1 Jun
2007
1 Jun
'07
2:02 p.m.
On 1 Jun 2007 at 14:51, Jules Richardson wrote:
Surely it's as much effort whether circuits repeat
or not? Don't you still
have to check all possible interconnects to make sure that you've got
everything traced right, even if a quick visual inspection might make it
appear that there's a lot of repetition?
So, you're saying that it's easier deciphering a PCB with a couple of
544-conductor house-numbered BGAs on it than working through a PCB
with 1000 discretes?
I know how a transistor (resistor, capacitor, inductor) works, but I
lack the psychic abilities to figure out what a house-labeled (or
better, unlabeled) QFP, BGA or even a large DIP does, particularly if
the maker's gone out of business. I have a ghost of a chance of
figuring out (and repairing) the discrete board, even if the
transistors are house-numbered. But I'm out of luck and skills
working out a board filled with custom ICs with no data.
Cheers,
Chuck