HP Pavilion Dv9400 Entertainment Notebook Pc Series Service Guide

Display Component Recycling
Maintenance and Service Guide C–11
16. Turn the LCD panel upside down.
17. Remove the backlight frame from the LCD panel.
Removing the Backlight Frame 

C–12 Maintenance and Service Guide
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.
18. Slide the backlight out of the backlight frame.
Removing the Backlight 

Display Component Recycling
Maintenance and Service Guide C–13
19. Disconnect the display cable 1 from the LCD panel.
20. Remove the screws 2 that secure the LCD panel to the LCD 
rear panel.
21. Release the LCD panel 3 from the LCD rear panel.
22. Release the tape 4 that secures the LCD panel to the LCD 
rear panel.
Releasing the LCD Panel 

C–14 Maintenance and Service Guide
Display Component Recycling
23. Remove the LCD panel.
Removing the LCD Panel
24. Recycle the backlight and LCD panel. 

Maintenance and Service Guide D–1
D
Connector Pin Assignments
Ta b l e  E - 1
Universal Serial Bus
Pin Signal Pin Signal
1 +5 VDC 3 Data +
2 Data – 4 Ground 

D–2 Maintenance and Service Guide
Connector Pin Assignments
Ta b l e  E - 2
RJ-45 (Network)
Pin Signal Pin Signal
1 Transmit + 5 Unused
2 Transmit – 6 Receive –
3 Receive + 7 Unused
4 Unused 8 Unused 

Connector Pin Assignments
Maintenance and Service Guide D–3
Ta b l e  E - 3
S-Video-Out
Pin Signal Pin Signal
1 TV-Ground 5 TV-CD
2 TV-CVBS 6 TV-Ground
3 TV-Ground 7 TV-YD
4 TV-Ground 

D–4 Maintenance and Service Guide
Connector Pin Assignments
Ta b l e  E - 4
External Monitor
Pin Signal Pin Signal
1 Red analog 9 +5 VDC
2 Green analog 10 Ground
3 Blue analog 11 Monitor detect
4 Not connected 12 DDC 2B data
5 Ground 13 Horizontal sync
6 Ground analog 14 Vertical sync
7 Ground analog 15 DDC 2B clock
8 Ground analog 

Connector Pin Assignments
Maintenance and Service Guide D–5
Ta b l e  E - 5
RJ-11 (Modem)
Pin Signal Pin Signal
1 Unused 4 Unused
2 Tip 5 Unused
3 Ring 6 Unused 

D–6 Maintenance and Service Guide
Connector Pin Assignments
Ta b l e  E - 6
Audio-In (Microphone)
Pin Signal Pin Signal
1 Audio signal in 3 Ground
2 Audio signal in
Ta b l e  E - 7
Audio-Out (Headphone)
Pin Signal Pin Signal
1 Audio out, left channel 3 Ground
2 Audio out, right channel