I have a question for an issue I am experiencing. I live in the US and purchased a European Atari 65XE (PAL version) from eBay.
The Atari 65XE power supply provides DC. However, the XF551 power supply provides AC.
When I use an American Atari 130XE (NTSC version) with the XF551, the drive boots perfectly. However, when I use the European Atari 65XE (PAL) with the XF551, the same disk drive boots and is interrupted and I occasionally get a few "BOOT ERROR" messages before it finally makes it to the READY prompt. Also, when I attempt to LOAD a binary file from the diskette (using DOS 2.5 option Load Binary File), I get error Error- 138.
Further to the issue, when I use Lotharek's SIO2SD device on either Atari 65XE (PAL) or Atari 130XE (NTSC), the ATR images boot perfectly fine with no issues (clearly no mechanical movement here).
The SIO port has a CLOCK IN and CLOCK OUT pin, but I really do not know if this is relevant (i.e., could the clock be unsynchronized and that causes the error in communication).
With this narrative, I am inclined to believe the Atari 65XE has no problems in the SIO port, and that it is a frequency issue. However, I am not certain.
What do you think?