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18
107P2 CM 25 GSIII
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1. General
DDC Data Re-programming
In case the main EEPROM with
settings were replaced because a defect,repaired monitor' the serial
numbers have to be re-programmed.
It is advised to re-soldered the main EEPROM
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 the monitor
: Standard Version 3.0
Structure Version 1.3
2. System and equipment requirements
1.
An i486 (or above) personal computer or compatible.
2.
Microsoft operation system Windows 95/98.
3.
EDID301.EXE program (3138 106 10103) shown as Fig. 1
4.
Software DDC Alignment kits (4822 310 11184) shown as Fig. 2.
The kit contents: a. Alignment box x1
b. Printer cable
c. D-Sub cable
Note: The EDID301.EXE (Release Version 1.55) is a
windows-based program, which cannot be run in MS-DOS.
Figure 1
Diskette with EDID301.EXE
DC 8V~12V
To Monitor
Fig. 2 Alignment Kits
Back
DDC Instructions
Software DDC
which store all factory
with Software DDC
x1
x1
EDID301.EXE
Ver:1.55
Power indicator
To Printer
Video Card
Video Card
3. Pin assignment
A. 15-pin D-Sub Connector
from
The 15-pin D-sub connector (male) of the signal cable
on the 3rd row for DDC feature :
11
Assignment
Pin No.
1
Red video input
Green video input
2
Blue video input
3
4
Identification output -
Connected to pin 10
Ground
5
6
Red video ground
Green video ground
7
Blue video ground
8
1
5
10
6
15
Assignment
Pin No.
9
No pin
10
Logic ground
11
Identification output -
Connected to pin 10
12
Serial data line(SDA)
H.Sync
13
14
V.Sync(VCLK for DDC)
15
Data clock line(SCL)
Forward
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