REPAIRING / SERVICING TV HAIER LE43K6500U

Technical description and composition of the HAIER LE43K6500U TV, panel type and modules used. The composition of the modules.

HAIER LED
Model: LE43K6500U

Chassis / Version: T.MS6586.U801

Panel: LC430EGY-SKM3

LED backlight: LED42D08B-ZC26AG-01

T-CON: 6870C-0738A

LED driver (backlight): integrated into PSU

PWM LED driver: OB3334CP

MOSFET LED driver: 70R380

Power Supply (PSU): TV5006-ZC02-02

PWM Power: PWM SOT23-6 OB2273

MOSFET Power: 70R600

MainBoard: T.MS6586.U801 515Y65866M011343R

IC MainBoard: CPU, NAND Flash, DDR

Tuner: DVB-T2 & SAT

Specifications LE43K6500U
HAIER LE43K6500U
General recommendations for TV LCD LED repair
Possible malfunctions

- The HAIER LE43K6500U TV does not turn on and does not show any signs of operation at all. No response to the remote control and front panel control buttons.

Most likely in this case the main switching power supply (SMPS) TV5006-ZC02-02 is faulty. It is necessary to measure its output voltages, and in case of their absence (full or partial), the serviceability of the power switches (70R600) of the converters and rectifier diodes should be checked for a possible short circuit.
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in an emergency mode of short circuit without output voltages, and with a short circuit in the elements of the primary circuit, the mains fuse most often breaks off immediately and, less often, the current sensor in the source of the key.
Breakdown of Mos-Fet keys used in switching power supplies is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM controller, in frequency setting or damper circuits, as well as in negative feedback stabilization. PWM microcircuits (PWM) PWM SOT23-6 OB2273 are usually checked by replacing them with new ones, or knowingly working.

- There is no picture, but there is sound, it reacts to the remote control. Or the image appears when turned on and immediately disappears

Usually, in such cases, there is no backlighting of the LED panel (matrix). Often the cause is a malfunction of the LEDs (open circuit, short circuit ...), or connectors of the strips (strings) LED42D08B-ZC26AG-01, less often the LED driver is faulty.
It is impossible to identify an open circuit in the LED line without disassembling the panel with a simple multimeter. The LEDs are connected in series and a voltage of several tens of volts is required to open their junctions. Ideally, a current source is suitable for such purposes. You can open the panel and check each LED separately. Usually, Chinese multimeters lightly light up one 3-volt LED if you connect the probes to it in the forward direction (red probe to the anode, black to the cathode). For dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of the LED health. In the event of a malfunction of the LED, its zener diode will either be cut off or pierced in the K / Z.

READ HOW TO REPAIR THE TV LED BACKLIGHT --------------> HERE.

- The TV does not go into operation, does not respond to the remote control. The indicator on the front panel is on or blinking.

Repair or diagnostics of the T.MS6586.U801 motherboard should begin with checking the stabilizers and power converters necessary to power the microcircuits and matrix. If necessary, you should update or replace the software (software). If it is not possible to replace the MB (SSB) board, you need to check the health of its elements - CPU, NAND Flash, DDR. Defective components must be replaced.

Malfunction of the DVB-T2 & SAT tuner is established after checking the software and all supply voltages at its outputs. The data exchange of the tuner with the processor via the I2C bus can be monitored with an oscilloscope.

Owners of the LE43K6500U TV are advised to contact only qualified specialists with the necessary work experience for repair! Attempts to repair yourself without the appropriate knowledge and skills can lead to irreversible negative consequences!


DOWNLOAD SCHEMATIC DIAGRAM POWER SUPPLY  ------------------>   TV5006-ZC02-02 Power supply.


The appearance of the MainBoard T.MS6586.U801 is shown in the figure below:

T.MS6586.U801

External view of the power supply
TV5006-ZC02-02:
TV5006-ZC02-02
The main features of the HAIER LE43K6500U device:
The matrix (LED-panel) LC430EGY-SKM3 is installed.
Matrix control uses the 6870C-0738A Timing Controller (T-CON).
A converter combined with a power supply is used to power the backlight LEDs and is controlled by the OB3334CP PWM controller. The keys of the 70R380 type are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the HAIER LE43K6500U TV is carried out by the TV5006-ZC02-02 power module, or its analogs using PWM SOT23-6 OB2273 microcircuits and power switches of the 70R600 type.
MainBoard - the main board (motherboard) is a T.MS6586.U801 module, using CPU, NAND Flash, DDR and others.
The DVB-T2 & SAT tuner provides reception of television programs and tuning to channels.



TV HAIER LE43K6500U with LCD display LC430EGY-SKM3, 42.5 "(108 cm) diagonal, 16:10 format. The required screen brightness of 250 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 1100: 1. The LCD-panel of the TV is equipped with a direct backlight with LEDs - Direct LED.
The LC430EGY-SKM3 matrix and the MainBoard T.MS6586.U801 software realize high-quality UHD images at a resolution of 3840x2160 pixels in 4K UHD, HDR. Image processing is implemented using modern High Dynamic Range (HDR) technology with an extended range of brightness gradations.
LE43K6500U TV has built-in SMART software and pre-installed Linux Operating System. Internet connection can be made via Wi-Fi wireless connection. Supported media file formats: MP3, WMA, MPEG4, HEVC (H.265), Xvid, DivX, MKV, JPEG.
Speaker sound system power 20 W (2x10 W) is provided by two speakers. Uses NICAM stereo processing system and Sound Surround function.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, VGA, HDMI x3, USB x2, Ethernet (RJ-45), Wi-Fi 802.11n. A headphone output is provided. The digital tuner is capable of receiving television channels in the DVB-T, DVB-T2, DVB-C, DVB-S, DVB-S2 standards.

The power supply unit TV5006-ZC02-02 is used.

Dimensions: with stand 966x620x250 mm, without stand 966x559x64 mm.

Attention! HAIER LE43K6500U LED TV panel LC430EGY-SKM3 is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable. 

REPAIRING / SERVICING TV HAIER LE43F1000U

Technical description and composition of the HAIER LE43F1000U TV, panel type and modules used. The composition of the modules.

Haier LED
Model: LE43F1000U

Chassis / Version: T.MS6488E.U731

Panel: CN430XB7240

LED backlight: K433030T030864J Rev1.1BC

LED driver (backlight): integrated into PSU

PWM LED driver: OB3368AP

Power Supply (PSU): AY090D-4SF01 3BS00729

MOSFET Power: TO-220

MainBoard: T.MS6488E.U731

IC MainBoard: K4B2G1646F-BYMA

Tuner: NoName

Specifications LE43F1000U
HAIER LE43F1000U
General recommendations for TV LCD LED repair
Possible manifestations of malfunctions

- Haier LE43F1000U TV does not turn on at all. No response to the remote control and front panel control buttons. Indicator lamps do not light up or flash.

In such cases, the power supply AY090D-4SF01 is usually defective. Its output voltages should be measured and, in their absence, the serviceability of the power switches (TO-220) and rectifier diodes in the converters should be checked for possible breakdown.
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in an emergency mode of short circuit without output voltages, and with a short circuit in the elements of the primary circuit, the mains fuse most often breaks off immediately and, less often, the current sensor in the source of the key.
Breakdown of Mos-Fet keys used in switching power supplies is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM controller, in frequency setting or damper circuits, as well as in negative feedback stabilization. PWM microcircuits (PWM) are usually checked by replacing them with new ones, or knowingly working.

- There is no picture, but there is sound and reaction to commands from the remote control. Or the image appears immediately after switching on and disappears.

As a rule, in this case, the backlight of the LED panel is faulty. Usually, the cause of the malfunction is in the breakage of the LEDs, or in the connectors of the K433030T030864J Rev1.1BC LED strips, but sometimes the LED driver is also faulty.
When trying to detect a break in the LED lines, it should be borne in mind that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.

If the HAIER LE43F1000U has no picture, but there is sound, often the CN430XB7240 display backlight simply does not work. Moreover, in LED TVs, the LEDs inside the panel usually fail, less often the LED driver.
In such cases, you can see a barely noticeable image when the ambient light hits the screen successfully.

