REPAIRING AND NOT THROWING AWAY

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!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
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 29PFL5537, PHILIPS 32PFL5537 - HOW TO ENTER SERVICE MODE, SOFTWARE UPDATE, SMPS AND BACK-LIGHT INVERTER CIRCUIT DIAGRAM

PHILIPS 29PFL5537, PHILIPS 32PFL5537 - HOW TO ENTER SERVICE MODE, SOFTWARE UPDATE, SMPS AND BACK-LIGHT INVERTER CIRCUIT DIAGRAM

Philips LED TV - 22PFL5557 / V7, 22PFL5957 / V7; 24PFL5557 / V7, 24PFL5957 / V7; 29PFL5537 / V7, 29PFL5937 / V7; 32PFL5537 / V7, 32PFL5937 / V7.
Service Procedure
Factory Menu
Follow the below steps to pop-up the Factory Menu in case of “Factory Key” is disabled:
- press Remote Control key “MENU” to display main menu.
- press the subsequent Remote Control keys “2”, “5”, “ 8” and “0 .”
Press Remote Control “OK” key to enter the submenu.
Press Remote Control “Menu” key to go back to the previous menu.
Press Remote Control “RIGHT” or “LEFT” key to change the values.
Press Remote Control “OK” key run the function.  (OK: Current source has been calibrated)
SMPS schematic (Click on the schematics to zoom in)
Back-light inverter
Software Upgrade
Method-1
1. Save the new software file(*.bin) in the root directory of USB, and modify it’s name as
MERGE.pkg.
2. Plug in the USB.
3. Power on the set.
4. Connect the USB to TV set.
5. To enter into FACTORY MENU go to USER MENU, press the subsequence remote control keys "2","5","8","0”
6. Go to Software Update (USB) , press OK button of Remote, then press left bottom to select update the software.
7. After upgrading the software, you should Switch on the TV set by the remote control or the key-press.
METHOD - 2
Prepare Mstar ISP Utility tool for update.
1. Connect the PC to the serial connector on board using a special serial device (USB or COMx);
2. Provide the a correct voltage to the board;
3. Start “ MStar_ISP.exe”, and set the parameters.
select Port Type: USB, the ISP Slave address: 0x92, Serial Debug Slave Address: 0xB2)
4. Press “Connect” button to connect the communication between the PC and TV set.
5. Press “Read” button to select the SW that you want to update.
6. Press “Auto” and "Run" button to update the SW as the picture 3,and then wait it finish, it is about four minute.
DC-DC check
Before power on, check the board according to the relevant block diagram and circuit diagram, and make sure that no serious error should destroy the board. For example, the output of DC/DC and LDO should not be shorted to ground. Supply a suited voltage and power on, then check the voltage according to the relevant block diagram, circuit diagram and voltage spec. the error should less than 5% .For example, the voltage for main chip(3.3V, 2.5V,1.8V,8V,etc.), the voltage for DDR2 , the voltage for amplifier etc:
Panel ID check and modify
There is different ID stored in the NVM depended on different Panels. It can be checked and modified in Factory menu > SW INFO.
Posted By: FRANK at 17:30
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