Compaq 17XL260 Presario NA1700XL Series Maintenance and Service Guide - Page 71

Solving Display Problems, Problem, Probable Cause, Solutions

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Presario 1700 Series Models: XL260, XL261, XL262, XL264, XL265, XL266, XL274, XL275, XL360, XL361, XL362, XL363, XL364, XL365, XL366, XL367, XL368, XL369, XL370, XL371, XL372, XL373, XL374, XL375, XL376, XL377, and XL378 Solving Display Problems (Continued) Problem Probable Cause Solution(s) The display panel has a continuous pattern across it (e.g., "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). Improper display cable connections Reseat the display cable to the following until the problem is solved: 1. System board 2. Display assembly Defective display cable. Replace the display assembly. Defective inverter board. Replace the display assembly. Defective system board. Replace the system board. A single line, small group of lines, or block appears on the display panel. This failure occurs in only a section of the display panel. Defective display panel. Replace the display assembly. Note: When you perform a "self-test" on an external VGA color or monochrome monitor, 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.

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Presario 1700 Series
Models: XL260, XL261, XL262, XL264, XL265, XL266, XL274, XL275, XL360, XL361,
XL362, XL363, XL364, XL365, XL366, XL367, XL368, XL369, XL370, XL371, XL372, XL373,
XL374, XL375, XL376, XL377, and XL378
Note:
When you perform a "self-test" on an external VGA color or monochrome monitor,
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 Display Problems (
Continued)
Problem
Probable Cause
Solution(s)
The display panel has
a continuous pattern
across it (e.g.,
³jailbars´ 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).
Improper display cable
connections
Reseat the display cable to the
following until the problem is
solved:
1.
System board
2.
Display assembly
Defective display cable.
Replace the display assembly.
Defective inverter board.
Replace the display assembly.
Defective system board.
Replace the system board.
A single line, small
group of lines, or block
appears on the display
panel. This failure
occurs in only a
section of the display
panel.
Defective display panel.
Replace the display assembly.