set the new kit, then reset the wheel using specialized tools (happily I had them, but if you don't you're in trouble !). Do a check before unmounting the motor. If the magnet (or the cover plate) doesn't fit, use a magnet from ESU and keep the 3 pole original rotor and cover plate. I've converted successfully my 3072 and 3147 using ESU magnet and original 3 pole rotor with a associated LPV4 (no sound).

Cheers
Fabrice

With ESU LokSound decoders you can reach 9 or 17 functions, with mfx decoders 9 or 16 functions.

Decoders have sockets nowadays. NEM 652 is one standard (8 pins), 21MTC is another (21 pins).
NEM 652 does not include pins for the speaker.

It depends on your taste whether you take the M4 (i.e. mfx) decoder or the normal LokSound decoder. Both will work with the MM protocol of your 6021.

Thanks. Are you sure about this? I read in ESU site that "...LokSound V4.0 decoders are offered with all established plugs..."

This is the wireless decoder right? Is this compliant with all Marklin mobile controllers?

Berdos,

Unless you are mechanical minded, to install a sound decoder into these locos + a speaker is not an easy task, it can be done but you have to know what you're doing and have to understand the conseuqences of qwuality what type of dsound decoder and speaker you install.
Although they have improved the sound channel and the type of speaker they are still way off of producing a convincing sound.
the smaller the speaker the less reproduction of the actual sound you get.

So unless you are aware of the pitfalls of sound decoders + the combination of speakers you may not be as happy when finished with the outcome.

P.S.

To my surprise I've installed an ESU sound decoder into an American steam loco, similar to the Big Boy, the sound is actually from a Big Boy. I've found a buyer in Germany but he said, he doesn't need the sound decoder he uses American sound decoders for these locos they are much cripser in the reporduction of the sound.

It could be ESU is the leading sound decoder producer in Germany or Europe, although Zimo and others are taken on the task (Zimo's decoders in all Roco locos) we may not getting our value for money but at the moment we don't have another choice, well the other choice is not installing sound decoders.

John

All LokSound decoders sold separately allow uploading new sounds.

My point was: those with 8-pin plug can be ordered with the desired sound pre-installed from the factory. For other decoder sockets, the desired sound must be installed using the LokProgrammer. Those who don't have access to a LokProgrammer will need help from a friend or friendly dealer.

Hi,

finally I have digitized the old BR V60 (3065 marklin item) with a LokPilot 4. I didn't change the 3pole motor with a new 5pole, just replace the old magnet with an ESU magnet. Loco's motion is good but not very smooth. Do I have to set specific CV values on my LokPilot decoder for my 3pole motor in order to improve driving characteristics?

thanks all!
Nikos

Somehow I missed this thread.
I just a week ago finished a conversion on a 3065.
It fits my need perfectly. Era 3 and the good Telex couplers.







I started with the 8 pin decoder. I usually use a 21 pin decoder and the adapter board so a damaged decoder can be easily replaced, but for these little lokos with poor grounding, I went with a direct wired decoder and the ESU 54670 Powerpack. Getting a 21 pin decoder with the adapter board and the Powerpack into the loko would have been impossible. See the pictures.

I feel the Powerpack is essential for smooth operation of these three and four axle lokos. The rubber tires insulate two of the six wheels from ground. On crossing tracks and M-track switches, one of the two rails is also isolated from ground. So you have two wheels at best making your ground connection to the rails. My experience is they will stall incessantly.

I also work "backwards" when installing a decoder. Even with the 8 pin decoder that has the wires solder to the decoder, I remove those wires. Then I wire all connections to the loko using ESU's color code for the various connections. This way I can bundle the wires into a harness using shrink tubing and work my harness back to the decoder. Once the harness is finished, all the wires are cut to the length needed to solder to the decoder or adapter board. I found this provides the neatest wiring installation. I temporarily hold the decoder or adapter board to my workbench with two face tape. This keeps it in place while I solder as I do not have that third hand evolution left out.

As Tom stated, see your manual for the correct motor settings for the motor you have. They give settings for a dozen or more motors. You just need to pick the settings right for your loko. Or better still, buy a LokProgrammer. You will be greatful you did. With it, one checkbox sets all the motor values for you.