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   alt.engineering.electrical      Electrical engineering discussion forum      2,547 messages   

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   Message 1,860 of 2,547   
   Tzortzakakis Dimitrios to All   
   Microwave oven woes...   
   07 Apr 17 17:53:06   
   
   From: noone@nospam.com   
      
   A client left a faulty microwave oven at my friend's shop, I opened it   
   up and first thing I checked was, of course the HV fuse. It was open so   
   a new one. Nothing. Checked with my HV probe, at the transformator   
   secondary 3.5 kV(AC). At the magnetron nothing, no DC at all. Thought it   
   was the HV capacitor or the HV diode.Took them home, measured the   
   capacitor with my capacitance meter, 1 μF ok. Checked with my insulation   
   tester that can put up to 1000 volts, the diode, forward bias 0 Ω,   
   reverse bias >10 ΜΩ ok.Of course I didn't do anything as when you repair   
   household appliances you must be absolutely sure you'll repair it,   
   there's no room for experiments.Anyone with a brainwave? Again, the   
   trafo AC ok, DC nothing-something wrong with the magnetron?   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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