IBM 2621421 Hardware Maintenance Manual - Page 144

Maintenance Program Diskette, Running the Maintenance Program, Diskette, Setting the LCD Panel ID

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2. Press the up and down arrow keys to move in a selected menu; then press Enter to enable the highlighted option. Note: You can press F1 for help. Maintenance Program Diskette The Maintenance Program Diskette (P/N: 09N1025) provides the three following functions: "Setting the LCD Panel ID" "Setting the Thermal Sensor" on page 137 "Writing the VPD Data" on page 137 Running the Maintenance Program Diskette: To run the Maintenance Program Diskette: 1. Shutdown the computer. 2. Insert the Maintenance Program Diskette into the diskette drive. 3. Turn on the computer. 4. Select the item you want to run while the PC-DOS Startup Menu is shown on the screen: LCD Panel ID Utility Thermal Sensor Utility VPD Data Utility 5. Press Enter and follow the instructions on the screen. Setting the LCD Panel ID: There is an EEPROM in the inverter, which store its supported LCD type and ID code. If you replace the LCD with one of a different brand, the ID information in the inverter EEPROM should be updated. Follow the steps below to set the LCD inverter ID: 1. Boot from the Maintenance Program Diskette. 2. Select Panel ID Diagnostic from PC DOS 7.0 Startup Menu. 3. Follow the instructions on the screen to read the current ID Code or to set a new inverter ID code. Note: When you set a new inverter ID and the new LCD is not yet enabled (to function), connect an external CRT to see the program execution process. Attention: Make sure that the new ID code you choose corresponds to the LCD brand and type. If you write a wrong ID into the inverter, just reboot and re-execute the program and input the correct ID code. 4. Restart the computer - the new LCD should work normally. 136 ThinkPad i Series 1400 HMM

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2.
Press the
up and down arrow keys
to move in a
selected menu; then press
Enter
to enable the high-
lighted option.
Note:
You can press
F1
for help.
Maintenance Program Diskette
The Maintenance Program Diskette (P/N: 09N1025) pro-
vides the three following functions:
±
“Setting the LCD Panel ID”
±
“Setting the Thermal Sensor” on page
137
±
“Writing the VPD Data” on page
137
Running the Maintenance Program
Diskette:
To run the Maintenance Program Diskette:
1.
Shutdown the computer.
2.
Insert the Maintenance Program Diskette into the
diskette drive.
3.
Turn on the computer.
4.
Select the item you want to run while the PC-DOS
Startup Menu is shown on the screen:
±
LCD Panel ID Utility
±
Thermal Sensor Utility
±
VPD Data Utility
5.
Press
Enter
and follow the instructions on the screen.
Setting the LCD Panel ID:
There is an EEPROM
in the inverter, which store its supported LCD type and ID
code. If you replace the LCD with one of a different brand,
the ID information in the inverter EEPROM should be
updated.
Follow the steps below to set the LCD inverter ID:
1.
Boot from the Maintenance Program Diskette.
2.
Select Panel ID Diagnostic from PC DOS 7.0 Startup
Menu.
3.
Follow the instructions on the screen to read the
current ID Code or to set a new inverter ID code.
Note:
When you set a new inverter ID and the new
LCD is not yet enabled (to function), connect
an external CRT to see the program execution
process.
Attention:
Make sure that the new ID code you
choose corresponds to the LCD brand and type. If
you write a wrong ID into the inverter, just reboot and
re-execute the program and input the correct ID code.
4.
Restart the computer — the new LCD should work
normally.
136
ThinkPad i Series 1400 HMM