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ARCHIVED FORUM -- April 2007 to March 2012
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This is the first Archived Forum which was active between 17th April 2007 and 1st March February 2012

 

Latest post 01-02-2010 1:55 AM by strangeadam. 4 replies.
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  • 01-01-2010 1:26 PM

    beomaster 2400-2 no start

    i have a 2400-2 that does not start. the led is on and the power is working. I replaced the c92 cap and adjusted the15volt supply but no answer

    I have the solder , the screwdriver and passion

    Any help wellkome 

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  • 01-01-2010 4:36 PM In reply to

    • Dillen
    • Top 10 Contributor
    • Joined on 02-14-2007
    • Copenhagen / Denmark
    • Posts 5,008
    • Founder

    Re: beomaster 2400-2 no start

    Welcome to Beoworld !

    Is there no reaction at all when you touch a source pad ?
    - No click ?
    - No flashing lamps ?

    Martin

  • 01-01-2010 5:45 PM In reply to

    Re: beomaster 2400-2 no start

    when i try to start the ic responds with a change in voltage but it doesnt seem to hold.

    If i sortsircuit the relay and touch the pins is flashing the diferent bulbs but there is no signal to amplifier from radio and when i remove my hand the bulbs go off. In this condition the amplifier produces a noise when i put a finger on the transistor.

    thanks anastasio

  • 01-01-2010 7:15 PM In reply to

    • Dillen
    • Top 10 Contributor
    • Joined on 02-14-2007
    • Copenhagen / Denmark
    • Posts 5,008
    • Founder

    Re: beomaster 2400-2 no start

    There can be many reasons for this behavior.
    Aging capacitors and wrong wattage lamps to name a few. Kits are available for both
    but in your case I think, I would check the functionality of the electronic switch and especially
    the little IC9.
    Check also for cracked solder joints at the large output stage transistors.

    Martin

  • 01-02-2010 1:55 AM In reply to

    Re: beomaster 2400-2 no start

    Martin  the 3 bulbs on bass treble and balanse were dead plus 1 on volume.

    what if i take some bulbs from fm fm1 2 3 ?Which ones are important?

    Output is ok, no solder problem. I am going to check the ic later

    anastasio 

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