Apple Macintosh PowerBook 190 Series - Manual (Page 166)

Replacing the keyboard
Before you replace the keyboard, make sure the keyboard cables are secure. If
the keyboard cables are loose, follow these steps to replace the cables:
1 Lift the bail on the connector with a straightened paper clip or similar object.
2 Insert the ribbon cable into the connector.
3 Push down on the bail with a straightened paper clip or similar object
to secure the ribbon cable.
Bail
1 2 3
161 Installing a RAM Expansion Card