With the core components of my TRS-80 Model 4 PC working and looking good, the next step was to get my case bezel ready to accept the different shaped 12″ LCD display to replace the previous 30 year old 12″ square CRT. First step was to take some measurements using some marked cardboard pieces to […]

With the keyboard re-assembled I needed to figure out if all of the keys were working.  To test this I plugged the keyboard back into the base unit and main motherboard and fired it up.  Lucky for me, all was working again.  So to test all the keys I wrote short program to show the […]