Hi John,
With the monitor, you only need to short the M key out during boot up to get into the monitor, then remove your short, from there you can check your other keys out.
As you are taking CP/M I assume the Microbee in question is a 128k, if so just burn yourself a t128 rom (2764/128) from the repository and replace your boot rom with that (ROM1). power up and it takes you straight into a specifically designed test program.
As long as your "K" key is working you can launch the Keyboard test portion of the program which takes you through each of the keys in sequence, the only down side it will stop at the first none functioning key preventing you from progressing to the next key.
The way around it is to use a shorting lead to short out that key so you can progress to the next.
the advantage over this compared with using the "Monitor" is the wonderful built in memory test.
There is a memory test PROM image ut212 for the older Microbee's however they don't have the keyboard test.
Ernest
With the monitor, you only need to short the M key out during boot up to get into the monitor, then remove your short, from there you can check your other keys out.
As you are taking CP/M I assume the Microbee in question is a 128k, if so just burn yourself a t128 rom (2764/128) from the repository and replace your boot rom with that (ROM1). power up and it takes you straight into a specifically designed test program.
As long as your "K" key is working you can launch the Keyboard test portion of the program which takes you through each of the keys in sequence, the only down side it will stop at the first none functioning key preventing you from progressing to the next key.
The way around it is to use a shorting lead to short out that key so you can progress to the next.
the advantage over this compared with using the "Monitor" is the wonderful built in memory test.
There is a memory test PROM image ut212 for the older Microbee's however they don't have the keyboard test.
Ernest