Reparatur Hohner Electronium TK (Netzteil, MIDI)

[dangrigorie]

Anm. d. Mod.: Ausgelagert aus https://www.musiker-board.de/funkti...statur-kontakt-gebrochen-schadensanalyse.html
Für abweichende Fragestellungen bitte immer einen separaten Thread erstellen und nicht irgendwo posten.
Danke und Gruß, Wil Riker

Hello! I need some help. I recently purchased a Hohner Electronium TK from a person who modified him ... He cut out the wires from Verstärker, and glued 4 and 7 from Netzteil. So he powered accordion by Verstaker jack with 6V. Accordion midi controller functions as, but not all functions. For example midi volume does not work. I want to make it again as it was original. I made the diagram in the picture, so I think it should be connected the wires. I can confirm to me if it's good? I noticed the original scheme, that I have to power it at 15V at 1 and 7 Netzteil (1 and 2 board). Is that correct? I can control the volume midi? By bellows or expression pedal? In the original version is associated with the EA150? Or the other module? If I correctly 15V power, I can hear the sounds of the original by Verstärker? Thank you very much!



Hallo! Ich brauche etwas Hilfe. Ich kaufte vor kurzem ein Hohner Electronium TK von einer Person, die ihn verändert ... Er schnitt die Drähte von Verstärker, und geklebt 4 und 7 vom Netzteil. So fütterte er Akkordeon von Verstäker Buchse mit 6V. Akkordeon-MIDI-Controller-Funktionen wie, aber nicht alle Funktionen. Zum Beispiel midi Lautstärke funktioniert nicht. Ich will es wieder machen, wie es ursprünglich war. Ich habe das Diagramm im Bild, so dass ich denke, es sollte bezogene Themen sein. Ich kann mir bestätigen, ob es gut? Ich bemerkte die ursprüngliche Regelung, dass ich an die Macht es zu 15V bei 1 und 7 Netzteil (1 und 2 Schild). Ist das richtig? Ich kann die Lautstärke midi kontrollieren? Durch Balg oder Expression-Pedal? In der Originalversion ist mit dem EA150 verbunden? Oder anders? Wenn ich mich richtig 15V, kann ich die Sounds des Originals durch Verstärker hören? Vielen Danke

!

 

[Musikerclaus]

Hallo,

are you sure that you have a Electronium TK? I cannot understand what you are saying about the Power Supply. It is not possible to operate the TK with 6 V, and it is also not possible to work with 15 V only. The TK needs two supply voltages; + 20 V and - 20 V. These two Voltages are modified internally to + 12 V, - 12 V and + 5 V. So I cannot understand how somebody could modify that to a 6 V - Supply.

Btw: What Country are you coming from?

Greetings Claus

 

[dangrigorie]

Hi Claus, I fail to feed correctly accordion.
Please help me.
I'm from Romania and of course is electronium tk.
I wrote to Hohner, but they could not help me.
In drawing board at 1-8, I powered 2 red + 6 V and 6 black - 6 V.
4 yellow and 5 green I connected midi.
The light that illuminates in the bellows Photo resistor needs 12 V may be.
I powered separately but in Kontakt midi analyzer varies from 127 to lower values​​, but not opening properly depending on the bellows.
The rest of midi functions are ok, key transpose and octave.
Can you tell me specifically where itt powerd itself must exactly? Even with several different power supplies.
Thanks!

Grigorie Dan

 

[Musikerclaus]

Hello Grigorie Dan,

I'm very sorry, but I still cannot quite understand what you really want. All I see is that you have problems with the power supply.

That Hohner could not help you is clear: they stopped all electronic activities many years ago and there is nobody left who knows anything about that; they are in rent or already dead.

It is still impossible to power the instrument with +6 and -6 V. As I told you before, you need +20 and - 20 V. The problem with the Bellows is very difficult, because the influence of the lamp and the piece of film attached is very difficult to adjust.

I think maybe I could help you this way: I can send you copies of

- the Instruction manual
- a drawing of the power supply used when no EA 150 is available
- the schematics of the EA 150 with the power supply for amp and instrument

If you want this, give me your postal adress via PN and I will send you this papers.
Please remember: The Board will switch to a new software next week and then it may be that there will be some problems until this is working properly so your answer has to be fast.

Greetings to Romania

Claus

 

[Musikerclaus]

Hello Dan,

now I sent you the complete set of drawings and schematics of Instrument and Amplifier as well as the operating manual.

I hope this will help for getting the baby going.

Greetings

Claus

 

[dangrigorie]

Hello!Yes I received the paperwork, thank you! Now I'm looking for a source of 20 V and try to power on.
Dan Grigorie

 

[dangrigorie]

Hello! You think this adapter is ok for electronium tk?

http://www.ebay.com/itm/Hohner-MIDI-Accordion-Adaptor-/261648181515?

 

[Musikerclaus]

Hello Dan,

sorry, but afaik this device will not fit at all. It is designed for the Hohner MIDI-Akkordeon and has different voltages as for the Electronium needed.

Greetings Claus