Rear Panel Assembly - Agilent Technologies 8753ES Option 011 Service Manual

Assembly Replacement and Post-Repair Procedures

Rear Panel Assembly

Rear Panel Assembly
Tools Required
• T-10 TORX screwdriver
• T-15 TORX screwdriver
• ESD (electrostatic discharge) grounding wrist strap
Removal
1. Disconnect the power cord and remove the top (item 1) and bottom covers (refer to
"Covers" on page 14-6).
2. Refer to Figure 14-6. Remove the four rear standoffs (item 2).
3. If the analyzer has option 1D5, remove the BNC jumper from the high stability
frequency reference (item 3).
4. Remove the four screws (item 5) that attach the interface bracket to the rear panel.
5. Remove the six screws (items 6 and 7) that attach the preregulator to the rear panel.
6. Remove the six screws (item 8) from the rear frame: two from the top edge, and four
from the bottom edge.
7. Remove the screw from the pc board stabilizer (item 9) and remove the stabilizer.
8. Lift the reference board (A12) from its motherboard connector and disconnect the
flexible RF cable from its connector on A12 (item 10).
9. Identify the wiring harness leading to the VGA connector (item 4). Follow this harness
back to its connection on the motherboard. The air flow cover, attached by two screws,
will have to be removed to get to this connection. Disconnect the VGA wire harness at
this point.
10.Pull the rear panel away from the frame. Disconnect the ribbon cable (item 11) from the
motherboard connector, pressing down and out on the connector locks. Disconnect the
wiring harness (item 12) from the motherboard.
Replacement
1. Reverse the order of the removal procedure.
14-14 Chapter 14