Replacing the LEDs requires disassembling the CN430XB7240 LCD panel - a process that requires experience and qualifications from the master. We do not recommend doing such work on your own to owners of TVs and craftsmen who do not have experience in repairing LCD panels

If there is no image, and the backlight is on, the screen becomes slightly lighter when turned on, and in an open TV, light is visible through the holes in the panel case.
In this case, the panel may also be faulty - damage to strips, loops, for example, as a result of moisture ingress after unsuccessful washing of the screen, the T-CON (Timing Controller) board may be faulty. But often the main board MainBoard T.MS6488E.U731 turns out to be faulty, a software failure is also possible.
Then, first of all, you need to check the panel supply voltage, fuses on the T-CON board, as well as the supply and reference voltages of the column and line drivers - VGH, VGL, Vcom.
If these measurements are within the normal range, it is necessary to trace the passage of LVDS signals from the MainBoard T.MS6488E.U731 with an oscilloscope, as well as synchronization signals to the loops with drivers.

Flooded or unsuccessfully washed screens of LED TVs can be restored, in about half of the cases, usually if significant damage has not formed in the loops and panel strips.


- The TV does not turn on, the indicator signals the standby or operating mode, or blinks.

Repair or diagnostics of the T.MS6488E.U731 motherboard should begin with checking the stabilizers and power converters necessary to power the microcircuits and matrix. If necessary, you should update or replace the software (software). If it is not possible to replace the MB (SSB) board, it is necessary to check the serviceability of its elements - K4B2G1646F-BYMA. Defective components must be replaced.

If the TV works normally from external devices, but does not tune to TV channels, the NoName tuner may be faulty. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the reason for the inoperability of the tuner may be a software failure.

Attention! Users and owners of LE43F1000U TVs who do not have the appropriate qualifications, knowledge and experience are strongly discouraged from trying to repair themselves in order to avoid negative consequences that can lead to the complete non-repairability of the device.

 

Revision after repair of the backlight.

Decrease the backlight current from 460 mA to 365 mA - remove one of the 3 Ohm resistors (R555) in the backlight current sensor on the AY090D-4SF01 power supply board.
Limit the backlight current,

OB3368AP  General information

To reduce the backlight current in LED drivers in LED drivers with an OB3368AP controller, you should proportionally increase the total resistance of the resistors from pin 17 of ISET to the case. The current in milliamperes in each channel is determined from the calculation 4000 * 1.2 / Rset, where Rset is the resistance from the 17 ISET pin to the case in kilo-ohms.



 READ HOW TO REPAIR THE TV LED BACKLIGHT --------------> HERE.

The appearance of the MainBoard T.MS6488E.U731 is shown in the figure below:

T.MS6488E.U731

External view of the power supply

AY090D-4SF01:

AY090D-4SF01

The main features of the HAIER LE43F1000U device:

Installed matrix (LED panel) CN430XB7240.
To power the backlight LEDs, a converter combined with a power supply is used, controlled by the OB3368AP PWM controller.
The formation of the necessary supply voltages for all nodes of the HAIER LE43F1000U TV is carried out by the AY090D-4SF01 power module, or its analogs using power switches of the TO-220 type.
MainBoard - the main board (motherboard) is a T.MS6488E.U731 module, using K4B2G1646F-BYMA chips and others.

Tuner NoName provides reception of television programs and tuning to channels.



HAIER LE43F1000U TV with LCD display CN430XB7240, 42.5 "(108 cm) 16: 9 diagonal size. The required screen brightness of 240 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum brightness, is 1000: 1. The LCD panel of the TV is equipped with direct backlighting with LEDs located in the back - Direct LED.
The CN430XB7240 sensor and MainBoard T.MS6488E.U731 software realize high quality UHD images at 3840x2160 resolution in 4K UHD standard.
LE43F1000U TV is equipped with SMART software, built-in applications and the ability to work on the Internet. Internet connection can be made via Wi-Fi wireless connection. Supported media file formats: MP3, MPEG4, MKV, JPEG.
Speaker power 16 W (2x8 W) is provided by two speakers. Uses NICAM stereo processing system and Sound Surround function.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, VGA, HDMI x3, USB x3, Ethernet (RJ-45), Wi-Fi 802.11n. The digital tuner is capable of receiving television channels in the DVB-T, DVB-T2, DVB-C standards.

The power consumed by the TV operating in mains mode is 75 W. Power supply AY090D-4SF01.

Dimensions: with stand 967x605x206 mm, without stand 967x561x76 mm.

TV weight: 8.6 kg.

Attention! HAIER LE43F1000U LED TV panel CN430XB7240 is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.

REPAIRING / SERVICING TV HAIER LE39B8550T

Technical description and composition of the HAIER LE39B8550T TV, panel type and modules used. The composition of the modules.

HAIER LED
Model: LE39B8550T

Chassis / Version: MS34637-ZC01-01

Panel: LC390TA2A

LED backlight: LED39D07-ZC15AG-02 30339007031

LED driver (backlight): integrated into MainBoard

PWM LED driver: SO-8

MOSFET LED driver: TO-252

Power Supply (PSU): integrated into MainBoard

PWM Power: PWM SOT23-6

MOSFET Power: 70RJ8 TO-252

MainBoard: MS34637-ZC01-01

IC MainBoard: CPU: MSD3463GSA-SW, SPI Flash: GD25Q64, AUDIO, DC / DC

Tuner: NoName

Specifications LE39B8550T
HAIER LE39B8550T
General recommendations for TV LCD LED repair
Possible malfunctions

- HAIER LE39B8550T does not turn on and does not show any signs of operability at all. Does not blink indicators and does not respond to control buttons.

In such cases, the main power supply, the AC / DC converter of the mains voltage, which is combined with the MainBoard MS34637-ZC01-01, may be faulty. It is necessary to measure its output supply voltages, and in their absence, check the serviceability of the power switches (70RJ8 TO-252) of the converters and rectifier diodes for the probability of breakdown in semiconductor PN junctions.
In case of breakdowns in the secondary circuits, the converter can operate in short-circuit mode, and in case of short-circuit in the elements of the primary circuit, the mains fuse usually breaks off.
Breakdown of Mos-Fet keys used in switching power supplies is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM controller, in frequency setting or damper circuits, as well as in negative feedback stabilization. PWM microcircuits (PWM) PWM SOT23-6 are usually checked by replacing them with new ones, or known to be working properly.

- There is no image, the screen is black, there is sound, sometimes you can see barely noticeable outlines of the image in the ambient light of the screen.

The malfunction in most of these cases is found in the nodes and elements of the LED panel backlight. Most often the reason for this is a break in the LEDs, or poor contact in the connectors of the brackets, less often the LED driver may be faulty.
It should be remembered that it is not possible to determine an open circuit in the LED lines without disassembling the panels using a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required. Then you need to open the panel and check each LED separately with a multimeter. If the capabilities of your multimeter do not allow opening the LED in the forward direction or dual LEds are used, then the PN transition of the emergency zener diode can indirectly serve as an indicator of serviceability. In the event of a malfunction of the LED-a, the PN junction of the Zener diode will either be cut off, or broken through in the K / Z.


If the HAIER LE39B8550T has no picture, but there is sound, often the LC390A2A display backlight simply does not work. Moreover, in LED TVs, the LEDs inside the panel usually fail, less often the LED driver.
In such cases, you can see a barely noticeable image with a successful hit of external light on the screen.

Replacing the LEDs requires disassembling the LC390A2A LCD panel, a process that requires experience and qualifications from the technician. We do not recommend doing such work on your own to TV owners and craftsmen who do not have experience in repairing LCD panels

If there is no image, and the backlight is on, the screen becomes slightly lighter when turned on, and in an open TV you can see light through the holes in the panel case.
In this case, the panel may also be faulty - damage to strips, loops, for example, as a result of moisture ingress after unsuccessful washing of the screen, the T-CON (Timing Controller) board may be faulty. But the main board MainBoard MS34637-ZC01-01 often turns out to be faulty, a software failure is also possible.
Then, first of all, you need to check the panel supply voltage, the fuses on the T-CON board, as well as the supply and reference voltages of the column and line drivers - VGH, VGL, Vcom.
If these measurements are within normal limits, it is necessary to trace the passage of LVDS signals from the MainBoard MS34637-ZC01-01 with an oscilloscope, as well as synchronizing signals to the loops with drivers.

Flooded or unsuccessfully washed screens of LED TVs can be restored, in about half of the cases, usually if significant damage has not formed in the loops and panel strips. 

