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!

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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 3 September 2020

AOC LE43F1761 SMART TV HOW TO UPDATE THE SOFTWARE

 

AOC LE43F1761-35 FHD ISDB Smart TV:  FHD 1920*1080, Widescreen 16:9 Aspect Ratio: 60Hz

How to enter the service mode (Factory Mode)

Press "Menu" key to enter the menu interface, then press 8202 to enter factory menu.

MSD6306-ISDB Factory Mode Adjustment

MSD6306 software upgrades (After Service)

Preparatory work before the upgrade
Recorded all the ADC and the white balance data of all the message source in factory menu before upgrade(FLASH initialization may occur after the upgrade, flush color calibration data, then restore the data you have been recorded):
1. In the condition of YPbPb message source, press the MENU button after appear the main menu, then followed by 8202 number keys to enter the factory menu, select ADC ADJUST item, press the OK key to enter the next level menu, move the cursor to the MODE item, press the left / right Moving button and move the cursor selection in YPbPr (SD)item, record the R-GAIN/G-GAIN/B-GAIN value and R-OFFSET/G-OFFSET/B-OFFSET value.
2. In the ADC ADJUST item, press OK key to enter the next level menu, move the cursor to the MODE item, press the left / right cursor keys to select YPbPr (HD) item, record R-GAIN/G-GAIN/B-GAIN value and R-OFFSET/G-OFFSET/B-OFFSET value.

3. Operations and procedure of software upgrading:
3.1. Changed the file name to "MERGE.bin", then stored software in the FAT32 format blank U disk.
3.2. Insert USB flash disk into the USB upgrade port, upgrade the software according to the following the operating instructions:
Select AIR or TV signal source, press Menu key to pop up the main menu, then choose.

Select Software Update (USB), press right key or OK key to enter.

Software update menu will pop up when press confirm key, then select “Yes” to confirm:

The process of software updating:

Method 2：Keep pressing VOL+ and CH+ keys on the machine panel, power on the machine, the standby light flashes quickly after about 5 seconds, standby light extinguish and turn into lighting after about a minute, means that the upgrade is completed.

Notice
 ①. When the machine Upgrading (U disk light flash), do not remove U disk or switch off the power, otherwise it will destroy the software and lead cannot upgrade.
 ②. The machine must be power off when inserted or pulled out U disk, to avoid U disk or damage the machine.

When cannot upgrade in accordance with the step two, or upgrade failed, can only ISP upgrade, please refer to the following instructions.
ISP to upgrade tools and materials （When main board cannot use USB interface to upgrade）:
 * Personal computer （WINDOWS XP system,USB2.0）
 *AC100~240V power supply and power cord
 *ISP burning board
 *Drivers for ISP burning board ISP
 *ISP_Tool_XC_V1.10.exe
 *VGA cable
 *VGA EDID and HDMI EDID data.

Connect the ISP burning board and TV VGA port with VGA cable.

Insert the Mstar USB Tool into the USB port of your PC. The PC can recognize the new device. You can choose to install it in the list, or choose to install at a specified directory and specify the path to the drive file. See the figure below:


When PC finds the drive file, it will give the prompts as in the figure below during the installation process. Please click “Continue" to go ahead. The system will go through three drive installation processes, including Mstar USB Debug Tool A, Mstar USB Debug Tool B, and Mstar USB SerialPort. They will be installed one by one.

Software burning
a. When the drives are installed, connect the Mstar USB Tool board to TV main board in the following way. Then connect the power cord and run the software ISP-Tool V4.5.3.5.exe.

b. In the config menu bar, select Use USB > and > Auto release USB

Port Type under the Communication Setting items

select USB. Set the burning speed of 28 in I2C Speed Setting item, ISP Slave Address item menu select OX92，Serial Debug Slave Address menu select 0XB2.

Click Connect button, If it prompts "Device Type is GD25Q32" means that connect normally; If it prompts "Program File Not Ready!" means that there is poor connection, please have a check.

Click "Read" button, then click "Read" button again to load the current mainboard software.

Click "Auto" button, then set it according to the following figure.

Then press "RUN" button to burn software.

When display “PASS” after burning, means that software has burnt successfully.

Never plug or unplug the connection lines in the burning process. Please turn the power switch to “Off” when installing ISP board. Pull out the power cord from the machine and then pull out the burning adapter from the machine, when burning completed, change the TV and click RUN.

Run button to burn next machine.
When upgrade complete, install the machine back cover, then must be adjusted before leave factory.

Power to the machine, press MENU button on the remote control to popping the main menu, press 8202 number keys and then will popping the factory menu automatically, move the cursor to the "SPECIAL SET" option, press the remote control OK key to enter the next level menu, select "Restore User Default" in SPECIAL SET submenu, press OK key and the machine will black screen and restart after about 8 seconds, complete the reset action.

Run the KTC-LCD test software, switch to the mosaic picture and best resolution. Press MENU key to popup the main menu, and then press 8202 number keys to enter the factory menu, press the shift down key to ADC ADJUST option to press OK key to enter the next level menu. In the MODE option press left/right cursor keys to select RGB, and then press shift douwn key to move the cursor to the Auto ADC option, press OK key to enter the next level menu, press the left/right button to implement ADC action (The screen will flash and Auto ADC function menu prompt SUCCESS means that debug success, prompt FAIL said that debug failed, try again), press the MENU button to exit factory menu when debugging completed.

Under the YPbPb message source, press the MENU button after popping the main menu, then press 8202 number keys to enter the factory menu, select ADC ADJUST item, press the OK key to enter the next level menu, move the cursor to the MODE item, press the left/right Moving key mover cursor to select YPbPr(SD)item, change the R-GAIN/G-GAIN/B-GAIN value and R-OFFSET/G-OFFSET/B-OFFSET value of the machine after the upgrade to the value before the upgrade.

In the ADC ADJUST item, press OK key to enter the next level menu, move the cursor to the MODE item, press the left/right keys tomove cursor select the YPbPr(HD)item, change the R-GAIN/G-GAIN/B-GAIN value and R-OFFSET/G-OFFSET/B-OFFSET value of the machine after the upgrade to the value before the upgrade.

Complete the ADC ADJUST debugging, press MENU key succession to exit the factory built-in menu to save the adjusted data, and then restore the original packaging.

Posted By: FRANK at 05:47
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