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I have a cambridge audio A300 V2.0 amplifier that wont power up. i've checked for power at the switch and there is power and i've checked on the main board at the fuses but there is no power there, the fuses are ok so i've narrowed it down to a possible faulty transformer. how likely is this? any ideas would be gratefully received.

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  • Seamus377 Jan 08, 2009

    as regards to the above, i have now sold the amp as faulty on ebay. thanks very much for the help though, much appreciated.

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Hi there get a multimeter place across mains input on transformer,FIRSTLY DISCONNECT AMP FROM MAINS,set your meter to contiuity ,if good you should get a low ohms reading (resistance),then check the secondaries (output of transformer) either 3 wires or four going into amp board..if readings acroos all wires are low ohms then transformer is good if one is open ,transformer has had it ...hope this helps

Posted on Jan 08, 2009

  • steve hall Jan 08, 2009

    If i remember rightly is this the cambridge with the gainclone chip on heatsink if so i would suspect this as faulty,as the transformer is bound to with stand more abuse,unless you had a thunder storm...

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