READ HOW TO REPAIR THE TV LED BACKLIGHT --------------> HERE.

- The TV does not turn on, the indicator signals the standby or operating mode, or blinks.

Repair or diagnostics of the MS34637-ZC01-01 motherboard should begin with checking the stabilizers and power converters required to power the microcircuits and matrix. If necessary, you should update or replace the software (software). Complicated repair of MB (SSB) board is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace the elements of the CPU, SPI Flash, AUDIO, DC / DC. Malfunctions in BGA chips are usually easy to detect by warm-up.

In cases where there is no tuning for terrestrial or cable TV channels, you should make sure that the software is correct, as well as in accordance with the nominal supply voltages at the NoName tuner terminals. It is also necessary to check with an oscilloscope the presence of pulses of data exchange between the tuner and the processor via the I2C bus.

Attention to TV owners! Attempts to repair the HAIER LE39B8550T by yourself are not recommended by the manufacturer and can lead to serious negative consequences!

Additional MainBoard Repair

The appearance of the MainBoard MS34637-ZC01-01 is shown in the figure below:

MS34637-ZC01-01

The main features of the HAIER LE39B8550T device:

Installed matrix (LED panel) LC390TA2A.
To power the backlight LEDs, a converter combined with the MS34637-ZC01-01 main board is used, controlled by the SO-8 PWM controller. TO-252 switches are used as power elements of the LED driver.
The power module is combined with the MainBoard and is made according to the AC / DC flyback voltage converter using SOT23-6 PWM microcircuits and 70RJ8 TO-252 power switches.



MainBoard - the main board (motherboard) is a MS34637-ZC01-01 module using CPU chips: MSD3463GSA-SW, SPI Flash: GD25Q64, AUDIO, DC / DC and others.
Tuner NoName provides reception of television programs and tuning to channels.



TV HAIER LE39B8550T with LCD LC390A2A, diagonal 39 "(99 cm) in 16: 9 format. The required screen brightness of 220 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 3000: 1. The LED panel of this TV is equipped with edge LED backlighting.
The LC390A2A sensor and MainBoard MS34637-ZC01-01 software realize HD image quality at a resolution of 1366x768 pixels in 720p (HD Ready). Supported media file formats: MP3, WMA, MKV, JPEG.
Speaker power 16 W (2x8 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, VGA, HDMI x2, USB. A headphone output is provided. The digital tuner is capable of receiving television channels in the DVB-T, DVB-T2, DVB-C standards.

The power supply is used as part of the MainBoard.

Dimensions: with stand 885x558x200 mm, without stand 885x507x71 mm.

TV weight: with stand: 6.5 kg, without stand: 6.4 kg.

Attention! The LC390A2A panel of the HAIER LE39B8550T LED TV is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.

REPAIR / SERVICING TV HAIER LE55K6500U

Technical description and composition of the HAIER LE55K6500U TV, type of panel and applicable modules. The composition of the modules.
HAIER LED
Model: LE55K6500U
Chassis / Version: T.MS6586.U801
Panel: LSC550FN11
LED backlight: LED55D05A-ZC23AG-06, LED55D05B-ZC23AG-06
LED driver (backlight): integrated into MainBoard
Power Supply (PSU): TV5006-ZC02-02
PWM Power: PWM SOT23-6
MOSFET Power: TO-220
MainBoard: T.MS6586.U801
IC MainBoard: CPU, NAND Flash, DDR
Tuner: DVB-T2 & SAT
Technical Specifications LE55K6500U
HAIER LE55K6500U
General repair guidelines for TV LCD LED
Possible malfunctions
- The HAIER LE55K6500U TV does not turn on, does not respond to the remote control and the control panel buttons, the indicators do not light or flash.
In some of these cases, the main switching power supply, the TV5006-ZC02-02 module, is faulty. It is then necessary to measure its output voltages and, if they are absent, you should check the power switches (TO-220) and the rectifier diodes of the converters for a short circuit probability.
In case of breakdowns in the secondary circuits, the converter, as a rule, can emergency work in the short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse usually breaks.
Breakdown of power switches (MosFet) in pulsed sources is sometimes caused by malfunctions of other circuit elements, for example, in circuits supplying a PWM controller, frequency-setting or damper ones, as well as in negative feedback circuits (OOS) of stabilization. PWM controllers (PWM) PWM SOT23-6, if they do not have visible damage to the case and open short circuit between the terminals, are usually checked by replacement.
- There is no image, there is sound, it is responding to the remote control. Or immediately after turning on for a second, the image may appear and immediately disappear.
In most of these cases, a malfunction is detected in the nodes and backlight elements of the LED panel. The reason may be a break in the LEDs, in the stabilization of their power supply, or in the violation of the contact connections of the thong connectors,
It is impossible to check the LED line for breaks without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts will be required, and ideally, a current source. Having disassembled the panel, it is necessary to check each LED separately. Chinese multimeters, as a rule, light up a single 3-volt LED in the forward direction. In the case of using dual 6-volt LEDs, the PN junction of its protective zener diode can serve as a health indicator. In faulty LEDs, the zener diode will either be cut off or broken into short-circuit.
- The TV does not turn on, the indicator indicates standby or operating mode, or blinks.
Repair or diagnostics of the T.MS6586.U801 motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). Board repair and replacement of CPU, NAND Flash, DDR microcircuits are carried out with the necessary equipment, and the corresponding element base. Faults associated with the application of BGA processor soldering technologies can be localized by the heating method.
If there is no reception of television channels, but the TV works properly from external devices, first of all, check the voltage of the DVB-T2 & SAT tuner and update the software. The pulses from the I2C bus must be controlled with an oscilloscope.

It should be remembered! Attempts to independently repair the HAIER LE55K6500U TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!

The appearance of MainBoard T.MS6586.U801 is shown in the figure below:
T.MS6586.U801
The appearance of the power supply
Key Features of HAIER LE55K6500U:
Installed matrix (LED-panel) LSC550FN11.
To power the backlight LEDs, a converter is used, combined with the T.MS6586.U801 main board.
The necessary supply voltages for all nodes of the TV HAIER LE55K6500U are generated by the TV5006-ZC02-02 power module, or its analogs using PWM SOT23-6 microcircuits and TO-220 type power switches.
MainBoard - the main board (motherboard) is a module T.MS6586.U801, using CPU chips, NAND Flash, DDR and others.
The DVB-T2 & SAT tuner allows you to receive television programs and tune to channels.

Brand: HAIER, Model: LE55K6500U.
Briefly from the TV: LCD, LED backlight, 54.6 ", 3840x2160, 4K UHD, HDR, DVR, there is a satellite tuner, sound: 20W, HDMI: 3, Internet access, Wi-Fi, Smart TV.
Manufacturer: TPV ICS Russia, Shushary, St. Petersburg and Qingdao Haier Industry Zone (China).
Developer: Haier Group Corporation. Qingdao (Qingdao). China
The composition uses MainBoard T.MS6586.U801 and LCD-panel LSC550FN11.
Power Supply Unit (PSU) TV5006-ZC02-02 Power Supply.
HAIER LE55K6500U TV with LSC550FN11 LCD, 54.6 "(139 cm) diagonal of 16:10 format. The required screen brightness of 300 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 3000: 1. The LCD panel of the TV has direct backlighting with rear LEDs - Direct LED. You can watch movies in the highest possible quality UHD with a resolution of 3840x2160 pixels in the standard 4K UHD, HDR. Image processing is performed using advanced High Dynamic Range (HDR) technology with wider range of gradations of brightness.
The LE55K6500U TV has built-in SMART Software and pre-installed Linux Operating System. Connecting to the Internet can be done via Wi-Fi. Supported media file formats: MP3, WMA, MPEG4, HEVC (H.265), Xvid, DivX, MKV, JPEG.
The power of the sound system 20 W (2x10 W) provides two speakers. It uses a NICAM stereo signal processing system and Sound Surround.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, HDMI x3, USB x2, Ethernet (RJ-45), Wi-Fi 802.11n. An output for connecting headphones is provided.
The digital tuner is capable of receiving television channels in the standards DVB-T MPEG4, DVB-C, DVB-T2, DVB-S2.
Overall dimensions: with stand 1239x777x313 mm, without stand 1239x715x62 mm.
TV Weight: with stand: 13.4 kg, without stand: 13.1 kg.
Attention! The LSC550FN11 panel of a HAIER LE55K6500U LED TV is an expensive and unreliable element.
Avoid any impact on the glass and pressure on the surface of the screen to avoid damage to the LED panel!
It is also unsafe to get liquid on the screen. Sometimes one drop is enough if it flows down the glass onto the cables so that the TV becomes unrepairable.

