Jetzt meinem Braun 400S-Plattenspieler braucht einen Ersatzmotor?

Alle Braun HiFi-Plattenspieler ab dem PCS 5
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Wrecka Stow
Neuling
Neuling
Beiträge: 6
Registriert: 27.03.2021, 22:47

Jetzt meinem Braun 400S-Plattenspieler braucht einen Ersatzmotor?

#1 Beitrag von Wrecka Stow » 08.06.2021, 21:03

Thanks to a fellow forum member, the repair shop was able to get the platter moving on my lovely record player, but it can’t reach the appropriate speeds. He says that he has disassembled, cleaned and reassembled the motor twice with little improvement.

He thinks that I should just try to source a replacement motor, which I am happy to do. But first, has anyone else experienced this problem and solved it another way?

Thanks in advance, friends.

wickerge
Braun-Freak
Braun-Freak
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Registriert: 26.05.2009, 21:52

Re: Jetzt meinem Braun 400S-Plattenspieler braucht einen Ersatzmotor?

#2 Beitrag von wickerge » 09.06.2021, 19:18

Hello Kristina,
the is a known problem with the electric motor of the PS350/450 also used in the Audio 400. There is a plastic part inside the motor, which transfers the movement of the rotor to drive wheel for the rubber belt. It is glued to the rotor and if the connection is broken, the movement of the drive wheel is no longer fast enough. Your expert has to disassemble the motor (again) must glue the plastic part to the rotor again. If the problem is present, the motor produces a clickering noise when running, which is quite typical.

Best Regards
Gerhard

Litton72
Eroberer
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Registriert: 30.07.2019, 17:07
Wohnort: 51491 Overath

Re: Jetzt meinem Braun 400S-Plattenspieler braucht einen Ersatzmotor?

#3 Beitrag von Litton72 » 09.06.2021, 21:34

Dear Kristina,

if your turntable runs too fast, then you may have a problem caused by the mains frequency of 60 Hertz in your country.
I hope the link is working:
https://www.flickr.com/photos/spierisf/6622557281/

If this is your problem, you should ask your technician for help selecting the correct parts and eventually re-modify the turtable to 230VAC (most of the inverters have a 230VAC/50Hz output)



Hallo Kristina,

wenn dein Plattenspieler zu schnell läuft, hast du evtl. ein Problem mit der 60 Hertz Netfrequenz in deinem Land.
Ich hoffe, der Link funtioniert:
https://www.flickr.com/photos/spierisf/6622557281/

Wenn das dein Problem ist, solltest du deinen Techniker bitten, dir bei der Auswahl der Teile und evtl. bei der re-modifikation deines Plattenspielers auf 230VAC zu helfen. (die meisten 12VDC zu 50Hz AC Inverter liefern 230V am Ausgang).

Best Regards

Hajo
Was auf anhieb funktioniert, taugt nicht. :wink:

Litton72
Eroberer
Eroberer
Beiträge: 61
Registriert: 30.07.2019, 17:07
Wohnort: 51491 Overath

Re: Jetzt meinem Braun 400S-Plattenspieler braucht einen Ersatzmotor?

#4 Beitrag von Litton72 » 10.06.2021, 22:59

Dear Kristina,

there is no need for a replacement motor for your turntable. Here comes some (hopefully) helpful information.
In addition to Gerhard (wickerge), I found a thread where the plastic part of the motor is described and the problem was solved:
viewtopic.php?t=4257

Bild

On the other hand, if 60Hertz are the problem, according to the servicemanual you have to replace the Motorrolle (Item 49). There only is a very small chance to find the correct "Motorrolle" for the 60Hz modification on the market but maybe here at the forum:

Bild

Bild

It may be easier, to use the inverter solution.

Have a nice day.

Best regards

Hajo
Was auf anhieb funktioniert, taugt nicht. :wink:

Wrecka Stow
Neuling
Neuling
Beiträge: 6
Registriert: 27.03.2021, 22:47

Re: Jetzt meinem Braun 400S-Plattenspieler braucht einen Ersatzmotor?

#5 Beitrag von Wrecka Stow » 11.06.2021, 17:44

Thanks again everyone. I'll post an update when I have one.

Cheers!

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