Sony XBR 65HX955 LCD – How to enter the service mode, LED Blinking codes, Software update - Common to All XBR model LCD TVs

Sony XBR 65HX955 LCD – How to enter the service mode, LED Blinking codes, Software update - Common to All XBR model LCD TVs – Full description about adjustments

The primary circuits in the AZ3G chassis consist of a Main Board (BAPS Board), Power Supply Board (G14/G15 Boards), the IR Board (HL Board), the 3D IR Emitter (HEM3 Board), the Wireless LAN Card, the Switch Unit, and the LCD Panel Assembly which includes the TCON Board and LD Board.

MAIN BOARD

Common to all models the Main Board, designated as the BAPS Board, contains the TV control, video and audio processing circuitry. All these functions are accomplished using the X-Reality Processor IC9000.

TUNER

The tuner is a combination analog/digital unit. It can receive traditional analog NTSC signals via cable or terrestrial along with digital SBTVD.

X-REALITY PROCESSOR

IC9000 performs the majority of the necessary audio and video processing on the Main Board.

TV Microprocessor: The CPU internal to the X-Reality processor controls all aspects of the television functions. Input from the user along with monitoring of critical circuits is also performed by this CPU.

Digital Audio and Video Decoder: The MPEG2 and Digital Dolby audio streams are received from the tuner for decompression. All video sources which are not native 1920 X 1080p 60HZ are scaled to this resolution.

Digital audio content is output to the class D amplifier for processing and amplification.

HDMI Input and Switching: The customer can select from the HDMI1through HDMI4 input via the HDMI switch IC5500. Each HDMI input contains a common EDI NVM (internal to IC5500) to provide display information data to any device connected via the HDMI inputs.

LVDS Transmitter: Integrated into IC9000 is a Low Voltage Differential Signaling (LVDS) transmitter. This circuit converts the 8-bit parallel RGB video information into a set of high speed serial lines for noise-free transmission to the TCON Board circuits located internally to the LCD Panel.

Scan Converter: Signal processing circuit that performs resolution conversion (aspect ratio) and interlaced to progressive scan (IP) conversion.

AUDIO AMPLIFIER

The main speaker audio amplifer (IC4601) and sub-woofer amplifier (IC4701) amplifies the digital audio output of the X-Reality Processor and sends it to the speakers.

TEMPERATURE SENSOR

The temperature sensor detects over-temperature conditions on the Main Board, LCD Panel or ambient room temperature and sends the shutdown signal to the processor.

POWER SUPPLY BOARD

The Power Supply Boards used in this model are:

G14 and G15 Boards
There are 3 distinct sections on the power supply:
Standby Supply: Continuously operational as long as AC power is applied, the standby supply generates 3.3V for the circuits requiring power while the unit is turned off. An unregulated 19V line is present to provide power to the main relay, PFC and main power supply at turn-on.
Main Supply: Once the power supply receives a power-on command from the CPU on the Main Board, the main switching supply is turned on to provide a regulated 12V source and Audio 12V.
Converter: Generates the B+ and B- voltages for the LED back-lights.

IR BOARD
Designated as the HL Board, the IR Board contains the power, standby and timer LED’s that are located on this board along with the IR Remote Receiver and light level sensor.
3D IR EMITTER BOARD
Designated as the HEM3 Board, this board is the internal 3D IR Emitter to synchronize the 3D shutter glasses

WIRELESS LAN CARD
The wireless transmit/receive circuits are located on this board to communicate with a wireless network.
SWITCH UNIT
This board contains the power, channel and volume up/down, and menu buttons.

LCD PANEL ASSEMBLY

The LCD Panel Assembly includes the LCD Panel, TCON Board and LED Backlight system.

NOTE: The LD Board is not always included with the LCD Panel. Check with the LCD Panel manual for the most update information regarding this information.

