Keysight CXG, EXG, and MXG X-Series Signal Generators Service Guide 345
Assembly Replacement
A1 Power Supply
A1 Power Supply
Tools Required
— T-10 driver
Removal Procedure
Refer to Figure 15-5 for this procedure.
1. Disconnect the power cord.
2. Remove the covers from the signal generator. Refer to “Outer Cover” on
page 336, and “Inner Top Cover” on page 338.
3. Remove the rear panel from the signal generator. Refer to “Rear Panel
(N5171B/81B)” on page 403, or “Rear Panel (N5166B, N5172B, and
N5182B)” on page 405, or “Rear Panel (N5173B/83B)” on page 408.
4. Place the signal generator flat and upright with the front-panel facing you.
5. Using the T-10 driver, press the connector latch to disconnect B1W1 thru
B4W1 from the A1 Power Supply.
6. If Option 660 is installed, disconnect the Aux Power Supply cable (2) from
the A1 Power Supply.
7. Using the T-10 driver, remove the six screws (1) that secure the A1 Power
Supply to the chassis.
8. Remove the A1 Power Supply.
Replacement Procedure
1. Reverse the order of the removal procedure.
2. Recommended torque for all screws is 9 in–lbs.
3. Perform the post-repair procedures that pertain to this replacement
procedure. See Chapter 16, “Pre and Post-Repair Procedures.”
The rear panel must be removed so the power connector on the A1 Power
Supply can be disconnected from the A3 RF assembly without damaging
the connector pins.
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