14-12 Service Guide
Assembly Replacement and Post-Repair Procedures HP 8719ET/20ET/22ET
Removing the Display Lamp and Assembly HP 8719ES/20ES/22ES
RF Network Analyzers
Removing the Display Lamp and Assembly
Tools Required
• T-10 TORX screwdriver
• T-15 TORX screwdriver
• small slot screwdriver
• ESD (electrostatic discharge) grounding wrist strap
• 5/16-inch open-end torque wrench (set to 10 in-lb)
Removal
1. Remove the front panel assembly (A1), refer to “Removing the Front Panel Assembly”
on page 14-8.
2. Remove the 2 ribbon cables between:
• (Item 1) the inverter assembly (A20) and the front panel interface board (A2)
• (Item 2) the inverter assembly (A20) and the display assembly (A18)
3. Remove the 3 screws (item 3) that attach the display cover to the front panel.
4. Lift the display from the front panel and remove the 2 screws (item 4) from the outside
of the display.
5. Pull the lamp (item 5) out with a curving side motion, as shown.
Replacement
1. Reverse the order of the removal procedure.
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