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Help me to repair my Creative Speaker 2.1

Discussion in 'Repairing Electronics' started by babupremkumar71, Sep 23, 2011.

  1. babupremkumar71

    babupremkumar71 New Member

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    My CREATIVE 2.1(i dont know the model name exactly i think Creative 2.1-SB 250) speaker is suddenly stopped working, My two speakers are working fine but my sub woofer is not working,, please suggest a way to repair... My warranty period was over lastyear itself...:confused::confused:

    Please guys help me...
     
  2. audioguru

    audioguru Well-Known Member Most Helpful Member

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    Creative Is a Chinese company so their speakers use Chinese parts. The woofer's amplifier has failed or the woofer speaker has burned out.
    You might not be able to buy the schematic, parts list or parts for it.
     
  3. babupremkumar71

    babupremkumar71 New Member

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    I opened the woofer

    i opened the woofer, in that they covered the circuit board by a kind of wax or plastic,
    so can't i remove the wax and check the components?
    :confused:
     
  4. dave

    Dave New Member

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  5. alec_t

    alec_t Well-Known Member Most Helpful Member

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    Yes you can.
     
  6. babupremkumar71

    babupremkumar71 New Member

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    How to remove it?
    do u have any experience like this?
     
  7. ericgibbs

    ericgibbs Well-Known Member Most Helpful Member

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    I would measure the Woofer speech coil before stripping down the PCB,, as suggested by 'agu' in post #2, it could be burnt out.
     
  8. babupremkumar71

    babupremkumar71 New Member

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    And i forgot to say that there is no supply of power for the Volume controller too..
    i attached some shots of that wax covered board..

    Help me to remove this wax kind substance pls..
     

    Attached Files:

  9. 4pyros

    4pyros Well-Known Member Most Helpful Member

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    Thats not wax its hot glue, it just pulls off. It looks like the fuse may be blown have you cheaked it? Did you cheak the speaker?
     
  10. 4pyros

    4pyros Well-Known Member Most Helpful Member

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    Its right on the plate amp of the sub, SBS 2.1 350.
    Only worth $20 new. Like everything else from China its disposable.
    Not even worth the bandwidth posting.
     
  11. babupremkumar71

    babupremkumar71 New Member

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    :(
    :(

    Thanks for ur reply, Gonna buy new one soon....
     
  12. usbdevice

    usbdevice New Member

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    you can dismantle the woofer by pulling / destroying the front fascia. creative's subwoofer-to-amp cable are pretty short. as 4pyros mentioned, they are probably worth 20 bucks so you might want to just buy a new one.
     
  13. Ziddik

    Ziddik Member

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    i would rather fix that than buying a new one.. If he has some basic skills in electronics then he can also fix it..
     
  14. Tann-44

    Tann-44 New Member

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    best plan...china stuff is so cheap these days..best of luck.
     
  15. audioguru

    audioguru Well-Known Member Most Helpful Member

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    I recently bought a 2.1 powered speaker system (two satellite speakers plus a sub-woofer) for only $25.00 on sale at a local store. It is rated at 150 Whats but I think it is really only 5.5 Watts to 7 Watts output. It can be very loud (1 meter away from me) and sounds great. It plays from 40Hz to 18kHz to my old ears.
    I laughed at its tiny Chinese amplifier and power transformer when I looked inside. If it lasts a few months then I will be happy.
     
  16. Mohit Thakur

    Mohit Thakur New Member

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    ok same problem, creative speaker model mf1580, the power supply seems to be working but no audio
     
  17. alec_t

    alec_t Well-Known Member Most Helpful Member

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    You have hijacked/resurrected an ancient thread. Better to start your own.
     
  18. audioguru

    audioguru Well-Known Member Most Helpful Member

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    The 2.1 speaker system that I bought 2 years ago has an intermittent woofer.
    Inside it has many connectors glued together that I might break apart then solder each wire.
    The woofer is unusual because on the outside it has a 4.5" cone with a rubber surround. BUT it has no coil or magnet. It is a droan cone!
    The actual woofer is hidden inside and is only 2.5" in diameter and has a huge magnet. Maybe its flexy wires are intermittent but I couldn't reach them.
    When it worked this unusual woofer played fairly deep and loud bass.
     
  19. dheeru kiran

    dheeru kiran New Member

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    I have a creative speakers model no MF1580 and it has 230v to 8v 250 mA transformer and I tested the transformer ,its not working so I'm not getting same rated transformer can I use 9v 250mA instead.
     
  20. audioguru

    audioguru Well-Known Member Most Helpful Member

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    I fixed my intermittent woofer by re-soldering every solder joint on the amplifier pcb.

    When your amplifier is powered from a higher voltage then its maximum current is also higher. If you do not play it at full blast all the time then the 9V "transformer" will be fine. See if it does not get hot.
    A transformer has an AC output. A power supply usually has a DC output. Does the system need AC or DC?

    If the power supply produced 8VDC at 250mA then the speakers get only about 1W maximum (each stereo speaker gets 0.5W) and about 1W heats the amplifier. Maybe the stereo speakers each get 0.25W and the woofer gets 0.5W.
     
  21. dheeru kiran

    dheeru kiran New Member

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    Its a 8vAC transformer which I have to replace by 9vac ,thank u for ur relay.
     

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