Faulty DVM

**barry wilkins** · 09-27-2020, 03:17 PM

One of my DVMs has gone faulty .
I know why this has happened I was repairing some SMPUs ,they do have some high voltages on the 130volts and 425 volts .It has a range of 1000 volts this is why I was using this DVM .
The high voltage has dammaged something ,it has gone noisey ( 2/3 didgits) but still seems to read .Exept it will not read diodes anymore
If anyone could advise me about any thing I could replace .
It has got a dual opamp on the board

thank

Barry Wilkins

09-27-2020, 03:17 PM	#1
barry wilkins Senior Member Join Date: Aug 2009 City & State: Maidstone Kent Posts: 152	Faulty DVM One of my DVMs has gone faulty . I know why this has happened I was repairing some SMPUs ,they do have some high voltages on the 130volts and 425 volts .It has a range of 1000 volts this is why I was using this DVM . The high voltage has dammaged something ,it has gone noisey ( 2/3 didgits) but still seems to read .Exept it will not read diodes anymore If anyone could advise me about any thing I could replace . It has got a dual opamp on the board thank Barry Wilkins

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