Agilent Technologies 1670G Series Service Manual page 177

To remove and replace the front panel and keyboard
Using previous procedures, remove the following assemblies:
1
•
Handle
•
Rear Feet
•
Cover
•
Disk Drive Assembly
•
Acquisition Board
•
CPU Board
Remove the four screws connecting the front panel.
2
Slide the front panel assembly out the front of the instrument.
3
Slide the spacer out the front of the instrument to remove it.
4
Older units have copper ground strips on the spacer. Be careful not to lose the strips.
When installing the spacer, insert the pins of the spacer in the appropriate holes in the
chassis. You can hold the spacer in place while installing the front panel by holding it with
your finger through the disk drive mounting slot in the chassis.
Remove the RPG knob by pulling the knob off the RPG shaft.
5
Disassemble the front panel assembly by lifting the keyboard circuit board away
6
from the front panel.
Lift the elastomeric keypad out of the front panel.
7
Reverse this procedure to assemble and install the front panel assembly.
8
When assembling the front panel, check that the holes in the elastomeric keypad and the
keyboard circuit board align with the pins on the front panel.
To remove and replace the front panel and keyboard
Replacing Assemblies
6–15