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202P7 CRT
23
DDC Instructions
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.
1.
An i486 (or above) personal computer or compatible.
2.
Microsoft operation system Windows 95/98 .
Y
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 .
4.
A/D Alignment kits (12NC: 3138 106 10396) shown as Fig. 2:
inclusion :
a. Alignment box x1
b. Printer cable x1
c. (D-Sub) to (D-Sub) cable x1
d. (DVI-D) to (D-Sub) cable x1
Note: The EDID46.EXE is a windows-based program, which cannot
be run in MS-DOS.
System and equipment requirements
ou have t
3.
EDID46.EXE program (12NC: 3138 106 10103) .
General
PIN No.
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 assignment
15 -pin D-Sub Connector
Configuration and procedure
There is no Hardware DDC (DDC IC) anymore. Main EEPROM stores
all factory settings and DDC data (EDID code) which is also called
Software DDC. The following section describes the connection and
procedure for Software DDC application. The main EEPROM can be re-
programmed by enabling '' factory memory data write'' function on the
DDC program (EDID46.EXE).
Initialize alignment box
In order to avoid that monitor entering power saving mode due
to sync will cut off by alignment box, it is necessary to initialize
alignment box before running programming software
(EDID46.EXE). Following steps show you the procedures and
connection.
Step 1: Supply 8-12V DC power source to the Alignment box by
plugging a DC power cord .
Step 2: Connecting printer cable and D-Sub cable of monitor as Fig. 3
Fig. 3
PC
1=Power connector
2=D-SUB connector
~
~
T
o
printer
port
(L
TP1)
DC Power
8-12 V
Printer
Port
To
Monitor
To PC
1
2
----->
----->
Fig. 2
Fig. 1
Содержание 202P70/00
Страница 37: ...37 202P7 CRT Go to cover page Wiring Diagram ...
Страница 40: ...40 Main Schematic Diagram Go to cover page 202P7 CRT C1 224V C2 C3 224V C4 C5 C6 C7 C8 C9 C13 C12 C11 C10 101V ...
Страница 41: ...41 202P7 CRT Go to cover page Main Board C B A 1 ...
Страница 42: ...42 Main Board C B A 2 Go to cover page 202P7 CRT ...
Страница 44: ...44 Go to cover page Video Board C B A 1 202P7 CRT ...
Страница 45: ...45 202P7 CRT Go to cover page Video Board C B A 2 ...
Страница 47: ...47 202P7 CRT Go to cover page TERMINAL Board C B A 1 ...
Страница 48: ...48 TERMINAL Board C B A 2 Go to cover page 202P7 CRT ...
Страница 50: ...50 Driver Board C B A Go to cover page 202P7 CRT ...
Страница 51: ...51 202P7 CRT Go to cover page KEY CONTROL Schematic Diagram C B A ...
Страница 52: ...52 MHR Schematic Diagram C B A Go to cover page 202P7 CRT ...