After a few years, i have now a similiar issue.
As you can See on the Monitor the Video SRAM is Not reseted by CPU. I can use the Keyboard reset but it doesnt reset the Video RAM.
No Progress in it ?
I had my Apple III for More Than three years and Transportes to an exhibition recently.
Unfortunately, After switching on, it Displays at first the Diagnose RAM Test and, After checked Memory and Logic ICS, only character salad as Seen on the screen.
With an Oszi, we could see that 1 MHz is on...
Hi, i sell my Vector Graphic MZ -
IT works fine.
Cards:
1 Disk Controller micropolis
1 Video Terminal Card
1 64k RAM Card
1 Z80 CPU Card
1 Eprom Card
1 Network Card...