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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, & 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 operation system Windows 95/98 .
ou have t
o Install the EDID_PORT_Tool under Win2000/XP . As
Y
Fig. 1 .
A. Copy the "UserPort.sys" to C:\WINNT\system32\drivers(win2000)
C:\WINDOWS\system32\drivers(winXP)
B. Running " io.exe" everytime, Before you start to programming
edid data .
3.
EDID45.exe program .
4.
DDC 2BI-ISP TOOL:
Inclusion :
A. DDC2BI-ISP TOOL(3138 106 10396) x1 (as Fig. 2)
B. Printer cable x1
c. (D-Sub) to (D-Sub) cable x2
D. D-SUB to DVI cable X1
Note: The EDID46.EXE is a windows-based program, which cannot
be run in MS-DOS.
To Printer port
DDC Instructions
Pin Assignment
The digital only connector contains 24 signal contacts organized in
three rows of eight contacts. Signal pin assignments are listed in the
following table:
".
DC 8~12V
Power
indicator
Fig. 1
Fig. 1
Input analog D-sub connector pin assignment
PIN No.
Fig. 2
Fig. 2
To Printer port
DC 8~12V
To Monitor
D-sub/DVI cable
To Monitor
D-sub cable
Power
indicator
Pin No.
Description
1
T.M.D.S. data2-
2
T.M.D.S. data2+
3
T.M.D.S. data2 shield
4
No Connect
5
No Connect
6
DDC clock
7
DDC data
8
No Connect
9
T.M.D.S. data1-
10
T.M.D.S. data1+
11
T.M.D.S. data1 shield
12
No Connect
13
No Connect
14
+5V Power
15
Ground (for +5V) - Cable detect
16
Hot plug detect
17
T.M.D.S. data0-
18
T.M.D.S. data0+
19
T.M.D.S. data0 shield
20
No Connect
21
No Connect
22
T.M.D.S clock shield
23
T.M.D.S. clock+
24
T.M.D.S. clock-
SIGNAL
Red video input
1
Green video input / sync on green
2
Blue video input
3
4
GND
5
GND – Cable detect
Red video GND
6
Green video GND
7
Blue video GND
8
9
DDC +3.3V or +5V
Logic GND
10
11
GND
12
Serial data line (SDA)
H-sync / H+V
13
14
V-sync
15
Data clock line (SCL)
25
190X6&170X6 LCD
Go to cover page
Fig. 3
Fig. 3
Fig. 4
Fig. 4
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