• RE: 240hz hum through left channel - vkung 19:21:42 09/05/16 (5)
  In Reply to: RE: 240hz hum through left channel posted by LKP48 on September 05, 2016 at 19:16:00

  YOU DON'T NEED TO REPLACE THE DIODE.
  

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  • RE: 240hz hum through left channel - LKP48 20:34:02 09/06/16 (4)
    In Reply to: RE: 240hz hum through left channel posted by vkung on September 05, 2016 at 19:21:42

    I have replaced Q3 (did not replace diode)
    Still getting hum occuring on left channel.
    
    Also re-soldered every connection. Should i Also replace Q5?
    
    

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    • RE: 240hz hum through left channel - vkung 23:29:41 09/06/16 (3)
      In Reply to: RE: 240hz hum through left channel posted by LKP48 on September 06, 2016 at 20:34:02

      CHECK THE VOLTAGE AS PERV Page 19
      

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      • RE: 240hz hum through left channel - LKP48 07:33:37 09/07/16 (2)
        In Reply to: RE: 240hz hum through left channel posted by vkung on September 06, 2016 at 23:29:41

        All points voltage checks ok
        
        Any other tips?
        

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        • RE: 240hz hum through left channel - vkung 09:48:54 09/07/16 (1)
          In Reply to: RE: 240hz hum through left channel posted by LKP48 on September 07, 2016 at 07:33:37

          where you bought your kit?
          99% is the soldering issue..
          

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          • RE: 240hz hum through left channel - LKP48 03:07:02 09/08/16 (0)
            In Reply to: RE: 240hz hum through left channel posted by vkung on September 07, 2016 at 09:48:54

            Dear Sirs,
            
            I removed all components related to power filter, added new FET for Q3 / Q5, and resoldered everything. HUM is solved.
            
            Thank-you for your help.
            

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