Agilent Technologies 16900A, Руководство по обслуживанию

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74 16900A, 16902A, and 16903A Service Guide
6
Replacing Assemblies
To remove and replace the keypad and keypad 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 front panel interface
board"
on page 69
• “To remove and replace the LCD bracket assembly" on
page 71
2 Remove the knobs from the front of the frame.
3 Using a Torx T10 screwdriver, remove the 1 screw
securing the keypad board to the front frame.
4
Remove the board and keypad from the frame.
5 Reverse this procedure to install the keypad and keypad
board.
C A U T I O N
Wear ESD finger cots or use care not to touch the black pads on
keypad and on the keypad board. Finger oils can impair contact. If
necessary, carefully clean the contacts using alcohol and lint-free
swabs or wipes.