Casio 130CR Service Manual page 8

Removing the Main PCB and Display PCB
6. Remove the three connectors (CNKEY1, CNBAT1, CNPR1) and the four screws.
7. Remove the two hooks and then Main PCB.
Connector
(CNKEY1)
Hook
Screws
8. Remove the two hooks and then Display PCB.
Hooks
Removing the printer unit
9. Remove one screw and then the printer unit.
Screw
Hook
Connector
(CNBAT1)
— 6 —
Connector
(CNPR1)