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 !

Saturday, 23 February 2019

HISENSE LHD19W57EU & LHD22W57AU SERVICE MODE AND SOFTWARE UPGRADE

HISENSE LHD19W57EU & LHD22W57AU SERVICE MODE and SOFTWARE UPGRADE.

SERVICE MODE.   With Factory Remote Control
  • Press 'M' button and enter Factory Mode.
  • Press "Menu" button and enter Factory OSD menu.
  • Press Ch Up / Ch Dn buttons to call an item to adjust.
  • Press Vol Up / Vol Dn buttons to adjust the data value to selected item.
With User Remote Control.
  1. Power On the TV.
  2. Press "Menu" button, and call up user OSD menu.
  3. Select "Sound"--> "Balance".
  4. Enter [ 0->5->3->2 ] in sequence.
  5. Factory OSD will appear. 
The Factory Menu date varies according to different sources.  In case, changing the factory data value by error, choose to "clear EEPROM" and can resume the default value. 
To clear the EEPROM.
  • Select button "Clear All".
  • Press "Vol +" button to clear the EEPROM data.
  • When the "Clear All" button becomes 'White', turn Off the Power.
  • Restart the TV.
SOFTWARE UPGRADING.

The software is upgraded by a burning tool-Mtk tool, which can burn the program file*.bin to the main board of the unit.
  1. Install Driver
  • Double click the icon [PL-2303 driver installer.exe], install the driver.
  • Select 'Default" value, the driver will be installed step by step.
Hardware connecting.
  • Connect the unit to PC with a USB to jack(4pin) port cable. USB port connect to PC, and the 4-pin jack to 'J3' of the main board. 
  • For the first connecting , PC will recognize it automatically install the USB device.  The process is just like the installation of a mini disc.


 Upgrading with Mtk Tool
  • Mtk Tool is a green program need no installation.  It is saved in the folder [MTKTOOL_20061027].  There are five folders/files in this folder altogether. The MtkTool using log is restored in the MtkLog folder.  It records the running time and date whenever the tool is used.  The log will be a txt file named by date and time.
  • After connecting the TV to PC, double click the MtkTool.exe icon, open the file.    If any error appears, it means the related port is not set properly.  Ignore these errors, click 'confirm' and enter the MtkTool main interface.  
  1. Flash chip model.
  2. The port through which the PC communicate with the chip.
  3. The communication baud rate.
  4. The new program file (*.bin) for upgrading.
  5. Click this button can select the *.bin file to be used for upgrading.
  6. Click to start upgrading.
  • Open 'Device Manager' and find which port is connected with the TV.  Select the right baud rate according to chip model.  For this unit; chip model is MT537X, select 115200*2.  Where of not click the "Auto set Flash Baud rate" in the window menu depends on the chip type.  If flash chip does not support, do not select this option; otherwise, reverse the selected mood.
  • Click 'Brows' button, find the upgrading program file and select it.  Press 'Upgrade" and start upgrading.  
  • After upgrade, 'Upgrade sucessful' massage will be displayed.
Posted By: FRANK at 05:21
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