Sharp MZ

Great! Thank you mz-80a! There was also some progress on my side I wanted to share: I was not sure if my findings were because the in circuit situation and decided to replace the IC 3C using a IC socket. (CD4069UBE) Unfortunately I damaged two soldering spots. Stupid beginner's mistake.. :? Had to b...

Great, very interesting!
I think I will have to replace IC 3C anyway in order to use the connector P12. But it is great to start into the adventure with the confirmation that it works in practice, too!
Thank you very much!

Dear Sharp MZ enthusiasts, after 40 years Sharp MZ abstinence I risked to buy a defective MZ 700 again, the poor version without tape drive with the "bridged" 9 pin connector for external tape IO. After replacement of 2 capacitors in the PSU the computer is booting again, keyboard and TV-o...