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, 13 March 2019

NOBLEX 55LDUHDTI AND SANYO LCD TVS: LTDN85XT910XWAM3D, LTDN55K680XWAM3D, LTDN55K680XWAM3D 20 – HOW TO ENTER THE SERVICE MODE, FIRMWARE UPDATE, SMPS SCHEMATIC

Noblex 55LDUHDTI and Sanyo LCD TVs: LTDN85XT910XWAM3D, LTDN55K680XWAM3D, LTDN55K680XWAM3D 20 – how to enter the service mode, firmware update, SMPS schematic


MT5652+MST6M40 – chassis – PAL-M/N, NTSC, ISDB-T system

To enter the Factory OSD Menu
With user’s RC
1. Power TV On
2. Press Menu button and call up User OSD Menu
3. Select Audio > Balance, when Balance is “0”
4. Enter 1>9>6>9 in sequence.
Note: If necessary, re-enter number keys.
5. Factory OSD appears.
6. Press "EXIT" Key on remote control then can leave factory OSD Menu.
Note: MODE “M” is only used for factory production.
The factory menu date varies according to different sources. 
In case changing the factory data by error, you can choose to “Clean ALL”, by which you can resume the default value.
To clear the EEPROM
a. Select the item “Clean All”.
b. Press VOL+ button to clear the EEPROM data.
c. Close the OSD menu after 5 seconds.
d. Restart the TV.
USB Software Upgrading directly
The software can be upgraded by USB Disk.
 First, copy the upgrade_loader.pkg file to USB Disk;.
 Second, make sure there is no other .pkg file in the root directory of USB Disk.
 Insert USB Disk to USB port, and then power on the TV.
 The TV will identify the software and upgrade automatically.
USB upgrading unsuccessfully
If USB upgrading unsuccessfull, then need burning the Nand Flash program file“ *.bin ”to the Nand Flash.
Hardware connecting
Connect the unit to your pc with a USB-to-serial port cable. USB port connects to your PC and serial port to the TV’s RS232 port.
Install the driver
Select the default value, the driver will be installed step by step.
Upgrading with the FlashTool0.6.0.exe
FlashTool is a green program needing no installation. 
After Connect the unit to your pc with a USB-to-serial port cable flashTool0.6.0.exe. Please refer to the following steps to set.
Open “Device Manager” and find which port is connected with the TV. In above picture, COM4 is connected to the TV, so, select “COM4” and if COM6 is connected to the TV, so select “COM6”.
Select the right baud rate according to chip model. For this unit( chip model is MT5652), select 115200.
Click to connect, if connect successfully then button from red turn green.
Click,bounce the following dialog box. Load Bin File: find the upgrading program file, and select it. for example:HIS_5651_m1v2_oceania_secure_nandboot.bin.
Press “Upgrade” button and start upgrading., if update defeat, try again.
If bootloader Tool upgrading is ok, then need renew USB upgrading.refer ( USB Software Upgrading directly)
Network updating
Network updating includes three ways. Auto Upgrade, Network upgrade and USB upgrade.
No matter Auto Upgrade is ON or Off Network Upgrade is validated
 Auto Upgrade -- When set to “on” , system can automatically check whether or not have any new updating file in servers after have connected to the network. Customer can download and update according to the guide.
Network upgrade -- Check the process and it will prompt you to upgrade the software.
SMPS schematic
Products feature