Tuesday 15 August 2017

Philips Meridian 3 - 24 inch FHD TFT LCD monitor 3 Monitor, how to enter factory mode DDC input procedure

Philips Meridian 3 - 241P3LEB/00, 241P3LEB/69, 241P3LEB/96, 241P3LEB/75, 241P3LEB/93, 241P3LEB/27, 241P3LES/00
To access the factory mode
1). Turn off monitor.
2).[Push "EXIT" & "MENU" buttons at the same time and hold them]+[Press "power" button until comes out "Windows screen"] => then release all buttons
3).Press "MENU" button, wait until the OSD menu with Characters "MERIDIAN 241P3L V1.0 2010-12-07” (below OSD menu) come on the Screen of the monitor.
Step 1 : Access Factory Mode then enter Factory Menu.
Step 2 : By pressing " UP" and " DOWN " key to Burning Icon. Press "MENU then press " UP" and "DOWN " key to turn on Aging Mode.
Factory Menu
Cursor can move on gray color area
Hot key function: by pressing " UP " and " DOWN " key Simultaneously at User Mode (or Factory Mode) (PS: The Offset R G B function can be used on reduce or eliminate snowy noise on the background when the resolution of video signal is 1680*1050vertical 60Hz. Slightly increase or decrease the value until snowy noise completely disappear .
Flat Panel Monitors Pixel Defect PolicyĘł
Philips strives to deliver the highest quality products. We use some of the industry's most advanced manufacturing processes and practice stringent quality control. However, pixel or sub pixel defects on the TFT LCD panels used in flat panel monitors are sometimes unavoidable. No manufacturer can guarantee that all panels will be free from pixel defects, but Philips guarantees that any monitor with an unacceptable number of defects will be repaired or replaced under warranty. This notice explains the different types of pixel defects and defines acceptable defect levels for each type. In order to qualify for repair or replacement under warranty, the number of pixel defects on a TFT LCD panel must exceed these acceptable levels. For example, no more than 0.0004% of the sub pixels on a 19" XGA monitor may be defective. Furthermore, Philips sets even higher quality standards for certain types or combinations of pixel defects that are more noticeable than others. This policy is valid worldwide.
Pixels and Sub pixels
A pixel, or picture element, is composed of three sub pixels in the primary colors of red, green and blue. Many pixels together form an image. When all sub pixels of a pixel are lit, the three colored sub pixels together appear as a single white pixel. When all are dark, the three colored sub pixels together appear as a single black pixel. Other combinations of lit and dark sub pixels appear as single pixels of other colors.
Types of Pixel Defects
Pixel and sub pixel defects appear on the screen in different ways. There are two categories of pixel defects and several types of sub pixel defects within each category.
Bright Dot Defects Bright dot defects appear as pixels or sub pixels that are always lit or 'on'. That is, a bright dot is a sub-pixel that stands out on the screen when the monitor displays a dark pattern.
Black Dot Defects Black dot defects appear as pixels or sub pixels that are always dark or 'off'. That is, a dark dot is a sub-pixel that stands out on the screen when the monitor displays a light pattern.
Access Factory Mode
1). Turn off monitor.
2).
[Push "AUTO" & "MENU" buttons at the same time and hold them] +[Press "power" button until comes out "Windows screen"]  => then release all buttons
3).Press "MENU button, wait until the OSD menu with Characters " MERIDIAN 241P3L V1.0 2010-12-07”
4). Press button, then select factory mode indicator by "MENU" "LEFT" or "RIGHT" button .Press “MENU" button to bring up submenu
5.Display
Press "UP" or "DOWN" button to select . Change the value by "UP" or "DOWN" key until the X, Y co-ordinates as below
5.1 Color temperature adjustment
There are six factory preset white color 11500K, 9300K, 8200K, 7500K, 6500K, sRGB, 5000K
Align by Philips PerfecTune (also called FGA) function.
Apply full white pattern, with brightness in 100 % position and the contrast control at 50 % position.
The 1931 CIE Chromaticity (color triangle) diagram (x , y) coordinate for the screen center should be.
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, 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.
Configuration and procedure
"PI-EDID" The software is provided by IMS to upgrade the firmware of CPU.  PI-EDID Tools is for the interface between "Parallel Port of PC" and "15 pin-D-SUB connector of Monitor".
It is a windows-based program, which cannot be run in MS-DOS.
System and equipment requirements
1. An Pentium (or above) personal computer or compatible.
2. Microsoft operation system Windows 95/98/2000/XP and Port95NT.exe.
3. EDID Software "QEDID.exe"
4. ISP board as shown in Fig.
[And I2C Board Jump wire should follow J10 (short), J9 (open), J5/J6/ (1and 2 pin short) J7/J8 (1 and 2 pin short)]
5. Connect and Mains cord to Monitor as shown in Fig.
Pin assignments
15-pin D-Sub Connector
Input HDMI Connector pin
DDC Instructions
6. Setup the Philips-IMS EDID Tools program
* Open Q-EDID V030 Software into your folder.
* Press “Open File” then choose 241P3L DDC FILE.
* Load DDC file success.
* update Serial number and press enter to correct S/N number.
* Press “RUN” to write EDID and serial number.
EDID and serial number update success shown.
* Press “Read EDID” to read EDID and serial number shown as Fig.10 . and check
Serial number is the same as we set. [If not the same, please rewrite EDID S/N again.]
Serial Number Definition.


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