unfortunately the keyboard is defect, therefore an external (usb) keyboard is required;

- Details:
* The built-in keyboard is unplugged for for now; A keyboard replacement should work as all internal components except for the keyboard itself seem to be OK.
* The keyboard is damaged due to contact oxidation/contact repair attempt with wrong chemicals.
* Besides the damaged built-in keyboard the system seems to be OK (Labtix installed for initial tests - runs without problems).