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Repair and Replacement Procedures
Removing and Replacing the Display Inverter Board and the Display Lamp
Removing and Replacing the Display Inverter Board and
the Display Lamp
Tools Required
• T-10 TORX driver (set to 9 in-lb)
• T-20 TORX driver (set to 21 in-lb)
• Small jeweler's screwdriver
• 5/16 inch open-end torque wrench (set to 10 in-lb)
• ESD grounding wrist strap
Pre-removal Procedure
1. Disconnect the power cord.
2. Remove the front panel assembly. Refer to
Assembly" on page
3. Remove the display assembly. Refer to
7-10.
Removing the Display Inverter Board
Refer to
Figure 7-4
for this procedure.
1. Disconnect the ribbon cable (item
display inverter board.
2. Lift the inverter retention tabs (item
inverter board (item
3. Lift the display inverter board (item
Stop now if you are only removing the display inverter board. Replace the
NOTE
board and reverse the removal procedure.
Removing the Display Lamp
Refer to
Figure 7-4
for this procedure.
1. Remove the display lamp cable (item
2. With a T-10 TORX driver, remove the four screws (item
and then lift the panel off.
3. Remove the four display bumpers (item
4. To gain access to the display lamp, rotate the top of the display outward slightly.
7-12
7-8.
"Removing the A2 Display Assembly" on page
①
) and the display lamp cable (item
③
) with slight pressure and rotate the display
④
).
④
) out of the slot.
②
) from the display inverter board (item
PNA Series Microwave Network Analyzers
"Removing and Replacing the Front Panel
⑤
) on the display back panel
⑥
).
N5230A
②
) from the
④
).
Service Guide N5230-90014
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Troubleshooting
