Agilent N5161A/62A/81A/82A/83A MXG Signal Generators Service Guide
Assembly Replacement
Key Pad (N5181A/82A/83A only)
3-20
Key Pad (N5181A/82A/83A only)
Tools Required
• T-10 driver
Removal Procedure
Refer to Figure 3-9 for this procedure.
1. Disconnect the power cord.
2. Remove the covers from the signal generator. Refer to ”Outer Cover” on page 3-4, ”Inner Top Cover” on page 3-6, and ”Inner Bottom
Cover” on page 3-8.
3. Remove the front-panel from the signal generator. Refer to ”Front-Panel” on page 3-10.
4. Remove the A6 DC-AC Inverter Interface Board from the signal generator. Refer to ”A6 DC-AC Inverter Interface Board
(N5181A/82A/83A only)” on page 3-16.
5. Remove the LCD Display from the signal generator. Refer to ”LCD Display (N5181A/82A/83A only)” on page 3-14.
6. Using the T-10 driver, remove the twelve screws (1) that secure the Key Pad (2) to the front-panel frame.
7. Remove the Key Pad.
Replacement Procedure
1. Reverse the order of the removal procedure.
NOTE Hand start the two screws labeled “A” and “B” until they are snug, then install the remaining ten screws.
2. Torque all screws to 9 in–lbs.
3. Perform the post-repair performance tests that pertain to this replacement procedure, see Chapter 4, Post-Repair Procedures and
Performance Verification.
Figure 3-9 Key Pad
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