Agilent Technologies 16900A

80 16900A, 16902A, and 16903A Service Guide
6 Replacing Assemblies
To remove and replace the card cage and fans
16900A and 16902A card cage and fans
1 Perform previous procedures:
• “To prepare the instrument for disassembly" on
page 48
• “To remove and replace the cover" on page 52
• “To remove and replace the CPU tray" on page 53
• “To remove and replace the I/O board" on page 60 (for
16903A model only)
2 Using a Torx T10 screwdriver, remove the screws holding
the module ejectors to the rear of the chassis.
3 Using a Torx T10 screwdriver, remove the 6 screws
holding the card cage assembly to the rear of the chassis.
4 Disconnect the fan cables from the module interface
board.
5 Using a Torx T10 screwdriver, remove the 4 screws
securing the card cage to the chassis.
6 Using a Torx T10 screwdriver, remove the 4 screws
securing the fan from the card cage.
Module
Ejector
Screws
(8 T10)
Card Cage
Screws (6 T10)
Module
Ejector
Screws
(6 T10)
Card Cage
Screws (6 T10)
16903A
Chassis
16900A/16902A
Chassis