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Posted on Sep 19, 2011
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Hi, I purchased a pair of MSP7 studio monitors from USA and plugged them in UK without step down transformer. The green light was ON for about 2 seconds and then it was OFF. Then I bought a transformer and tired to connect again, however the green light does not go ON anymore. Are these burned now and is it possible to repair them? Thanks, Alex

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  • al_naydenov Sep 19, 2011

    I managed to open it. It looks like the power supply is 250V - model SKP0228-1678. It has 2 fuses, but both look ok. I wonder if Yamaha actually always make it with 220-240 V power supply but explicitly convert it for USA to 110-120 V?

  • al_naydenov Sep 19, 2011

    Thanks Jee, found another fuse which is on the board connected to the power switch. This one is blown. I'll go to local technician tomorrow and she should be able to replace it. Thanks for your help!

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  • Master 10,594 Answers
  • Posted on Sep 19, 2011
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Power supply built in speaker box seems damaged and possibly a fuse or transformer got blown, local technician will check it by opening lower rear panel of speaker box and will replace blown part.
Hope these info will help.

  • Anonymous Sep 19, 2011

    If power rating info (written on sticker) shows speaker has ability to work on 110V AC to 240V AC then it should work in US and UK without any problem and if shows specifically 110V AC then its internal parts would be installed only to work on 110V AC

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