FHP DV1400 ユーザーズマニュアル

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Maintenance and Service Guide
Removal and Replacement Procedures
5. Remove the four PM2.0×3.0 screws 1 that secure the menu 
control button board and shield to the top cover.
6. Remove the menu control button board shield 2 and 
board 3.
Removing the Menu Control Button Board and Shield
Reverse the above procedure to install the menu control button 
board and shield.