Author Topic: MY-64 Digital Multimeter fault  (Read 2483 times)

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Offline g8bnrTopic starter

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MY-64 Digital Multimeter fault
« on: May 05, 2015, 08:13:04 am »
My MY-64 doesn't zero. It reads around 2.3 on all ranges. I suspect that the ICL7106 has been damaged, it is not a packaged chip but is a plastic blob on the board.

Am I correct in my analysis, if so, is there anything that can be done? Or is it a bin job?

Dick G8BNR
 

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Re: MY-64 Digital Multimeter fault
« Reply #1 on: May 05, 2015, 08:24:55 am »
Are there pads for the IC in package? If yes, you could just remove that blob and solder packaged IC.
 

Offline g8bnrTopic starter

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Re: MY-64 Digital Multimeter fault
« Reply #2 on: May 05, 2015, 04:59:21 pm »
The answer is, sadly, no, unless the IC package is about 0.5" square!! The only ICL 7106 chip that I have seen is a large DIL package!

Dick G8BNR
 

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Re: MY-64 Digital Multimeter fault
« Reply #3 on: May 05, 2015, 05:01:51 pm »
The answer is, sadly, no, unless the IC package is about 0.5" square!! The only ICL 7106 chip that I have seen is a large DIL package!

Dick G8BNR
 

Offline retiredcaps

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Re: MY-64 Digital Multimeter fault
« Reply #4 on: May 06, 2015, 05:57:02 am »
My MY-64 doesn't zero. It reads around 2.3 on all ranges.
Do other functions like measuring a 9V battery work?
 


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