HP Pavilion Dv9400 Entertainment Notebook Pc Series Service Guide

Maintenance and Service Guide C–1
C
Display Component Recycling
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WAR N I N G : The backlight contains mercury. Caution should be 
exercised when removing and handling the backlight to avoid 
damaging this component and causing exposure to the mercury.
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CAUTION: The procedures in this appendix can result in damage to 
display components. The only components intended for recycling 
purposes are the liquid crystal display (LCD) panel and the backlight. 
Careful handling should be exercised when removing...

C–2 Maintenance and Service Guide
Display Component Recycling
This appendix provides disassembly instructions for the display 
assembly. The display assembly must be disassembled to gain 
access to the backlight 1 and the LCD panel2.
✎Disassembly procedures differ from one display assembly to 
another. The procedures provided in this appendix are general 
disassembly instructions. Specific details, such as screw sizes, 
quantities, and locations, and component shapes and sizes, can 
vary from one...

Display Component Recycling
Maintenance and Service Guide C–3
Perform the following steps to disassemble the display assembly:
1. Remove all screw covers 1 and screws 2 that secure the 
display bezel to the display assembly.
Removing the Display Bezel Screw Covers and Screws 

C–4 Maintenance and Service Guide
Display Component Recycling
2. Lift up and out on the left and right inside edges 1 and the 
top and bottom inside edges 2 of the display bezel until 
the bezel disengages from the display assembly.
3. Remove the display bezel 3.
Removing the Display Bezel 

Display Component Recycling
Maintenance and Service Guide C–5
4. Disconnect all LCD panel cables 1 from the display inverter 
board and remove the inverter board 2.
Removing the Display Inverter Board 

C–6 Maintenance and Service Guide
Display Component Recycling
5. Remove all screws 1 that secure the LCD panel to the 
display enclosure.
6. Remove the LCD panel 2 from the display enclosure.
Removing the LCD Panel 

Display Component Recycling
Maintenance and Service Guide C–7
7. Turn the LCD panel upside down.
8. Remove all screws that secure the LCD panel frame to the 
LCD panel.
Removing the LCD Panel Frame Screws 

C–8 Maintenance and Service Guide
Display Component Recycling
9. Use a sharp-edged tool to cut the tape 1 that secures the side 
of the LCD panel to the LCD panel frame.
10. Remove the LCD panel frame 2 from the display panel.
Removing the LCD Panel Frame 

Display Component Recycling
Maintenance and Service Guide C–9
11. Remove the screws 1 that secure the backlight cover to the 
LCD panel.
12. Lift the top edge of the backlight cover 2 and swing it 
forward.
13. Remove the backlight cover.
Removing the Backlight Cover 

C–10 Maintenance and Service Guide
Display Component Recycling
14. Turn the LCD panel right-side up.
15. Remove the backlight cables 1 from the clip 2 in the 
LCD panel.
Releasing the Backlight Cables