you must work on different gear
in domestic electronics it is VERY common, 60 - 75% would be a fair percentage
and they fail quite happily on their own WITHOUT any prompting from any of your 3 reasons
replace the caps and it works again immediately without any other component replacements
Dave
No,not at all!
I was answering this question(reply #11), about controller or a processor chip:
"How often do you do the obvious repairs only to find that a controller or processor chips is toast?",Not the cap issue.
I'll post it again for clarity:
It is quite rare.
In cases it does happen it is very likely that the all board is toasted.
That mostly happens because of :
1.Mains power surge.
2.Power supply failure,such that creates a VCC above ICs max absolute value.
3.Lightning.
Last edited: