Fluke 5500A Multifunction Calibrator: Short Teardown

• Fluke 5500A Multifunction Calibrator: Short Teardown
  Posted by Echo88 on 21 Feb, 2018 18:04
• Today i had the chance to take a few photos of a defective Fluke 5500A which we have at work. I couldnt find the error and will reassemble it tomorrow, so it can be repaired by Fluke. So if there are any needs for more photos of a particular board say it now. Enjoy. 
  
  Outer case photos and manuals can be found here: https://doc.xdevs.com/doc/Fluke/5500A/ Also pictures of the Keyboard Assembly, which i didnt take photos of.
  
  Time limited repair attempt failed, but heres the repair-thread: https://www.eevblog.com/forum/repair/fluke-5500a-startup-error/
  
  

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• #1 Reply
  Posted by Echo88 on 21 Feb, 2018 18:06
• The reference on A6_2 shows the LTFLU-1ACH flying in the breeze, they didnt even bother to squeeze it in a heated enclosure. Of course its sufficient to this mediocre class of calibrators but it kinda hurts to see.

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• #2 Reply
  Posted by Echo88 on 21 Feb, 2018 18:13
• All in all it was interesting to disassemble it, but of course it doesnt come close to a Fluke 57XX Calibrator with all its shielding and TaN-Resistornetworks. 

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• #3 Reply
  Posted by TiN on 22 Feb, 2018 00:14
• Thank you for photos.
  
  LTFLU in these is very same REF as used in Fluke 8842A, even resistor is same .
  
  
• #4 Reply
  Posted by dl1640 on 23 Feb, 2018 00:48
• Looks A6 was repaired, residual flux on U45.