Master Electronics Repair !

Welcome to Master Electronics Repair! website.Here you will find:Service Modes, Circuit Diagrams,Service manuals, Firmware Update procedure, Disassemble procedure, Universal remote control setup codes, Troubleshooting, Diagnosing, Measuring, and more.... of many of LCD/LED TV/Displays,others various electronic apparates,trough many technical notes and tips/tricks to help repairing/fixing Troubles/ faults,for electrical technicians.This site helps you to save the Earth from electronic waste!

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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You can even visit all posts, time to time, when reaching the bottom end of each page and click on the Older Post button.

- If you arrived here at the main page via bookmark you can visit all the site scrolling the left blog archive of all posts of the month/year pointing were you want , or more simple You can even visit all blog posts, from newer to older, clicking at the end of each bottom page on the Older Post button.
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- The search this blog feature provided by Google is a real search engine. If you're pointing particular things it will search IT for you; or you can place a brand name in the search query at your choice and visit all results page by page. It's useful since the content of the site is very large.

Note that if you don't find what you searched for, try it after a period of time; the site is a never ending job !

..............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 !

Thursday, 7 March 2019

HITACHI L42SP04 SERVICE MODE SOFTWARE UPDATE - LED LCD TV REPAIR

HITACHI L42SP04 Service mode software update - LED LCD tv repair

Category: LED LCD Television Repair

Contents of this article

Service mode
Software update

HITACHI L42SP04

SERVICE MENU

HOW TO ENTER TO SERVICE MODE In order to reach service menu, First Press “MENU” Then press the remote control code, which is “4725”. In DTV mode, first press “MENU” and select “TV SETUP”. Then, press “4725”.

SOFTWARE UPDATE DESCRIPTION
17MB35 Analog Part Software Update With Bootloader Procedure
The File Types Used By The Bootloader
All file types that used by the bootloader software are listed below:
1. The Binary File : It has “.bin” extension and it is the tv application. Its size is 1920 Kb.
2. The Config Binary File : It has “.cin extension and it is the config of the tv application. Its size may be 64 Kb or a few times 64 Kb.
3. The Test Script File : It has “.txt” extension and it is the test script that is parsed and executed by the bootloader. It don’t have to be any times of 64 Kb.
4. The Test Binary File : It has “.tin” extension and it is used and written by the test groups. It is run to understand the problem part of the hardware. Alltough a file that is used by the bootloader can be had any one of these extensions, its name has to be “VESTEL_S” and it has to be located in the root directory of the usb device.
Usage of The Bootloader
1. The starting to pass through : The chassis is only powered up.
2. The starting to download something : When chassis is powered up the menu key has to be pushed.Before the chassis is powered up and if any usb device is plugged to the usb port, the programme is downloaded from usb firstly. Any usb device is plugged to usb port , user must open hyperterminal in the pc and connect pc to chassis via Mstar debug tool and any one of scart,dsub9 or I2c connectors. Serial connection settings are listed below:
- Bit per second: 115200
- Data bits: 8

- Parity: None
- Stop bits: 1
- Flow control: None
In this case the bootloader sofware puts “C” character to uart. After repeating “C” characters are seen in the hyperterminal user can send any file to chassis by selecting Transfer -> Send File menu item and choosing “1K Xmodem” from protocol section.

EEProm update
To Update eeprom content via uart scart,dsub9 or i2c with Mstar tool can used. Serial connection settings are listed below:
- Bit per second: 9600
- Data bits: 8
- Parity: None
- Stop bits: 1
- Flow control: None
Programming menu item is choosed in the service menu and switch “HDCP Key Update Mode” from off to on.

After then you must see Xmodem menu in the hyperterminal.To download hdcp key press k or to download eeprom content press w.

If the repeated “C” characters are seen you can transfer file content via select Transfer- >Send File and choose “Xmodem” protocol and click the “Send” button.

