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  • Re: Beosound 9000 MK1 power problem

    D30 is what I wanted to point to as well. It is a Zener so at regular 5V it shouldn't do anything. I think it's an overvoltage protection if for any reason the 5V line should go up higher. Seen this kind of protection elsewhere. Switching current for the regulator is only D22's task... I'm not sure it was neccessary to go up to the 60V Schottky; The higher the inverse voltage of schottkys the higher is their Vf. I've been there as we had an assembler thinking he'd do us a
    Posted to The Workbench (Forum) by hemenex on Tue, Jun 8 2021
  • Re: Beosound 9000 MK1 power problem

    Hi Peter, I do have the BS9000 MK1 type 2521...2530 service manual # 3538847 09-96 but... The diagrams M and N are here on other page numbers than you mentioned. I have attached my 2 pages related to the power supply and the power switching. the diagram named L in my manual is called "motor control and detection"... HTH. By the way - where in Germany are you located? North or South? Greetz, hemenex
    Posted to The Workbench (Forum) by hemenex on Mon, Jun 7 2021
  • Re: Cannot access digital Radio

    Does it display the station but there's no sound? I'm afraid I have read that Australia is using DAB+, not DAB. B&O's BC2's had DAB if so (there were ones without DAB as well) And there's a very rare version having DAB+ which module is no more availabe since a long time :-( Did it ever work before?
    Posted to General Discussion & Questions (Forum) by hemenex on Sat, Apr 24 2021
  • Re: Beolab 3 Ersatzkabel DIN

    Aber Achtung: es gibt zwei Arten von 8-poligen Steckern: Der "linke" wird oft auch als "Hufeisenform" bezeichnet Der "rechte" (Kreisform) ist der Richtige... Gruß, hx
    Posted to Deutsche BeoWorld (Forum) by hemenex on Tue, Sep 8 2020
  • Re: gebrauchte B&O Anlage aufbauen

    [quote user="michagrosche"]Tangential-Plattenspieler[/quote] welchen? Es gibt welche mit und ohne eingebauten RIAA Die Master 6500 / 7000 haben keinen eingebauten, also Beogram 6500 oder 7000 (da ist der RIAA im Plattenspieler) nötig. hx
    Posted to Deutsche BeoWorld (Forum) by hemenex on Mon, Feb 3 2020
  • Re: Beosound 1 clock problem

    Just do what I recommended. .Press << and >> (simultaneous) in Standby. pretty sure it will display "AU" (=AUX) if it's a MKI Don't know about type number differences but I think SW2.0 and up is MKII hx
    Posted to General Discussion & Questions (Forum) by hemenex on Tue, Dec 24 2019
  • Re: Beosound 1 clock problem

    could it be this is MK1? As far as I remember only MKII had the build-in-clock. Pressing << and >> in standby leads to what? AU -> MKI clock: MKII (In MKII you have to press CD< and CD> to get AU) HTH hx
    Posted to General Discussion & Questions (Forum) by hemenex on Mon, Dec 23 2019
  • Re: Beogram 4500 MMC2 defekt?

    So ein MMC-System hatte ich auch mal. Hat man es "runterplumpsen" lassen hat's funktioniert, beim normalen Aufsetzen nur gekratzt. Es ist die Aufhängung im MMC; wirst Du reparieren lassen müssen, nicht ganz billig Meins war noch bei Axel, inzwischen machts wohl sein Nachfolger. Grüße, Gunther
    Posted to Deutsche BeoWorld (Forum) by hemenex on Fri, Oct 25 2019
  • Re: Beolab 4, fix it, bin it,It's worth it

    I think the correct FET's devicename is STS9NF3LL https://www.st.com/resource/en/datasheet/cd00002691.pdf But they are obsolete... Regards, hx
    Posted to General Discussion & Questions (Forum) by hemenex on Tue, Oct 8 2019
  • Re: Open CD tray with remote?

    Hello Dennis, could you describe the LOAD command format (in hex)? Something like "00 01 xx" (like 00 01 83 is A.AUX) Then I could check this out greetz, Gunther
    Posted to General Discussion & Questions (Forum) by hemenex on Thu, Aug 8 2019
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