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   comp.sys.cbm      Discussion about Commodore micros      53,866 messages   

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   Message 53,454 of 53,866   
   Kenzo to Robert Roland   
   Re: Advice on the best drive emulator?   
   08 May 22 14:48:11   
   
   From: kjambrose@gmail.com   
      
   On Sunday, May 8, 2022 at 2:03:31 PM UTC-7, Robert Roland wrote:   
   > On Sun, 8 May 2022 06:35:53 -0700 (PDT), Kenzo     
   > wrote:    
   >    
   > >it won't power up    
   >    
   > It is likely that the power supply has failed.    
   >    
   > The 1571 has a very simple linear power supply. It should be easy to    
   > fix.    
   >    
   > There is even a fuse, winch needs checking.    
   >    
   > Also, the solder joints for the transformer can crack. The transformer    
   > is heavy, and there is nothing other than the solder joints holding    
   > it.    
   >    
   > Be careful with mains voltage, though.    
   > --    
   > RoRo   
   Thanks, I ordered a zoomfloppy today.   
   Regarding the 1571 I should just replace the linear power supply with an   
   SMPS.  If the fuse is blown there must have been a reason. There is a meanwell   
   that is a good match.  And there are 4 electrolytics on the logic board that   
   should also be replaced.     
   If I later find the heads are bad, I can use the SMPS for a different   
   project...   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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