Author Topic: luke 73 III dc voltage range issues.  (Read 359 times)

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Offline ddwilson

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luke 73 III dc voltage range issues.
« on: March 03, 2019, 03:00:17 am »
The meter works fine except on DC voltage up to about 3v works fine, above that will not read. Like the auto range does not work. Any suggestions where to start?
 

Offline retiredcaps

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Re: luke 73 III dc voltage range issues.
« Reply #1 on: March 03, 2019, 04:50:15 am »
Service manual at

http://oldradio.tesla.hu/rajzok/muszerek/fluke77multimeter.pdf

suggests U1 or S1 bad.  I would check the switch for dirt/debris/damage, etc.
 

Offline ddwilson

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  • Country: us
Re: luke 73 III dc voltage range issues.
« Reply #2 on: March 04, 2019, 03:08:50 am »
thanks, will take another look at the switch
 


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