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Offline aclassifier  
#1 Posted : 10 February 2016 22:28:15(UTC)
aclassifier

Norway   
Joined: 18/03/2012(UTC)
Posts: 64
Location: Trondheim
Hi!

I have not been able to reduce the volume (on Märklin 37294 on the E191 DB) by entering a new value in Mobile Station II (v.1.81).

  • "Program CV" is striked out as not an option
  • "Vol" (Change Volume) does not seem to work


The MFX MM2 Address is set to 20, no collision.

The CV addresses are (from the booklet) 01 (Address), 03 (Acc), 04 (Breaking delay), 05 (Max speed) and 08 (Reset) - but not directly settable. Also, there is no "Vol" there, even if that's an option in the "Change loco" - so that's probably the explanation of why it doesn't work.

I ended up with a 5 Ohm resistor in series with the speaker. 10 Ohm also seemed to be suitable, but it would perhaps have been too much. The speaker is 8 Ohm, and I just assume that this is OK for the speaker driver. However, I don't like this solution, but it does decrease the power in the speaker by some 62%. Of course, the frequency response is modified some, but it doesn't sound like it's audible.

Does my reasoning here hold water?
Offline H0  
#2 Posted : 10 February 2016 23:45:28(UTC)
H0


Joined: 16/02/2004(UTC)
Posts: 13,497
Location: DE-NW
Hi!

You run the loco using mfx, so the MM address is not used and the MM CVs are not used either.
Setting the volume should work.

The loco has mfx+ and MS2 v 1.81 has some bugs with respect to mfx+ locos.

Speaker impedance of 4 ohm or more will be OK for the decoder, so no damage done with a resistor in series.
Regards
Tom
---
"In all of the gauges, we particularly emphasize a high level of quality, the best possible fidelity to the prototype, and absolute precision. You will see that in all of our products." (from Märklin New Items Brochure 2015, page 1) ROFLBTCUTS
UserPostedImage
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Offline aclassifier  
#3 Posted : 11 February 2016 20:04:14(UTC)
aclassifier

Norway   
Joined: 18/03/2012(UTC)
Posts: 64
Location: Trondheim
Thanks! Now, what is the last (running) version of the Mobile Station II firmware?

I learn that it may be updated via a connection box and a newer unit?

Are there other alternatives to update over the net and via a local download over some sort of interface? If I buy a USB-CAN box (is it standard CAN?)? Or a is there a JTAG inside (for download of the whole thing including or not of the bootloader), EHCI debug port etc.?

Is the circuit diagram available? Which processor do they use?
Offline H0  
#4 Posted : 11 February 2016 20:18:23(UTC)
H0


Joined: 16/02/2004(UTC)
Posts: 13,497
Location: DE-NW
Known upgrade options are from a current MS2 or a current CS2.
Latest version is 2.50.
Regards
Tom
---
"In all of the gauges, we particularly emphasize a high level of quality, the best possible fidelity to the prototype, and absolute precision. You will see that in all of our products." (from Märklin New Items Brochure 2015, page 1) ROFLBTCUTS
UserPostedImage
thanks 1 user liked this useful post by H0
Offline aclassifier  
#5 Posted : 11 February 2016 22:16:16(UTC)
aclassifier

Norway   
Joined: 18/03/2012(UTC)
Posts: 64
Location: Trondheim
By the way.

I had to fasten one of the 2.5 mm (?) nuts on the non-driving wheel set because it some times stopped against the ladder.

Is there a suggesion as to an ok toolset for these small bolts and screws?
Offline RayF  
#6 Posted : 12 February 2016 09:46:24(UTC)
RayF

Gibraltar   
Joined: 14/03/2005(UTC)
Posts: 15,415
Location: Gibraltar, Europe
Originally Posted by: aclassifier Go to Quoted Post
By the way.

I had to fasten one of the 2.5 mm (?) nuts on the non-driving wheel set because it some times stopped against the ladder.

Is there a suggesion as to an ok toolset for these small bolts and screws?


Marklin make a set with the right tools for their HO locos. It's catalogue number is 70900

http://www.maerklin.de/e...pdb_pi1%5Bsearchres%5D=1
Ray
Mostly Marklin.Selection of different eras and European railways
Small C track layout, control by MS2, 100+ trains but run 4-5 at a time.
thanks 1 user liked this useful post by RayF
Offline dickinsonj  
#7 Posted : 16 February 2016 14:34:15(UTC)
dickinsonj

United States   
Joined: 05/12/2008(UTC)
Posts: 1,158
Location: United States
I agree with Ray - the Marklin tool set 70900 is very helpful.

It has three nut drivers which make removing and installing the nuts on the drive rods/wheels much easier.
Regards,
Jim

I have almost all Märklin and mostly HO, although I do have a small number of Z gauge trains!
I have models from Era I to Era VI, but I try to focus on Eras I & III. Whoops, that one got away from me. Let's just say I focus on cool trains, regardless of the particulars :-)
So many trains and so little time.
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