Removing The A7 Cpu Board Assembly; Tools Required; Removal; Replacement - HP 8719ET Service Manual

Assembly Replacement and Post-Repair Procedures

Removing the A7 CPU Board Assembly

Removing the A7 CPU Board Assembly

Tools Required

• T-10 TORX screwdriver
• ESD (electrostatic discharge) grounding wrist strap

Removal

1. Disconnect the power cord.
2. Remove the 4 bottom feet and bottom cover, refer to
page 14-6.
3. Remove the 4 screws (item 1) on the rear panel.
4. Turn the analyzer over and remove the screw (item 2) that secures the CPU board to
the deck.
5. Disconnect the ribbon cable (item 3).
6. Disconnect the ribbon cable (item 4) from the CPU board.
7. Slide the board towards the front of the instrument so that it disconnects from the 3
standoffs (item 5).
8. Disconnect the ribbon attached at the rear of the CPU board.
9. Lift the board off of the standoffs.

Replacement

1. Reverse the order of the removal procedure.
14-20
HP 8719ET/20ET/22ET
HP 8719ES/20ES/22ES
RF Network Analyzers
"Removing the Covers" on
Service Guide