The LCD Panel contains the actual liquid crystals, color falters and polarizers. The liquid crystals are manipulated by the applied voltage to pass a specific amount of light - from the backlight- depending on the level of voltage applied.

The TCON performs all the control, timing, charge and discharge functions driving the operation of the LCD Panel.

A new LCD Panel Assembly will include the following items:

LCD Panel
LED Backlighting System (varies)
TCON Board
LD Board
TCON BOARD
The TCON Board communicates between the LCD Panel and the microprocessor on the Main Board.
NOTE: The TCON Board is not available as a replacement part for all models. To determine if the TCON Board is available as a replacement part, refer to the LCD Panels Manual.

SELF DIAGNOSIS FUNCTION

Critical voltages and circuit operations are monitored by the CPU on the Main Board. If an error is detected the Self Diagnosis function in the TV will force the TV to shut down by the CPU. The monitored circuit in which the fault occurred will automatically cause the CPU to blink the Standby LED in groups of repeating sequences. The number of times the Standby LED blinks indicates the possible cause of the problem.

Not all of the available protect codes are used in every model. For example, models that don’t have the local dimming feature do not use the 4X blink error as this circuit is found in models that are backlit with ﬂuorescent lamps.
The information in this section provides guidance in locating the possible component causing the shutdown.

UPDATING THE SOFTWARE
The Self Diagnosis function is designed to provide information regarding the problem with the TV, however, there are several issues that may be resolved by updating the TV software to the latest version.
Most symptoms that are correctable by software updates involve communications issues with other devices or minor glitches in the operation of a specific function. Below is a list of some of the symptoms that may be corrected with a software update:

Fluctuations in picture brightness

Intermittent picture freezing or noise

Problems with certain inputs (especially HDMI)

Intermittent or distorted audio

Erratic remote control operation

TV turns on and off by itself

Loss of color

Internet connectivity (internet models only)

Certain features not working correctly (photo or video file viewing)

SELF CHECK DIAGNOSIS HISTORY
When an error is detected, the Self Check screen records the date(s) and the number of times the error occurred. This is helpful in confirming past occurrences of an error and for determining if an error is intermittent when the customer is not sure what is causing the television to shut down. If the screen displays a “0”, no error has occurred.
1. Take the TV out of deep Standby mode by pressing POWER to turn on the TV.
2. Press POWER to turn the TV back off.
3. Press the following buttons on the Remote Commander within a second of each other: DISPLAY Channel 5 Volume - POWER
NOTE: This differs from accessing Service Adjustments Model (Volume +).

2X Blink - Main Power Error
A loss of REG12V from the power supply triggers this protect event. The usual cause is a failure of the main switching supply. In some instances, excessive loading on the secondary supply lines can cause the switching regulator to stop or fail again, if a replacement board is installed.
3X Blink- DC Regulator/Audio Error/HDMI/Tuner
Several items are monitored on the Main Board. Any error detected in the following circuits will cause the television to shut down and generate a 3X error:
Loss of regulated B+ circuits
Audio amplifer failure
HDMI equalizer IC
Tuner demodulator circuits
In most cases, replacement of the Main Board will remedy a 3X error.
4X Blink – Balancer Error
The 4X error code is only used on models incorporating local dimming LED backlighting. If a failure occurs on the LD Board or one of the LED’s fails in the panel the TV will shut down and display this diagnostic code. Models using conventional non-local dimming LED backlighting do not utilize this error code.

5X Blink - TCON Error
The 5X blink protection mode indicates a communications error between the TCON Board and the X-Reality microprocessor on the Main Board. If the TCON is available for replacement, replace the TCON. If the TCON is not available, the LCD Panel must be replaced since the TCON circuit is part of the LCD Panel Assembly. In rare cases a loose or defective LVDS Cable could also be the cause.

6X Blink - Converter System Failure
If the Converter circuit (located on the power supply or separate Converter Board) fails to start or shuts down due to an over-voltage or over current condition, the unit will shut down and generate a 6X error code. The diagnostic page labels this as a “Backlight Failure” even though the backlights are not a source of the problem. Replacement of the Power Supply Board should rectify this problem.

