Philips 190B5CB/00, Service Manual

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21
190B5 LCD
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DDC Instructions
To Monitor
D-sub/DVI cable
DC 8~12V
To Printer port
Power
indicator
Fig. 3 Fig. 3
General
DDC Data Re-programming
Analog DDC IC, & EEPROM
Additional information
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"
".
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 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 (3138 106 10079):
inclusion : a. Alignment box x1 (as Fig. 2)
b. Printer cable x1
c. (D-Sub) to (D-Sub) cable x1
D. (D-Sub) to (DVI) cable x1
System and equipment requirements
ou have t
3. EDID46.EXE program .
Note: The alignment box has already build-in a batteries socket for
using 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.
batteries (8~12V)
Fig. 2 Fig. 2
Fig. 1 Fig. 1
Pin assignment
A. 15-pin D-Sub Connector
B. Input DVI -D Connector pin
PIN No. SI
G
NA
L
1 Red video input
2
G
reen video input / sync on green
3 Blue video input
4 G ND
5 G ND – Cable detect
6 Red video
G
ND
7 G reen video G ND
8 Blue video G ND
9 DDC + 3.3V or + 5V
10
L
ogic
G
ND
11 G ND
12 Serial data line (SDA)
13 H -sync / H+ V
14 V-sync
15 Data clock line (SC L )
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
G
round (for
+
5V)
–
Cable detect
16 H ot 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-