Ddc Instructions & Data; Pin Assignment - Philips 170C6FS/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
Analog DDC IC, & EEPROM
to be re-programmed"
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. EDID45.1.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
Note: The EDID45.EXE is a windows-based program, which cannot
be run in MS-DOS.

Pin assignment

A. 15-pin D-Sub Connector
To Printer port
DDC Instructions
".
Power
indicator
Fig. 1 Fig. 1
Re-programming Analog DDC IC
on the circuit board, main EEPROM which storage all factory settings,
OSD string. DDC IC which storage 128 byte EDID data(serial number
..etc.). Following descirptions are the connection and procedure for
Analog and main EEPROM can be re-programmed along with
Analog/Digital IC by enable factory memory data write function on
The DDC program (EDID45.1.EXE).
Following steps show you the procedures and connection.
Step 1: Connecting printer cable and D-Sub cable of monitor as Fig. 4
Fig. 2 Fig. 2
Note 1: If the connection is improper, you will see the following error
Fig. 3 Fig. 3
PIN No.
1 Red
2 Green/SOG
3 Blue
4 Sense (GND)
5 Test (GND)
6 Red GND
DC 8~12V
7 Green GND
8 Blue GND
To Monitor
D-sub cable
9 +5V
10 Sync GND
11 Sense (GND)
12 Serial data (SDA)
13 H/H+V sync
14 V-sync
15 Data clock (SCL)
There are 2 chips contained OSD string, serial number..etc
PC
To PC
To Monitor
Printer
Port
message (as shown in Fig. 8) before entering the main menu.
Meanwhile, the (read EDID) function will be disable. At this
time,please make sure all cables are connected correctly and
fixedly,
SIGNAL
Fig. 4
Fig. 8
45