14-24 Service Guide
Assembly Replacement and Post-Repair Procedures 8719ET/20ET/22ET
Removing the A15 Preregulator Assembly 8719ES/20ES/22ES
RF Network Analyzers
Removing the A15 Preregulator Assembly
Tools Required
• T-10 TORX screwdriver
• T-15 TORX screwdriver
• ESD (electrostatic discharge) grounding wrist strap
Removal
1. Remove the rear panel; refer to “Removing the Rear Panel Assembly” on page 14-14.
2. Disconnect the wire bundles (item 1) (item 2) from the analyzer.
3. Remove the preregulator (A15) from the frame.
Replacement
1. Reverse the order of the removal procedure.
NOTE
• When reinstalling the preregulator (A15), make sure the 3 grommets on
the wiring bundles are seated in the slots on the back side of the
preregulator and also in the slot in the card cage wall.
• After reinstalling the preregulator (A15), be sure to set the line voltage
selector to the appropriate setting, 115 V or 230 V.
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