Assembly Replacement
A22 Line Module
2-46
A22 Line Module
Tools Required
• T-10 driver
• 5.0 mm wrench
• needle-nose pliers
Removal Procedure
Refer to Figure 2-22 for this procedure.
1. Disconnect the power cord.
2. Remove the covers from the signal generator. Refer to "Outer Instrument Cover" on page 2-4 and
"Inner Instrument Cover" on page 2-6.
3. Position the signal generator with the rear panel facing you.
4. If you have Option UNJ, refer to "A32 10 MHz Crystal Oscillator (Option UNJ)" on page 2-72 to remove the assembly.
5. Using the T-10 driver, remove the two screws (1) that attach the A22 Line Module to the rear panel.
6. Using the 5.0 mm wrench, remove the nut (2) and washer from the grounding screw to disconnect A22W2.
7. Using the needle-nose pliers, disconnect the A22W1 from the A19 Power Supply through the side panel of the signal
generator.
8. While pulling out the A22 Line Module from the rear panel, guide out the A22W1 from the A19’s shielding.
9. Remove the A22 Line Module
Replacement Procedure
• Reverse the order of the removal procedure.
• Torque all T-10 screws to 9 in-lbs.
• Torque all nuts to 9 in-lbs.
• Perform the post-repair adjustments and performance tests that pertain to this removal procedure.
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