I tested my 2.5Mb STF a few weeks ago and the reset button is not working. The spring is OK and the button returns to its normal position but it doesn't cause a reset. I haven't opened the machine recently but was wondering if anyone has seen this problem before or what the solution could be.
Still got, still working: Atari 4Mb STe, 520STFM, 2.5Mb STF.
Hardware: Cumana CSA 354, Ultimate Ripper, Blitz Turbo, Synchro Express II (US and UK Versions).