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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Monday, 6 July 2020

TOSHIBA 32L2800, L32-40-43-49S4900FS NT63 POWER BOARD SCHEMATIC ELECTRIC DIAGRAM, SOFTWARE UPGRADE, AMP SECTION CIRCUIT DIAGRAM

 

CHECKING THE SOFTWARE VERSION.

- With the TV on enter the Factory menu

- In the Factory menu, check if the software version installed is correct.

Main SW update via the User Menu

- Download the compressed file update.zip, change the name and extension to “V8-N563T01-LF1Vxxx.bin” where xxx is the version number.

- Save the file to the root of a USB device.

- Connect the USB device, with the software, to the USB port.

- Select MENU Support Update. of ware via USB.

- The device will find the Vxxx software. Press “Update”

- The update will start. After approximately 4 minutes the TV will automatically restart.

- After restarting, perform the reset by going to the settings menu “MENU (key) System Restore Mode

Factory. Confirmation and password request is requested. Enter 1234 and press "OK".

- After this the TV will restart.

Note: The version of the So ware to be used must be the one informed in the material plan of the respective product.

After approximately 4 minutes the TV will automatically restart.



UPDATE WHEN THE APPLIANCE HAS NO VIDEO

- Save the file to the root of a USB device by renaming it as “update.zip”.

- With the device disconnected from the mains, connect the USB device, with the installation software, to the USB port.

- Press the TV's Power key and keeping it pressed, connect the TV to the mains

- The update will start. After approximately 4 minutes the TV will automatically restart.

- After restarting, perform the reset by going to the settings menu “MENU (key) System Restore Mode

Factory. Confirmation and password request is requested. Enter 1234 and press "OK".

- After this the TV will restart.

PROJECT ID CHANGE

(If panel information is wrong)

If the screen is completely dark due to the difference in panel x installed ware, press 062598 + MENU + xxx (xxx: Panel ID)


After the update, the TV will enter TV mode and the channel that was previously selected. Enter the menu factory settings again, select option 3 - Reset Shop, press enter.

After the reset, switch on the device using the power key.

PANEL TEST MODE (WARM-UP)

Recommended for analysis of panels (spots, dots, scratches, etc.).

Enter the Factory Menu as indicated before, turn on the "Factory hotkey" option and turn on the "WARM-UP" function.

A sequence of screens in different colors will be generated where it can be verified in more detail, possible failures the panel.


VERIFICATION OF AUTHENTICATION KEYS

In the same “WARM-UP” mode, a table with the main product information will be displayed in the corner bottom right.

In this table we have the project information:

We have the project ID, as shown in the table above and then the version of the software in use.

Below the information of the recorded keys (MID):

MAC (Mac Address) Without recording this key, it is not possible to connect to the internet network via ethernet (LAN);

DID (Device ID) Factory Control of the product; Already included in the main ware.

ESN (Ne lix) Without the recording of this key, it will not be possible to access the Ne lix services;

HDCP Without recording this key, high definition images from the HDMI inputs will not be reproduced;

HDCP2.0 Without the recording of this key, high definition images via wireless will not be reproduced;

IMPORTANT NOTE: If some of the keys are not recorded, the information “NULL” will appear in substitution the respective key in that line as shown in the image on the right.

In this case, SEMP TCL support should be contacted for instructions on recording procedures.

To EXIT the “WARM-UP” mode, press the POWER key on the device because the control functions remote will be disabled and if the device is just disconnected from the network, the “WARM-UP” mode will return when connected to the network again.

After exiting WARM-UP, enter the factory menu again and turn off the Factory Hotkey option or give a user reset.


Power board schematic

ENTRY STAGE

CONVERTING STEP

BACKLIGHT CONTROL STEP

AMP USING  AD82587

PHONES OUTPUT - AMP AND CONNECTIONS