7X Blink - Temperature Failure

If the temperature inside the television becomes excessive, the temperature sensor (located on the Main Board) notifies the TV to shut down and display a 7X error. Excessive temperature errors will always occur when the TV has been running a while and can be caused by excessive ambient heat or improper ventilation of the television.

8X Blink – Not listed in Self Check

The 8X blink code is mainly used during TV software development. Look in TV’s service Self Check for error code history and notice at the bottom of the list WDT (Watch Dog Timer) error codes, in particular notice 103 HOST_WDT. If this error code appears, check for any additional documentation on the Sony ESI site.

10X Blink – IR Sync Transmitter Failure

A failure of the infrared sync transmitter circuits on the HEM3 Board will cause a 10X error and replacement of this Board will usually rectify the problem. In rare cases, the Main Board could be the source of the failure.

SOFTWARE UPDATES FOR CUSTOMERS

The subject of software updates is very important. The televisions of today have advanced to the point where they are not simply a television anymore. They are evolving into devices that are designed to integrate with numerous other devices found in the home. Some examples are: portable audio and video devices, still cameras, home computer networks and accessing the internet to name a few.

Communications with these varying devices requires that the television be compatible with varying communications protocols. Although standards are detailed for each of these protocols, the real world dictates that occasional errors may occur that could prevent devices from operating or communicating properly.

Keeping the software in the television up-to-date is a procedure that is normally handled by the owner of the television. Most customers who own computers and other digital devices are familiar with and are accustomed to updating the software in their products. If a customer contacts the Sony Customer Support Center and it is deemed to be correctable with a software update, the issue is handled at the customer level.

Software updates can be performed by:
Customer Manual Downloads
Software updates can be downloaded and placed on a USB thumb drive to be loaded onto the TV. The instructions for downloading the software fle vary from chassis to chassis and sometimes from model to model. The customer is provided with the instructions to properly format the USB thumb drive, unzip the fle and the procedures for loading the software into the television.
Network Downloads
Internet software updates are becoming more prevalent as more and more models incorporate home network capabilities. This method is the most practical since the
television will check for the latest version of software. The models with this type of chassis provide the customer with a choice of turning the automatic software update feature on or off. If set to on, the television will lookup software information while the unit is in standby. If a newer version is available, it will be downloaded and installed without any input from the customer.
Built-in Tuner
OTA or cable sources having the proper station that is transmitting software update data packets. Although the ability to transmit software update is possible in this way, it is the least common and is reserved for particular situations where a critical update is “forced”, thereby updating the TV without any input from the customer.

SOFTWARE UPDATES FOR SERVICES
Replacement Main Boards are now stocked with basic software. Once the replacement board is installed in the TV, the most current software needs to be installed using a USB thumb drive containing the necessary software. This new method of supplying Main Boards significantly reduces the complexity of replacing the Main Boards. Information about the LCD Panel is stored on the TCON circuits. This information is automatically loaded onto the Main Board when the TV is powered up. With the correct software version the Main Board and/or the TCON can be replaced more efficiently.
CHECKING THE SOFTWARE VERSION
The easiest way to check the version of software that is currently on the TV is to access the Contact Sony screen by using the customer menu.

