Removing And Replacing The A1 Power Supply Assembly - Keysight Technologies N5290/1A PNA Series Service Manual

Repair and Replacement Procedures

Removing and Replacing the A1 Power Supply Assembly

Removing and Replacing the A1 Power Supply Assembly
Tools Required
— T-10 TORX driver (set to 9 in-lb)
— T-20 TORX driver (set to 21 in-lb)
— ESD grounding wrist strap
Removal Procedure
Refer to
1. Disconnect the power cord.
2. Remove the outer and inner covers. Refer to
3. Using a T-10 TORX, remove the six pan head screws (item
4. Using a T-20 TORX, remove the pan head screw as indicated (item
5. Lift the A6 power supply assembly from the top of the instrument.
Replacement Procedure
1. Reverse the order of the removal procedure.
2. Perform the post-repair adjustments, verifications, and performance tests
7-24
Figure 7-15 for this procedure.
page 7-8.
power supply.
from the test set rear panel.
that pertain to this removal procedure. Refer to
"Removing the Cover" on
①
Table 7-2 on page
Keysight N5290/1A Service Guide
) from the
➁
)
7-36.