Monday, March 11, 2019

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