Sign in   |  Join   |  Help

Search

  • Re: Another BM1900

    It has been quiet here on the BM 1900 front: I had left my home for quite some time to avoid the stress of being “lockeddown” at home, My wife and I moved temporarely to a cottage (B&B) somewhere in my country wihere there is a less dense population, minor risk to pickup a covib-19 contamination, nor conditions to take my workbench with me. I’ll be back later Aad
    Posted to The Workbench (Forum) by Aad Jansse on Tue, Apr 28 2020
  • Re: Another BM1900

    I can use a headphone instead of speakers
    Posted to The Workbench (Forum) by Aad Jansse on Fri, Apr 10 2020
  • Re: Another BM1900

    "The Never ending story": these are my speakers. The caps, the original ones, measures are 07C 5052 uF ESR .15 Ω 0C8 4891 uF " .12 Ω C92 2294 uF " .11 Ω
    Posted to The Workbench (Forum) by Aad Jansse on Fri, Apr 10 2020
  • Re: Another BM1900

    "The Never ending story": these are my speakers. The caps, the original ones, measures are 07C 5052 uF ESR .15 Ω 0C8 4891 uF " .12 Ω C92 2294 uF " .11 Ω
    Posted to The Workbench (Forum) by Aad Jansse on Fri, Apr 10 2020
  • Re: Another BM1900

    Pardon me my poor english: the right description of the unwanted sound when the relay clicks is not a hum ( +/- a constant level); therefore I used the word “bang”, sort of popping sound. Aad
    Posted to The Workbench (Forum) by Aad Jansse on Fri, Apr 10 2020
  • Re: Another BM1900

    Taking the 2 caps out and soldering them back I watched carefully the polarity: the familiar hum or bangconfirmed that the polarity was as usual as before, despite the state of the bridge rectifier that I removed from the pcb, tested, found it 100% and soldered back. i also found 2 lamps burnt on the source selection indicator, replaced them and continued searching. Before I power on the scope I can also tell that the problem differs depending on which speaker outlet is selected: speakers 1 with
    Posted to The Workbench (Forum) by Aad Jansse on Fri, Apr 10 2020
  • Re: Another BM1900

    How can I "free" these capsin order to replace them? Aad
    Posted to The Workbench (Forum) by Aad Jansse on Tue, Apr 7 2020
  • Re: Another BM1900

    I tested this one, see 2nd picture
    Posted to The Workbench (Forum) by Aad Jansse on Tue, Apr 7 2020
  • Re: Another BM1900

    OK I will further investigate it, taking your remarks into consideration and keeping you posted. Aad
    Posted to The Workbench (Forum) by Aad Jansse on Tue, Apr 7 2020
  • Re: Another BM1900

    first of all: sorry for the "page two"confusion. Secondly, I understand now that I did not "start with the easiest one" when trying to locate the problem: I found out that the 2D50 bridge rectifier supplies +/- 24 V to the fault switch. If this causes the trouble I would like to ask Martin for an email for supplying me a B40C1500 replacement. Aad
    Posted to The Workbench (Forum) by Aad Jansse on Mon, Apr 6 2020
Page 1 of 21 (203 items) 1 2 3 4 5 Next > ... Last ยป | More Search Options
Beoworld Security Certificate

SSL