Chapter 4 175
Assembly Replacement
Front Frame
Front Frame
For most service situations, the front frame assembly can be “dropped”
from the deck without disconnecting any cables. Refer to the section
“Drop the Front Frame” . To completely remove the front frame,
continue with the “Removal” section.
CAUTION Use ESD precautions when performing this replacement procedure.
Drop the Front Frame
1. Remove the instrument outer case. Refer to the “Instrument Outer
Case” removal procedure.
2. Refer to Figure 4-4. Using the T-10 driver, remove the 6 screws (1)
that attach the front frame assembly (2) to the deck.
3. Pull the front frame off of the deck until it is disengaged from the
disc drive.
4. At this point, the front frame can be placed flat on the bench for
service while still attached to the instrument. If you want to
completely remove the front frame, continue with the “Removal”
section.
Removal
1. Using a 9/16” socket drive, remove the nut securing the External
Trigger Input
BNC connector. Take care to not scratch the front dress
panel. A 9/16” deep-socket nut driver, part number 8720-0008, is
available from Agilent Technologies.
2. Refer to Figure 4-4. Disconnect the ribbon cable (3) from the A3
front panel interface board. Pull the coaxial cable (4) from the front
frame and unclip from the two cable clamps.
3. Lift the front frame assembly away from the deck.
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