Start with checking power supply voltages.
Yellow - The CPU encountered an error before the system's error-trapping code (the code the calls up the Guru) was in place.
checked polarity is right on all caps?
swap the cpu maybe if you have a spare but i doubt that is it.
http://www.amicue.org/TechStuff/amigaboot.html this might be useful.
Hi all,
I wonder if you can help.
I have an Amiga 1000 RevA board. When I switch it on there is the usual 4 flashes from the power LED, then a few seconds delay until I hear the 'boot beeps', the second the sound stops the screen goes orange/yellow and that's where she will sit. No life from the floppy drive, no flashing power LED, nothing on the screen other than a blank orange/yellow page. It will do this with or without the floppy drive, keyboard or mouse connected.
I have removed and re seated all the chips, everything looked fine, the board is very clean with no signs of damage. I also recapped the entire board.
None of what I have tried so far has made a difference, still the same behaviour.
Any suggestions guys?
Faulty chip? Power supply failing maybe? ( I have yet to recap the PSU )
What's your thoughts?
Thanks.
