4 Jun
2002
4 Jun
'02
6:45 a.m.
--- Jeff Hellige <jhellige(a)earthlink.net> wrote:
Right.
When powering
on, the power LED flashes 10 times then a long flash, and
repeats. Nothing else plugged in, no floppy, keybaord, mouse or cards.
Anyone remember what that means???
Different hardware combinations and problems will cause the
LED to flash differently. I'm not aware of any reference outlining the POWER
LED flashing.
http://wuarchive.wustl.edu/pub/aminet/hard/hack/Amigafix.txt
I've seen the flashing LED before - I had an A2000 board that
was stripped (Zorro sockets, DRAM, etc.) by the local dealer
after it was brought in by a customer who said it was hit by
lightning. I threw it on $25K of diagnostic equipment we used
to build/repair COMBOARDs and went to town. Tracing bus cycles
through the ROM code, it failed a RAM test (yes, I put the RAM
back first ;-) Turns out, the fault in this particular board
(after I ran wires to replace vaporized traces) was a TTL chip
next to the main Xtal. The *input* was pulling down the clock
enough to mess with Agnus. A new 7404 (or whatever it was) and
that problem went away.
A "Green Screen" is the classic Agnus symptom. Problems with
Agnus herself, CHIP RAM or anything that affects the clock
getting to Agnus could be causing the flashing LED error. I
do not know the criteria that differentiate a Green Screen
from an LED flash.
The caps lock LED tends to be used for
specific codes, as is the color shown on the screen at various boot
stages.
http://wuarchive.wustl.edu/pub/aminet/hard/misc/errormessages.txt
The caps lock LED is only for keyboard errors.
-ethan
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