Lcd Assembly Replacement - Anritsu Spectrum Master MS2721A Maintenance Manual

9. LCD Assembly Replacement

This procedure provides instructions for removing and replacing the Liquid Crystal Display (LCD) once the Main PCB
assembly has been separated from the Spectrum Master.
1. Open the Spectrum Master case as detailed in Section 6.
2. Remove the Main PCB assembly from the front panel as directed in Section 7.
3. Use a Phillips screw driver to remove the four screws securing the LCD to the Main PCB assembly.
4. Disconnect the LCD backlight cable from the LCD backlight PCB.
NOTE: Pay attention to the routing of the LCD Backlight Cable. The cable must be positioned so as not
to be pinched when the assembly is reattached to the front panel.
5. Disconnect the LCD cable from
6. Carefully remove the LCD.
LCD
CABLE
TO J4003
Figure 15. LCD Assembly Replacement
7. Reverse the above steps to install the replacement LCD.
NOTE: Pay attention to the routing of the LCD Backlight Cable. The cable must be positioned so as not
to be pinched when the assembly is reattached to the front panel.
Spectrum Master MM
on the back side of the Main PCB.
J4003
REMOVE
SCREWS
LCD
BACKLIGHT
CABLE
31