日本語
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 ?! 
)
- Comments(1)
A****min
Jan 15.2020, 10:35:06
You could try the "razor blade" technique on individual IC's.
Slice signal path tracks (in & out), provide test signal and measure output.
Solder over slice when the problem is fixed.
