"Compaq.com - Compaq Presario Series Maintenance and Service Guide - Models: 1683, 1685, 1687, 1688, and 1690

Problem

 

Probable Cause

 

 

 

Solution(s)

This display panel has a continuous pattern across it (e.g., a "jailbars" pattern), has a single color on it, or has garbled graphics across the entire panel. This failure is for patterns across the entire panel (not just on one section).

Ghost bars extending from graphics on the display.

Improper display cable connections

Defective display cable.

Defective inverter board.

Defective system board.

Common characteristic of STN displays.

Reseat the display cable to the following until the problem is solved:

1.System board

2.Display assembly

Replace the display assembly.

Replace the display assembly.

Replace the system board.

1.Change the background colors.

2.Adjust the Contrast of the display by using Fn + F5 (¯ ) or Fn + F6 (- ).

A single line, small group of lines, or block

 

Defective display panel.

appears on the display panel. This failure

 

 

occurs in only a section of the display panel.

 

 

 

 

 

Replace the display assembly.

To perform a "self-test" on an external VGA color or monochrome monitor, complete the following steps: NOTE: The screen should be white. A narrow black border may also appear on the left and right sides of the

display. Either of these displays indicates that the monitor is working properly.

Solving Hard Drive Problems

Some common causes and solutions for hard drive problems are listed in the following table.

CAUTION: To prevent loss of information, always maintain an up-to-date backup of your hard drive at all times, in case of errors or failures.

Solving Hard Drive Problems
Problem

 

Probable Cause

 

Solution(s)

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