54 16900A, 16902A, and 16903A Service Guide
6 Replacing Assemblies
4 Use the tray levers to pry and disconnect the CPU board
from the module interface board and slide the tray out
being careful not to catch the loose cables on anything.
5 Reverse this procedure to install the CPU tray.
16903A CPU tray
1 Perform previous procedures:
• “To prepare the instrument for disassembly" on
page 48
• “To remove and replace the cover" on page 52
2 Disconnect cables from the module interface board.
T10 screws (7)
Tray lever
Post and alignment hole
Connectors
Module Interface Board
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