REPAIR / SERVICING TV HAIER LE50U6500TF

Technical description and composition of the HAIER LE50U6500TF TV, type of panel and applicable modules. The composition of the modules.
HAIER LED
Model: LE50U6500TF
Chassis / Version: T.MS6486.751
Panel: V500HJ1-PE8 rev.C7
T-CON: V500HJ1-PE8 rev.C7
LED driver (backlight): integrated into PSU
PWM LED driver: OCP8128
MOSFET LED driver: 60R360Q
Power Supply (PSU): TV5502-ZC02-01
PWM Power: TEA1716, SY8113B
MOSFET Power: 13NM60 (PFC), BYC8X-600P
MainBoard: T.MS6486.751
IC MainBoard: NAND: MX30LF4G18AC-TI, DRAM: NT5CB256M16DP-EK, WIFI-2-M603USA1
Tuner: DVB-T, DVB-T2, DVB-C
Control: Remote: HTR-A18EU
Technical Specifications LE50U6500TF
HAIER LE50U6500TF
General repair guidelines for TV LCD LED
Possible manifestations of defects
- The HAIER LE50U6500TF does not turn on at all. There is no reaction to the remote control and front-panel control buttons. Indicator lights do not light or flash.
With similar manifestations, in some cases, the TV5502-ZC02-01 power module is faulty. It is necessary to measure its output voltages, and in case of their absence, check the operability of power switches (13NM60 (PFC), BYC8X-600P) of converters and rectifier diodes for a short circuit probability.
In case of breakdowns of semiconductors in the secondary circuits, the converter can usually work abnormally in the short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse often breaks.
Mos-Fet power switches, used in switching power supplies, sometimes fail due to a malfunction of any other elements that can put it out of operation in key mode or create an excess of the maximum permissible parameters of the switch. These can be elements supplying the PWM controller, frequency-setting or damping circuits, or negative feedback elements in the stabilization circuit. PWM controllers TEA1716, SY8113B, in the absence of visible damage or obvious short-circuit between the terminals, are checked by replacing with new, or obviously working.
- There is no image, there is sound, all other functions of the TV work. When turned on, the image may sometimes appear for a second.
As a rule, in this case, the LED backlight turns out to be faulty. More often the reason for this is the breakdown of the LEDs, or poor contact in the connectors of the strips, less often the LED driver may be malfunctioning.
It is impossible to check the LED line for breaks without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts will be required, and ideally, a current source. Having disassembled the panel, it is necessary to check each LED separately. Chinese multimeters, as a rule, light up a single 3-volt LED in the forward direction. In the case of using dual 6-volt LEDs, the PN junction of its protective zener diode can serve as a health indicator. In faulty LEDs, the zener diode will either be cut off or broken into short-circuit.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals standby mode.
Repair or diagnostics of the T.MS6486.751 motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). Sometimes it is necessary to check or replace (if necessary) the elements of the MainBoard board - WIFI-2-M603USA1, DRAM: NT5CB256M16DP-EK. In cases where the BGA processor is used, its malfunction is usually detected by the local heating method.
In the absence of tuning to the channels of on-air or cable television, you should make sure that the software is correct, as well as in accordance with the ratings of the supply voltage at the terminals of the DVB-T, DVB-T2, DVB-C tuner. It is also necessary to check the presence of pulses of data exchange between the tuner and the processor via the I2C bus using an oscilloscope.

Attention TV owners! Attempts at self-repair HAIER LE50U6500TF are not recommended by the manufacturer and can lead to serious negative consequences!

SCHEMATIC DIAGRAM  / PSU    ------------------>    TV5502-ZC02-01 Power supply

 The appearance of MainBoard T.MS6486.751 is shown in the figure below:
T.MS6486.751
The appearance of the power supply
Key Features of HAIER LE50U6500TF:
Installed matrix (LED-panel) V500HJ1-PE8 rev.C7.
The matrix control uses the Timing Controller (T-CON) V500HJ1-PE8.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the OCP8128 PWM controller. As power elements of the LED driver, keys of the 60R360Q type are used.
The necessary supply voltages for all nodes of the TV HAIER LE50U6500TF are generated by the TV5502-ZC02-01 power supply module or its analogs using TEA1716, SY8113B microchips and 13NM60 (PFC), BYC8X-600P type power switches.
MainBoard - the main board (motherboard) is a T.MS6486.751 module, using NAND chips: MX30LF4G18AC-TI, DRAM: NT5CB256M16DP-EK, WIFI-2-M603USA1 and others.
The tuner DVB-T, DVB-T2, DVB-C provides the reception of television programs and tuning to channels.


 HAIER LE50U6500TF TV with V500HJ1-PE8 LCD, 50 "(127 cm) diagonal, 16: 9 format. The required screen brightness of 300 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 4000000: 1 is achieved by special control of the LEDs. V The LED panels of this TV are equipped with edge LED backlighting - Edge LED.The design and technical capabilities of the TV include watching programs and movies in high quality HD at a resolution of 1920x1080 pixels in a graphical decomposition according to the standard 1080p (Full HD).
The LE50U6500TF is equipped with SMART software, embedded applications and the ability to work on the Internet. Connecting to the Internet can be done via Wi-Fi. Supported media file formats: MP3, MPEG4, MKV, JPEG.
The power of the sound system 20 W (2x10 W) provides two speakers. The audio processing system NICAM STEREO is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, VGA, HDMI x3, USB x3, Ethernet (RJ-45), Wi-Fi. An output for connecting headphones is provided.
A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
Overall dimensions: with stand 1124x710x238 mm, without stand 1124x649x54 mm.
TV Weight: with stand: 13.8 kg, without stand: 13.4 kg.
Attention! The panel V500HJ1-PE8 rev.C7 of the HAIER LE50U6500TF LED TV is an expensive and unreliable element.
Avoid any impact on the glass and pressure on the surface of the screen to avoid damage to the LED panel!
It is also unsafe to get liquid on the screen. Sometimes one drop is enough if it flows down the glass onto the cables so that the TV becomes unrepairable.

REPAIR / SERVICING TV HAIER LE50K6500U

Technical description and composition of the HAIER LE50K6500U TV, type of panel and applicable modules. The composition of the modules.
HAIER LED
Model: LE50K6500U
Chassis / Version: T.MS6586.U801
Panel: V500DJ6-QE1
LED backlight: LED49D05A-ZC23AG-03 30349005202, LED49D05B-ZC23AG-03 30349005203
T-CON: INNOLUX EATDJ6E11
LED driver (backlight): integrated into PSU
Power Supply (PSU): TV5006-ZC02-02 E021M289-Q1
MainBoard: T.MS6586.U801
IC MainBoard: CPU, NAND Flash, DDR
Control: IR: TV5550-ZC25-01 (C) 303C5550233
Technical Specifications LE50K6500U
HAIER LE50K6500U
General repair guidelines for TV LCD LED
Possible manifestations of defects
- The HAIER LE50K6500U does not turn on at all. The control lights do not light or flash. The TV on the remote control and the control panel buttons do not respond.
Most often, with such manifestations, the main power supply module TV5006-ZC02-02 is found to be faulty. It is necessary to measure its output supply voltage, and in case of their absence, check the serviceability of the power switches of the converters and rectifier diodes for the probability of breakdown in semiconductor PN junctions.
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in emergency short-circuit mode without output voltages, and during short circuit in the elements of the primary circuit, the main fuse and, less often, the current sensor at the source of the key are most often cut off.
Mos-Fet power switches, used in switching power supplies, sometimes fail due to a malfunction of any other elements that can put it out of operation in key mode or create an excess of the maximum permissible parameters of the switch. These can be elements supplying the PWM controller, frequency-setting or damping circuits, or negative feedback elements in the stabilization circuit. PWM controllers, in the absence of visible damage or frank short-circuit between the terminals, are checked by replacing with new, or obviously working.
- There is no image, but there is sound and reaction to commands from the remote control. Or the image appears immediately after turning on and disappears.
In such cases, the most likely malfunction of the LED backlight elements. The reason can be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
It is impossible to detect a break in the LED line without disassembling the panel with a simple multimeter. The LEDs are connected in series and to open their transitions, a voltage of several tens of volts is required. Ideally, a current source is suitable for such purposes. You can open the panel and check each LED separately. Typically, Chinese multimeters light up a single 3-volt LED, if you connect the probes in the forward direction to it (red probe to the anode, black to the cathode). In dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of health. In the event of a LED malfunction, its zener diode will either be cut off or broken into short-circuit.
- The indicator on the front panel blinks, the TV does not turn on in the operating mode, it does not respond to the remote control.
Repair or diagnostics of the T.MS6586.U801 motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software).

