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How to check IC on the PCB working?
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Jan 13.2020, 18:07:58
Hello,
How can I check that some ICs on PCB works properly or not? Can I turn off the power supply and then by giving necessary inputs and checking outputs? My PCB contains ARM Processor and few Op-amp ICs. I need to check Op-amp IC. I do not have any other testing equipments. Well, PCB has few ICs ( Op-amps, Driver, Voltage regulators etc). Now I want to check the IC is in working condition or not.
Problem: IC is already connected to other ICs on the board. If I will give some INPUT to IC and then check OUTPUT of the IC, can I check this way? ( What if current would flow from this IC to the other part of the PCB ?! 
)
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