Acer Extensa 900 Maintenance Manual

                                                                                           Troubleshooting Procedures    5-9  
failures are associated with the Upper and Lower Electronics Boards and may require 
board removal/replacement.
Try running PC-Doctor (Paragraph 5.5) if possible to verify the source of problem.
5.3.4 Run-Time Error Messages
In the event of a hardware/software error that occurs after completion of POST, the 
error messages listed and described in Table 5-4 may occur.Table 5-3...

5-10   Troubleshooting Procedures
Table 5-4  Run-Time Error Message Troubleshooting
5.3.5 PCMCIA Modem Problems
If an optional PCMCIA modem does not work properly, check the following items:
¨Dialing problem or wrong number - Try dialing a number that you have 
previously dialed successfully.
¨Faulty phone line - Connect a telephone to the line and listen for a dial tone.
¨Software program - Check to ensure that you have installed the software 
correctly.
5.4 General Fault Isolation Procedures 
If...

                                                                                           Troubleshooting Procedures    5-11  
Table 5-5  General Troubleshooting Procedures
Problem Corrective Actions
No power 1.  Check that the AC adapter is plugged into
the power connector of the system. Also,
check that the AC adapter is plugged into a
properly grounded AC power outlet.
2.  If using the battery as main power source,
check if the battery pack is of the right type,
charged, and is inserted correctly.
3....

5-12   Troubleshooting Procedures
Table 5-5  General Troubleshooting Procedures (continued)
LCD screen does not show data 1.  Check the LCD Status Bar if Suspend mode is
activated.  Press any key or press the power
button to resume operation and display.
2.  Check if LCD cables are disconnected or loose.
3.  Check if the display output is switched to the
external monitor.
4.  Verify that the Contrast level is set to minimum.
5.  Check if there is power.
6.  Replace the LCD Inverter board found inside...

                                                                                           Troubleshooting Procedures    5-13  
Table 5-5  General Troubleshooting Procedures (continued)
Memory malfunction 1.  Check if the memory module is inserted properly.
2.  Replace the memory module.
3.  Replace the motherboard.
External keyboard or PS/2 mouse doesn’t
work1.  Check if the keyboard or the mouse are
connected properly. Check if the Y-cable is being
used.  Power off system first before plugging in
the...

5-14   Troubleshooting Procedures
5.5 Fault Isolation Using Diagnostics
PC-Doctor, supplied with the Extensa Series Notebooks, is a powerful diagnostics tool 
that can help you determine the hardware configuration of a local or remote system, 
benchmark its performance, analyze the performance of all subsystems, and perform 
a suite of interactive and non-interactive tests on attached devices (such as printers, 
joystick devices, VGA monitors, SCSI
® devices, CD-ROM drives). The test results are 
stored...

                                                                                           Troubleshooting Procedures    5-15  
5.5.2 Supporting Online Documentation
The PC-Doctor Diagnostic contains the following online information sources:
¨Online Technical Manual - Selected at any time by pressing F1 key twice or 
by clicking on the Question Mark in the upper left hand corner of any 
PC-Doctor Menu
¨On-line Help system - Provides context sensitive information from every 
PC-Doctor screen- accessed by...

   Field Service   6-1
6
Field Service
6.1 Introduction
This section contains general  preventive and corrective maintenance procedures that 
apply to all members of the Extensa 900 Notebook family. The first part of the section 
describes the computer cleaning procedures and preferred handling procedures for 
sensitive components (e.g., disk drives, batteries).
The second part of the section identifies all field-replaceable parts; the remainder of the 
section contains removal and replacement procedures...

6-2   Field Service 
6.2.2   Handling the Computer
The notebook computer requires reasonable care and handling for extended life. Some 
of the precautions to follow to protect your computer against accidental damage include:
¨Never pick up or carry the unit by the cover
¨Do not force the cover beyond its fully opened position (about 180 degrees)
¨Never subject the computer to harsh environments (dusty areas or areas of 
rapidly changing temperatures)
¨Never place anything on top of the computer,...