TV users and owners need to remember that attempts to self-repair a HAIER LE50K6500U TV without the appropriate qualifications and necessary experience can lead to serious negative consequences!

The appearance of MainBoard T.MS6586.U801 is shown in the figure below:
T.MS6586.U801
The appearance of the power supply
Key Features of HAIER LE50K6500U:
Installed matrix (LED-panel) V500DJ6-QE1.
The matrix control uses the Timing Controller (T-CON) INNOLUX.
To power the backlight LEDs, a converter is used, combined with a power supply.
The formation of the necessary supply voltages for all nodes of the HAIER LE50K6500U TV is carried out by the TV5006-ZC02-02 power module, or its analogs.
MainBoard - the main board (motherboard) is a module T.MS6586.U801, with the use of CPU chips, NAND Flash, DDR and others.

Brand: HAIER, Model: LE50K6500U.
Briefly from the TV: LCD, LED backlight, 49.5 ", 3840x2160, 4K UHD, HDR, DVR, satellite tuner, sound: 20W, HDMI: 3, Internet access, Wi-Fi, Smart TV.
Manufacturer: TPV ICS Russia, Shushary, St. Petersburg and Qingdao Haier Industry Zone (China).
Developer: Haier Group Corporation. Qingdao (Qingdao). China
The composition uses MainBoard T.MS6586.U801 and LCD-panel V500DJ6-QE1.
Power Supply Unit (PSU) TV5006-ZC02-02 Power Supply.
HAIER LE50K6500U TV with V500DJ6-QE1 LCD, 49.5 "(126 cm) diagonal of 16:10 format. The required screen brightness of 280 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 3000: 1. Direct LED backlighting with direct LEDs is realized in the LCD panel of the TV, it is possible to watch movies in the highest possible UHD quality with a resolution of 3840x2160 pixels in the 4K UHD, HDR standard. Image processing is performed using modern High Dynamic Range (HDR) technology with expansion nnym range of brightness levels.
The LE50K6500U TV has built-in SMART Software and pre-installed Linux Operating System. Connecting to the Internet can be done via Wi-Fi. Supported media file formats: MP3, WMA, MPEG4, HEVC (H.265), Xvid, DivX, MKV, JPEG.
The power of the sound system 20 W (2x10 W) provides two speakers. It uses a NICAM stereo signal processing system and Sound Surround.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, VGA, HDMI x3, USB x2, Ethernet (RJ-45), Wi-Fi 802.11n. An output for connecting headphones is provided.
The digital tuner is capable of receiving television channels in the standards DVB-T MPEG4, DVB-C, DVB-T2, DVB-S2.
The power consumed by the TV working in the network mode is 136 watts.
Overall dimensions: with stand 1124x711x314 mm, without stand 1124x650x62 mm.
Mass of the TV: 11.1 kg.
Attention! The panel V500DJ6-QE1 of the HAIER LE50K6500U LED TV is an expensive and unreliable element.
Avoid any impact on the glass and pressure on the surface of the screen to avoid damage to the LED panel!
It is also unsafe to get liquid on the screen. Sometimes one drop is enough if it flows down the glass onto the cables so that the TV becomes unrepairable.

REPAIR / SERVICING TV HAIER LE50K5500TF

Technical description and composition of the HAIER LE50K5500TF TV, type of panel and applicable modules. The composition of the modules.
HAIER LED
Model: LE50K5500TF
Chassis / Version: T.MS6486.751
Panel: V500HJ1-PE8
LED backlight: LED50D06-ZC14AG-01 30350006205
LED driver (backlight): integrated into PSU
PWM LED driver: OCP8128
MOSFET LED driver: 60R360Q
Power Supply (PSU): TV5502-ZC02-01
PWM Power: TEA1716, SY8113B
MOSFET Power: BYC8X-600P, 13NM60 (PFC)
MainBoard: T.MS6486.751
IC MainBoard: NAND: MX30LF4G18AC-TI, DRAM: NT5CB256M16DP-EK, WIFI-2-M603USA1
Tuner: DVB-T, DVB-T2, DVB-C
Technical Specifications LE50K5500TF
HAIER LE50K5500TF
General repair guidelines for TV LCD LED
Possible manifestations of defects
- The HAIER LE50K5500TF TV does not turn on, does not respond to the remote control and the control panel buttons, does not light up or blink indicators.
In such cases, the TV5502-ZC02-01 power supply is usually faulty. It is necessary to measure its output voltages, and in case of their absence (full or partial), it is necessary to check the serviceability of power switches (BYC8X-600P, 13NM60 (PFC)) of converters and rectifier diodes for possible short circuit.
In the event of breakdowns in the secondary circuits of the converter, it can usually fail in short circuit mode, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse or current sensor at the source of the key most often breaks.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM controller, in frequency-setting or damping circuits, as well as in Negative Stabilization Feedback. Chips PWM (PWM) TEA1716, SY8113B are usually checked by replacing with new, or obviously working.
- There is no image, but there is sound and reaction to the remote control. Or for a second, the image may appear immediately after switching on.
Usually in such cases, a malfunction is detected in the backlight nodes of the LED panel. The reason can be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
It should be remembered that it is not possible to determine the open circuit in the LED lines without disassembling the panels with a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required. Then it is necessary to open the panel and check each LED separately with a multimeter. If the capabilities of your multimeter do not allow you to open the LED in the forward direction or dual LEd are used, then the PN junction of the emergency zener diode can indirectly serve as a health indicator. In case of LED-a malfunction, the zener diode PN junction will either be cut off or broken into short-circuit.
- The TV does not turn on, the indicator indicates standby or operating mode, or blinks.
Repair or diagnostics of the T.MS6486.751 motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). Sometimes they require checking or replacing (if necessary) the elements of the MainBoard - WIFI-2-M603USA1. In cases where the BGA processor is used, its malfunction is usually detected by local heating.
If you suspect a malfunction of the DVB-T, DVB-T2, DVB-C tuner, first of all, it is necessary to verify the correctness of the software, as well as the presence of the necessary voltage levels and pulses of data exchange with the processor via the I2C bus at the corresponding terminals of the tuner.

It should be remembered! Attempts to independently repair the HAIER LE50K5500TF TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!

SCHEMATIC DIAGRAM  / PSU   ------------------>    TV5502-ZC02-01 Power supply

 The appearance of MainBoard T.MS6486.751 is shown in the figure below:
T.MS6486.751
The appearance of the power supply
Key Features of HAIER LE50K5500TF:
Installed matrix (LED-panel) V500HJ1-PE8.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the OCP8128 PWM controller. As power elements of the LED driver, keys of the 60R360Q type are used.
The necessary supply voltages for all nodes of the TV HAIER LE50K5500TF are generated by the TV5502-ZC02-01 power supply module or its analogs using TEA1716, SY8113B microchips and power switches of the BYC8X-600P, 13NM60 (PFC) type.
MainBoard - the main board (motherboard) is a T.MS6486.751 module, using NAND chips: MX30LF4G18AC-TI, DRAM: NT5CB256M16DP-EK, WIFI-2-M603USA1 and others.
The tuner DVB-T, DVB-T2, DVB-C provides the reception of television programs and tuning to channels.


