13 Aug
2000
13 Aug
'00
2:45 p.m.
Richard Erlacher wrote:
What reminds me of the experience I had is the dead short you reported
between -12 and ground. A tantalum cap will make it look like that, and,
once some current runs through them you find out it's not really a short,
since they get hot and catch fire. Once they do that, of course, it opens
the short and you can readily see what's up. I don't recommend putting on a
higher current supply to do this, however, since traces may go before the
cap.
Dick
Well here are the 'current' standings (sorry I couldn't 'resist' ;-).
The +/-12v is now working, seems that 1 28F020 and 1 tant cap needed to
be sacrified to the electronic gods (I'm still not sure of the Flash
circuitry). I can receive from the Terminal server. I get it's output
message and it's startup. It passes the internal and external loopback
(I'm not totally sure I know what that means). It passes the serial
local loopback tests and attempts to remote boot. At this point it fails
to do anything which could mean it's not setup correctly or the ethernet
is the source of the problems. I still have to get it to accept commands
from the PC/Terminal. That's next!
Thanks
--
Linux Home Automation Neil Cherry ncherry(a)home.net
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