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Nad 218 thx power amp keeps blowing ac plug fuse

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  • barnone1 Jun 05, 2008

    amp sounds out of phaze only on one chanel , or like a miss tunned radio station .

    disconected system and took a breif look but saw no phisical damage.

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Hi there. From memory they had bridge rectifier problems with them going short circuit. Check them first. Sometimes the toroidal transformer can go a shorted turn, in turn blowing primary fuses. try to soft start it whilst it is blowing fuses, Best bet is to make up a special lead that has a 60w light bulb wired in series with the mains power supply(or across the fuse holdwer that is blowing:). Limits the power in the circuit to ... well you guessed it 60 watts.

check em out and let me know.

regards
Graeme

Posted on Apr 27, 2008

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If any fuse blows of when you connect the power then you have to consult any nearest service station.


The Voltage rating and Amps rating of the fuse can find marked up on the two metal strips at the two ends. My be laser mark or punching.


Check the link bellow to see the fuses
Check the 12th picture on the link.
NAD M15


AJIN

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