 Brand: HAIER, Model: LE50K5500TF.
Briefly from the TV: LCD, LED backlight, 50 ", 1920x1080, 1080p Full HD, DVR, sound: 20W, HDMI: 3, Internet access, Wi-Fi, Smart TV.
The composition uses MainBoard T.MS6486.751 and LCD-panel V500HJ1-PE8.
Power Supply Unit (PSU) TV5502-ZC02-01 Power Supply.
HAIER LE50K5500TF TV with V500HJ1-PE8 LCD, 50 "(127 cm) diagonal size 16: 9 format. The required screen brightness of 280 cd / m² is provided by LED backlighting. Contrast ratio as the ratio of maximum brightness to minimum is 3000: 1. Dynamic contrast of 3,000,000: 1 is achieved by special control of the LEDs. The LED screen technology is implemented in the manufacturing technology of the screen of this TV model. The design and technical capabilities of the TV include watching programs and movies in high HD quality at a resolution of 1920x1080 pixels in the graphic decomposition according to the standard 1080p (Full HD).
The LE50K5500TF is equipped with SMART software, embedded applications and the ability to work on the Internet. Connecting to the Internet can be done via Wi-Fi. Supported media file formats: MP3, MPEG4, JPEG.
The power of the sound system 20 W (2x10 W) provides two speakers. It uses a NICAM stereo signal processing system and Sound Surround.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, VGA, HDMI x3, USB x2, Ethernet (RJ-45), Wi-Fi. An output for connecting headphones is provided.
A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
Overall dimensions: with stand 1085x677x244 mm, without stand 1085x633x72 mm.
TV Weight: with stand: 13.8 kg, without stand: 10.4 kg.
Attention! The panel V500HJ1-PE8 of the HAIER LE50K5500TF LED TV is an expensive and unreliable element.
Avoid any impact on the glass and pressure on the surface of the screen to avoid damage to the LED panel!
It is also unsafe to get liquid on the screen. Sometimes one drop is enough if it flows down the glass onto the cables so that the TV becomes unrepairable.

REPAIR / SERVICING TV HAIER LE48U5000TF

Technical description and composition of the HAIER LE48U5000TF TV, type of panel and applicable modules. The composition of the modules.
HAIER LED
Model: LE48U5000TF
Chassis / Version: MS34630-ZC01-01
Panel: LSC480HN08-802
LED backlight: LE48D8-03 D
T-CON: 15Y_L48GF11BMB7S4LV0.6
LED driver (backlight): integrated into PSU
PWM LED driver: OCP8128
MOSFET LED driver: 60R360Q
Power Supply (PSU): TV5502-ZC02-01
PWM Power: TEA1716, SY8113B
MOSFET Power: 13NM60 (PFC), BYC8X-600P
MainBoard: MS34630-ZC01-01
IC MainBoard: SPI Flash: 25L6405D
Tuner: DVB-T, DVB-T2 & SAT
Technical Specifications LE48U5000TF
HAIER LE48U5000TF
General repair guidelines for TV LCD LED
Possible malfunctions
- The HAIER LE48U5000TF does not turn on at all. There is no reaction to the remote control and front-panel control buttons. Indicator lights do not light or flash.
Most often, with such manifestations, the TV5502-ZC02-01 main power module is found to be faulty. It is necessary to measure its output voltages, and if they are absent (full or partial), the power switches (13NM60 (PFC), BYC8X-600P) of the converters and rectifier diodes should be checked for possible short circuit.
In case of breakdowns in the secondary circuits, the converter, as a rule, can emergency work in the short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse usually breaks.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can put it out of operation in key mode or provoke an excess of the maximum current or voltage. These can be circuits supplying the PWM controller, damping or frequency-setting circuits, or elements of OOS (negative feedback) in the stabilization circuit. PWM controllers (PWM) TEA1716, SY8113B, in the absence of external damage and short circuit between the terminals, are checked by replacing with obviously good ones.
- There is no image, there is sound, it responds to the remote control. Or the image may appear for a second when turned on and immediately disappears.
Often in such cases, there is no LED backlight. The reason can be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
It is impossible to detect a break in the LED line without disassembling the panel with a simple multimeter. The LEDs are connected in series and to open their transitions, a voltage of several tens of volts is required. Ideally, a current source is suitable for such purposes. You can open the panel and check each LED separately. Typically, Chinese multimeters light up a single 3-volt LED, if you connect the probes in the forward direction to it (red probe to the anode, black to the cathode). In dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of health. In the event of a LED malfunction, its zener diode will either be cut off or broken into short-circuit.
- The indicator blinks or lights constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the motherboard MS34630-ZC01-01 should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). In cases of attempts to repair the MB board (SSB), you need to check the health of its elements - SPI Flash: 25L6405D which may require replacement with new ones. If a BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its conclusions with the board (it is diagnosed by heating).
Before changing the DVBT & SAT tuner, if it is not possible to tune to television channels, you should make sure that there are supply voltages that must be measured at the corresponding tuner pins and check the software for correctness. The pulses of the data exchange of the tuner with the processor can be controlled by an oscilloscope

We recommend LE48U5000TF TV owners to be repaired only by qualified specialists with the necessary work experience! Self-repair attempts without the appropriate knowledge and skills can lead to irreversible negative consequences!

SCHEMATIC DIAGRAM  / PSU   ------------------>    TV5502-ZC02-01 Power supply


FIRMWARE FOR SPI FLASH ---------------->  HAIER LE48U5000TF, Main: MS34630-ZC01-01, Panel: LSC480HN08-802

 The appearance of the MainBoard MS34630-ZC01-01 is shown in the figure below:
MS34630-ZC01-01
The appearance of the power supply
Key Features of HAIER LE48U5000TF:
Installed matrix (LED panel) LSC480HN08-802.
The matrix control uses the Timing Controller (T-CON) 15Y_L48GF11BMB7S4LV0.6.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the OCP8128 PWM controller. As power elements of the LED driver, keys of the 60R360Q type are used.
The necessary supply voltages for all nodes of the HAIER LE48U5000TF TV are generated by the TV5502-ZC02-01 power supply module or its analogs using TEA1716, SY8113B microchips and 13NM60 (PFC), BYC8X-600P type power switches.
MainBoard - the main board (motherboard) is an MS34630-ZC01-01 module, using SPI Flash chips: 25L6405D and others.
Tuner DVB-T, DVB-T2 & SAT provides reception of television programs and tuning to channels.


 HAIER LE48U5000TF TV with LSC480HN08-8 LCD display, 48 "(122 cm) diagonal size in 16: 9 format. The required screen brightness of 300 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 4000: 1. Direct LED backlighting with Direct LEDs is realized in the LCD panel of the TV. The design and technical capabilities of the TV include watching programs and movies in high quality HD at a resolution of 1920x1080 pixels in a graphic resolution of 1080p (Full HD). Supported media file formats: MP3, MPEG4, MKV, JPEG.
The power of the sound system 20 W (2x10 W) provides two speakers. It uses a NICAM stereo signal processing system and Sound Surround.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, VGA, HDMI x3, USB.
A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
The power consumed by the TV working in the network mode is 98 watts.
Overall dimensions: with stand 1083x674x238 mm, without stand 1083x631x69 mm.
The mass of the TV: 10 kg.
Attention! The panel of the LSC480HN08-8 HAIER LE48U5000TF LED TV is an expensive and unreliable element.
Avoid any impact on the glass and pressure on the surface of the screen to avoid damage to the LED panel!
It is also unsafe to get liquid on the screen. Sometimes one drop is enough if it flows down the glass onto the cables so that the TV becomes unrepairable.

