Author Topic: Fluke 123 scopemeter Repair  (Read 687 times)

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Offline Raymond

  • Newbie
  • Posts: 1
Fluke 123 scopemeter Repair
« on: June 02, 2017, 04:59:03 am »
Hello there..
I have a scopemeter 123 who is acting not okey.

Wen i select continuous mode it start to buzz wen i put the probe a + com togehter it stops chiming it does not measuring cap mode and ohms.

Wen i put the test leads in the wall from channel a and the com port i get the right readings 227v and showing a 50hz trace. Besides that nothing seems to work. Either i do not hear the clicking of the relays path ways

I dont know what the do with this little boy but they seems to blew it good..

Things i did check.
Thermal protection ptc's
The protection circuit. The diodes and the fusable resistors


The reference circuit its showing the right value.
From the service manuals.
I hope there is some with a kind of this experiences who can give a tip where to look for i really lost in this tiny parts who calls (smd) :-DD

Thank you so much for your time
Take care
Raymond
From Holland




 


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