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Mike, I narrowed the issue down to improper syntax when changing to a directory or mounting a d64 image using the load syntax. If you don’t include $: in the load command for a directory then the machine will usually crash. Also attempting to mount a .d64 without including the .d64 extension in...

Sounds good, thanks Mike!

The IEEE passthru seems to be working. I get corrupted directory info if I mount a d64 inside a directory.

Mike, after flashing the new firmware I am able to mount d64 files and see their contents. I will try connecting the 8050 and let you know the result.

Dave_m, that’s why I’ve been using PETDisk v1 for the past several years.

“You are about to enter another dimension. A dimension not only of sight and sound but of mind. A journey into a wondrous land of imagination. Next stop—The Twilight Zone”

I don’t have any issues using the SD in a Tynemouth SD2PET. Just no wireless or passthru capability.

Once I @cd to a d64 there is no going back.

Yes I was thinking about doing that but since the firmware file shows “last year “ I wasn’t sure it would be newer. I may go ahead and try it anyway.

I would guess that we may see updated firmware so I will wait for that.

Have you had any success with your issues using d64 files with the Max 2? I’m having similar problems with mine. I was also hoping to use my 8050 via pass thru.

Back in the day (the 80's) I found a cloth cover that was designed for a 12" PET. The dealer had a couple of them but I don't know who or how they were made. It was a wise investment which has helped keep the SuperPET relatively clean over the years.

I have the “three board” configuration SuperPet. Yes, I have downloaded the patched Waterloo disks from Mike Nebrezney’s site. I learned about your efforts to crack the 6702 while working with him on some document and software archiving work a few years ago. That was some impressive work you did...

I was preparing to solder a bypass wire when I decided to check all J8 solder points again with a stronger magnification. I have an idea as to how this failure point occurred in this case. About 12 years ago I had a short on the 6809 board that ran down the J8 power strap on pin 4 to the 8032...

Dave, thanks for your help troubleshooting thisi ssue. I have left PETTESTER running through hex 30 cycles and will now put things back together, adding the 6809 board to see where things stand.

Thanks Sirius, you pegged it early on but I just missed the failure point. Lesson learned.

One takeaway for me is to use a higher magnification! Do CR2 and CR4 normally run hot? Not too hot to touch but quite warm.

Well don't I feel stupid :rolleyes: I have examined the board several times for any anomalies but missed it completely. I found a bad solder joint under J8, bet you can guess the pin. So I have repaired the pin 4 solder joint and have PETESTER running now. The voltages check out good now. I...

With J8 connected providing power to the board I see the expected VAC across the transformer secondary outputs. VR1 -5.1 VDC CR5 20/12 VDC C10 2 VDC C11 .5 VDC