Technical description and composition of the SAMSUNG UE43N5300AU TV, panel type and modules used. The composition of the modules.SAMSUNG LED
Model: UE43N5300AU UE43N5300
Chassis / Version: LA02 / UN5300
Panel: T430HVF06.0
LED backlight: LM41-00622A, LM41-00624A
T-CON: T430HVN01.6 Ctrl BD 43T01-C04
LED driver (backlight): integrated into PSU
PWM LED driver: SO-8
MOSFET LED driver: TO-252
Power Supply (PSU): BN44-00852F L48MSFR_MDY
PWM Power: PFC (SO-8), PWM (SO-16)
MOSFET Power: TO-220F (PFC), TO-252
MainBoard: BN41-02663A BN94-13054R
IC MainBoard: SPI Flash: 25Q40, EEPROM: 24C512
Tuner: BN40-00331B
Control: IR: BN41-02515A, WI-FI: WIDT30Q BN59-01174D
UE43N5300AU Specifications
SAMSUNG UE43N5300AU
General recommendations for TV LCD LED repair
Possible malfunctions
- SAMSUNG UE43N5300AU 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 some of these cases, the main switching power supply, the BN44-00852F module, is faulty. It is necessary to measure the output voltages in its secondary circuits, and if they are completely absent, the serviceability of the power switches (TO-220F (PFC), TO-252) and rectifier diodes should be checked for a possible breakdown (short circuit).
In case of any breakdowns in the secondary circuits, the converter can operate in an emergency mode of a short circuit, and with a short circuit in the power elements of the primary circuit, the mains fuse or the current sensor at the source of the key often breaks off.
Mos-Fet power switches used in switching power supplies sometimes fail due to a malfunction of any other elements that can disable it in the key mode, or create an excess of the maximum permissible key parameters. These can be elements supplying a PWM regulator, frequency setting or damper circuits, or elements of negative feedback in the stabilization circuit. PWM controllers PFC (SO-8), PWM (SO-16), in the absence of visible damage or outright short circuits between the terminals, are checked by replacing them with new ones, or known to be working properly.
- 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.
A malfunction is usually in these cases most likely in the backlight units of the display matrix. Usually the cause of the malfunction is in the breakage of the LEDs, or in the connectors of the LED strips, but sometimes the LED driver is also faulty.
When diagnosing, it must be borne in mind that it is impossible to check for an open in the circuit of the LED lines without disassembling the panels using a tester or multimeter. To open all PN junctions connected in series, a voltage of the order of several tens of volts is required, and ideally a current source. Opening the panel, you can check each LED separately. Typically, Chinese multimeters will lightly light one 3-volt LED when the probes are connected to it in the forward direction. 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.
- The indicator on the front panel blinks, the TV does not turn on in operating mode, does not respond to the remote control.
Repair or diagnostics of the BN41-02663A 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). Repair of the board and replacement of SPI Flash: 25Q40, EEPROM: 24C512 microcircuits are performed with the necessary equipment and the corresponding element base. Failures associated with the use of BGA soldering technologies can be localized by warming up.
If there is no reception of TV channels, but the TV is working properly from external devices, first of all, you need to check the power supply voltage of the BN40-00331B tuner and update the software. I2C communication pulses must be monitored with an oscilloscope.
Users and owners of TVs need to remember that attempts to self-repair a SAMSUNG UE43N5300AU TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!
Additional MainBoard RepairThe appearance of the MainBoard BN41-02663A is shown in the figure below:
BN41-02663A
External view of the power supply
Main features of the SAMSUNG UE43N5300AU device:
The matrix (LED-panel) T430HVF06.0 is installed.
Matrix control uses Timing Controller (T-CON) T430HVN01.6.
To power the backlight LEDs, a converter combined with a power supply is used, controlled by an SO-8 PWM controller. TO-252 switches are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the SAMSUNG UE43N5300AU TV is carried out by the BN44-00852F power module, or its analogues using PFC (SO-8), PWM (SO-16) microcircuits and power switches of the TO-220F (PFC), TO-252 type ...
MainBoard - the main board (motherboard) is a BN41-02663A module, using SPI Flash chips: 25Q40, EEPROM: 24C512 and others.
The BN40-00331B tuner provides reception of television programs and tuning to channels.
There are files to download for the UE43N5300AUXRU model from the manufacturer:Latest firmware updates (latest firmwares):File type File name Version Date SizeUpdate file (USB) T-KTSNDEUC.zip 1292.1 02/18/2020 999.76 MbUpdate instruction 2018_TV_Firmware_Upgrade_Instruction_T-KTSNDEUC.pdf 1.0 23.06.2020 0.49 MbUpdate file (USB) T-KTSNDEUC_1292.1.exe 1292.1 02/18/2020 999.55 MbUpdate file (USB) T-KTSNDEUC_1292.1_RU.exe 1292.1 18.02.2020 999.55 MbUser Manuals and Instructions:File type File name Version Date SizeInstruction PDF ENG_KSFDVBEUN-1.0.2_180525.3.pdf - 29.06.2018 6.6 MbInstruction PDF RUS_KSFDVBEUN-1.0.2_180525.3.pdf - 29.06.2018 7.04 MbFiles can be downloaded from the manufacturer's website for the UE43N5300AUXRU model.
TV SAMSUNG UE43N5300AU with LCD T430HVF06.0, 42.5 "(108 cm) 16: 9 diagonal size. This model uses a panel with edge LED backlighting - Edge LED.
The T430HVF06.0 sensor and the MainBoard BN41-02663A software provide viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphics resolution in 1080p (Full HD).
The UE43N5300AU TV is equipped with SMART software, built-in applications and the ability to work on the Internet. The connection to the network can be carried out via Wi-Fi wireless connection. Supported media file formats: MP3, WMA, MPEG4, DivX, MKV, JPEG.
Speaker sound system power 20 W (2x10 W) is provided by two speakers. The NICAM stereo audio processing system and the Sound Surround function are used.
Communication with other devices via an external interface is supported by standard input and output connectors: antenna input (RF), AV, component, HDMI x2, USB, Ethernet (RJ-45), Wi-Fi, Miracast.
The digital tuner can receive TV channels in the DVB-T MPEG4, DVB-C, DVB-T2, DVB-S2 standards.
The power consumed in the operating mode from the network is 105 W. Power supply BN44-00852F.
Dimensions: with stand 980x597x170 mm, without stand 980x572x77 mm.
TV weight: with stand: 8.2 kg, without stand: 8 kg.
Attention! Panel T430HVF06.0 LED TV SAMSUNG UE43N5300AU 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.