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DBX 100 Boombox

Hi,

I have a DBX 100 boom box that has had a burn up on mains input stages, mains transformer primary is open circuit, it was switched to 110 volt operation and someone plugged into 250 volt mains in the UK without looking to adjust the input switch, there appears to be no other damage except 1 resistor burnt out, we don't know the value, so a service manual or schenatic diagram and layout is required to go any further with this repair.
Hope you can suggest an answer, many thanks.
Jim Bartlett.
email; jimbartlett@btconnect.com

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The resistor may be a dropping resistor prior to a zener diode.
I'd be reluctant to try the fuse idea someone else suggested.

I also have a dbx 100 with a burnt out resistor. Can't seem to find a schematic to know what value to put back.

davidcrocombe@ozemail.com.au

Posted on Jul 15, 2009

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DBX boom box burnt out risistor need advise please
I have the same problem has anyone able to help


regards
David
davidrewg@gmail.com

Posted on Aug 21, 2012

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  • Rodolf Kaado
    Rodolf Kaado Jan 11, 2013

    I used 5.6 ohms 1 watt. it works very well .

  • davidrewg
    davidrewg Jan 12, 2013

    Hi Rodold Thank you very much, was there any other parts that you needed to replace cheers?

  • davidrewg
    davidrewg Jan 12, 2013

    sorry - Rodolf not Rodold :"~

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I don't recommend this, but the resistor you speak of is probably a small fuse. Try jumping out the fuse, then turn on unit for brief moment. If it powers up, fine. Replace jumper wire with 1 amp fuse. If not, take to prof. tech.

Posted on Apr 17, 2008

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