Production / Test Engineer working with semiconductor manufacturing equipment. Mainly using Production, Test (Electrical + Mechanical) and Computer skills.
"99% of faults are connection issues"
Is it Plugged In, Turned on and the Screws done up?
Are the leads broken? Is there a connection? Is it a good connection?
Is the communications interface compatible?
Has the Software ever worked!?
Did you change ANYTHING? (and yes, messing with the SPI read write minimum waits counts )
Are the UART parameters set?
Have all the pins been defined?
Is the pin numbering the same on this connector as that connector?
If the fuse keeps blowing, You have a problem...
PCB's are not supposed to be expensive fuses, You have a problem ...
When you flick the switch and hear a bang, You have a problem...
The smell of hot plastic means, You have a problem.