Author Topic: Rigol DM3068 repair question  (Read 584 times)

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Offline JLM

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Rigol DM3068 repair question
« on: June 06, 2018, 02:42:23 pm »
 I am trying to repair a desktop multi meter that fails on virtually every self test. One of the voltage regulators, L7915CV, seems to be really hot and makes a smell. I removed it from the circuit and tested. The output is -17.02 V (input -25v). Is this within spec, or can the 2 volt different account for my problems? Note that the unit powered on and got the same test results even with the voltage regulator not on the board.
"To err is human, to blame it on someone else even more human"

Offline wraper

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Re: Rigol DM3068 repair question
« Reply #1 on: June 06, 2018, 03:07:06 pm »
No way 17V is within spec.

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