28 Mar
2002
28 Mar
'02
1:16 p.m.
--- "Carlini, Antonio" <Antonio.Carlini(a)riverstonenet.com> wrote:
To verify (for sure) you should have
the yellow LED off (self-test failed)
and the red LEDs below that
reading OFF, ON, OFF, OFF, OFF, OFF, ON
(which is 21 in BCD - no, I don't know why!)
What doesn't make sense? Why it's seven lights for two BCD digits
or why that pattern equals 21? (010 0001) I would guess that there
aren't any codes higher than 79, so why install the highest bit.
-ethan
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