Ddc Instructions; Ddc Data - Philips 170X7FB/00 Service Manual

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 .
Y ou have t o Install the EDID_PORT_Tool under Win2000/XP . As
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
Power Pin No.
indicator
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Fig. 1 Fig. 1
19
20
21
22
23
24
Input analog D-sub connector pin assignment
PIN No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Fig. 2 Fig. 2
190X7&170X7 LCD
To Printer port
DC 8~12V
To Monitor
D-sub/DVI cable
To Monitor
D-sub cable
Description
T.M.D.S. data2-
T.M.D.S. data2+
T.M.D.S. data2 shield
No Connect
No Connect
DDC clock

DDC data

No Connect
T.M.D.S. data1-
T.M.D.S. data1+
T.M.D.S. data1 shield
No Connect
No Connect
+5V Power
Ground (for +5V) - Cable detect
Hot plug detect
T.M.D.S. data0-
T.M.D.S. data0+
T.M.D.S. data0 shield
No Connect
No Connect
T.M.D.S clock shield
T.M.D.S. clock+
T.M.D.S. clock-
SIGNAL
Red video input
Green video input / sync on green
Blue video input
GND
GND--Cable detect
Red video GND
Green video GND
Blue video GND
DDC +3.3V or +5V
Logic GND
GND
Serial data line (SDA)
H-sync / H+V
V-sync
Data clock line (SCL)
27
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Fig. 3 Fig. 3
Fig. 4 Fig. 4