REPAIR / SERVICING TV HAIER LE48M7000

Technical description and composition of the HAIER LE48M7000 TV, type of panel and applicable modules. The composition of the modules.
HAIER LED
Model: LE48M7000 LE48M7000CF
Chassis / Version: T.SIS231.T701
Panel: LSC480HN05 HK480WLEDM-MH12H
LED backlight: 3BL-T5324102-001B 6049140001 JS-JY53EKAD-0007
T-CON: 13VNB_S60TMB4C4LV0.0
LED driver (backlight): integrated into PSU
Power Supply (PSU): 401-2E201-D4201 (HKL-390201)
MainBoard: T.SIS231.T701 & B.AML8726MX.2
IC MainBoard: SPI Flash: 25Q64B, Audio: NTP8212
Tuner: NoName
Control: IR: 39B7 IR PCB V3.0 6003050499
Technical specifications LE48M7000
HAIER LE48M7000
General repair guidelines for TV LCD LED
Possible malfunctions
- HAIER LE48M7000 does not turn on and does not show any signs of performance at all. Does not blink indicators and does not respond to control buttons.
In some of these cases, the main switching power supply, module 401-2E201-D4201, is found to be faulty. Then it is necessary to measure its output voltages and, in case of their complete or partial absence, it is necessary to check the serviceability of power switches and rectifier diodes of the converters for a possible short circuit.
In case of breakdowns in the secondary circuits, the converter, as a rule, can emergency work in the short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse usually breaks.
Mos-Fet power switches, used in switching power supplies, sometimes fail due to a malfunction of any other elements that can put it out of operation in key mode or create an excess of the maximum permissible parameters of the switch. These can be elements supplying the PWM controller, frequency-setting or damping circuits, or negative feedback elements in the stabilization circuit. PWM controllers, in the absence of visible damage or frank short-circuit between the terminals, are checked by replacing with new, or obviously working.
- There is no image, there is sound, it is responding to the remote control. Or immediately after turning on for a second, the image may appear and immediately disappear.
In some of these cases, the malfunction is caused by a lack of backlighting on the display. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
It is impossible to detect a break in the LED line without disassembling the panel with a simple multimeter. The LEDs are connected in series and to open their transitions, a voltage of several tens of volts is required. Ideally, a current source is suitable for such purposes. You can open the panel and check each LED separately. Typically, Chinese multimeters light up a single 3-volt LED, if you connect the probes in the forward direction to it (red probe to the anode, black to the cathode). In dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of health. In the event of a LED malfunction, its zener diode will either be cut off or broken into short-circuit.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals standby mode.
Repair or diagnostics of the T.SIS231.T701 motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). Often, the MB (SSB) card must be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - SPI Flash: 25Q64B, Audio: NTP8212 and replace failed chips with new ones. Some malfunctions may be due to the use of BGA soldering technologies in modern Main Board technologies. Typically, such defects are detected by local heating of the chip.
Before changing the NoName tuner, if it is not possible to tune to television channels, make sure that there are supply voltages that must be measured at the corresponding tuner pins and check the software for correctness. The pulses of the data exchange of the tuner with the processor can be controlled by an oscilloscope

Attention to users! Self-repair of the HAIER LE48M7000 TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!


FIRMWARE FOR SPI FLASH ---------------->  HAIER LE48M7000CF, Main: T.SIS231.T701, Panel: LSC480HN05

The appearance of MainBoard T.SIS231.T701 is shown in the figure below:
T.SIS231.T701
The appearance of the power supply
Key Features of HAIER LE48M7000:
Installed matrix (LED-panel) LSC480HN05 HK480WLEDM-MH12H.
The matrix control uses the Timing Controller (T-CON) 13VNB_S60TMB4C4LV0.0.
To power the backlight LEDs, a converter is used, combined with a power supply.
The formation of the necessary supply voltages for all nodes of the HAIER LE48M7000 TV is carried out by the power module 401-2E201-D4201, or its analogues.
MainBoard - the main board (motherboard) is a T.SIS231.T701 module, using SPI Flash chips: 25Q64B, Audio: NTP8212 and others.
The NoName tuner provides television reception and channel tuning.


Brand: HAIER, Model: LE48M7000.
Briefly from the TV: LCD, LED backlight, 48 ", 1920x1080, 1080p Full HD, DVR, sound: 32W, HDMI: 4, Internet access, Wi-Fi, Smart TV.
The composition uses MainBoard T.SIS231.T701 & B.AML8726MX.2 and LCD-panel LSC480HN05 HK480WLEDM-MH12H.
Power Supply Unit (PSU) 401-2E201-D4201 Power Supply.
HAIER LE48M7000 TV with a LSC480HN05 LCD display, diagonal size 48 "(122 cm) in 16: 9 format. Dynamic contrast ratio of 4000000: 1 is achieved by special control of the LEDs. The LCD panel of the TV has direct illumination with rear LEDs - Direct LED. The design and technical capabilities of the TV include watching programs and movies in high quality HD at a resolution of 1920x1080 pixels in a graphical decomposition according to the standard 1080p (Full HD).
The LE48M7000 TV has built-in SMART Software and a pre-installed Android TV Operating System. Connecting to the Internet can be done via Wi-Fi. The input high-frequency or video signal can be processed in analogue systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, MKV, JPEG.
The power of the sound system 32 W (2x10 + 12 W) provide 3 speakers. It uses a NICAM stereo signal processing system and Sound Surround.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, SCART, VGA, HDMI x4, USB x3, Ethernet (RJ-45), Wi-Fi, WiDi. An output for connecting headphones is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector is used on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768, 1280x1024, 1360x768, 1920x1080.
A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C standards.
Overall dimensions: With stand 1085x677x244 mm, Without stand 1085x633x72 mm.
Attention! The LSC480HN05 HK480WLEDM-MH12H panel of the HAIER LE48M7000 LED TV is an expensive and unreliable element.
Avoid any impact on the glass and pressure on the surface of the screen to avoid damage to the LED panel!
It is also unsafe to get liquid on the screen. Sometimes one drop is enough if it flows down the glass onto the cables so that the TV becomes unrepairable.

REPAIR / SERVICING TV HAIER LE43K6500TF

Technical description and composition of the HAIER LE43K6500TF TV, type of panel and applicable modules. The composition of the modules.
HAIER LED
Model: LE43K6500TF
Chassis / Version: T.MS6486.751
Panel: LC430DUY-SHA1
LED backlight: LED42D08A-ZC26AG-01, LED42D08B-ZC26AG-01
T-CON: 6870C-0532A
LED driver (backlight): integrated into MainBoard
Power Supply (PSU): TV5006-ZC02-02
PWM Power: PWM SOT23-6
MOSFET Power: TO-220
MainBoard: T.MS6486.751
IC MainBoard: AND: MX30LF4G18AC-TI, DRAM: NT5CB256M16DP-EK, WIFI-2-M603USA1
Tuner: DVB-T, DVB-T2, DVB-C
Technical Specifications LE43K6500TF
HAIER LE43K6500TF
General repair guidelines for TV LCD LED
Possible malfunctions
- The HAIER LE43K6500TF TV does not turn on, does not respond to the remote control and the control panel buttons, the indicators do not light or flash.
With such manifestations, a malfunction is most likely to be detected in the TV5006-ZC02-02 power supply module. It is necessary to measure its secondary output voltages, and in case of their absence, check the power switches (TO-220) and rectifier diodes in the converters for a short circuit.
In case of diode breakdowns in the secondary circuits, the converter can operate in emergency short-circuit mode without output voltages, and during short circuit in the power elements of the primary circuit, the mains fuse and / or current sensor at the source of the key usually breaks.
Breakdown of power switches (MosFet) in pulsed sources is sometimes caused by malfunctions of other circuit elements, for example, in circuits supplying a PWM controller, frequency-setting or damper ones, as well as in negative feedback circuits (OOS) of stabilization. PWM controllers (PWM) PWM SOT23-6, if they do not have visible damage to the case and open short circuit between the terminals, are usually checked by replacement.
- There is no image, but there is sound and reaction to the remote control. Or for a second, the image may appear immediately after switching on.
In most of these cases, a malfunction is detected in the nodes and backlight elements of the LED panel. The reason can sometimes be in the power of the LEDs, but more often in their malfunction (breakdown or break), sometimes in the violation of the contact connections of the LED strips.
To check the LED lines for breaks without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter, a voltage of the order of several tens of volts is required.
- The TV does not turn on, the indicator indicates standby or operating mode, or blinks.
Repair or diagnostics of the T.MS6486.751 motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). Board repair and chip replacement AND: MX30LF4G18AC-TI, DRAM: NT5CB256M16DP-EK, WIFI-2-M603USA1 are made with the necessary equipment, and the corresponding element base. Faults associated with the application of BGA processor soldering technologies can be localized by the heating method.
In cases where there is no tuning to the channels of on-air or cable television, you should make sure that the software is correct, as well as in accordance with the ratings of the supply voltages at the terminals of the DVB-T, DVB-T2, DVB-C tuner. It is also necessary to check the presence of pulses of data exchange between the tuner and the processor via the I2C bus using an oscilloscope.

We recommend LE43K6500TF TV owners to be repaired only by qualified specialists with the necessary work experience! Self-repair attempts without the appropriate knowledge and skills can lead to irreversible negative consequences!

