Lcd Backlight Pcb Removal And Replacement - Anritsu S412E Maintenance Manual

7-11 LCD Backlight PCB Removal and Replacement

6. Disconnect the LCD backlight cable from the LCD backlight PCB.
7. Disconnect the LCD cable from the side of the LCD.
8. Carefully remove the LCD.
9. Reverse the above steps to install the replacement LCD.
Pay attention to the routing of the LCD Backlight Cable. The cable must be positioned so it is not
Note
pinched when the unit is reassembled.
7-11 LCD Backlight PCB Removal and Replacement
This procedure provides instructions for removing and replacing the S412E LCD backlight PCB.
1. Open the case as described in
2. Remove the Main/VNA PCB assembly from the front panel as described in
Replacement".
3. Perform Step 1 through Step 4 of
4. Disconnect the LCD backlight cable from the LCD backlight PCB.
5. Use a Phillips screw driver to remove the two screws securing the LCD backlight PCB to the Main PCB
assembly (Figure
Figure 7-16. Replacing the LCD PCB
6. Carefully remove the LCD Backlight PCB.
7. Reverse the above steps to install the replacement LCD backlight PCB.
Pay attention to the routing of the LCD Backlight Cable. The cable must be positioned so it is not
Note
pinched when the unit is reassembled.
7-14
Section 7-2 "Opening the S412E
Section 7-10 "LCD Assembly
7-16).
PN: 10580-00324 Rev. N
Case".
Replacement".
Remove 2 screws to replace LCD PCB
Chapter 7 — Assembly Replacement
Section 7-3 "PCB Assembly
LCD Backlight
Cable
Ribbon Cable
Connects to
Keypad PCB
S412E MM