WHEN REPLACING THE MAIN BOARD
The following must be performed after replacing the Main Board to ensure that all of the features for the TV will be available:
Update the Software
Select the Destination
Select the Model Name
Add the Serial Number
Confrm the Model ID and the Product ID
Clear the Self Check Diagnosis History

UPDATING THE SOFTWARE
After replacing the Main Board you MUST UPDATE the SOFTWARE to the latest version.
Whenever the Main Board is replaced, the software must be updated so that the new board syncs with the LCD Panel. If a message displays indicating the latest software is already installed, proceed to Resetting the LCD Panel to Update the Software.
There are 2 situations that can occur after replacing the Main Board:
1. After replacing the Main Board, turn the TV ON.
Case 1 - If there is no picture displayed and lights ﬂash on the front panel, insert the USB device. The update will start automatically.
NOTE: This update may take up to 5 minutes to complete. Do not remove the USB device, turn off the TV or unplug the power cord while the update is in progress.
Case 2 - If the picture displays, you will need to reset the LCD Panel ID to force update the software. Proceed to Resetting the LCD Panel to Update the Software.

RESETTING THE LCD PANEL TO UPDATE THE SOFTWARE
NOTE: These steps are only required if the software did not update.
1. Take the TV out of deep Standby mode by pressing POWER to turn on the TV.
2. Press POWER to turn the TV back off.
3. Access Service Mode by pressing the following buttons on the Remote Commander within a second of each other: DISPLAY Channel 5 Volume + POWER
4. The DIGITAL Service Menu displays.
NOTE: There are 3 Service Menus for this model, DIGITAL, CHASSIS and VPC.

5. Press JUMP or OPTIONS on the Remote Commander until the CHASSIS menu displays.

6. Press to move to the next category until the 007 DL category displays.

7. Press 3 to increase the data value to 1

8. Press MUTING then press 0 to to WRITE (Save) the changes.

When complete, the screen brieﬂy indicates WRITE.

9. Exit Service Mode by turning the TV power off.

10. Return to Updating the Software.

SELECTING THE DESTINATION

The correct destination needs to be selected after replacing the Main Board.

CAUTION: Selecting the incorrect destination may require replacing the Main Board.

Verify before proceeding to the next step:

Updated the Software

1. Take the TV out of deep Standby mode by pressing POWER to turn on the TV

2. Press POWER to turn the TV back off.

3. Access Service Mode by pressing the following buttons on the Remote Commander within a second of each other: DISPLAY Channel 5 Volume + POWER

4. Press 2 to move to the next category until 002 MODEL category displays.

5. Press 1 to move to the next item until 001 DEST item displays.

6. Using the table, press 3 to increase the data value o. 6 to decrease the data value, to select the correct destination of the TV.

Model Name	Destnaton	Data Value
XBR-65HX955	BRAZIL	ATSC-LTN_BASE

Verify the destination is set correctly before proceeding. If the incorrect Destination Data Value is selected, it may corrupt the software requiring a Main Board replacement.

7. Press MUTING then 0 to WRITE (Save) the changes.

When complete, the screen brieﬂy indicates the process is DONE.

8. Proceed to Selecting the Model Name.

THE MODEL NAME
The correct Model Name needs to be selected to ensure all of the TV features are available.
Verify before proceeding to the next step:
Updated the Software
Selected the Destination

9. Press 1 to move to the 002 MODELNAME item.

10. If the correct model does not display, press 3 until the model displayed matches the model of the TV.

11. Press MUTING then press 0 to WRITE (Save) the changes. When complete, the screen brieﬂy indicates the process is DONE

12. Proceed to Adding the Serial Number

The replacement board does not contain a Serial Number. Use the following instructions to add the customer’s Serial Number.
CAUTION: The Serial Number can only be selected once. Be sure to verify the information is correct before saving the changes.
Verify before proceeding to the next step:
Updated the Software
Selected the Destination
Selected the Model Name

13. Locate the Serial Number for the TV on the side of the Rear Cover of the TV

14. Press JUMP or OPTIONS on the Remote Commander until the DIGITAL menu displays

15. Press 2 to move to the 002 MODEL category.

16. Press 1 until the 003 SERIAL item displays.

17. Press 0 to display the Serial Number Edit option.

18. Press (+) to display the Serial Number input screen.

CAUTION: The Serial Number can only be selected once. Be sure to verify the information is correct before saving the changes.

