Removing And Replacing The Front Panel Led Boards - Agilent Technologies N5242A Service Manual

Repair and Replacement Procedures

Removing and Replacing the Front Panel LED Boards

Removing and Replacing the Front Panel LED Boards
Tools Required
• T-10 TORX driver (set to 9 in-lb)
• T-20 TORX driver (set to 21 in-lb)
• 5/16 inch open-end torque wrench (set to 10 in-lb)
• 1 inch open-end torque wrench (set to 72 in-lb)
• ESD grounding wrist strap
Removal Procedure
Refer to Figure 7-18
Be careful not to damage the center pins of the semirigid cables. Some flexing
CAUTION
of the cables is necessary to remove the assembly. However, do not over-bend
the semirigid cables.
1. Disconnect the power cord.
2. Remove the test port couplers. Refer to
Port Couplers" on page
3. Remove two screws (item
board from the analyzer.
Replacement Procedure
1. Reverse the order of the removal procedure.
2. Perform the post-repair adjustments, verifications, and performance tests that pertain
to this removal procedure. Refer to
7-60
for this procedure.
7-38.
①
) from the LED board to be removed and remove the LED
Table 7-2 on page
PNA Series Microwave Network Analyzers
"Removing and Replacing the A29–A32 Test
7-68.
N5241A/42A
Service Guide N5242-90001