Subj : Re: Calling X68000 fans
To   : Retroswim
From : paulie420
Date : Thu May 15 2025 21:50:09

 Re>  P> Awesome - pretty sure I'm subbed and will keep an eye peeled. :P
 Re> 
 Re> Last week I began the task of recapping, but also took the opportunity
 Re> to probe around with the ol' oscilloscope.
 Re> 
 Re> I've verified the CPU is good, the clock crystals all work, and the ROM
 Re> BIOS is working at least to an extent.
 Re> 
 Re> Something is halting activity, even though the CPU comes out of, and
 Re> remains out of reset. The 68000 itself has some other signals that can
 Re> cause this, related to how the CPU can release the bus to peripherals
 Re> (e.g. when you use accelerators in Amigas).
 Re> 
 Re> I was talking about it with some of the gurus at our local retro meetup
 Re> last night. He isn't familiar with X68000, but is very familiar with the
 Re> CPU from troubleshooting Amiga systems, and gave me some things to
 Re> explore next.
 Re> 
 Re> At present, all signs point to a busted logic chip, or a broken solder
 Re> joint or trace somewhere  Maybe a discrete transistor.
 Re> 
 Re> I'm hopeful! I'll be doing some Youtube uploads once I get further
 Re> along, and will definitely post updates on here!
 Re> 
 Re> Stay tuned! :D

Will be watching...



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