Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
| Display |
| |
Problem | Probable Cause | Solution(s) | |
|
|
|
| Display has overheated. |
|
|
Display is blank and | System is in Standby mode. |
the Standby é icon is |
|
flashing. |
|
|
|
Notebook display is | Display function was switched |
blank and the screen | to the external monitor. |
on an external monitor |
|
displays information. |
|
|
|
Notebook display | The external monitor is set for |
flashes or has garbled | 1024 x 768 or higher |
characters when | resolution and view is toggled |
Notebook is connected | back to the Notebook display, |
to external monitor. | which supports up to |
| 800 x 600. |
|
|
The light tubes on the | Improper backlight or display |
edge of the display | cable connections. |
panel do not light up at |
|
all and the |
|
| |
completes on |
|
startup.** |
|
|
|
| Defective inverter board. |
|
|
| Defective display cable. |
|
|
| Defective display panel. |
|
|
| Defective system board. |
|
|
The light tubes on the | Defective system board. |
edge of the display |
|
panel do not light up at |
|
all and the |
|
| |
complete on startup.** |
|
|
|
Turn off the Notebook, and if necessary move it out of direct sunlight to allow it to cool.
Press any key or touch the TouchPad.
Press Fn+F3 to switch between the external monitor and the Notebook display (you may have to press more than once).
Restart the Notebook.
1.Check the display cable connections and retest.
2.Replace the display assembly.
Replace the display assembly.
Replace the display assembly.
Replace the display assembly.
Replace the system board.
Replace the system board.
**The backlight or its power circuitry has failed. If the backlight is not functioning, the POST result cannot be observed. Connect the unit to an external monitor before restarting the unit. If an external monitor is not available verify that POST is complete by opening and closing the display, listening for the single or double beep, and watching for the icons to turn on at the front of the Notebook.
24 TROUBLESHOOTING | PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1800 SERIES |