9. Using the Remote Commander, enter the Serial Number of the TV.
NOTE: If the incorrect Serial Number is entered, press (Return) to go back to the Serial Number input screen and re-enter the correct Serial Number.

20. After confirming the Serial Number, press(+) to WRITE (Save) the Serial Number to the replacement Main Board. When complete, the screen indicates the process is DONE, then the Serial Number displays

21. Proceed to Confirming the Model ID and Product ID

THE MODEL ID AND PRODUCT ID

After completing all of the service adjustment changes, verify that the

correct Model ID and Product ID displays in the Service menu.

Verify before proceeding to the next step:

Updated the Software

Selected the Destination

Selected the Model Name

Added the Serial Number

22. Press 4 to move to the 001 OP category

23. Using the information provided in the table below, verify the Model ID and Product ID are correct.

Model Name Destnaton Panel Name Model-ID Product-ID

XBR-65HX955 BRAZIL V645H1-PE1A 0493A12E 03049040

24. Exit Service Mode by turning the TV power off.
25. Cycle AC Power.
(Unplug and plug AC Cord from the AC Outlet).
26. Wait a minute while lights ﬂash and Initial Setup screen shows.
27. TV update is complete.
NOTE: The additional features of the TV, including 3D, are now available.

CLEARING THE SELF CHECK DIAGNOSIS HISTORY

Since the diagnostic results displayed on the screen are not automatically cleared, always confirm the Self Check screen after you have completed the repairs to be sure you reset the result display to “0”.

Verify before proceeding to the next step:

Updated the Software

Selected the Destination

Selected the Model Name

Added the Serial Number

Take the TV out of deep Standby mode by pressing POWER to turn on the TV.

2. Press POWER to turn the TV back off.

3. Press the following buttons on the Remote Commander within a second of each other: DISPLAY Channel 5 Volume – POWER

4. To clear the error history and error count press 8 0 .

5. Exit Self Check by turning the TV power off.
6. Cycle AC Power.
(Unplug and plug AC Cord from the AC Outlet).

RESOLVING AN 8 BLINK ERROR
It’s possible that a customer may report an 8X blink error code even though an 8X blink error isn’t an option in the Self Diagnosis Self Check list. An 8X blink error is mainly used during TV software development. To verify that there is an actual 8X error, view the TV’s Self Diagnosis Self Check list history, specifically at the bottom of the list WDT (Watch Dog Timer) error codes.

The 8X error code could be the result of:

Software Issue

Network Issue

Skype Login Issue

Incompatible USB Device Plugged Inserted

Defective Main Board

Every time 3 errors are registered in the Self Diagnosis Self Check screen the TV will shut down and activate an 8X blink pattern on the Standby LED.

If an error count is indicated, usually as an 103 HOST_WDT error, follow these instructions to update the TV.

VERIFYING THERE IS AN 8 BLINK ERROR
1. Disconnect all inputs to the TV.
2. Cycle AC Power.
(Unplug and plug AC Cord from the AC Outlet).
3. Do one of the following:
a. If the Standby LED blinks red 8 times, proceed to
Resetting the TV Factory Condition.

RESETTING THE TV TO FACTORY CONDITION

Verify before proceeding to the next step:

Verified the error is an 8X error

1. To reset the TV, follow the instructions for Resetting the TV to Factory Condition.

2. Do one of the following:

a. If the Standby LED blinks red 8 times, proceed to Updating the Software

b. Clear the Self Check history.

UPDATING THE SOFTWARE
Verify before proceeding to the next step:
Verified the error is an 8X error
Reset the TV to Factory Condition
1. Check for latest Software Version through Network Connection or Reference Library.
2. Connect and Configure TV Network Connection.

3. Display the menu by pressing HOME

4. Using [L,R,Up,Dn] on the Remote Commander, select the following:

Settings Product Support Software Update.

[If TV is not connected to a network download the latest software for these models and Install using a USB Thumb Drive.]

