[solved] A500 does not boot

[Colani1200]

Well, it looks like after many years, the mainboard of my very first A500 reappeared in my parents basement. 8-) I tried it out, but unfortunately it refuses to boot. The disk drive spins up, the start logo disappears for a second, but then it stops and the start logo is there again. The behavior is like when you insert a disk that is not bootable. I tried 2 different floppy drives that are known to work, already exchanged both CIAs, but no luck. Anything else I could check / exchange?

[ChuckT]

Could the drive be out of alignment?

[Colani1200]

No, both drives work properly in another Amiga. I justed exchanged Paula aswell, but still no difference.

[CLS2086]

Hi,
I repared an old friend that got a similar problem.
It was due to oxydation of the chips !
Use a teebrush, spray contact cleaner, and use them on every chips and theirs sockets !!
I can do it for you, but you'll have to send it ....

[Colani1200]

OMG this is stupid. How likely is it that all disks that you picked for testing are corrupted?? Anyway, the old lady works again, wohoo!!  :-D