4.23 Fluorescent Lamp 4 Replacement Procedures NOTE: Make sure there is no dust between the LCD panel and backlight unit. If any dust is found, remove it with crepe tape or others which has no remaining of paste. (I) LCD panel Guide rib Guide rib Guide rib Guide rib (H) Backlight unit Make sure the LCD panel is installed in the guide rib Figure 4-78 Replacing 15.0 Inch Sharp fluorescent lamp (XGA) (17) Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-93