Philips HP L1530R, Service Manual

Page: 19 / 84

DDC Instructions
25
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HP L2025
7
HP L2025
HP L2025
19
HP L1530
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.
DDC EDID structure
For Analog interface: Standard Version 3.0
Structure Version 1 .2
For Digital inferface: Standard Version 3.0
Structure Version 1 .3
System and equipment requirements
1 . An i486 (or above) personal computer or compatible.
2. Microsoft operation system Windows 9 5/ 9 8.
3. EDID30 1 .EXE program (3 1 38 1 06 1 0 1 03) as shown in Fig. 1
4. A/D Alignment kits (3 1 38 1 06 1 00 79 ):
inclusion : a. Alignment box x 1 (as Fig. 2)
b. Printer cable x 1
c. (D-Sub) to (D-Sub) cable x 1
d. (DVI-D) to (D-Sub) cable x 1 (as Fig. 3)
Note: The EDID30 1 .EXE (Release Version 1 .58 200008 1 8)is a
windows-based program, which cannot be run in MS-DOS.
Fig.2
Fig. 1
Fig.3
Fig.4
Diskette with EDID30 1 .EXE
(DVI-D) to (D-Sub) cable
Note: The alignment box has already build-in a batteries socket for
Using batteries ( 9 V) 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.
A/D Alignment Kits - Digital connection
Pin assignment
A. 1 5-pin D-Sub Connector
B. Input DVI -D Connector pin
Fig.5
edid46Release For writing block 4
edid46Release For writing block 4