66 16900A, 16902A, and 16903A Service Guide
6 Replacing Assemblies
To remove and replace the touch-screen controller board
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 front panel assembly" on
page 64
2 Place the front panel assembly face down and disconnect
the cables from the touch-screen controller board as
shown.
3 Using a Torx T6 screwdriver, remove the 2 screws
securing the board to the front panel board.
To u ch - S c r ee n
Controller Board
T6 Screw
T6 Screw
Touch-Screen
Cable Assembly
Jumper
8-Wire
Touch-Screen
Cable
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