Having trouble chasing this problem down: A4000 with previous battery damage (lots of traces repaired and damaged mitigated). Got it at least back to a serviceable condition from the dead. Long term plan is to relocate the parts to the Acill A4000 re-spin as I am sure there's hidden dangers lurking from the battery damage. Its also been recapped, although missing banks 1-4 due to damage. I don't see a point in ordering simm sockets until I am ready to transplant to the re-spin.
Problem seems to be in the joystick port lines. All axis work, but when the joystick is held in the up position, the up registers-a half second later, all 4 axis on both joy and mouse register as full on. This has been verified using multiple DB9 joysticks. See the video below.
https://youtu.be/_g7utehhPewAll traces (checked with
http://www.amigapcb.org) buzz out properly. No apparent shorts.
Has anyone experienced this before and solved it?
Thanks for any insight.