Table of Contents
Advertisement
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 operation system Windows 95/98 .
Y
ou have t
o Install the EDID_PORT_Tool under Win2000/XP . As
Fig. 1 .
A. Cody 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.
EDID46.EXE program
4.
A/D Alignment kits (12NC: 3138 106 10396):
inclusion :
a. Alignment box x1 (Fig. 2)
b. Printer cable x1
c. (D-Sub) to (D-Sub) cable x1
D. (D-Sub) to (DVI) cable x1
DDC Instructions
Note: The alignment box has already build-in a batteries socket for
using batteries (8~12V) 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
Fig. 1
Pin assignment
A. 15-pin D-Sub Connector
PIN No.
B. Input DVI -D Connector pin
Fig. 2
To Printer port
DC 8~12V
To Monitor
D-sub/DVI cable
Power
indicator
SIGNAL
1
Red video input
2
Green video input / sync on green
3
Blue video input
4
GND
5
GND - Cable detect
6
Red video GND
7
Green video GND
8
Blue video GND
9
DDC +3.3V or +5V
10
Logic GND
11
GND
12
Serial data line (SDA)
13
H-sync / H+V
14
V-sync
15
Data clock line (SCL)
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-
BDL3221 LCD/TV
27
Go to cover page
Fig. 3
Advertisement
Table of Contents
Troubleshooting
