REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

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All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Wednesday, 30 January 2019

PHILIPS MERIDIAN-5 CHASSIS - 223V5LSB-00 - 21.5 INCH LCD COLOR MONITOR FACTORY MODE, EDID DATA AND OTHER ADJUSTMENTS

Philips Meridian-5 chassis - 223V5LSB-00 - 21.5 inch LCD color monitor Factory mode, EDID data and other adjustments


Applicable to - 223V5LSB/00, 223V5LSB/01, 223V5LSB/27, 223V5LSB/62, 223V5LSB/74, 223V5LSB/75, 223V5LSB/86, 223V5LSB/93, 223V5LSB/94
223V5LSB2/00, 223V5LSB2/10, 223V5LSB2/57, 223V5LSB2/62, 223V5LSB2/69, 223V5LSB2/71, 223V5LSB2/93, 223V5LSB2/96, 223V5BSB2/93
223V5LHSB/00, 223V5LHSB/01, 223V5LHSB/11, 223V5LHSB/27, 223V5LHSB/69, 223V5LHSB/70, 223V5LHSW/11, 223V5LHSB2/57
Burn-in/Ghost image
Always activate a moving screen saver program when you leave your monitor unattended. Always activate a periodic screen refresh application if your monitor will display unchanging static content. Uninterrupted display of still or static images over an extended period may cause “burn in”, also known as “after-imaging” or “ghost imaging”, on your screen. "Burn-in", "after-imaging", or "ghost imaging" is a well-known phenomenon in LCD panel technology. In most cases, the “burned in” or “after-imaging” or “ghost imaging” will disappear gradually
over a period of time after the power has been switched off.
Failure to activate a screen saver, or a periodic screen refresh application may result in severe ” burn-in” or “after-image” or “ghost image” symptoms will not disappear and cannot be repaired. The damage mentioned above is not covered under your warranty
If you have VESA DPM compliance display card or software installed in your PC, the monitor can automatically reduce its power consumption when not in use. If an input from a keyboard, mouse or other input device is detected, the monitor will 'wake up' automatically. The following table shows the power consumption and signaling of this automatic power saving feature:
Pixel Defect
Philips strives to deliver the highest quality products.  Philips use some of the industry's most advanced manufacturing processes and practice stringent quality control. However, pixel or sub pixel defects on the TFT Monitor 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 Monitor panel must exceed these acceptable levels. For example, no more than 0.0004% of the sub pixels on a 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 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. There are the types of bright dot defects.
A red or blue bright dot must be more than 50 percent brighter than neighboring dots while a green bright dot is 30 percent brighter than neighboring dots.
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. These are the types of black dot defects.
Proximity of Pixel Defects
Because pixel and sub pixels defects of the same type that are near to one another may be more noticeable, Philips also specifies tolerances for the proximity of pixel defects.
Failure Mode Of Panel
Quick reference for failure mode of LCD panel
Presents problems that could be made by LCD panel. It is not necessary to repair circuit board. Simply follow the mechanical instruction on this manual to eliminate failure by replace LCD panel.
Click on the pictures to zoom in
How to enter into the factory mode:
1. Connect the VGA source and power off the monitor
2. Press < and the OK button at the same time, and Power ON the monitor, and then press the Menu again.  The Menu will appear on the top left corner.
{If you see this post by Web version, or by a desktop; you can see the 2nd step of Factory mode entry procedure illustrated here clearly}
3. Select the “Factory” and press the “MENU” button to enter the factory mode
White Balance, Luminance Adjustment
Apparatuses and program: analyzer CA-210, PC, tool, FGA adjustment program (PHILIPS LEDFGA.DDCI), Pattern generator.
Equipment installation:
a. Connect analyzer CA-210 to PC by USB connector, install drive program CA-SDK Ver4.00 for CA-210 and restart PC after finish installing
b. Install Port95NT drive program, set PC printer connector mode as ECP mode and reset PC after finish installing.
c. Connect tool as follow:
Note: It’s not necessary to connect Port2
Adjustment
Preparation before adjustment:
a. Monitor should be warmed up for more than half an hour.
b. Make sure that the tools are connected right and drive programs have been installed OK.
Adjustment process:
a. Press the power of CA-210, shut off the lens, press 0-Cal and open the lens after analyzer reset.
b. Open white balance adjustment program, select the right parameter according with the program and click OK.
c. Make sure that the lens of CA-210 aims at the center of the screen, then click START to adjust.
d. After finish adjusting, the adjustment program displays pass, and the START button changes for NEXT, which means that you can adjust another monitor.
DDC Instruction
take the 273E3 for example
General
DDC Data Re-programming
In case the main EEPROM with Software DDC which store all factory settings were replaced because a defect repaired monitor’ the serial numbers have to be re-programmed.
It is advised to re- soldered the main EEPROM with Software DDC 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 95/98/2000/XP.
3. LPT drive “PORT95NT.exe” and EDID tool “VGA_PHL.exe”
4. EDID Board (715GT034-B) x1,
5. Printer cablex1, VGA cable x 1, DVI-D cable x 1
6. 12V DC power source
7. EDID data
Connect the ISP board, PC and monitor as follow
Install the LPT drive
Restart the PC after the LPT driver installation
The process of writing EDID and SN
1. Rename the analog EDID to “wa.dat” and digital EDID to “wd.dat”.
2. Put the “wa.dat”, “wd.dat” and “config.ini” files into one folder named Philips 273E3.
Check the SN
1. Connect the VGA or DVI source and power on monitor.
2. Press the “MENU” button to enter the user menu. We can check the 14 digital SN on the bottom right of the menu.
eg
190V4L
If this SN number is the same as what we had written by EDID tool, the EDID and SN writing is completed finally
When you can’t burn in the EDID and SN, try the following ways.
1. AC on the monitor and turn on it.
2. Cut off the 5 pin of VGA cable terminal connected to monitor
3. Take apart the monitor and connect the 7pin of EEPROM to GND to disable write protection.
Can’t write error, try below few ways to cure can’t write errors!
1) AC on the monitor and turn on it.(Restart the monitor)
2) Take apart the monitor and connect the 7pin of EEPROM to GND to disable write protection then write EDID one by one.
3) Set the Burn in on to try again
DDC data values