The appearance of MainBoard T.MS6486.751 is shown in the figure below:
T.MS6486.751
The appearance of the power supply
Key Features of HAIER LE43K6500TF:
Installed matrix (LED-panel) LC430DUY-SHA1.
The matrix control uses the Timing Controller (T-CON) 6870C-0532A.
A converter is used to power the backlight LEDs, combined with the T.MS6486.751 main board.
The necessary supply voltages for all nodes of the TV HAIER LE43K6500TF are generated by the TV5006-ZC02-02 power module, or its analogs using PWM SOT23-6 microcircuits and TO-220 type power switches.
MainBoard - the main board (motherboard) is a T.MS6486.751 module, using AND: MX30LF4G18AC-TI, DRAM: NT5CB256M16DP-EK, WIFI-2-M603USA1 and others.
The tuner DVB-T, DVB-T2, DVB-C provides the reception of television programs and tuning to channels.

Brand: HAIER, Model: LE43K6500TF.
Briefly from the TV: LCD, LED backlight, 42.5 ", 1920x1080, 1080p Full HD, HDR, DVR, sound: 20W, HDMI: 3, Internet access, Wi-Fi, Smart TV.
Manufacturer: TPV ICS Russia, Shushary, St. Petersburg and Qingdao Haier Industry Zone (China).
Developer: Haier Group Corporation. Qingdao (Qingdao). China
The composition uses MainBoard T.MS6486.751 and LCD-panel LC430DUY-SHA1.
Power Supply Unit (PSU) TV5006-ZC02-02 Power Supply.
HAIER LE43K6500TF TV with LCD display LC430DUY-SHA1, diagonal size 42.5 "(108 cm) in 16: 9 format. The required brightness of the screen is 250 cd / m² LED backlight LED. Contrast, as the ratio of maximum brightness to minimum, is 1200: 1. Direct LED backlighting with Direct LEDs is realized in the LCD panel of the TV, and the TV’s design and technical features include watching broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in a graphic resolution of 1080p (Full HD). brabotka images produced by modern technology of High Dynamic Range (HDR) with an extended range of brightness levels.
The LE43K6500TF TV has built-in SMART Software and pre-installed Linux Operating System. Connecting to the Internet can be done via Wi-Fi. Supported media file formats: MP3, WMA, MPEG4, HEVC (H.265), Xvid, DivX, MKV, JPEG.
The power of the sound system 20 W (2x10 W) provides two speakers. It uses a NICAM stereo signal processing system and Sound Surround.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, VGA, HDMI x3, USB x2, Ethernet (RJ-45), Wi-Fi 802.11n. An output for connecting headphones is provided.
A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
The power consumed by the TV working in the network mode is 78 watts.
Overall dimensions: with stand 966x619x250 mm, without stand 966x559x64 mm.
TV Weight: with stand: 7.69 kg, without stand: 7.55 kg.
Attention! The panel of the LC430DUY-SHA1 LED-TV HAIER LE43K6500TF is an expensive and unreliable element.
Avoid any impact on the glass and pressure on the surface of the screen to avoid damage to the LED panel!
It is also unsafe to get liquid on the screen. Sometimes one drop is enough if it flows down the glass onto the cables so that the TV becomes unrepairable.

REPAIR / SERVICING TV HAIER LE43K6000SF

Technical description and composition of the HAIER LE43K6000SF TV, type of panel and applicable modules. The composition of the modules.
HAIER LED
Model: LE43K6000SF
Chassis / Version: MS36633-ZC01-01
Panel: LC430DUY-SHA1
LED backlight: LED42D08B-ZC23AG-04 30342008205
LED driver (backlight): integrated into MainBoard
PWM LED driver: 8 pin
MOSFET LED driver: TO-252
Power Supply (PSU): integrated into MainBoard
PWM Power: PWM SOT23-6
MOSFET Power: TO-252
MainBoard: MS36633-ZC01-01
IC MainBoard: SPI Flash: GD25Q64
Tuner: NoName
Control: Service mode INPUT-2580
Specifications LE43K6000SF
HAIER LE43K6000SF
General repair guidelines for TV LCD LED
Possible malfunctions
- The HAIER LE43K6000SF does not turn on at all. The control lights do not light or flash. The TV on the remote control and the control panel buttons do not respond.
In such cases, the AC / DC voltage converter is often faulty, which is combined with the main board MS36633-ZC01-01. It is necessary to verify the presence of its output voltages and, if they are completely absent, check the power switches (TO-252) and rectifier diodes for a probable short circuit.
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in emergency short-circuit mode without output voltages, and during short circuit in the elements of the primary circuit, the main fuse and, less often, the current sensor at the source of the key are most often cut off.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM controller, in frequency-setting or damping circuits, as well as in Negative Stabilization Feedback. PWM SOT23-6 PWM chips are usually checked by replacing with new ones, or obviously working.
- There is no image, there is sound, all other functions of the TV work. When turned on, the image may sometimes appear for a second.
The most likely in these cases is a malfunction of the LED backlight. The reason can be found in the malfunction of the LEDs, in the violation of the contact connections of the LED strips, or in the provision of their power (LED-driver).
To check the health in the LED circuit, it is better to use a current source with a maximum voltage of 200V. We do not recommend using any voltage sources for this purpose. You can check each LED individually with a simple Chinese multimeter (powered by 9 volts) in the P-N-junction test mode. If you connect the red probe of the multimeter to the anode of the LED, and the black to its cathode, then the 3-volt LED will light up slightly, and in the opposite direction you can detect the transition of the emergency zener diode. A zener diode PN junction indirectly indicates a LED-a
- The indicator blinks or lights constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the MS36633-ZC01-01 motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). Often, the MB (SSB) card must be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - SPI Flash: 25Q64 and replace failed chips with new ones. Some malfunctions may be due to the use of BGA soldering technologies in modern Main Board technologies. Typically, such defects are detected by local heating of the chip.
The failure of the NoName tuner is established after checking the software and all the supply voltages at its terminals. The data exchange of the tuner with the processor via the I2C bus can be controlled by an oscilloscope.

Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Entrust repair to professionals with sufficient experience in the field of repair of electronic equipment.

FIRMWARE FOR SPI FLASH ---------------->  HAIER LE43K6000SF, Main: MS36633-ZC01-01, Panel: LC430DUY-SHA1

 The appearance of the MainBoard MS36633-ZC01-01 is shown in the figure below:
MS36633-ZC01-01
Key Features of HAIER LE43K6000SF:
Installed matrix (LED-panel) LC430DUY-SHA1.
To power the backlight LEDs, a converter is used, combined with the main board MS36633-ZC01-01, controlled by an 8 pin PWM controller. As power elements of the LED driver, keys of the TO-252 type are used.
The power module is combined with the MainBoard and is made according to the flyback AC / DC voltage converter circuit using PWM SOT23-6 microcircuits and TO-252 type power switches.
MainBoard - the main board (motherboard) is an MS36633-ZC01-01 module, using SPI Flash chips: GD25Q64 and others.
The NoName tuner provides television reception and channel tuning.

 HAIER LE43K6000SF TV with LCD display LC430DUY-SHA1, diagonal size 42.5 "(108 cm) in 16: 9 format. The required brightness of the screen is 250 cd / m² LED backlight LED. Contrast, as the ratio of maximum brightness to minimum, is 1200: 1. Direct LED backlighting with Direct LEDs is realized in the LCD panel of the TV. odderzhivaemye multimedia file formats: MP3, MPEG4, DivX, MKV, JPEG.
The power of the sound system 16 W (2x8 W) provide two speakers. It uses a NICAM stereo signal processing system and Sound Surround.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, VGA, HDMI x2, USB. An output for connecting headphones is provided.
The digital tuner is capable of receiving television channels in the standards DVB-T MPEG4, DVB-C, DVB-T2, DVB-S2.
Overall dimensions: with stand 966x620x250 mm, without stand 966x559x64 mm.
TV Weight: with stand: 7.69 kg, without stand: 7.55 kg.
Attention! The panel of the LC430DUY-SHA1 HAIER LE43K6000SF LED TV is an expensive and unreliable element.
Avoid any impact on the glass and pressure on the surface of the screen to avoid damage to the LED panel!
It is also unsafe to get liquid on the screen. Sometimes one drop is enough if it flows down the glass onto the cables so that the TV becomes unrepairable.