5. Do one of the following:
a. If the Standby LED blinks red 8 times, proceed to Replacing the Main Board

REPLACING THE MAIN BOARD
The Main Board should be replaced only if all other options have not resolved the issue.
Verify before proceeding to the next step:
Verified the error is an 8X error
Reset the TV to Factory Condition
Updated the Software

COMPLETING SERVICE REQUIREMENTS WHEN REPLACING THE LCD PANEL
The following must be performed after replacing the LCD Panel to ensure that all of the features for the TV will be available:
Update the Software
Confirm Model ID and Product ID
Reset the Panel Operation Time
Clear the Self Check Diagnosis History

[After replacing the LCD Panel you MUST UPDATE the SOFTWARE to the latest version. Whenever the LCD Panel is replaced, the software must be updated so that
the new panel syncs with the Main Board. If a message displays indicating the latest software is already installed, proceed to Resetting the LCD Panel to Update the Software.]

There are 2 situations that can occur after replacing the LCD Panel:

1. After replacing the LCD Panel, turn the TV ON.

Case 1 - If there is no picture displayed and lights ﬂash on the front panel, insert the USB device. The update will start automatically.

NOTE: This update may take up to 5 minutes to complete. Do not remove the USB device, turn off the TV or unplug the power cord while the update is in progress.

Case 2 - If the picture displays, you will need to reset the LCD Panel ID to force software update.

2. After the update is complete, proceed to Confirming the Model ID and Product ID

CONFIRMING THE MODEL ID AND PRODUCT ID

After completing all of the service adjustment changes, verify that the correct Model ID and Product ID displays in the Service menu.

Verify before proceeding to the next step:

Updated the Software

3. Press JUMP or OPTIONS on the Remote Commander until the DIGITAL menu displays

4. If necessary, press 4 to move to the 001 OP category

5. Using the information provided in the table below, verify the Model ID and Product ID are correct.

Model Name	Destnaton	Panel Name	Model-ID	Product-ID
XBR-65HX955	BRAZIL	V645H1-PE1A	0493A12E	03049040

6. Exit Service Mode by turning the TV power OFF.

7. Cycle AC Power.

(Unplug and plug AC Cord from the AC Outlet).

8. Wait a minute while lights ﬂash and Initial Setup screen shows.

9. Proceed to Resetting the Panel Operation Time.

After completing all steps, reset the panel operation time from the Self Check screen.
Verify before proceeding to the next step:
Updated the Software
Confirmed Model ID and Product ID

Take the TV out of deep Standby Mode by pressing POWER to turn on the TV

2. Press POWER to turn the TV back off

3. Press the following buttons on the Remote Commander within a second of each other: DISPLAY Channel 5 Volume – POWER

4. To clear the LCD Panel operating hours after replacing the LCD panel, press 7,0.

5. Proceed to Clearing the Self Check Diagnosis History.

After resetting the panel operation time, clear the Self Check screen.
6. To clear the error history and error count press 8 0

7. Exit Self Check by turning the TV power off.
8. Cycle AC Power.
(Unplug and plug AC Cord from the AC Outlet)

OPTIONAL ADJUSTMENTS

ENABLING VCOM TO ADJUST THE PICTURE
The VCOM adjustment displays a green screen while you adjust the picture.
1. Take the TV out of deep Standby Mode by pressing POWER to turn on the TV

2. Press POWER to turn the TV back off.

3. Press the following buttons on the Remote Commander within a second of each other:

DISPLAY

Channel

Volume

POWER

4. Press JUMP or OPTIONS on the Remote Control until the VPC menu displays.

5. Press 2 to move to the 002 VCOM category

6. Enable the VCOM by pressing 3 to increase the data value to 1

7. Press 1 to move to the 001 ADJUST item

8. Change the value of the 001 ADJUST item to adjust the picture by pressing 3 to increase the data value or 6 to decrease the data value.

