Directly Replace IC Or Using OscilloScope To Test Out First?
Every electronic repairer have their own way or procedure in troubleshooting electronic problem. I’m not sure which one would you use first i.e directly replace the IC or getting an Oscilloscope to test out the signal first? Actually for me it depends on the situation, if i have stock for the IC i will directly replace the IC and retest the set and if it still don’t work i will just keep that IC for future use. If it work then it will be good. Although i could use an oscilloscope to test out the signal first, as mention above it is your preference as some repair tech would test out the signal first before replacing with a new IC.
I would only use scope if i do not have the IC in my spare parts compartment. I will have to refer to the IC schematic and make sure the IC is indeed bad before ordering a new IC. Which method do you use and why?