Replacing Assemblies 6
16900A, 16902A, and 16903A Service Guide 69
To remove and replace the front panel interface 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
• “To remove and replace the touch- screen controller
board" on page 66
• “To remove and replace the backlight inverter
board" on page 68
2 Place the front panel assembly face down and disconnect
the cables from the front panel interface board as shown.
3 Using a Torx T10 screwdriver, remove the screw that
secures the front panel interface board to the LCD
bracket assembly.
4 Push board slightly down to remove standoffs from the 4
keyholes then remove the board.
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