On Mon, 2020-10-19 at 20:20 -0400, Chris Zach via cctalk wrote:
won't work. Maybe I'll just drag out the 11/05 and get that working
first, it's got a nice front panel that doesn't lock up often :-)
The 11/05 was the first 11 that I repaired and got working. You should
note that the 11/05's front panel is driven by the uCode of the CPU.
It's connection to the CPU is through a "serial" protocol (it's been
too long...I think it's just a big shift register) to keep the pin
count (e.g. cost) low.
TTFN - Guy