The built-in self test program and the disk resident diagnostics program (PC-Doctor) are useful tools in computer troubleshooting. However, if the computer has a power, keyboard or display problem, you first solve this problem before running diagnostics. If the computer powers up and displays messages on the LCD or emits a series of beeps, skip to Paragraph 5.3.3 for further instructions.
If the computer does not power up when the Power Switch is set to the ON position, you most likely have a malfunction in the power subsystem (loss of power at the AC Outlet, faulty AC Adapter, discharged Battery Pack, or faulty Power Supply Board). With a power problem, the status screen and the LCD are both blank, and no drive activity can be heard. The computer is unable to load software and displays no visible signs of activity.
PCMCIA Option Slot(s)
PCMCIA Adapter UM8365A
SYSTEM & SVGA BIOS
SIMM Memory 1
^^ Expansion . Modules
Super I/O Controller
Expansion Bus Connector
INTERNAL 1.44 MB FLOPPY DISK DRIVE
PARALLEL PRINTER PORT
IR/Audio Board a
EXTERNAL SVGA MONITOR
Audio IN/OUT Mic In
Input From AC Adapter
EXTERNAL SVGA MONITOR
INTERNAL LCD DISPLAY 640 X 480 SVGA LCD
INTERNAL LCD DISPLAY 640 X 480 SVGA LCD
Figure 5-2 Troubleshooting Block Diagram
If the LCD remains blank when you turn on the computer, and the status ICONs light on the Status display panel above the keyboard, check the following controls on the display:
5.3.3 Fault Isolation Using Self Test
When the computer is first powered up, it automatically performs a self test of its central hardware and memory functions. During self test (which lasts for a few seconds), the display shows copyright and version number information.
Note: Some procedures in this paragraph require you to use keystroke sequences, such as Ctrl-Alt-Del. To execute a keystroke sequence such as this, you must press all three keys simultaneously.
Upon successful completion of the self test, the computer automatically loads its operating system and other built-in utilities. If the self test fails to complete successfully, the display shows one of the error messages described in Appendix A.
5.3.4 PCMCIA Modem Problems
5.3.5 Fault Isolation Using Diagnostics
PC-Doctor supplied with the Extensa Series Notebooks is a powerful diagnostics tool that can help you scan an internal RAM system for viruses, 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. The test results are stored in a log which can be printed out (by pressing F2) or saved in a disk file (by pressing F3).
Features of the diagnostic program are accessed through a series of pull-down menus and basic keyboard keys (cursor keys to move highlighted pointer, Enter key to select a highlighted feature, Esc key to cancel a function and move back one level. PC-Doctor is typically user friendly but if you don't understand a feature, context-sensitive help information is available at any time by pressing the F1 function key; pressing the F1 function key twice accesses the online Technical Reference Manual for PC-Doctor.
A powerful set of utilities within PC-Doctor (that can be run locally or remotely) simplify the task of determining system configuration data, allocating and using system memory, IRQ and DMA use, what device drivers are installed, what COM and LPT ports are assigned and what ports are available, identifying partitioning data for fixed disk drive(s), determining the SVGA setup information, reading the software interrupts/interrupt vectors, etc.
The PC-Doctor diagnostic program contains a group of nine non-Interactive diagnostics, available from the Diagnostics heading in the main menu, that permits testing various hardware sections without operator input. You can select one, several, or all tests from the Diagnostics menu. These tests are non-destructive; the serial and parallel port tests require disconnecting external devices from your notebook and installing loopback plugs. The Non-Interactive test categories include:
The PC-Doctor diagnostic test includes a suite of seven Interactive tests that require operator input during the course of the test. The Interactive Tests category includes:
Supporting Online documentation
18.104.22.168 User Interface to PC-Doctor
PC-Doctor is structured as a text mode, window user interface with pull-down menus. Program operation requires the use of the following keys:
You can also use the mouse or glidepad to interact with PC-Doctor. The leftmost Select key is used to choose objects (menu entries and action codes typically enclosed in brackets). The rightmost Select key is equivalent to the Esc key which takes you back to your previous step.
22.214.171.124 Creating a Bootable Floppy Diskette
Prior to using PC-Doctor, create a bootable floppy diskette using the following procedure:
1 . Power up the unit; when unit displays message, "Starting
After completion of this procedure, you should have a bootable diskette containing PC-Doctor.
126.96.36.199 Running PC-Doctor
PC-Doctor is a DOS-resident program that can be run from either hard disk or from the bootable diskette you previously created.
Note: There are a number of command-line switches that can be entered when starting up PC-Doctor to enable automatic virus scanning, enable loopback testing of serial/parallel ports, work from the remote menu if performing remote operations, etc. To get a listing of the available command-line switches, startup PC-Doctor with the following command: PCDR /? and press Enter.
Note: If PC-Doctor detects a virus, it will stop with an error message. You must then use one of the standard virus detection and removal programs to remove the virus.
188.8.131.52 Quitting PC-Doctor
To exit PC-Doctor, select the Quit pull down menu and then select the Quit to DOS option.
Note: For additional information, press F1 twice to access the online Reference manual for PC-Doctor.
Was this article helpful?
You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.