NEC VERSA 6050MH Service Manual page 92

4. Remove the keyboard as follows.
T
Locate the two ribbon cables that attach to the CPU board via connectors P3
and P4.
Figure 4-10 Disconnecting Keyboard Cables
T
Use a flat-head screwdriver to push open the connector tabs.
T
Lift the keyboard out of the base unit.
Field Service Guidelines 4-13