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Repair and Replacement Procedures
Removing and Replacing the A1–A3 and Other Front Panel Subassemblies
Removing and Replacing the A1–A3 and Other Front Panel
Subassemblies
Tools Required
— T-6 TORX driver (set to 3 in-lb)
— T-8 TORX driver (set to 8 in-lb)
— 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 9 in-lb)
— 5/16 inch open-end torque wrench (set to 10 in-lb)
— 11 mm socket wrench (set to 9 in-lb)
— ESD grounding wrist strap
Refer to
page
on page 7-16
Pre-removal Procedure
1. Disconnect the power cord.
2. Remove the front panel assembly. Refer to
Removing the RPG Assembly
1. Remove the round knob (RPG) from the front panel by gently pulling the
2. Disconnect the RPG to Interface board cable (item [24]).
3. With the 11 mm socket wrench, remove the RPG board's washer and hex
4. Remove RPG assembly from the interface board.
Removing the A2 USB Board
1. Remove the five retaining screws (item
Removing the A1 Front Panel Interface Board and Keypad Assembly
1. Remove the A2 USB board as outlined above.
2. Remove the RPG assembly as outlined above.
3. Disconnect the following cables from the A1 front panel interface board:
7-10
Figure 7-3 on page
7-14,
Figure 7-6 on page
for the following procedures.
Front Panel Assembly" on page
knob forward.
nut.
it from the A1 front panel interface board.
tape (item [14]) from connector and the LCD display to interface board
cable (item [18]), LED driver board (backlight converter board) to interface
7-13,
Figure 7-4 on page
7-15,
Figure 7-7 on page
"Removing and Replacing the
7-8.
) from the USB board and unplug
Keysight N5247B Service Guide
7-14,
Figure 7-5 on
7-15, and
Figure 7-8
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Troubleshooting
