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   sci.electronics.repair      Fixing electronic equipment      124,925 messages   

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   Message 123,617 of 124,925   
   legg to All   
   Re: Chip ID   
   25 May 23 08:49:43   
   
   From: legg@nospam.magma.ca   
      
   On Mon, 22 May 2023 10:06:26 +0100, Cursitor Doom    
   wrote:   
      
   >On Sun, 21 May 2023 23:38:56 -0700 (PDT), whit3rd    
   >wrote:   
   >   
   >>On Sunday, May 21, 2023 at 11:33:23?PM UTC-7, whit3rd wrote:   
   >>> On Sunday, May 21, 2023 at 3:09:37?AM UTC-7, Cursitor Doom wrote:   
   >>> > Hi all,   
   >>> >   
   >>> > Anyone seen one of these before? The IC itself has four bjts on a   
   >>> > single die according to the schematic, but - again according to the   
   >>> > schematic - there's no connection for whatever this thing mounted on   
   >>> > top is, which resembles a very thin button cell   
   >>   
   >>Oh, the thing on top is the lid; it's grounded (to pin #13, which is to be   
   >>held non-positive with respect to other connections, it's the IC substrate).   
   >   
   >So it's possible to pop it off? Wow. Never come across one of those   
   >before. Be interesting to take a look inside....   
      
   Also might be interesting to buy a CA3045 and fix the damn thing.   
      
   Are you even sure it's failed?   
      
   RL   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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