Compaq 12XL325 Presario 1200 Series Models XL101-XL113, XL115, XL118-XL127 - M - Page 66

Fn+F3, Solving Display Problems, Problem, Probable Cause, Solutions, with Fn+F7 or Fn+F8.

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Presario 1200 Series Models: XL101-XL113, XL115, XL118-XL127 Problem Display is blank and the Suspend icon is flashing. Internal display is blank and the screen on an external monitor displays information. Internal display flashes or has garbled characters when notebook is connected to external monitor. The light tubes on the edge of the display panel do no light up at all and the Power-On Self-Test (POST) completes when the unit is powered up.** The light tubes on the edge of the display panel do not light up at all and Power-On Self-Test (POST) does not complete when the unit is powered up.** Backlight (brightness) cannot be adjusted with Fn+F7 or Fn+F8. Solving Display Problems Probable Cause Solution(s) Display has overheated. If the notebook is in direct sunlight, move it and allow it to cool off. System is in Suspend mode. Press any key or touch the TouchPad. Display function was switched Use Fn+F3 to switch between to the external monitor. LCD or CRT. Using 1024 x 768 or higher resolution on external monitor and have toggled back to internal display, which supports up to 800 x 600. Improper backlight or display cable connections Restart the notebook. Replace the display assembly. Defective inverter board. Defective display cable. Defective display panel. Defective system board. Defective system board. Replace the display assembly. Replace the display assembly. Replace the display assembly. Replace the system board. Replace the system board. Improper display cable connections. 1. Reseat the display cable to the system board. 2. Replace the display assembly. 24 TROUBLESHOOTING PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES

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24 T
ROUBLESHOOTING
P
RESARIO
N
OTEBOOK
M
AINTENANCE
AND
S
ERVICE
G
UIDE
1200XL S
ERIES
Presario 1200 Series
Models: XL101-XL113, XL115, XL118-XL127
Display has overheated.
If the notebook is in direct
sunlight, move it and allow it to
cool off.
Display is blank and
the Suspend icon is
flashing.
System is in Suspend mode.
Press any key or touch the
TouchPad.
Internal display is
blank and the screen
on an external monitor
displays information.
Display function was switched
to the external monitor.
Use
Fn+F3
to switch between
LCD or CRT.
Internal display
flashes or has garbled
characters when
notebook is connected
to external monitor.
Using 1024 x 768 or higher
resolution on external monitor
and have toggled back to
internal display, which
supports up to 800 x 600.
Restart the notebook.
The light tubes on the
edge of the display
panel do no light up at
all and the Power-On
Self-Test (POST)
completes when the
unit is powered up.**
Improper backlight or display
cable connections
Replace the display assembly.
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.
The light tubes on the
edge of the display
panel do not light up
at all and Power-On
Self-Test (POST) does
not complete when the
unit is powered up.**
Defective system board.
Replace the system board.
Backlight (brightness)
cannot be adjusted
with Fn+F7 or Fn+F8.
Improper display cable
connections.
1. Reseat the display cable to the
system board.
2. Replace the display assembly.
Solving Display Problems
Problem
Probable Cause
Solution(s)