Because Of My Careless?

Discussion in 'General Electronics Chat' started by moorejohn90, Jun 29, 2013.

  1. moorejohn90

    Thread Starter Member

    Dec 9, 2011
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    0
    Hi, I was carelessly plug the power cord of my KENWOOD(110V) into 220V supply. After a few seconds, I find out :eek: I forgot to plug KENWOOD's cord to 110 transformer. But it was late, my KENWOOD doesn't work anymore. How do I fix it. Which part of KENWOOD are destroyed? Any advice.:confused:
     
  2. tracecom

    AAC Fanatic!

    Apr 16, 2010
    3,869
    1,393
    Your Kenwood what? Radio?

    Maybe, if you are lucky only a fuse is blown. Did you see smoke or smell anything. Do you see anything melted?

    More information will get better answers.
     
  3. moorejohn90

    Thread Starter Member

    Dec 9, 2011
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    0
    No, It is Cassatt that can play CD, tape and MD. No I didn't get any smell. And I haven't open it up? Any advice. Thanks
     
  4. tshuck

    Well-Known Member

    Oct 18, 2012
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    If you are hoping to fix it yourself, you will need to open it up...:rolleyes:

    Give a model number and pictures of the insides...
     
  5. moorejohn90

    Thread Starter Member

    Dec 9, 2011
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    Model No is RXD-SE5MD(S)
     
  6. mbohuntr

    Active Member

    Apr 6, 2009
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  7. tshuck

    Well-Known Member

    Oct 18, 2012
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    If your power supply is like the one shown here, I would look at your caps, diodes, and, possibly, the regulators... and verify the power amp output...

    EDIT: Looks like mbohuntr beat me to it! :)
     
  8. moorejohn90

    Thread Starter Member

    Dec 9, 2011
    57
    0
    Checking, for a minute
     
  9. moorejohn90

    Thread Starter Member

    Dec 9, 2011
    57
    0
    It look like the same. And What I found out is the fuse is turning black. Is it the symbol of blow out? Any advice?
     
  10. #12

    Expert

    Nov 30, 2010
    16,248
    6,745
    A fuse that changed color is usually bad, and you're really lucky if that's all that went wrong!
     
  11. bountyhunter

    Well-Known Member

    Sep 7, 2009
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    Very unlikely the fuse is the only thing gone. Blowing the fuse meant high current flowed through it and that current had to go somewhere.

    The diagram doesn't even show in input line fuse.
     
  12. THE_RB

    AAC Fanatic!

    Feb 11, 2008
    5,435
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    It will have blown the primary of the mains transformer, which then took out the fuse. So a new power transformer will be needed.

    There may be something blown after the secondary of the power transformer, but not always.
     
  13. Relayer

    New Member

    Jan 1, 2013
    18
    1
    You're going to need the aid of a digital multimeter. If you don't have one, then get one. Without it you're searching in the dark.
    Regards,
    Relayer :D:D:D
     
  14. blueroomelectronics

    AAC Fanatic!

    Jul 22, 2007
    1,758
    98
    Even with a multimeter, without knowing what the part was or a schematic or service manual plus some electronics skills the OP is probably better off going to a repair shop.
     
  15. JohnInTX

    Moderator

    Jun 26, 2012
    2,339
    1,022
    That's happened to me as well (electrician picked up the wrong bus..) New power xfmr fixed it. (Bogen PA system).
     
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