IBM 1200 Hardware Maintenance Manual page 33

3. Follow the instruction on screen to read current or to
set new LCD Panel ID code.
4. Restart computer : the new LCD should work normally.
Note: When you set a new LCD Panel ID and the new
LCD is not yet enabled (to function), connect an
external CRT to see the program execution process.
CAUTION:
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.
Note: If LCD cannot display after change ID code, make
sure you write the correct ID code, or try reseating
the LCD FPC cable connectors.
Restoring the Vital Product Data
The EEPROM on the inverter contains vital product data
(VPD). When the computer was manufactured, the
EEPROM on the inverter was loaded with the serial
numbers of the system and all major components. The
EEPROM contains the following serial numbers:
v BIOS build ID (BIOS version number)
v System board serial number
v System unit serial number
Read/Write the BIOS build ID is the function which is
provided within the ThinkPad CE Utility Diskette to prevent
the failure of writing BIOS build ID into the inverter during
BIOS update.
To Read the BIOS build ID (BIOS version number), do the
following:
1. Install the ThinkPad CE Utility Diskette and restart the
computer.
2. Select 3. VPD Data Utility from the main menu.
3. Select 1. Read VPD data and follow the descriptions
on screen to verify the BIOS build ID displayed.
To Write the BIOS build ID (BIOS version number), do the
following:
1. Install the ThinkPad CE Utility Diskette and restart the
computer.
2. Select 3. VPD Data Utility from the main menu.
3. Select 1. Write VPD data then select 1. Write Build
IDto write the BIOS build ID.
ThinkPad i Series 1200/1300
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