[When changing the data value, the screen will turn green for approximately 3 seconds before returning to the Service Adjustments screen.]

9. When the picture is clear, press MUTING then 0 to WRITE (Save) the changes.

10. Do one of the following:

a. If adjustments are complete, press POWER to turn the TV back off.

b. Proceed to Setting the White Balance Adjustments.

SETTING WHITE BALANCE ADJUSTMENTS
White Balance adjustment data is located on the DIGITAL menu.

11. Press 2 to move to 006 WB category

12. To change the data value of the R_DRV, press 3 to increase the value or 6 to decrease the value.
NOTE: The data value must be set between the range 1 to 255.

13. Press 1 to move to the next item (001 G_DRV).
14. To change the data value, press 3 to increase the value or 6 to decrease the value.

15. Repeat steps 6 and 7 for each of the following items:

002 B_DRV
003 R_BKG
004 G_BKG
005 B_BKG

16. To save the changes, press MUTING then press 0

17. Exit Service Mode by pressing POWER to turn the TV back off.

RESETTING THE TV TO FACTORY CONDITION

Use the following instructions to restore the User Adjustments and Channel Memory settings to the preset Factory Conditions

Turn the TV On by pressing POWER , then wait approximately 40 to 60 seconds.

While holding down on the Remote Commander, press POWER on the side of the TV.

3. The set restarts and displays the Initial Setup screen. This may take several minutes.

RESETTING THE TV TO FACTORY CONDITION USING SERVICE MODE
1. Take the TV out of deep Standby mode by pressing POWER to turn on the TV.

2. Press POWER to turn the TV back off.

3. Press the following buttons on the Remote Commander within a second of each other:

DISPLAY Channel 5 Volume+ Power.

4. If necessary, press Jump or Options to go to DIGITAL menu.

5. Press the following buttons on the Remote Commander within a second of each other: 8 MUTING 0

SERVICE changes to green RST.
RST executes the command and displays EXE.
EXE-RST displays green, then red indicating the TV is writing the data.

6. When the process is complete the green SERVICE text displays.

7. Cycle AC Power.
(Unplug and plug AC Cord from the AC Outlet).
The set restarts and displays the Initial Setup screen. This may take several minutes.

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12 lỗi thường gặp ở tivi LG Nguyên nhân và xử lý

Trung tâm bảo hành tivi toshiba

Sửa tivi toshiba tại nhà

Sửa nguồn tivi toshiba tại nhà

Các lỗi TV Toshiba hay gặp và cách khắc phục

Sửa nguồn tivi toshiba tại nhà

Bảo hành tivi Panasonic tại nhà Hà Nội

Bảo hành tivi Sharp bị mất màu

Những điều cần chú ý khi sử dụng tivi LCD

10 Câu hỏi thường gặp về độ phân giải tivi

TRUNG TÂM BẢO HÀNH TIVI SHARP TẠI HÀ NỘI

Sửa chữa tivi LCD Sharp tại nhà Hà Nội

Bảo hành tivi Sharp bị mất màu

10 Câu hỏi thường gặp về độ phân giải tivi

Trung tâm bảo hành sửa chữa tivi hưng yên

Sửa tivi tại nhà tại hưng yên

Sửa tivi không lên hình

tivi không lên nguồn,tivi đang xem bị tắt nguồn

Cách cài đặt ứng dụng ngoài trên Smart tivi TCL bằng file apk

Cách cài đặt ứng dụng ngoài trên Smart tivi TCL bằng file apk

Sửa tivi tcl tại nhà hà nội

Các lỗi thường gặp của tivi TCL và cách sửa chữa

Trung tâm bảo hành tivi TCL tại hà nội

Sửa tivi tại thuận thành bắc ninh

Sửa tivi tại nhà từ hồ bắc ninh

sửa tivi tại nhà tại lương tài bắc ninh

Sửa tivi tại nhà tại thị trấn thứa bắc ninh