02-04-2022, 02:49 PM
I have repaired two Microbees now using the schematic required for the particular model although most mother boards are similar. The core boards most certainly are not.
If you have a good knowledge of digital electronics and multimeters (analogue better than digital) and a good 100 Mhz oscilloscope then the task is not that hard.
I socketed both motherboards and core boards of the two microbee's I own. They were both self built mother boards and the soldering was abysmal, admittedly I spent my working life in electronics teaching the subject in the RAAF in later years.
My first Microbee was bought in 1983 but I sold it on only a few years later, and yes I wrote in Microworld Basic and some Z80 machine code. I moved on to CP/M with another computer (Little Big Board with 8" floppy drives) and then started the IBM clone story through DOS 3.2 and on and upwards to windows. Now here we are and people are retracing their steps including myself.
Regards Robert
If you have a good knowledge of digital electronics and multimeters (analogue better than digital) and a good 100 Mhz oscilloscope then the task is not that hard.
I socketed both motherboards and core boards of the two microbee's I own. They were both self built mother boards and the soldering was abysmal, admittedly I spent my working life in electronics teaching the subject in the RAAF in later years.
My first Microbee was bought in 1983 but I sold it on only a few years later, and yes I wrote in Microworld Basic and some Z80 machine code. I moved on to CP/M with another computer (Little Big Board with 8" floppy drives) and then started the IBM clone story through DOS 3.2 and on and upwards to windows. Now here we are and people are retracing their steps including myself.
Regards Robert