2-32
Assembly Replacement
A13 I/Q MUX (E8267C Models Only)
A13 I/Q MUX (E8267C Models Only)
Tools Required
• T-10 driver
• 5/16” open ended wrench
• needle-nose pliers
Removal Procedure
Refer to Figure 2-14 for this procedure.
1. Disconnect the power cord.
2. Remove the covers from the signal generator. Refer to "Outer Instrument Cover" on page 2-5
and "Inner Instrument Cover" on page 2-7.
3. Position the signal generator with the A31 Motherboard facing you and the RF deck on top.
4. Using the 5/16” open ended wrench, disconnect the W77 RF cable from the A13 I/Q MUX.
5. Using the 5/16” open ended wrench, disconnect the W78 RF cable from the A13 I/Q MUX.
6. Using the needle-nose pliers, disconnect the following flexible cables:
• W80 from A13J3
• W79 from A13J4
• W62 from A13J7
• W63 from A13J6
7. Using the T-10 driver, remove the three screws (1) that attach the A13 I/Q MUX to the RF deck.
8. Disconnect the W70 ribbon cable from the A13 I/Q MUX.
9. Remove the A13 I/Q MUX from the RF deck.
Replacement Procedure
• Reverse the order of the removal procedure.
• Torque all T-10 screws to 9 in-lbs.
• Torque all RF connectors to 8 in-lbs.
• Perform the post-repair adjustments and performance tests that pertain to this removal
procedure.