Anritsu 373XXA manual Floppy Disk Drive, 10ALCD Backlight, Lamp, 11FLOPPY Disk Drive

REMOVE AND REPLACE FLOPPY DISK DRIVE

8-10ALCD BACKLIGHT	This paragraph provides instructions for the removal and replacement
LAMP	of the LCD Backlight Lamp, which is recommended at approximately
	10,000 hours of operation, or if the display becomes dim.
		NOTE
		The front panel assembly does not have to be removed.
	Preliminary:
	￿ Switch 373XXA power off. Remove the power cord.
	￿ Remove all covers (paragraph 8-3).
	Remove/Replace Procedure:
	Step 1.	Remove the LCD assembly (paragraph 8-10).
	Step 2.	Remove the Backlight Lamp cover as follows:
		On Sharp LQ9D169 LCD displays, remove the three Phil-
		lips screws on the side opposite the PCB, then lift off the
		cover.
		On Sharp LQ9D340 LCD displays, on the side opposite the
		PCB, remove the tape covering the center catch. Starting at
		one end, very carefully push each catch clear of its tab
		while gently lifting the cover. Release all five catches and
		remove the cover.
	Step 3.	Carefull replace the Backlight Lamp, while being careful
		not to apply pressure to the area where the glass tube and
		the end caps of the Backlight Lamp meet.
	Step 4.	Reinstall the Backlight Lamp cover.
	Step 5.	Reinstall the LCD Assembly and reconnect electrical con-
		nectors.
	Step 6.	Reinstall the top cover.
	Step 7.	Turn the instrument on. Adjust the Brightness Potentiome-
		ter at the rear panel for maximum display brightness.
8-11FLOPPY DISK DRIVE	This paragraph provides instructions for removing and replacing the
	Floppy Disk Drive assembly.

NOTE

It is not necessary to remove the front panel assembly to perform this procedure.

373XXA MM 8-17