System Utility Diskette; Set Lcd Panel Id; Set Thermal Sensor Threshold - Acer Extensa 500 Service Manual

System Utility Diskette

1. This utility diskette is for the Acer Extensa 500 notebook machine. It
provides the following functions:
2. Read/write LCD panel ID

3. Set thermal sensor threshold

4. Verify thermal sensor threshold (by testing fan function)
To use this diskette, first boot from this diskette, then a "Microsoft Windows
95 Startup Menu" prompt you to choose the testing item. Follow the
instructions on screen to proceed.
Important!! This diskette is not bootable, do the following actions before you
use it:
1. Do system transfers.
2. Copy HIMEM.SYS to A:\.
3. Copy HIMEM.COM to A:\.

Set LCD Panel ID

There is an EEPROM in the inverter which stores its supported LCD type ID
code. If you replace a LCD with one of a different brand or use a new inverter,
the ID information in the inverter EEPROM should be updated.
Follow the steps blew to see the LCD Panel ID:
1. Follow the instruction on screen to read current or to set new LCD Panel
ID code.
Note: When you set a new LCD Panel ID and the new LCD is not yet
enabled (to function), so connect an external CRT to see the
program execution process.
Note: Make sure the new ID code you choose corresponds with the
LCD brand and type. If you write a wrong ID into inverter, just
reboot and re-execute the program and input the correct ID code.
2. Restart computer - the new LCD should work normally.
Note: If LCD cannot display after change ID code, make sure you write
the correct ID code, or try reconnecting the LCD FPC cable
connectors.
Set Thermal Sensor Threshold
The system is equipped with sensors to protect against system overheating.
By setting System and processor thermal thresholds, the system can turn on
the cooling fan or shut down automatically when temperatures reach the
defined threshold parameters.
Chapter 2
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