Removing The A26 High Stability Frequency Reference (Option 1D5) Assembly; Tools Required; Removal; Replacement - HP 8719ET Service Manual

Assembly Replacement and Post-Repair Procedures

Removing the A26 High Stability Frequency Reference (Option 1D5) Assembly

Removing the A26 High Stability Frequency Reference
(Option 1D5) Assembly

Tools Required

• T-10 TORX screwdriver
• T-15 TORX screwdriver
• 9/16-inch hex-nut driver
• ESD (electrostatic discharge) grounding wrist strap

Removal

1. Remove the rear panel, refer to
2. Disconnect W30 from the high stability frequency reference board (A26).
3. Remove the BNC connector nut and washer from the "10 MHz PRECISION
REFERENCE" connector (item 1) on the rear panel.
4. Remove the screw (item 4) that attaches the 1D5 assembly to the rear panel.
5. Remove the screw (item 2) that secures the high stability frequency reference board
(A26) to the bracket.
6. Slide the board out of the bracket. Be careful not to lose the plastic spacer washer
(item 3) that is on the BNC connector as the board is being removed.

Replacement

1. Reverse the order of the removal procedure.
NOTE Before reinserting the high stability frequency reference board (A26) into the
bracket, be sure the plastic spacer washer (item 3) is on the BNC connector.
14-32
"Removing the Rear Panel Assembly" on page
HP 8719ET/20ET/22ET
HP 8719ES/20ES/22ES
RF Network Analyzers
14-14.
Service Guide