audioguru Posted December 25, 2006 Report Share Posted December 25, 2006 Hi Arman,Did you substitute any parts?The circuit is easy to fix if you list voltage measurements and have it turned on without a load and with the voltage and current pots turned up to max.Connect the negative wire of a DC voltmeter to the negative wire of C1. Measure the voltages:1) The positive wire of C1.2) Pin 4 of U3. (It should be a negative voltage)3) Pin 6 of U3.4) Pin 4 of U1.5) Pin 6 of U1.6) Pin 3 of U2.7) Pin 6 of U2. Quote Link to comment Share on other sites More sharing options...
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