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14-8 Service Guide

Assembly Replacement and Post-Repair Procedures HP 8719ET/20ET/22ET

Removing the Front Panel Assembly HP 8719ES/20ES/22ES

RF Network Analyzers

Removing the Front Panel 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. Disconnect the power cord.

2. Remove the front bottom feet (item 1).

3. Remove all the RF cables that are attached to the front panel (item 2).

NOTE Options may differ from ﬁgure and have more than one RF cable on the front

panel.

4. Remove the Line button (item 3).

5. Remove the trim strips (item 4) from the top edge of the front frame by prying under the

strip with a small slot screwdriver.

6. Remove the 7 screws (item 5) from the top and bottom edges of the frame.

a. Remove all 4 ﬂathead screws from the top and the 3 ﬂathead screws from the

bottom.

NOTE The 3 bottom screws are on both ends and in the middle. They look like the

screws from the top. Do not remove the other 6 screws from the bottom.

7. Slide the front panel over the test port connectors.

8. Disconnect the ribbon cables (item 6) and (item 7). The front panel is now free from the

instrument.

Replacement

1. Reverse the order of the removal procedure.

NOTE When reconnecting semirigid cables, torque the to 10 in-lb.

HP 8719ET Service Guide

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