Table of Contents
Advertisement
20
HP L1502 LCD
Go to cover page
General
DDC Data Re-programming
In case the DDC data memory IC or main EEPROM which storage all
factory settings were replaced due to a defect, the serial numbers have
to be re-programmed" Analog DDC IC, Digital DDC IC & EEPROM".
It is advised to re-soldered DDC IC and main EEPROM from the old
board onto the new board if circuit board have been replaced, in this
case the DDC data does not need to be re-programmed.
Additional information
Additional information about DDC (Display Data Channel) may be
obtained from Video Electronics Standards Association (VESA).
Extended Display Identification Data(EDID) information may be also
obtained from VESA.
System and equipment requirements
1. An i486 (or above) personal computer or compatible.
2. Microsoft oper ation system Windows 95/98.
You have to install the EDID-PORT-TOOL under win2000/NT as Fig.1
A. Cody the "UserPort.sys" to C:\WINNT\system32\drivers(win2000)
B. Running " io.exe" everytime, Before you start to programming
edid data .
3 EDID 45.EXE PROGRAM
4. A/D Alignment kits (3138 106 10079):
inclusion : a. Alignment box x1 (as Fig. 2)
b. Printer cable x1
c. (D-Sub) to (D-Sub) cable x1
Note: The EDID45.EXE is a windows-based program, which cannot
be run in MS-DOS.
DDC Instructions
Note: The alignment box has already build-in a batteries socket for
Using batteries (9V) as power source. Pull out the socket by
remove four screws at the rear of box. Please do not forget that
remove batteries after programming. The energy of batteries can
only drive circuits for a short period of time.
Fig.1
Pin assignment
A. 15-pin D-Sub Connector
Fig.2
Fig.3
Advertisement
Table of Contents
