Presario 1600XL Series

Model 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143, 1600-XL144,

1600-XL146, 1600-XL147, 1600-XL150 XL156, XL157, XL255, XL256, XL257, and XL258

Solving Display Problems

Problem

 

Probable Cause

 

Solution(s)

Screen is dim.

 

Brightness Control

 

Adjust the Brightness of the

 

 

(if available) is not set

 

display by pressing Fn+F7 or

 

 

properly.

 

Fn+F8.

 

 

 

 

 

 

 

Computer screen is in direct

 

Tilt display or move computer.

 

 

light.

 

 

 

 

 

 

 

Screen is blank.

 

Screen save was initiated by

 

Press any key or touch the

 

 

Power Management due to

 

TouchPad.

 

 

lack of user activity.

 

 

 

 

 

 

 

 

 

Display has overheated.

 

If the Notebook is in direct

 

 

 

 

sunlight, move it and allow it to

 

 

 

 

cool off.

 

 

 

 

 

Display is blank and

 

System is in Suspend mode.

 

Press any key or touch the

the Suspend icon is

 

 

 

TouchPad.

flashing.

 

 

 

 

 

 

 

 

 

Internal display is

 

Display function was switched

 

Press Fn+F3 to switch between

blank and the screen

 

to the external monitor.

 

LCD or CRT.

on an external monitor

 

 

 

 

displays information.

 

 

 

 

 

 

 

 

 

Internal display

 

Using 1024 x 768 or higher

 

Restart the Notebook.

flashes or has garbled

 

resolution on external monitor

 

 

characters when

 

and toggling back to internal

 

 

Notebook is connected

 

display, which supports up to

 

 

to external monitor.

 

800 x 600.

 

 

 

 

 

 

 

The light tubes on the

 

Improper backlight or display

 

Replace the display assembly.

edge of the display

 

cable connections

 

 

panel do not light up

 

 

 

 

at all and the Power-

 

 

 

 

On Self-Test (POST)

 

 

 

 

completes when the

 

 

 

 

unit is powered up.**

 

 

 

 

 

 

 

 

 

 

 

Defective inverter board.

 

Replace the display assembly.

 

 

 

 

 

 

 

Defective display cable.

 

Replace the display assembly.

 

 

 

 

 

 

 

Defective display panel.

 

Replace the display assembly.

 

 

 

 

 

 

 

Defective system board.

 

Replace the system board.

 

 

 

 

 

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1600XL SERIES

TROUBLESHOOTING 27

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Image 75
Compaq 1600XL specifications Solving Display Problems Probable Cause Solutions, Fn+F8