Symptom
Display
Dark display, no light.
White display.
Erratic display.
Bright or missing pixels or lines.
Punctured display.
Vertical crack near center of display.
Scratched display glass.
Local area of dark or light discoloration visible when display is on.
Call Center: | Repair Center: | Repair Center: |
Suggestions | Likely Causes | Comments |
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Make sure notebook is | Display cable | Check cable connections. |
turned on and warmed up. | connection. | Replace SDRAM modules. |
Check power supply. | SDRAM modules. | Replace CPU module. |
Adjust display brightness. | CPU module. | Replace display assembly. |
Press Fn+F5 several times. | Display assembly. | If external monitor displays |
Make sure SDRAM modules | Motherboard. | no image, replace |
are installed properly. |
| motherboard. |
Make sure display cables are |
|
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properly connected. |
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Make sure CPU module is |
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installed properly. |
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Try external monitor. |
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Adjust display brightness. | Display assembly. |
|
| Display cable | Check display cable |
| connection. | connection. |
| Display assembly. |
|
| Motherboard. |
|
See quality statement on | Display cable | Check display cable |
page | connection. | connection. |
| Display assembly. | See quality statement on |
|
| page |
|
| Declared to be caused by |
|
| customer abuse. |
| Usually caused by | Declared to be caused by |
| closing display with | customer abuse. |
|
| |
| on keyboard. |
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|
| Declared to be caused by |
|
| customer abuse. |
| Caused by excessive | Declared to be caused by |
| pressure applied to | customer abuse. |
| area on screen. |
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External display does not work.
Display difficult to read or part of desktop not visible.
Cannot switch to TV display by pressing Fn+F5
Check connections.
Press Fn+F5 several times.
Try display on another computer.
Check display resolution (default is 1024 × 768).
Use HP Desktop Zoom to adjust size of desktop icons and labels.
Fn+F5 switches only between internal LCD and external display connected to VGA port, and will not switch to TV display connected to TV output port.
External display. Motherboard.
HP Pavilion zt1100/xz100 Omnibook xt1000 | Troubleshooting and Diagnostics |