17MB30 HDCP key upload procedure.
1) Turn on TV set.
2) Open a COM connection using fallowing parameters and select ISP COM Port No
Baud Rate: 9600 bps
Data Bits: 8
Stop Bits: 1
Parity: None
Flow Control: None
3) Enter service menu by pressing “4” “7” “2” 5” consecutively while main menu is open
4) Select “9. Programming”
5) Select “HDMI HDCP Update Mode” yes.
6) On Hyper Terminal Window press “k”
7) Click on send file under Transfer Tab.
8) Select Xmodem and choose the HDCP key to be uploaded.
9) Press send button
10)Restart TV set

17MB35 Digital Software Update From SCART
Adjusting DTV Download Mode:
1. Power on the TV.
2. Exit the Stby Mode.
3. Enter the “Tv Menu”.
4. Enter “4725” for jumping to “Service Settings”.
5. Select “8. Programming” step.
6. Change “6. DTV Download” to “On”.
7. Switch to the Stby mode.
Adjusting HyperTerminal:
1. Connect the “MB35 SCART Interface” to SCART1 (bottom SCART plug).
2. Also connect the “MB35 SCART Interface” to PC.
3. Open “HyperTerminal”.
4. Determine the “COM” settings listed and showed below.
# Bit per second: 115200
# Data bits: 8
# Parity: None
# Stop bits: 1
# Flow control: None

Software Updating Procedure
1. In the HyperTerminal Menu, click the “Connect” button.
2. Exit the Stby Mode.
3. The “Space” button on the keyboard

4. Press the “2” button on the keyboard for choosing “2. Upgrade Application with Xmodem”.
5. Repeating “C” characters are seen in the “HyperTerminal” menu.

6. Click the “Send” button on the HyperTerminal
7. Select the “Filename xxxx_slot1.img” using “Browse”.
8. Choose the “1K Xmodem” from “Protocol” option.

Note: In the Software updating Procedure section, when the first “C” character is seen, the filename selection process must be finished before 10 seconds. If the process can not be finished, the file sending operation will be cancelled. The following figure shows this situation.

9. When sending the file the window must be seen.

10. After the sending process the HyperTerminal window must be seen.

11. For sending second program file, the Software Updating Procedure must be repeated from the step X. Select the “Filename xxxx_slot2.img” using “Browse”.

12. After sending the second program file, the Software Updating Procedure will be succesful.
Note: After the File Sending Process,
1. Upgrade Application with FUM
2. Upgrade Application with Xmodem, options must be seen.

Checking Of The New Software
1. Turn off and on the TV.
2. Enter the “Setup” submenu in the “DTV Menu”.
3. Choose the “Configuration” option.
4. For controlling new software, check the “Receiver Upgrade” option.
17MB35 Digital Software Update From USB
Software upgrade is possible via USB disk by folowing the steps below.
1. Copy the bin file, including higher version than the software loaded in flash, into
the USB flash memory root directory. This file should be named up.bin.
2. Insert the USB disk.
3. Digital module performs version and CRC check. If version and CRC check is successful, then a message prompt appears to notify user about new version. If the user confirms loading of new version, upgrade.bin file is written into flash unused slot.
4. Digital module disables the previous software in the flash and then a system reset is performed.
5. After the reset, digital module starts with new software.
Revert operation:
With revert operation, it is possible to downgrade the software. Revert operation is very similar to upgrade process. In the revert operation, file name should be f_up.bin. Also user confirmation is not asked.
1. Copy the bin file into the USB flash memory root directory. This file should be named force_upgrade.bin.
2. Insert the USB disk.
3. A lower version than the software in flash can be loaded with revert operation. Digital module performs only CRC check. If CRC check is successful, then force_upgrade.bin file is written into flash unused slot.
4. Digital module disables the previous software in the flash.
5. A message prompt is displayed to notify user about end of revert process.
6. Power off/on is required to start digital module with the new software.
For controlling new software, check the “Receiver Upgrade” option.